Research

Research interests rest in the general area of agricultural or biological meteorology. Specific areas of interest include: crop water requirements, plant water relations, soil physics, salinity management and the impact of thermal stresses on biological systems.

Education
Ph.D.   1981.  Soil Science/Minor in Meteorology. University of Wisconsin at Madison.
M.S.    1979   Soil Science.  University of Wisconsin at Madison.
B.S.     1977   Atmospheric Science.  University of Missouri at Columbia.

Work Experience
July 1995 to present.  Extension Specialist & Research Scientist-Biometeorology.  Department of Soil, Water and Environmental Science. University of Arizona, Tucson, AZ.

July 1990 to July 1995.  Associate Extension Specialist & Research Scientist-Biometeorology.  Department of Soil, Water and Environmental Science. University of Arizona, Tucson, AZ.   

June 1985 to July 1990.  Associate Extension Specialist-Biometeorology. Department of Soil, Water and Environmental Science. University of Arizona, Tucson, AZ.

April 1981 to May 1985.  Senior Research Biologist, Senior Research Specialist and Research Group Leader. Monsanto Agricultural Products Co., St. Louis, MO.

Honors & Awards
2005: Environmental and Water Resources Institute Award for Task Committee Excellence American Society of Civil Engineers.
2001: Faculty of the Year Award.  Arizona Ag 100 Council.
1999: Extension Faculty of the Year.  University of Arizona

Professional Societies
American Society of Agronomy
Crop Science Society of America
Soil Science Society of American
American Society of Civil Engineers
Soil and Water Conservation Society of America

Honor Societies:
Sigma Xi
Phi Eta Sigma
Gamma Sigma Delta
Phi Kappa Phi
Alpha Zeta

Current Outreach and Technology Transfer Programs

Arizona Meteorological Network
The Arizona Meteorological Network (AZMET) is a network of 28 automated data collection platforms that provide weather data and weather-based management information to producers of agricultural and horticultural crops in Arizona. The weather stations are linked in near-real time to a data processing center located in Tucson, AZ which provides free, public access to the data via the Internet.  Weather-based products available from AZMET include: daily and hourly weather summaries for 28 locations, crop and turf water use advisories, daily heat unit totals for crop and pest management models, heat stress advisories, frost reports during winter and cotton production advisories.

Arizona Cotton Advisory Program
The Arizona Cotton Advisory Program generates and distributes weekly advisories to approximately 1000 cotton producers from mid-February through early September.  The advisories are generated each week using weather information from AZMET and provide timely information on soil temperatures for planting, crop development, irrigation requirements, heat stress, pest management and current and projected weather conditions.  Advisories are distributed to growers via the Internet, email, fax or postal service mailings.

Turf Irrigation Management
Lawn watering guides and turf water use reports are generated daily from AZMET weather information and distributed to the turf industry via daily newspapers, fax, email, and the Internet.  The water use reports provide estimates of turf water use for the past one, three and seven days for high and acceptable quality turf.  Educational programming helps landscape managers to integrate this information into their irrigation management programs while minimizing the adverse impact of salinity. 

Improved Irrigation Management in Southeast Arizona
The objective of this program is to improve water management in southeast Arizona by encouraging growers to implement modern irrigation management technology. A key feature of this program is publication each week of the Southeast Arizona Crop Water Use Report which is disseminated via the Internet.  This report provides information on local crop water requirements, reviews the weather forecast for the upcoming week and then discusses how forecasted weather conditions will impact future irrigation decisions.  Regular workshops are held in the region to help growers utilize the report as well as implement new irrigation technologies.  Installation of several new AZMET weather stations is planned as part of this project.

Current Research

Water & Salinity Management: High Maintenance Desert Turf Systems
Research is focused on developing best management practices for irrigation of high maintenance desert turf systems.  Current projects include studies to: 1) quantify the water requirements of desert turfgrass systems, 2) use electromagnetic induction as a non-destructive means of assessing soil salinity on golf course fairways, 3) quantify the water loss  due to evaporation and drift off target from commercial turf irrigation heads, and 4) evaluate turf quality and the potential for salinization when turf is irrigated in accordance with  ADWR water duties.

Impact of Heat Stress on Cotton Reproductive Development
The objectives of this work are to: 1) define the thermal environment that leads to heat stress in cotton, 2) delineate the stage of reproductive development most sensitive to heat stress, and 3) quantify the impact of heat stress intensity and duration on subsequent reproductive development.  Studies have been conducted in growth chambers, greenhouses and the field over the course of five years.  Results to date reveal increased abortion of flowers when mean crop temperatures rise above 28oC for the day.  High rates of abortion, resulting from floral abnormalities, develop when mean crop temperatures exceed 30oC.  The stage of reproductive development most sensitive to heat stress is when developing square (flower buds) is about 10 days from bloom.  Heat stress does not produce significant square abortion; instead, heat damaged squares complete development, bloom and then abort 3-5 days after flowering.  Crop temperatures can be modeled with reasonable accuracy by using both air temperature and humidity.  A cotton heat stress model and has been developed as a result of this work and output from the model is available daily via the AZMET Internet site. 

Siting of Automated Weather Stations: Impact on Estimates of Evapotranspiration
This study seeks to quantify the impact of fetch conditions adjacent to automated weather stations on computed values of reference evapotranspiration (ETo).  This study is being carried out along the Lower Colorado River in conjunction with the Bureau of Reclamation (BR).  BR plans to use ETo computed from weather stations to help assess water use along the Colorado River.  Poor weather station siting can lead to serious overestimates of ETo which in turn lead to overestimates vegetation water use along the River.  The objectives of this study are to: 1) quantify the impact of poor station siting on ETo, 2) develop improved siting criteria for automated weather stations used to estimate ETo, and 3) examine possible techniques that can be used to adjust meteorological data acquired from poor weather sites for use in estimating ETo. 

Quantifying the Water Requirements of Crops in the Lower Colorado River Valley
This objective of this work is to develop new information on the water requirements of  crops grown in the Lower Colorado River Valley.  Very few quantitative water use studies have been completed since the USDA last summarized crop water use in the early 1980s.  Four weighing lysimeters have been installed in Yuma Valley that can measure water use to within ~0.1 mm.  Current funded studies are examining the water use of lettuce and wheat.  The results from these studies will be used to develop new consumptive use curves as well as crop coefficients that can be used with reference evapotranspiration to estimate crop water use in near real time.  Additional crops will be evaluated at the conclusion of these initial studies.

PUBLICATIONS

REFEREED

Brown, P.W. and C.B. Tanner. 1981. Alfalfa Water Potential Measurement:  A Comparison of the Pressure Chamber and Leaf Dew Point Hygrometers.  Crop Sci.  21:240-244.

Brown, P.W. and C.B. Tanner. 1983. Alfalfa Stem and Leaf Growth During Water Stress.  Agron. J. 75:799-805.

Brown, P.W. and C.B. Tanner. 1983. Alfalfa Osmotic Potential:  A Comparison of the Water Release Curve and Frozen Tissue Methods.  Agron. J. 75:91-93.

Daughtry, C.J.T., W.P. Kustas, M.S. Moran, P.J. Pinter, Jr., R.D. Jackson, P.W. Brown, W.D. Nichols and L.W. Gay. 1990. Spectral Estimates of Net Radiation and Soil Heat Flux.  Remote Sens. Environ.  32:111-124.

Yitayew, M. and P. Brown. 1990. Predicting Daily Evapotranspiration (ET) From Short Term Values.  J. Irr. and Drainage  116(3):387-398, ASCE.

Jalali-Farahani, H.R., D.C. Slack, D.M. Kopec and P.W. Brown. 1994. Evaluation of Resistance for Bermuda Turf Crop Water Stress Index Models.  Agron. J. 86:574-581.

Reicosky, D.C., P.W. Brown and M.S. Moran. 1994. Diurnal Trends in Wheat Canopy Temperature, Photosynthesis and Evapotranspiration.  Remote Sens. Environ.  49:235-245.

