8:30 Welcome

8:45 ­ 11:30 Kirkham Student Program
Emcee: Don Nielsen

Kirkham students will share their insights of studying and working with Don Kirkham, discussing his influence on their lives and on the profession.

Former students will speak in chronological order based on the year in which he or she obtained a graduate degree under Don Kirkham.

People have been asked to limit their remarks to five minutes. Additional speakers may be added if time permits.

Cornelius van Bavel 1949
Wilford Gardner 1952
Wes Buchele 1954
Jan van Schilfgaarde 1954
Dale Swartzendruber 1954
Jerry Radke 1962
Glen Klock 1964
Bill Powers 1966
Art Warrick 1967
Dennis Rolston
Don Gabriels 1971
Sun-Ho Yoo 1971
Rienk van der Ploeg 1972
Norris Powell 1973
Lyle Prunty 1978

11:30 - 1:00 Lunch, Campanile room

The Scientific Program

1:00 - 1:15 Introduction to the Conference: Don Nielsen

Session 1, Chair: Toby Ewing, Iowa State University

1:15 - 1:45 Rien van Genuchten, U.S. Salinity Laboratory
Characterizing and estimating the unsaturated soil hydraulic properties

1:45 - 2:15 Ignacio Rodriguez-Iturbe, Princeton University
Soil moisture dynamics: the stochastic link between climate, soil, and vegetation

2:15 - 2:45 Peggy Agouris, University of Maine and National Center for Geographic Information and Analysis
Role of digital imagery in geospatial information systems for environmental applications

2:45 - 3:00 Break

Session 2, Chair: Dani Or, Utah State University

3:00 - 3:30 Brent Clothier, HortResearch, New Zealand
The triple jump: theory, mesocosm, field

3:30 - 4:00 Pierre Goovaerts, University of Michigan
Geostatistical assessment of scale-dependent correlation between soil properties

4:00 - 4:30 Keith Loague, Stanford University
Assessment of pesticide leaching at regional scales

4:30 - 4:45 Leave for Agronomy Building

4:45 - 5:30 Reception and meeting with faculty, Agronomy Commons

5:30 - 6:30 Optional Tours of Facilities:

National Soil Tilth Laboratory
Soil Physics Past and Present
Agronomy Department Teaching Programs and Facilities

6:30 - 9:00 Dinner, 3140 Agronomy Hall
Emcee: Bob Horton
Presentations by Victoria Kirkham, Mary Beth Kirkham, and Rienk van der Ploeg

Session 3, Chair: Rien van Genuchten, U.S. Salinity Laboratory

8:00 - 8:30 Yakov Pachepsky, USDA Hydrology Laboratory
Observability and predictability of scale dependencies in soil properties

8:30 - 9:00 Dani Or, Utah State University
Pore scale models for liquid retention and hydraulic conductivity of unsaturated porous media

9:00 - 9:30 Bruce T. Milne, University of New Mexico
Self-organization of semi-arid landscapes: tests of optimality principles

9:30 - 10:00 Dennis Corwin, U. S. Salinity Laboratory
Modeling salt-loading to groundwater with GIS

10:00 - 10:15 Break

Session 4, Chair: Brent Clothier, HortResearch, New Zealand

10:15 - 10:45 Vladan Babovic, Danish Hydraulic Institute
Computer-aided knowledge discovery

10:45 - 11:15 Marc Parlange, Johns Hopkins University
Advances in computing, turbulence theory, and instrumentation leading to a new paradigm in land-atmosphere exchange

11:15 - 11:45 Ole Wendroth, ZALF(Centre for Agricultural Landscape and Land Use Research), Germany
Space-time behavior of crop biomass, soil moisture and soil nitrogen

11:45 - 1:30 Lunch, Campanile Room

Session 5, Chair: Peggy Agouris, University of Maine

1:30 - 2:00 Alex McBratney, University of Sydney, Australia
Comparative efficiency of methods for obtaining soil hydraulic parameters at various resolutions

2:00 - 2:30 Toby Ewing, Iowa State University
Scale issues in modeling contaminant diffusion and non-aqueous phase migration

2:30 - 3:00 Nicholas Lewin-Koh, National University of Singapore
Interactive assessment of multivariate spatial dependence

3:00 - 3:30 Phil Jardine, Oak Ridge National Laboratory
Exploring subsurface transport processes at multiple scales

3:30 - 3:45 Break

3:45 - 5:45 Discussion moderated by Don Nielsen

6:00 - 8:00 Dinner featuring Iowa-grown food, Campanile Room