Your search found 8 records
1 Gaur, Anju; Horton, R.; Jaynes, D. B.; Baker, J. L. 2006. Measured and predicted solute transport in a tile drained field. Soil Science Society of America Journal, 70:872-881.
Sprinkler irrigation ; Leaching ; Drainage ; Measurement ; Water pollution ; Risks ; Models / USA / Iowa
(Location: IWMI-HQ Call no: IWMI 631.7.1 G430 GAU Record No: H039231)
2 Al-Jabri, S. A.; Lee, J.; Gaur, Anju; Horton, R.; Jaynes, D. B. 2006. A dripper-TDR method for in situ determination of hydraulic conductivity and chemical transport properties of surface soils. Advances in Water Resources, 29:239-249.
(Location: IWMI-HQ Call no: P 7609 Record No: H039232)
3 Biggs, Trent; Gaur, Anju; Scott, C.; Thenkabail, Prasad; Gangadhara Rao, Parthasaradhi; Gumma, Murali Krishna; Acharya, Sreedhar; Turral, Hugh. 2007. Closing of the Krishna Basin: irrigation, streamflow depletion and macroscale hydrology. Colombo, Sri Lanka: International Water Management Institute (IWMI). 38p. (IWMI Research Report 111) [doi: https://doi.org/10.3910/2009.111]
River basins ; Physical geography ; Climate ; Stream flow ; Hydrology ; Rainfall runoff relationships ; Evapotranspiration ; Irrigation programs ; Water allocation ; Water transfer ; Environmental effects ; Water quality / India / Krishna River / Andhra Pradesh / Maharashtra / Karnataka
(Location: IWMI HQ Call no: IWMI 551.483 G635 BIG Record No: H040373)
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Discharge from the Krishna River into the ocean decreased by 75 percent from 1960-2005, and was zero during a recent multi-year drought. This paper describes the physical geography and hydrology of the Krishna Basin, including runoff production and a basic water account based on hydronomic zones. More than 50 percent of the basin's irrigated area is groundwater irrigation, which is not currently included in inter-state allocation rules. Future water allocation will require inclusion of the interactions among all irrigated areas, including those irrigated by groundwater and surface water.
4 Gaur, Anju; McCornick, Peter G.; Turral, Hugh; Acharya, Sreedhar. 2007. Implications of drought and water regulation in the Krishna Basin, India. International Journal of Water Resources Development, 23(4):583-594.
Drought ; Assessment ; River basins ; Water allocation ; Farmers ; Irrigation water ; Reservoirs ; Dams ; Drinking water ; Water rights ; Water policy / India / Krishna Basin
(Location: IWMI HQ Call no: IWMI 631.7.5 G635 GAU Record No: H040512)
5 Gaur, Anju; Biggs, Trent W.; Gumma, Murali Krishna; Gangadhara Rao, Parthasaradhi; Turral, Hugh. 2008. Water scarcity effects on equitable water distribution and land use in a major irrigation project: case study in India. Journal of Irrigation and Drainage Engineering, 134(1): 26-35.
Reservoirs ; Dams ; Canals ; Water distribution ; Irrigation programs ; Crop production ; Case studies / India / Nagarjuna Sagar / Krishna River Basin
(Location: IWMI HQ Call no: IWMI 631.7 G635 GAU Record No: H041182)
In many river basins, upstream development and interannual variations in rainfall can cause both episodic and chronic shortages in water supplies downstream. Continued rapid development of surface and groundwater throughout the Krishna Basin in southern India resulted in historically low inflows to the main canals of the Nagarjuna Sagar irrigation project _8,955 km2_ during a recent drought _2002–2004_. This paper presents an integrated approach to assess how cropping patterns and the spatial equity of canal flow changed with water supply shocks in the left canal command area _3,592 km2_ of Nagarjuna Sagar. We combined 3 years _2000– 2003_ of canal release data with census statistics and high temporal resolution _8–10 days_ moderate resolution imaging spectrometer _MODIS_ 500-m resolution satellite imagery. The impact of water scarcity on land use pattern, delineated by MODIS images with moderate spatial resolution, was comparable with the census statistics, while the MODIS data also identified areas with changes and delays in the rice crop area, which is critical in assessing the impact of canal operations. A 60% reduction in water availability during the drought resulted in 40% land being fallowed in the left-bank canal command area. The results suggest that head reach areas receiving high supply rates during a normal year experienced the highest risks of fluctuations in water supply and cropped area during a water short year compared to downstream areas, which had chronically low water supply, and better adaptive responses by farmers. Contrary to expectations, the spatial distribution of canal flows among the three major zones of the command area was more equitable during low-flow years due to decreased flow at the head reach of the canal and relatively smaller decreases in tail-end areas. The findings suggested that equitable allocations could be achieved by improving the water distribution efficiency of the canal network during normal years and by crop diversification and introduction of alternative water sources during water shortage years. The study identified areas susceptible to decreases in water supplies by using modern techniques, which can help in decision-making processes for equitable water allocation and distribution and in developing strategies to mitigate the effects of water supply shocks on cropping patterns and rural livelihoods.
6 Immerzeel, W. W.; Gaur, Anju; Zwart, S. J. 2008. Integrating remote sensing and a process-based hydrological model to evaluate water use and productivity in a south Indian catchment. Agricultural Water Management, 95(1):11-24.
Remote sensing ; Simulation models ; Hydrology ; Water balance ; Crop production ; Productivity ; Evapotranspiration / India / Upper Bhima catchment
(Location: IWMI HQ Call no: IWMI 631.7.1 G635 IMM Record No: H041183)
7 Biggs, Trent W.; Scott, Christopher A.; Gaur, Anju; Venot, Jean-Philippe; Chase, T.; Lee, E. 2008. Impacts of irrigation and anthropogenic aerosols on the water balance, heat fluxes, and surface temperature in a river basin. Water Resources Research, 44(W12415):18p.
Aerosols ; Irrigation effects ; Water balance ; River basins ; Energy balance ; Air temperature ; Irrigation requirements ; Models / India / Krishna River
(Location: IWMI HQ Call no: e-copy only Record No: H041814)
8 Gaur, Anju; McCornick, Peter G.; Turral, Hugh; Acharya, Sreedhar. 2008. The challenge of inter-state water management. id21 Natural Resources Highlights, November 2008 (7 Water): 2.
(Location: IWMI HQ Call no: e-copy only Record No: H042387)
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