Devitt, D.A., D. Kopec, M.J. Robey, R.L. Morris, P. Brown, V.A. Gibeault and D.C. Bowman. 1995. Climatic Assessment of the Arid Southwestern United States for Use in Predicting Evapotranspiration of Turfgrass.  J. Turfgrass Management 1(2):65-81.

Snyder, R.L., P.W. Brown and K.G. Hubbard.  1996.  Automated Agricultural Weather Networks.  Advances in Bioclimatology.  p. 1-61.  Springer Verlag.  New York, NY. 

Glenn, E., S. Miyamoto, D. Moore, J. Brown, T.L. Thompson and P. Brown. 1997. Water Requirements for Cultivating Salicornia bigelovii Torr. with Seawater on Sand in a Coastal Desert Environment.J. Arid Environ. 36:711-730.

Steger, A., J.C. Silvertooth and P.W. Brown. 1998. Upland Cotton and Yield Response to Timing the Initial Post-Plant Irrigation.Agron. J.  90:455-461.

Brown, P.W., C.F. Mancino, T.L. Thompson, M.H. Young, P.J. Wierenga and D.M. Kopec.  2001.  Penman Monteith Crop Coefficients for Use with Desert Turf Systems.  Crop Sci. 41: 1197-1206.

Brown, P. and S.A. Musil. 2004. Automated Data Acquisition and Processing.  Chpt.  4 in J. Artiola, I. Pepper, and M. Brusseau (ed). Environmental Monitoring and Characterization.  Elsivier Academic Press, Burlington, MA.

Walter, I.A., R.G. Allen, R. Elliot, D. Intefisu, P. Brown, M.E. Jensen, B. Mechem, T.A. Howell, R. Snyder, S. Eching, T. Spofford, M. Hattendorf, R.H. Cuenca, D. Martin, and J.L. Wright. 2005.  The ASCE Standardized Reference Evapotranspiration Equation.  ASCE, Reston, VA.

Glenn, E.P, A.R. Huete, P.L. Nagler, K.K. Hirschboeck and P. Brown. 2007. Critical Review in Plant Science.  26(3): 139-168.

Jordan, F.L., M. Yoklic, K. Morino, P. Brown, R. Seaman and E.P. Glenn. 2009. Consumptive Water Use and Stomatal Conductance for Atriplex Lentifomis Irrigated With Industrial Brine. Accepted: Agric. & Forest Meteorology.

Brown, P.W. and C.A. Zeiher. 2009. Impact of Short Duration Heat Stress on the Reproductive Performance of Upland Cotton.  In Review.

EXTENSION & EXPERIMENT STATION BULLETINS/REPORTS

Ottman, M., P. Brown and J. Harper. 1987. Yield and Water Use of Wheat as Influenced By Early Irrigation at Maricopa, 1987.  Forage and Grain:  A College of Agriculture Report. Series P-71.  Univ. of Arizona, Tucson, AZ.  p. 140-145.

Ottman, M., T. Ramage, P. Brown and G. Thacker. 1987. Yield and Water Use of Barley Cultivars Compared Under an Irrigation Water Gradient at Marana, 1987.  Forage and Grain:  A College of Agriculture Report. Series  P-71.  Univ. of Arizona, Tucson, AZ.  p. 75-81.

Brown, P., D. Kopec and C. Mancino. 1988. Estimating Turfgrass Water Use with AZMET.  Turfgrass And Ornamental Research Summary.  College of Agriculture. Series P-75.  Univ. of Arizona, Tucson, AZ.  p. 25-33.

Gibson, R., P. Brown and N. Oebker. 1988. Honeydew Measles:  A Potential Threat to Commercial Honeydew Production.  Pinal Co. Ext. Rpt.  Casa Grande, AZ.  6 p.

Young, D. and P. Brown. 1988. Weather Conditions Associated with the Development of Southwestern Rust on Cotton.  Cotton:  A College of Agriculture Report.  Series P-72.  Univ. of Arizona, Tucson, AZ.  p. 171-174.

Brown, P., R. Gibson and N. Oebker. 1989. Honeydew Measles:  A Potential Threat To Commercial Honeydew Production.  1989 Vegetable Report.  College of Agriculture.  Series  P-78.  Univ. of Arizona, Tucson, AZ.  p. 102-106.

Brown, P.W. 1989. Estimating Crop Water Use Using Weather-Based Estimates of Evapotranspiration.  Chpt. 3.  In T. Scherer (ed.)  Guide and Reference for Irrigation Management and Soil Amendments.  University of Arizona Extension In-Service Training Manual.  Univ. of Arizona, Tucson, AZ.  21 p.

Brown, P.W. 1989.  Heat Units.  Ext. Rpt. #8915. Univ. of Arizona, Tucson, AZ.  12 p.

Brown, P.W. 1989. Accessing the Arizona Meteorological Network by Computer.  Ext. Rpt. #8733.  Univ. of Arizona, Tucson, AZ.  26 p.

Brown, P.W. 1990. Chill Hour Assessment for the Yuma Area.  Deciduous Fruit and Nut: A College of Agriculture Report.  Series P-83.  Univ. of Arizona, Tucson, AZ.  p. 155-160.

Brown, P.W. 1990. Helicopters and Frost Prevention:  A Preliminary Evaluation.  Deciduous Fruit and Nut: A College of Agriculture Report. Series P-83.  Univ. of Arizona, Tucson, AZ.  p. 161-165.

Brown, P., R. Huber and L. Moore. 1990. Planting Date and Susceptibility to Pink Bollworm.  Cotton:  A College of Agriculture Report. Series P-81.  Univ. of Arizona, Tucson, AZ.  p. 152-161.

Brown, P.W. 1990.  Ground-Based Meteorological Data Acquired During The 1989 MAC IV/McSpot Project.  Final project reported submitted to USGS, June 1990.  36 p.

Brown, P., J. Silvertooth and L. Moore. 1991. Planting Date and Susceptibility to Pink Bollworm.  Cotton:  A College of Agriculture Report.  Series P-87.  Univ. of Arizona, Tucson, AZ.  p. 126-132.
Silvertooth, J.C., P.W. Brown and J.E. Malcuit.  1991.  Basic Cotton Development Patterns.  Cotton:  A College of Agriculture Report.  Series P-87.  Univ. of Arizona, Tucson, AZ.  p. 43-49.

Kopec, D.M., P.W. Brown, C.F. Mancino, D.C. Slack and A. Matthias. 1991. Developing Crop Coefficients for Desert Turfgrass; Calibrating Reference ET with Water Use.  1991 Turfgrass and Ornamental Research Summary. College of Agriculture.  Series P-86.  Univ. of Arizona, Tucson, AZ.  p. 43-46.

Slack, D.C., D.M. Kopec, P.W. Brown and A.M. Matthias. 1991. Evaluation and Comparison of Crop Water Stress Index Models for Irrigation Scheduling of Bermudagrass Turf.  1991 Turfgrass and Ornamental Research Summary. College of Agriculture.  Series P-86.  Univ. of Arizona, Tucson, AZ.  p. 47-50.

Brown, P.W. 1991. Normal Values of Heat Unit Accumulation for Southern Arizona.  Ext. Rpt.  190041.  Univ. of Arizona, Tucson, AZ.  61 p.

Cooperative Extension Task Force on Global Climate Change (K. Perry, B. Rein, C. Absher, P. Brown, D. Masonis, P. McCawley, N. Strommen and S. Taylor). 1991. Global Climate Change White Paper.  Cooperative Extension System, USDA, Washington, D.C.  7 p.

Brown, P. and B. Russell. 1992. Weather Conditions During the 1991 Growing Season. Cotton: A College of Agriculture Report. Series P-91.  Univ. of Arizona, Tucson, AZ. p. 1-6.

Brown, P., B. Russell, J. Silvertooth, L. Moore, S. Stedman, G. Thacker, L. Hood, S. Husman, D. Howell and R. Cluff. 1992. The Arizona Cotton Advisory Program.  Cotton: A College of Agriculture Report. Series P-91. Univ. of Arizona, Tucson, AZ. p. 233-240.

