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Georgia Water Resources Conference

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Author: Hoogenboom, Gerrit × End date: 2003 × Start date: 2003 ×

Publication Search Results

Now showing 1 - 5 of 5
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    Water Use Estimation for Some Major Crops in Georgia Using Geospatial Modeling
    (Georgia Institute of Technology, 2003-04) Boken, Vijendra K. ; Hoogenboom, Gerrit ; Guerra, Larry C. ; Hook, James E. ; Thomas, Daniel L. ; Harrison, Kerry A.
    Agricultural water use estimation can contribute to finding a satisfactory solution of the water dispute among the states of Alabama, Florida, and Georgia. In this paper, the depths of irrigation for cotton, peanut, corn, and soybean are estimated for the Flint, Central, and Coastal water zones of Georgia for 2000, 2001, and 2002. In addition, the volume of irrigation for these crops are estimated for 2000 and 2001. The estimation was based on the spatial interpolation of the data collected under the Agricultural Water Pumping project. The interpolation techniques included the inverse distance weighting, local polynomial, global polynomial, radial basis function, ordinary kriging, and universal kriging. The total volume of irrigation was highest for the Flint zone (578.4 Mm3 ), followed by the Central zone (296.3 Mm3 ) and the Coastal zone (103.0 Mm3 ) for 2000. For 2001, the irrigation volume declined by 41% for the Flint zone, 31% for the Central zone, and 20% for the Coastal zone.
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    Agricultural Water Use in Georgia: Results from the Ag. Water Pumping Program
    (Georgia Institute of Technology, 2003-04) Thomas, Daniel L. ; Harrison, Kerry A. ; Hook, James E. ; Hoogenboom, Gerrit ; McClendon, R. W. ; Wheeler, L.
    This paper presents the results for the period 1999 to 2002 from the monitoring program that is estimating agricultural water use across the entire state of Georgia. This program is called AG. WATER PUMPING (Agricultural Water: Potential Use and Management Program in Georgia). Current conflicts on water allocation in the ACT (Alabama, Coosa, and Tallapoosa) and ACF (Apalachicola, Flint, and Chattahoochee) river basins, saltwater intrusion effects in the 24 county area of southeast Georgia, water level declines in the central region, and other potential impacts on water use are all limited by the lack of available information on agricultural water use. This 5-year project is nearing completion. The results for calendar years 2001 and 2002 are based on the complete monitoring site installation whereas previous years were during the installation (incomplete coverage in selected parts of the state).
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    Estimating Statewide Irrigation Requirements Using a Crop Simulation Model
    (Georgia Institute of Technology, 2003-04) Guerra, Larry C. ; Hoogenboom, Gerrit ; Boken, Vijendra K. ; Thomas, Daniel L. ; Hook, James E. ; Harrison, Kerry A.
    An understanding of water needs in agriculture is a critical input in resolving the water resource issues that confront the state of Georgia. Unfortunately, how much water is required and how much water is actually being used for irrigation is unknown. The objective of this study was to estimate water demand for irrigation for the entire state of Georgia using a crop simulation model. The irrigation requirements for all the counties where irrigated cotton, corn, peanut and soybean were grown in 2000, 2001 and 2002 were estimated using the Environmental Policy Integrated Climate (EPIC) model. These counties were distributed across seven regions; with three regions, i.e., Flint Basin, Central Coastal Plain and Coastal Zone, representing the major growing areas. The combined irrigation withdrawal in the Flint Basin, Central Coastal Plain and Coastal Zone accounted for about 98% and 99% of the statewide total irrigation withdrawal in 2000 and 2001, respectively, mainly due to large irrigated acreage in those regions. Statewide total irrigation withdrawal was estimated to be 199,125 Mgallons in 2000 and 114,101 Mgallons in 2001. These irrigation requirements will vary from year to year depending on the spatial and temporal distribution of rainfall during the growing season. Total irrigated acreage also had a major impact on irrigation withdrawal. We will implement the model for other crops to determine the total irrigation withdrawals for agriculture in the state of Georgia.
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    Agricultural Water Use Associated with Animal Production Systems in Georgia
    (Georgia Institute of Technology, 2003-04) Newton, G. Larry ; Baker, J. F. ; Dove, C. R. ; Bernard, J. K. ; McCranie, M. D. ; Boken, Vijendra K. ; Thomas, Daniel L. ; Hoogenboom, Gerrit
    Agricultural waters use normally centers on the large cross-section of irrigation withdrawals by cropping systems. However, animal production systems are also a significant component of water use in the state of Georgia. These production systems are therefore directly affected by the continuing drought and limited availability of water. Many animal production facilities, such as dairies, poultry houses, processing plants, and related operations use water continuously throughout the year. Some of these facilities could be prime candidates for improvements in water use efficiency and water conservation. The main emphasis of this paper will be to present an overview of water use associated with animal production systems in the state of Georgia.
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    The Georgia Automated Environmental Monitoring Network: Ten Years of Weather Information for Water Resources Management
    (Georgia Institute of Technology, 2003-04) Hoogenboom, Gerrit ; Coker, D. D.
    With the continuing drought that started in 1998, access to accurate rainfall information for remote locations in Georgia remains very important. One of the main goals of the Automated Environmental Monitoring Network (AMEN) is the collection of weather data across the state of Georgia. The AEMN was established in 1991 with the installation of four automated weather stations in Griffin, Tifton, Watkinsville and Midville. A major milestone was reached at the end of 2001 with the completion of 10 years of continuous records for these first stations. A second milestone was reached in September 2002 with the installation of the 50th weather station in Homerville in south Georgia. The weather data are disseminated in near real-time mode via the worldwide web (www.Georgiaweather.net). The main goal of this paper is to present an overview of the network and examples of the application of this information for water resources management.