Current Research Projects

Development of tables and computer programs for timing and management of urban landscape irrigation systems.

Collaborators: Jim Austin and Jim Reyneart (CCIT). Graduate student: Z. Yuan.

IV-7

In-situ soil sensor. This disposable soil moisture sensor is energized and monitored by an instrument that can be up to several feet from the sensor.

Collaborators: Slater, J. (DOE) and A. Witulski (ECE department).

Assessment of water and nitrogen stress in agriculture with remote sensing, in-situ sensors, and crop models. This research utilizes the ground-based remote sensing system.

Collaborators: C. Y. Choi, R. Lascano (Texas A and M), E. Barnes (ARS), T. Clarke (ARS), J. Haberland, M. Kostrewski, P. Colaizzi, M. Baker (ARS), M. Riley, L. Canaves, S. Moran, J. Slater, E. Rodriguez, H. Li, S. Richards, T. Thompson, E. Riley, D. Larson, D. Farley.

IV-8

Free surface streamtube model of water movement to subsurface drains. Model handles variable soil conductivity, drainage geometry, drainage tube entrance coefficient, and models the three dimensional time of transport to the drain. Finite element method used to calibrate frozen streamtube solution. Computer model written in Visual C++.

Graduate Student: A. Chavez.

Research and education program in landscape irrigation. Collaborators: Mark Dimmitt and Nancy Laney (Desert Museum), Margarett Livingston and Jim ____ (U of A)