Brown, P., J. Silvertooth, L. Moore and T. Watson. 1992. Revised Planting Window for Full Season Cotton Varieties.  Cotton: A College of Agriculture Report. Series P-91. Univ. of Arizona, Tucson, AZ. p. 241-251.

Silvertooth, J.C., P.W. Brown and J.E. Malcuit. 1992. Cotton Crop Growth and Development Patterns.  Cotton: A College of Agriculture Report. Series P-91.  Univ. of Arizona, Tucson, AZ. p. 9-24.

Silvertooth, J.C., T.F. Watson, J.E. Malcuit and P.W. Brown. 1992. Evaluation of Date of Planting and Irrigation Termination on the Yield Of Upland and Pima Cotton.  Cotton: A College of Agriculture Report. Series P-91. Univ. of Arizona, Tucson, AZ. p. 252-273.

Silvertooth, J.C., S.H. Husman, S.W. Stedman, P.W. Brown and D.R. Howell. 1992. Defoliation of Pima Cotton, 1991.  Cotton: A College of Agriculture Report. Series P-91.  Univ. of Arizona, Tucson, AZ. p. 289-301.

Brown, P.W., T.F. Watson and J.C. Silvertooth. 1993. Weather Conditions Associated with Outbreaks of Severe Whitefly Infestations in Arizona.  Cotton:  A College of Agriculture Report. Series P-94. Univ. of Arizona, Tucson, AZ.  p. 206-215.

Brown, P., J. Silvertooth and J. Malcuit. 1993. Evaluation of the Pressure Chamber for Timing Early Season Irrigations.  Cotton:  A College of Agriculture Report. Series P-94.  Univ. of Arizona, Tucson, AZ.  p. 181-187.

Brown, P. and B. Russell. 1993. Weathering Conditions During the 1992 Growing Season.  Cotton:  A College of Agriculture Report. Series P-94. Univ. of Arizona, Tucson, AZ.  p. 1-7.

Brown, P., B. Russell, J. Silvertooth, P. Ellsworth, S. Stedman, G. Thacker, L. Hood, S. Husman, R. Cluff and D. Howell. 1993. The Arizona Cotton Advisory Program.  Cotton:  A College Of Agriculture Report. Series P-94. Univ. of Arizona, Tucson, AZ.  p. 11-17.

Silvertooth, J.C., P.W. Brown and J.E. Malcuit. 1993. The Development and Delivery of a Crop Monitoring Program for Upland and Pima Cotton in Arizona.  Cotton:  A College of Agriculture Report. Series P-94. Univ. of Arizona, Tucson, AZ.  p. 17-26.

Silvertooth, J.C., T.F. Watson, J.E. Malcuit. 1993. Evaluation of Date of Planting and Irrigation Termination on the Yield of Upland and Pima Cotton, 1992.  Cotton:  A College of Agriculture Report. Series P-94. Univ.  of Arizona, Tucson, AZ.  p. 27-39.

Silvertooth, J.C., S.H. Husman, P.W. Brown and J. Burnett. 1993. Cotton Defoliation Evaluations, 1992.  Cotton:  A College of Agriculture Report. Series P-94. Univ. of Arizona, Tucson, AZ.  p. 44-55.

Brown, P.W. 1993. User's guide to the Arizona Meteorological Network Phoenix Area Node.  2nd Edition.  City of Phoenix, Water Conservation and Resource Division and Univ. of Arizona.  21 p.

Ellsworth, P.C., J.P. Diehl, J.C. Silvertooth, P.W. Brown, T.F. Watson, L.R. Hood, S.H. Husman, G.W. Thacker, L.J. Clark, R.E. Cluff, T.A. Doerge, D.R. Howell, W.B. McCloskey, S.W. Stedman, R.E. Tronstad and J.C. Wade.  1993. Sweetpotato Whitefly in Arizona.  Cotton:  A College of Agriculture Report. Series P-94.  Univ. of Arizona, Tucson, AZ.  p. 283-296.

Brown, P.W. 1994. Operational Assistance for the Arizona Meteorological Network.  Arizona Citrus Industry 1993 Research Progress Report.  College of Agriculture, Univ. of Arizona, Tucson, AZ. p. 36-40.

Brown, P. And B. Russell. 1994. 1993 Weather Conditions. Cotton: A College of Agriculture Report. Series P-96.  Univ. of Arizona, Tucson, AZ. p. 1-7.

Brown, P., B. Russell, J. Silvertooth, P. Ellsworth, S. Stedman, G. Thacker, L. Hood, S. Husman, R. Cluff and D. Howell. 1994. The 1994 Cotton Advisory Program. Cotton: A College of Agriculture Report. Series P-96. Univ. of Arizona, Tucson, AZ.  p. 11-17.

Silvertooth, J.C., P.W. Brown, E.R. Norton and B.L. Unruh. 1994. Evaluation of Date of Planting On The Yield of Several Varieties at Marana, 1993.  Cotton: A College of Agriculture Report. Series P-96. Univ. of Arizona, Tucson, AZ.  p. 26-32.

Zeiher, C.A., P.W. Brown, J.C. Silvertooth, N. Matumba and N. Mitton. 1994. The Effect of Night Temperature on Cotton Reproductive Development.  Cotton: A College of Agriculture Report. Series P-96. Univ. of Arizona, Tucson, AZ.  p. 26-32.

Brown, P.W. and J.C. Silvertooth. 1994. Boll Maturity Estimates for Mid- and Late-Season Flowering Dates in Arizona.  Cotton: A College of Agriculture Report. Series P-96.  Univ. of Arizona, Tucson, AZ.  p. 97-103.

Steger, A.J., J.C. Silvertooth and P.W. Brown. 1994. Use of Leaf Water Potentials to Determine Timing of Initial Post-Plant Irrigation.  Cotton: A College of Agriculture Report.  Series P-96.  Univ. of Arizona, Tucson, AZ. p. 207-219.

Brown, P.W., T. Machibya and B. Russell. 1995. Wind Flow Patterns at the University of Arizona Agricultural Centers.  Technical Bulletin 268. Univ. of Arizona Agricultural Experiment Station. 215 p.

Brown, P., B. Russell and J. Silvertooth. 1995. 1994 Weather Conditions.  Cotton: A College of Agriculture Report. Series P-99. Univ. of Arizona, Tucson, AZ.  p. 1-5.

Brown, P., B. Russell, J. Silvertooth, P. Ellsworth, S. Stedman, G. Thacker, S. Husman, R. Cluff, D. Howell, S. Winans and R. Grumbles. 1995. The 1995 Arizona Cotton Advisory Program.  Cotton: A College of Agriculture Report. Series P-99. Univ. of Arizona, Tucson, AZ.  p. 13-19.

Unruh, B.L., J.C. Silvertooth, P.W. Brown and E.R. Norton. 1995. Effect of Planting Date on Yield of Upland and Pima Cotton Varieties at Marana.  Cotton: A College of Agriculture Report.  Series P-99.  Univ. of Arizona, Tucson, AZ.  p. 20-24.

Martin, E.C., S. Husman, R. Wegener, P. Brown, K. Johnson and L. Schnakenberg.  1995. Determining Soil Moisture for Irrigation Management.  Cotton: A College of Agriculture Report. Series P-99. Univ. of Arizona, Tucson, AZ.  p. 170-174.

Steger, A.J., J.C. Silvertooth and P.W. Brown. 1995. Timing Initial Post-Plant Irrigation Based Upon Plant Water Status.  Cotton: A College of Agriculture Report. Series P-99.  Univ. of Arizona, Tucson, AZ.  p. 178-193.

Husman, S., R. Wegener, P. Brown, E. Martin, K. Johnson and L. Schnakenberg.  1995. Upland Cotton Water Stress Sensitivity by Maturity Class and Suggested Management Strategy.  Cotton: A College of Agriculture Report. Series P-99. Univ. of Arizona, Tucson, AZ.  p. 194-202.

Guthrie, D., P. Brown, T. Burch and W. McCarty.  1995.  Cotton Stand Establishment.  Cotton Physiology Today. Vol. 6, No. 2, FEB-MAR 1995. 4 p.

Owen-Joyce, S.  and P. Brown. 1995. Meteorological and Associated Data Collected Over Agricultural Fields in Pinal County, Arizona, 1989 and 1990.  Open File Rpt. 95-122.  USGS, Tucson, AZ.  52 p.

Brown, P., B. Russell and T Machibya. 1996. 1995 Weather Conditions.  Cotton:  A College of Agriculture Report.  Series P-103.  Univ. of Arizona, Tucson, AZ. p. 1-20.

Brown, P., B. Russell, J. Silvertooth, P. Ellsworth, S. Stedman, G. Thacker, S. Husman,  R. Cluff, D. Howell, S. Winans, R. Grumbles, T Knowles, D. Dunn and M. Schneider.  1996.  The 1996 Arizona Cotton Advisory Program.  Cotton:  A College of Agriculture Report.  Series P-103. Univ. of Arizona, Tucson, AZ. p. 26-33.

Silvertooth, J.C., E.R. Norton and P.W. Brown.  1996.  Cotton Growth and Development Patterns.   Cotton:  A College of Agriculture Report.  Series P-103.  Univ. of Arizona, Tucson, AZ.  p. 75-97.

Husman, S., F. Metzler, R. Wegener, K. Johnson, L. Schnakenberg, P. Brown and E. Martin.  1996.  Upland Cotton Water Stress Sensitivity by Maturity Class.  Cotton: A College of Agriculture Report.  Series P-103.  Univ. of Arizona, Tucson, AZ. p. 191-205.

Sanchez, C.A, M. Wilcox, G.C. Wright and P. Brown.  1996.  Efficient Irrigation and Nitrogen Management for Lemons: Results for 1993-1995.  1996 Citrus Research Report.  Series P-105.  Univ. of Arizona, Tucson, AZ.  p. 78-94.

Sammis, T.W. and P. Brown.  1996.  Controlling the Pecan Nut Casebearer by Applying Insecticide. New Mexico St. Univ. Ext. Bull. Electronic Publication. Address:  http://weather.nmsu.edu//diseases.html).

Brown, P. Turfgrass Irrigation with Municipal Effluent: Nitrogen Fate, Turf Kc Values and Water Requirements. 1996. 1995 Turfgrass and Envronmental Research Summary.  USGA, Far Hills, NJ p. 38-40.

Brown, P., B. Russell and T Machibya. 1997. 1996 Weather Conditions.  Cotton:  A College of Agriculture Report.  Series P-108.  Univ. of Arizona, Tucson, AZ. p. 1-20.

Brown, P., B. Russell, J. Silvertooth, P. Ellsworth, S. Stedman, S. Husman,  R. Cluff, D. Howell,  T. Knowles, L Clark, D. Dunn and M. Schneider.  1996.  The 1997 Arizona Cotton Advisory Program.  Cotton:  A College of Agriculture Report.  Series P-108. Univ. of Arizona, Tucson, AZ. p. 23-30.

E.R. Norton, J.C. Silvertooth and P.W. Brown.  1997.  Evaluation of Planting Date Effects on Cotton Growth and Yield for Upland and Pima Cotton, Marana, 1995.  Cotton:  A College of Agriculture Report.  Series P-108.  Univ. of Arizona, Tucson, AZ.   p. 41-48.

J.C. Silvertooth, E.R. Norton and P.W. Brown.  1997.  Evaluation of Planting Date Effects on Crop Growth and Yield for Upland and Pima Cotton, 1996.  Cotton:  A College of Agriculture Report.  Series P-108.  Univ. of Arizona, Tucson, AZ.   p. 49-61.

Brown, P.W. and C.A. Zeiher.  1997. Cotton Heat Stress.  Cotton:  A College of Agriculture Report.  Series P-108.  Univ. of Arizona, Tucson, AZ.   p. 91-104.

Norton, E.R., J.C. Silvertooth and P.W. Brown.  1997.  Review of Irrigation Timing Studies Conducted in 1995 and 1996.  Cotton:  A College of Agriculture Report.  Series P-108.  Univ. of Arizona, Tucson, AZ.   p. 192-199.

Brown, P. Turfgrass Irrigation with Municipal Effluent: Nitrogen Fate, Turf Kc Values and Water Requirements. 1997. 1996 Turfgrass and Environmental Research Summary.  USGA, Far Hills, NJ p.34-35.

Brown, P.  1997.  El Nino Update.  AZMET Extension Update.  Sept. 1997. 1 p.

Brown, P. and B. Russell. 1997. Internet Access of AZMET. AZMET Extension Update. May 1997. 11 p.

Brown, P., B. Russell, J. Silvertooth, P. Ellsworth, S. Husman, T Knowles, L. Clark, D. Dunn and M. Schneider.  1998.  The 1998 Arizona Cotton Advisory Program.  Cotton:  A College of Agriculture Report.  Series P-112.  Univ. of Arizona, Tucson, AZ.   p. 5-12.

Silvertooth, J.C., E.R. Norton and P.W. Brown, 1998.  Evaluation of Planting Date Effects on Crop Growth and Yield for Upland and Pima Cotton, 1997.  Cotton:  A College of Agriculture Report.  Series P-112.  Univ. of Arizona, Tucson, AZ.   p. 20-33.

Brown, P.W. and B.T. Russell.  1998.  Phoenix Area Turf Water Management Information.  Ext. Pub.AZ1057.  College of Agriculture, Univ. of Arizona, Tucson, AZ. 6p.

Brown, P., B. Russell, J. Silvertooth, P. Ellsworth, S. Stedman, S. Husman,  R. Cluff, D. Howell,  T. Knowles, L Clark, D. Dunn and M. Schneider.  1998.  The 1998 Arizona Cotton Advisory Program.  Cotton:  A College of Agriculture Report.  Series P-112. Univ. of Arizona, Tucson, AZ. p. 5-12.

J.C. Silvertooth, E.R. Norton and P.W. Brown.  1998.  Evaluation of Planting Date Effects on Crop Growth and Yield for Upland and Pima Cotton, 1997.  Cotton:  A College of Agriculture Report.  Series P-112.   Univ. of Arizona, Tucson, AZ.   p. 20-33.

Brown, P.W. 2000.  Basics of Evaporation and Evapotranspiration.  Turf Irrigation Management Series: No. 1. Ext. Rpt. 1195.  College of Agriculture & Life Sci., Univ. of Arizona, Tucson, AZ.

Brown, P.W. and D.M. Kopec. 2000.  Converting Reference Evapotranspiration into Turf Water Use.  Turf Irrigation Management Series: No.  2.  Ext. Rpt. 1194.  College of Agriculture & Life Sci., Univ. of Arizona, Tucson, AZ.

Brown, P., B. Russell, J. Silvertooth, P. Ellsworth, M. Olsen, S. Husman, L. Clark, and M. Schneider.  2000.  The 2000 Arizona Cotton Advisory Program.  Cotton:  A College of Agriculture Report.  AZ1170. College of Agriculture, Univ. of Arizona, Tucson, AZ.

Brown, P. and B. Russell.  2000.  How To Obtain Cotton Advisories From the Internet. Cotton:  A College of Agriculture Report.  AZ1170.  Univ. of Arizona, Tucson, AZ.  11p. 

Brown, P.W. 2000.  Winter Precipitation Update.  North Central Arizona Newsletter.  Gila Co. Cooperative Extension.  Payson, AZ.

Brown, P.W. 2001.  Siting and Maintenance of Weather Stations.  Turf Irrigation Management Series: No. 3. Ext. Rpt. 1260.  College of Agriculture & Life Sci., Univ. of Arizona, Tucson, AZ.

Brown, P.W. and B.T. Russell.  2002, Phoenix Area Turf Water Management Information.  Publication AZ1057. College of Agriculture and Life Sci., Univ. of Arizona, Tucson. 6p.

Brown, P.W. 2002.  Meteorological Normals for AZMET Weather Stations. Published in PDF and ASCII  text file formats at http://ag.arizona.edu/azmet.

Brown, P.W. 2003.  Turfgrass Consumptive Use Values for the Tucson Area.  Turf Irrigation Management Series: No 4.  Ext. Rpt. 1313. College of Agriculture & Life Sci., Univ. of Arizona, Tucson, AZ.

Brown, P.W. 2003.  Turfgrass Consumptive Use Values for the Phoenix Area.  Turf Irrigation Management Series: No 5.  Ext. Rpt. 1314. College of Agriculture & Life Sci., Univ. of Arizona, Tucson, AZ.

Brown, P.W. and W.  Albrecht.  2004.  Turfgrass Consumptive Use: Flagstaff.  Turf Irrigation Management Series: No.  6. Ext. Rpt.1353. College of Agricultural & Life Sci., Univ. of Arizona, Tucson, AZ.

Brown, P.W. and J.  Schalau.  2004.  Turfgrass Consumptive Use: Prescott.  Turf Irrigation Management Series: No. 7. Ext. Rpt.1354. College of Agricultural & Life Sci., Univ. of Arizona, Tucson, AZ.

Brown, P.W. and J.  Schalau.  2004.  Turfgrass Consumptive Use: Payson.  Turf Irrigation Management Series: No.  8. Ext. Rpt.1355. College of Agricultural & Life Sci., Univ. of Arizona, Tucson, AZ.

Brown, P.W. 2005.  Standardized Reference Evapotranspiration: A New Procedure for Estimating Reference Evapotranspiration in Arizona. Ext. Rpt.1324. College of Agricultural & Life Sci., Univ. of Arizona, Tucson, AZ.

Brown, P.W. 2005.  Fall Precipitation Assessment.  Report Submitted to the Arizona Cotton Research and Protection Council & Arizona Department of Agriculture.  19p.

Brown, P.W. 2006. Evaluation of ADWR Water Duties for Large Turf Facilities.  Turf Irrigation Management Series: No.  9.  Ext. Rpt.1381. College of Agriculture & Life Sci., Univ. of Arizona, Tucson, AZ.

Brown, P.W. 2008.  Cotton Heat Stress.  Ext. Rpt. AZ1448.  College of Agriculture & Life Sci., Univ. of Arizona, Tucson, AZ.

Brown, P.W. 2008. Turfgrass Consumptive Use: Mohave County, Arizona.  Ext. Rpt.  AZ1447. College of Agric. & Life Sci. Univ. of Arizona. Tucson, AZ.

POPULAR PUBLICATIONS                                                                                                           

Hart, W.E., E.N. Biggs, D.C. Slack and P.W. Brown.  1985. Water-Energy Management.  Arizona Land and People 36(3):7-9.

Brown, P.W. 1987. Biometeorology Program Provides Weather Information.  Agri-News.  6(1):3.

Hofmann, W.C., J.C. Wade, P.W. Brown and D.L. Larson. 1987. Computerized Cotton Production.  Arizona Land and People.  38(1):35.

Garrot, D.J., S. Husman, C. Mancino, D. Fangmeier, P. Brown and R. Trap. 1987.  Using Infrared Thermometers to Schedule Irrigation.  Grounds Maintenance 22(7):46,77.

Brown, P.W. 1987. AZMET Weekly Weather Summary.  Produced weekly 1987-1990 for B. Tickes (ed.) Arizona Alfalfa Market Report, Univ. of Arizona, Tucson, AZ.

Brown, P.W. 1987.  Using Computer Bulletin Boards to Control Near-Real Time Weather Networks:  A Cost-Effective and Functional Solution.  The Tripod, The Institute of Agriculture and Natural Resources, Univ. of Nebraska, Lincoln, NE.  Spring 1988:  p. 8-11.

Brown, P.W. 1987.  User's Guide to the Arizona Meteorological Network.  City of Phoenix, Water Conservation and Resource Division Publication.  28 p.

Brown, P.W. 1987.  AZMET Evapotranspiration Estimates:  A Tool for Improving Water Management of Turfgrass.  City of Phoenix, Water Conservation and Resource Division Publication.  3 p.

Butler, M., P. Brown and E. Fallahi. 1988. Chemical Freeze Protection of Citrus 1987/1988.  Yuma Co. Farm Notes.  SEP 1988.  p. 10-15.

Brown, P.W. 1988.  AZMET:  A New Source for Ag-Weather Information.  Access-Pesticides.  13(2):3.

Brown, P.W. 1988.  The Killing Frost of 1988:  How Rare Was It?  Cochise Co. Fruit and Nuts.  JUL 1988.  p. 3-5.

Brown, P.W. 1988.  Keeping Mother Nature on Your Side.  1988 Beat The Peak Lecture Series.  JUL 1988.  Tucson Water.  4 p.

Brown, P.W. 1988. Irrigation Scheduling.  1988 Beat The Peak Lecture Series. AUG 1988. Tucson Water.  3 p.

Kopec, D.M., P.W. Brown and C.F. Mancino. 1989. Estimating Turfgrass Water Use With AZMET.  Grounds Maintenance.  APR 1989.  IR-6, IR-12.

Butler, M. and P. Brown. 1989. Chemical Freeze Protection of Citrus 1988/1989.  Yuma Co. Farm Notes.  DEC 1989.  Univ. of Arizona, Yuma, AZ.  p. 11-12.

Brown, P.W. and L. Moore. 1989. AZMET:  A New Source of Pest Management Information.  IPM Newsletter.  Winter 1989.  Arizona Commission of Agric. and Hort.  Phoenix, AZ.  2 pages.

Brown, P.W. 1989.  The Heat Is On.  Cochise Co. Fruits and Nuts.  AUG 1989.  p. 3-5.

Brown, P.W. 1989. Weather Factors Affecting Cotton Harvest. Yuma Co. Farm Notes.  AUG 1989.  p. 9-11.

Brown, P.W. 1989.  Helicopters and Frost Prevention:  A Local Look.  Cochise Co. Fruits and Nuts.  FEB 1989.  p. 1-4.

Kopec, D., P.W. Brown and C.F. Mancino.  1990. UA Weather Network Aids Turf Managers.  Western Turf Management.  Vol. 1, No. 2, NOV-DEC 1990.  p. 3,21.

Butler, M. and P. Brown.  1990. Chemical Freeze Protection of Citrus 1989/1990.  Yuma County Farm Notes.  NOV 1990.  University of Arizona, Yuma, AZ.  p. 7-8.

Silvertooth, J.C. and P.W. Brown. 1990. Heat Units in Cotton Production. Arizona Farmer Stockman. p. 4-5.

Butler, M. and P. Brown. 1990.  Temperature Not Only Culprit in Freeze Damage To Citrus.  California Arizona Farm Press.  20 JAN 1990.  p.21,27.

Phoenix Water Conservation and Resources Division. 1990-present. Lawn Watering Guides.  Produced by AZMET for daily publication in the following newpapers: Phoenix Republic, Phoenix Gazette and East Valley Tribunes.

Silvertooth, J.C. and P.W. Brown. 1991.  Using Heat Units to Time Production.  Arizona Farmer Stockman.  Vol. 70(5).  MAY 1991.  p. 9,13.

Brown, P.W., J. Silvertooth and P. Ellsworth.  1991 to 2000.  Weekly Cotton Advisories.  Produced & distributed weekly in cooperation with local Exttension Offices from mid-February to early September for the following locations: Aguila, Marana, Pinal Co., Litchfield Park, Dateland (1991-93), Parker, Yuma Valley, Safford, Paloma, Queen Creek, Mohave Valley, Laveen, Greenlee Co., Cochise Co., Harquahala, Eloy, Coolidge, Maricopa and Buckeye.

Silvertooth, J.C., T.F. Watson, D.N. Byrne and P.W. Brown. 1992. Sweet Potato Whitefly and Arizona Cotton.  Arizona Farmer Stockman. Vol. 71(8). OCT 1992. p.20,24.

Silvertooth, J.C. and P.W. Brown. 1992.  Planting Date Management.  Arizona Farmer Stockman. Vol. 71(3). MAR 1992.  p. 5,20.

Brown, P.W. and D.M. Kopec. 1992.  How Turf ET Is Determined.  Instructional materials for workshops on 1) Evapotranspiration (ET) and Irrigation Management of Turfgrass (22 APR & 5 MAY 1992) and 2) Water Management of Winter Turfgrass (13 NOV 1992).  Tempe Field Services Facility, Tempe, AZ. 7 p.

Brown, P.W. 1992.  Basics of Evaporation and Evapotranspiration. Instructional materials for workshops: 1) Evapotranspiration (ET) and Irrigation Management of Turfgrass (22 APR & 5 MAY 1992) and 2) Water Management of Winter Turfgrass (13 NOV 1992). Tempe Field Services Facility, Tempe, AZ. 10 p.

Brown, P.W. 1992.  How to Obtain Turf ET Information in the Phoenix Area.  Instructional materials for workshops: 1) Evapotranspiration (ET) and Irrigation Management of Turfgrass (22 APR & 5 May 1992) and 2) Water Management of Winter Turfgrass (13 NOV 1992).Tempe Field Services Facility, Tempe, AZ. 8 p.

Brown, P.W. and B.T. Russell. 1992.  Learning to Use the Phoenix AZMET Node.  Instructional materials for workshops: 1) Evapotranspiration (ET) and Irrigation Management of Turfgrass (22 APR and 5 MAY 1992) and 2) Water Management of Winter Turfgrass (13 NOV 1992). Tempe Field Services Facility, Tempe, AZ. 18 p.

Watson, T.F., J.C. Silvertooth and P.W. Brown. 1993.  Host Plants Associated With Outbreaks of Sweetpotato Whitefly.  California-Arizona Cotton.  NOV/DEC 1993.  p. 16-17.

Brown, P.W. 1993. Basics of Evaporation and Evapotranspiration.  Instructional materials for workshop: Integrating Evapotranspiration (ET) Information Into Your Irrigation Management Program.  17 Jun 1993.  Cactus & Pine Golf Course Superintendents Association.  10 p.

Brown, P.W. 1993.  How To Obtain Turf ET Information in the Phoenix Area.  Instructional materials for workshop: Integrating Evapotranspiration (ET) Information Into Your Irrigation Management Program.  17 Jun 1993.  Cactus & Pine Golf Course Superintendents Association.  8 p.

Brown, P.W. and D.M. Kopec. 1993. How Turf ET is Determined.  Instructional material for workshop: Integrating Evapotranspiration (ET) Information Into Your Irrigation Management Program.  17 Jun 1993.  Cactus & Pine Golf Course Superintendents Association.  7 p.

Brown, P.W. and B.T. Russell. 1993. Learning To Use the Phoenix AZMET Node.  Instructional material for workshop: Integrating Evapotranspiration (ET) Information Into Your Irrigation Management Program.  17 Jun 1993.  Cactus & Pine Golf Course Superintendents Association.  18 p.
Brown, P.W. 1993. User's Guide to the Arizona Meteorological Network Phoenix Area Node.  Arizona Municipal Water Users Association Publication.  21 p.

Silvertooth, J.C. and P.W. Brown. 1994. Managing for an Optimum Planting Date.  Arizona Farmer Stockman, MAR 1994. Vol. 73 (3):11.

Silvertooth, J.C. and P.W. Brown. 1994. Fruit Retention Patterns in 1994.  Arizona Farmer Stockman, OCT 1994.  Vol. 73(10):12.

Brown, P.W. 1995. Irrigation Scheduling Using Weather Stations: Increasing the Learning Curve.  Irr. Journal.  45(1): 10-12.

Brown, P.W. 1996.  Irrigation Scheduling Using Weather Stations:Increasing the Learning Curve.  Irr. Journal 45(1): 10-12.

Brown, P.W. 1996.  Weather Stations and ET: Something to Phone Home About.  Landscape & Irrigation. 20(10): 66-71.

Brown, P.W. and B.  Russell. 1996-present. Lawn Watering Guides.  Published Daily Online: http://ag.arizona.edu.

Brown, P.W. and B.  Russell. 1996-present.  Phoenix Area Turf Water Use Report.  Published Daily Online: http://ag.arizona.edu.

Silvertooth, J.C. and P.W. Brown 1997.  Planting Date Management.  Cotton Advisory Insert. March 1997. 2 p.

Silvertooth, J.C., P.W. Brown, S.H. Husman and E. Martin.  1997.  Timing the First Post-Plant Irrigation.  Cotton Advisory Insert. May 1997. 2 p.

Brown, P. and J. Silvertooth.  Boll Maturity & Boll Opening Dates for Late Season Flowers.  1997.  Cotton Advisory Insert. Aug. 1997.  2 p.

Brown, P. and B. Russell.  1998.  Internet Access of AZMET.  AZMET Pub. AZHO98B.  12p. 

Silvertooth, J.C. and P.W. Brown. 1998. Planting Date Management. Cotton Advisory Supplement. Feb.  2p.

Brown, P.W. 1998. A Good Planting Forecast.  (6 County Specific Editions).  Cotton Advisory Supplement.  Mar. 1p.

Brown, P.W. 1998. Weather Update (6 County Specific Editions). Cotton Advisory Supplement. May. 2p.

Brown, P.W. 1998. Monsoon Update.  Cotton Advisory Supplement. July. 1p.

Brown, P.W. 1998 Weather Update (6 County Specific Editions). Cotton Advisory Supplement. Aug. 2p.

Brown, P. and J. Silvertooth. 1998. Boll Maturity & Boll Opening Dates for Late Season Flowers. Cotton Advisory Supplement. Aug. 2p.

Brown, P.W. 1998.  AZMET Computation of Reference Crop Evapotranspiration. [on line publication] http:/ag.arizona.edu/azmet/et2.htm.  College of Agriculture, University of Arizona, Tucson, AZ. 4p.

Brown, P., B. Russell, J. Silvertooth, P. Ellsworth, M. Olsen, T. Knowles, S. Husman, R. Walser, L. Clark, D. Dunn and M. Schneider.  1999.  The 1999 Arizona Cotton Advisory Program.  Cotton:  A College of Agriculture Report.  AZ1123. College of Agriculture, Univ. of Arizona, Tucson, AZ. p. 5-12.

Brown, P. and B. Russell.  1999.  How To Obtain Cotton Advisories From the Internet. Cotton:  A College of Agriculture Report.  AZ1123.  College of Agriculture, Univ. of Arizona, Tucson, AZ.   p. 20-33.

Brown, P. and B. Russell.  1999.  Internet Access of AZMET.  AZMET Pub. 9901.  12p. 

Brown, P.W. 1999.  Guidelines for Siting AZMET Weather Stations.  AZMET Pub. 9902.  2 p.

Brown, P.W. 1999.  Winter Precipitation Update.  AZMET Pub. 9903. 4 p.

Brown, P.W. 1999.  Confused About Weather Station ET? Perhaps You Should Be.  USGA Green Section Record.  37(1): 5-7.

Brown, P.W. 1999. A Good Planting Forecast.  (Editions for  Graham, Yuma, LaPaz/Mohave, Yuma, Pima  and Maricopa Counties).  Cotton Advisory Supplement.  Mar. 1p.

Brown, P.W. 1999. Spring Weather Update (Editions for Parker, Safford, Yuma Co., Pima Co. and Maricopa Co). Cotton Advisory Supplement. May. 2p.

Brown, P.W. 1999. July Weather Summary (Editions for Graham, Yuma LaPaz/Mohave, Yuma, Pima  and Maricopa Counties).  Cotton Advisory Supplement. July. 2p.

Brown, P. and J. Silvertooth. 1999. Boll Maturity & Boll Opening Dates for Late Season Flowers. Cotton Advisory Supplement. Aug. 2p.

Silvertooth, J.C. and P.W. Brown. 1999. Planting Date Management. Cotton Advisory Supplement. Feb.  2p.

Silvertooth, J.C., P.W. Brown, S.H. Husman and E. Martin. 1999. Timing the First Post Plant Irrigation. Cotton Advisory Supplement. Feb.  2p.

Brown, P.W.  2000.  Cotton Heat Stress Updates.  Weekly Internet Publication from 8 July through 13 Aug. 2000 for Paloma, Harquahala, Queen Creek, Laveen, Buckeye, Parker, Mohave Valley, Pinal County and Yuma County: http://ag.arizona.edu/azmet.

Brown, P.W. and B.  Russell.  2001-Present.  Cotton Planting Date Advisories.  Produced Weekly From 1 March through 1 May for the following locations: Aguila, Marana, Pinal Co., Parker, Yuma Valley, Safford, Paloma, Queen Creek, Mohave Valley, Greenlee Co., Cochise Co., Harquahala, Eloy, Coolidge, Maricopa and Buckeye.  Internet Publication: http://ag.arizona.edu.

Brown, P.W. and B.  Russell.  2001-Present.  Cotton Development Advisories.  Produced Weekly From 1 May through 31 August for the following locations: Aguila, Marana, Pinal Co., Parker, Yuma Valley, Safford, Paloma, Queen Creek, Mohave Valley, Greenlee Co., Cochise Co., Harquahala, Eloy, Coolidge, Maricopa and Buckeye.  Internet Publication: http://ag.arizona.edu.

Brown, P.W. and B.  Russell.  2002-Present.  Statewide Heat Stress Report.  Produced Daily From 1 May through 30 September for the following locations: Aguila, Marana, Pinal Co., Parker, Yuma Valley, Safford, Paloma, Queen Creek, Mohave Valley, Cochise Co., Harquahala, Eloy, Coolidge, Maricopa and Buckeye.  Internet Publication: http://ag.arizona.edu.

Brown, P.W. and B.  Russell.  2002-Present.  Colorado River Heat Stress Report.  Produced Daily From 1 May through 30 September for the following locations: Aguila, Marana, Pinal Co., Parker, Yuma Valley, Safford, Paloma, Queen Creek, Mohave Valley, Cochise Co., Harquahala, Eloy, Coolidge, Maricopa and Buckeye.  Internet Publication: http://ag.arizona.edu.

Brown, P.W.  and B. Russell. 2004.  Northern Arizona Lawn Watering Guide.  Published Daily Online: http://ag.arizona.edu/azmet.

Brown, P.W.  and B. Russell. 2004.  Northern Arizona Turf Water Use Report.  Published Daily Online: http://ag.arizona.edu/azmet.

Brown, P.W. 2004.  Southeast Arizona Corn Report.  Published Weekly from 1 April - 31 August.  Internet Publication: http:ag.arizona.edu/azmet.  3p.

Brown, P.W..  2004.  Estimating Crop Water.  Fertizona Growers Mtg.  4p.

Brown, P.W. 2004.  Water Research Yields Critical Insights.  Arizona: The State of Golf.  Summer 2004.  AZ Golf Assn., Phoenix, AZ.  p.8.

Brown, P.W., B.T. Russell, A.  Roanhorse and P.  Waller.  2004.  Turf Water Use Information for Northern Arizona.  Internet Publication: http://ag.arizona.edu/azmet.  2p.

Brown, P.W. 2005.  Southeast Arizona Corn Report.  Published Weekly from 1 April - 31 August.  Internet Publication: http:ag.arizona.edu/azmet.  3p.

Brown, P.W. 2006-Present.  Southeast Arizona Crop Water Use Report.  Published Weekly from 1 April - 30 September.  Internet Publication: http:ag.arizona.edu/azmet.  4p.

Kopec, D.M., S. Nolan, P.W. Brown and M. Peserakli. 2006. Water and Turfgrass in the Arid Southwest.  USGA Green Section Record. 44(6):12-14.

Brown, P.W. 2007. Irrigation Scheduling of Turfgrass.  2007 Desert Turf School.  University of Arizona, Tucson, AZ

Brown, P.W. 2007. Landscape Water Use Estimates for Payson, Arizona.  Class Handout for AGR 230 Gardening & Landscape. Gila Community College, Payson, AZ.

Brown, P.W. 2007. Monthly Adjustment Factors for Irrigation Controllers in Payson, Arizona.  Class Handout for AGR 230 Gardening & Landscape. Gila Community College, Payson, AZ.

Brown, P.W. 2007. Payson Landscape Irrigation Guide.  Class Handout for AGR 230 Gardening & Landscape. Gila Community College, Payson, AZ.

CONFERENCE PROCEEDINGS                                                                                                    .

Christy, A.L., D.R. Williamson, P.W. Brown and R.S. Pirog. 1984. Approaches to Yield Enhancement -- Environmental Factors.  Proceedings 11th Annual Meeting Plant Growth Regulator Society of America.  29 Jul - 1 Aug 1984, Boston, MA.  Plant Growth Regulator Society of America, Lake Alfred, FL.  p. 250-254.

Brown, P.W. 1986.  AZMET:  Weather Information for Arizona Agriculture.  Proceedings of The Computer:  A Farm Ranch Machine.  10-11 Aug 1986, Pinal County Cooperative Extension & Central Arizona College, Coolidge, AZ.  2 p.

Brown, P.W. 1986.  Soil Moisture And Water Management.  Proceedings of 1986 Turfgrass and Landscape Conference.  8 May 1986, Arizona Cooperative Extension, Tucson, AZ.  p. 1-3.

Kopec, D.M., D.C. Slack, A.D. Matthias, P.W. Brown, C.F. Mancino and H.J. Farahani. 1987.  CWSI Models for Bermudagrass Turf.  In: University Water Research in Arizona:  What Have We Learned?  Where are We Going?  Proceedings of 2nd Annual Water Resources Research Conference. 23 Oct 1987, Casa Grande, AZ.  Arizona Water Resources Center & University of Arizona, Tucson, AZ. 2 p.

Brown, P.W. 1987. Using a Computer Bulletin Board as an Agricultural Weather Information System.  Preprint Volume of 18th Conference on Agricultural & Forest Meteorology & 8th Conference on Biometeorology and Aerobiology, 14-18 Sep 1987, West Lafayette, IN.  American Meteorological Society, Boston, MA.  p. 67-69.

Brown, P.W. 1987.  Agricultural Weather Information.  Proceeding of 3rd Annual Farm Ranch Computer Workshops, 13-14 Aug 1987,  Pinal County Cooperative Extension & Central Arizona College, Coolidge, AZ.  p. 11-12.

Brown, P.W. 1987.  Summary of Ground-Based Environmental Data:  MAC II ET Experiment.  Chpt. 13.  In: R. Reginato (ed.)  The MAC II Experiment.  USDA Water Conservation Laboratory, Phoenix, AZ.

Brown, P.W. and M. Yitayew.  1988. Near-Real Time Weather Information For Irrigation Management In Arizona.  In: Planning Now for Irrigation and Drainage in the 21st Century.  Proceedings of Conference on Irrigation & Drainage Division. 18-21 Jul 1988, Lincoln, NE. ASCE, Irrigation & Drainage Division, New York, NY.  p. 708-715.

Garrot, D.J., C.F. Mancino, R.A. Trapp, D.D. Fangmeier, S.H. Husman and P.W. Brown.  1988. Turfgrass Irrigation And Control Using Infrared Thermometers.   Proceeding of Northern California Xeriscape Conference, 8-10 Nov 1988, San Francisco, CA.  8 p.

Brown, P.W. 1989.  Ground-Based Environmental Data:  MAC III ET Experiment.  Chpt. 3.  In: R. Reginato (ed.)  The MAC III Experiment.  USDA Water Conservation Laboratory, Phoenix, AZ.

Brown, P.W.  1990. Reference Crop Evapotranspiration.  Proceedings of Turfgrass Water Conservation in the Arid Southwest, 10-11 Nov 1988, Las Vegas, NV.  University of Nevada, Reno, NV.  p. 32-35.

Slack, D.C., D.M. Kopec, P.W. Brown, A.D. Matthias and H.R. Jalahi-Farahani. 1990.  Evaluation and Comparison of Crop Water Stress Index Models for Irrigation Scheduling of Bermudagrass Turf.  In: Visions of the Future.  Proceedings 3rd National Irrigation Symposium.  28 Oct - 1 Nov 1990, Phoenix, AZ. Irrigation Association, ASAE, p. 725-730.

Kopec, D.M., P.W. Brown, C.F. Mancino, and D.C. Slack.  1990. Developing Crop Coefficient for Desert Turfgrass:  Calibrating Reference ET with Turf Water Use.  In: Visions of the Future.  Proceedings 3rd National Irrigation Symposium.  28 Oct - 1 Nov 1990, Phoenix, AZ.  Irrigation Association, ASAE, p. 181-185.
Brown, P.W. and S.J. Owen-Joyce. 1991. Remote Sensing and Evapotranspiration Estimates:  Influence Of Ground-Based Meteorological Data.  Proceedings of US-People's Republic of China Bilateral Symposium on Droughts and Arid-Region Hydrology.  16-20 Sep 1991, Tucson, AZ.  USGS Open-File Rpt.  91-244.  p. 161-166.

Brown, P.W., T.F. Watson and J.C. Silvertooth.  1993. Weather Conditions Associated with Outbreaks Of Severe Whitefly Infestations in Arizona.  Proceedings of 1993 Beltwide Cotton Conference.  10-14 Jan 1993, New Orleans, LA. National Cotton Council, Memphis, TN.  p. 702-705.

Watson, T.F., J.C. Silvertooth and P.W. Brown. 1993.  Host Plants Associated With Outbreaks Of Sweet Potato Whitefly As It Relates To Population Management In Cotton.   Proceedings of 1993 Beltwide Cotton Conference. 10-14 Jan 1993, New Orleans, LA.  National Cotton Council, Memphis, TN.  p. 671-672.

Silvertooth, J.C., P.W. Brown and J.E. Malcuit. 1993.  The Development And Delivery Of A Crop Monitoring Program For Upland And Pima Cotton In Arizona.  Proceedings of 1993 Beltwide Cotton Conference. 10-14 Jan 1993, New Orleans, LA.  National Cotton Council, Memphis, TN.  p. 1197-1200.

Brown, P.W. and T.W. Ley. 1993.  Siting Agricultural Weather Stations.  In: Management of Irrigation and Drainage Systems: Integrated Perspectives.  Proceedings of 1993 National Conference on Irrigation & Drainage. 21-23 Jul 1993, Park City, UT. ASCE, p. 985-992.

Wade, J.C., P. Brown and J.C. Silvertooth. 1994. Integrating Electronic, Telecommunication and Computer Technology in Agricultural Extension.  Proceedings of 5th International Congress Computer Technology In Agriculture, 29 Jun - 5 Jul 1994, Cambridge,  England. p. 128-132.

Brown, P.W., B.T. Russell, J.C. Silvertooth and P.C. Ellsworth. 1995.  The Arizona Cotton Advisory Program.  Proceedings of 1995 Beltwide Cotton Conferences, 4-7 Jan 1995, San Antonio, TX.  National Cotton Council, Memphis, TN. Vol. 2: 1099-1101.

Brown, P.W. and J.C. Silvertooth. 1995. Optimizing Production Strategies for the Low Desert.  Proceedings of 1995 Beltwide Cotton Conferences, 4-7 Jan 1995, San Antonio, TX.  National Cotton Council, Memphis, TN.  Vol. 1: 59-62

Husman, S., R. Wegener, P. Brown, E.Martin, K. Johnson and L. Schnakenberg.  1995. Upland Cotton Water Stress Sensitivity by Maturity Class and Suggested Management Strategy.  Proceedings of 1995 Beltwide Cotton Conferences, 4-7 Jan 1995, San Antonio, TX. National Cotton Council, Memphis, TN.  Vol. 2: 1335-1338.

Mohseni-Saravi, M., L.W. Gay and P.W. Brown.  1996.  Application of Penman’s model in an Arid Environment.  Proceedings of International Evapotranspiration and Irrigation Scheduling Conference.  San Antonio, TX, 3-6 Nov. 1996.

Konrad, S.L., L.W. Gay and P.W. Brown.  1998.  Temporal and Spatial Variability of Evapotranspiration from Irrigated Alfalfa in the Desert Lowlands of Arizona.  Proceedings of 78th Ann.  Mtg. American Meteorology Society.  11-16 Jan. 1998. Phoenix, AZ.

Allen, R.G., I.A. Walter, R. Elliot, B. Mecham, M.E. Jensen, D. Intefisu, T.A. Howell, R. Snyder, P. Brown, S. Echings, T. Spofford, M. Hattendorf, R.H. Cuenca, J.L. Wright and D. Martin.  2000.  ASCE Standardized Reference Evapotranspiration Equation(s).  Proceedings of 4th Decennial National Irrigation Symposium.  14-16 Nov. 2000.  Phoenix, AZ.  Irrigation Association, Falls Church, VA. p. 209-215.

Allen, R.G., I.A. Walter, R. Elliot, B. Mecham, M.E. Jensen, D. Intefisu, T.A. Howell, R. Snyder, P. Brown, S. Echings, T. Spofford, M. Hattendorf, R.H. Cuenca, J.L. Wright and D. Martin.  2000.  Issues, Requirements and Challenges in Selecting and Specifying a Standardized ET Equation.  Proceedings of 4th Decennial National Irrigation Symposium.  14-16 Nov. 2000.  Phoenix, AZ.  Irrigation Association,  Falls Church, VA. p. 201-208.

Brown, P.W. and K.G. Hubbard. 2001.  Lessons from the North American Experience with Automated Weather Stations. Proceedings of Workshop on Automated Weather Stations for Applications in Agriculture and Water Resources Management: Current Use and Future Perspectives.  6-10 March 2000.  Lincoln, NE.  World Meteorological Organization, Zurich, Switzerland.  p. 21-28.

Brown, P.W., T. Machibya  and B.T. Russell. 2001.  Use of Cell Phones for Data Retrieval in Arizona.  Proceedings of Workshop on Automated Weather Stations for Applications in Agriculture and Water Resources Management: Current Use and Future Perspectives.  6-10 March 2000.  Lincoln, NE.  World Meteorological Organization, Zurich, Switzerland.  p. 49-54.

Brown, P.W. 2004.  Turf Water Requirements: Research Review & Assessment of Future Needs.  Proceedings of 2004 USGA Regional Conference.  24 Mar 2004.  Phoenix, AZ.  USGA, Far Hills, NJ. 5p.

Brown, P.W. 2005. Impact of Global Climate Change on the Western Pecan Industry.  Proceedings of 39th Annual Western Pecan Conference.  6-8 March 2005.  Las Cruces, NM.  p.  15-22.

Brown, P.W. 2005.  Evapotranspiration of Turfgrass Located Adjacent to a Fallow Desert Soil: A Quantitative Assessment of the Edge Effect.  In: Impact of Global Change.  Proceedings of 2005 World Water & Environment Conference.  15-19 May 2005.  Anchorage, AK.  10 p.

Brown, P.W. 2006.  Use of the ASCE Standardized Reference ET Equation by Agricultural Weather Networks in the Western U.S.: Current Status and Future Challenges.  In: Examining the Confluence of Environmental and Water Concerns.  Proceedings of the 2006 World Water & Environmental Conference.  21-25 May 2006.  Omaha, NE.  ASCE, Reston, VA.  10 p.

Brown, P.W. and J.Silvertooth. 2006. Boll Maturity & Boll Opening Dates for Late Season Flowers.  Electronic publication available at http:/ag.arizona.edu/azmet/Boll_Maturity_2006.pdf.

Brown, P.W. 2007. Salinity and Deficit Irrigation: What is the Relationship?  Proceedings of 2007 Karsten Turf Field Day.  Univ. of Arizona, Tucson, AZ.

Brown, P. 2007. The El Nino Winter of 2006/07??  Proceedings of 41st Annual Conference of Western Pecan Growers Assn. 4-6 March 2007. Las Cruces, NM. p.18.

Brown, P.W. 2008. Mapping Salinity in Golf Course Soils Using Electromagnetic Induction.  Proceedings of 2008 Karsten Turf Field Day.  15 May 2008. Univ. of Arizona, Tucson, AZ.