Study of Crop Growth Stages, Vigour, Equity and Estimation of the Peak Crop Water Requirement using Sattelite Data: A Case Study of Dharoi Irrigation Scheme, Gujarat, India
Author(s):
Dr. Samta P. Shah , Department of Civil Engineering, Sardar Vallabhbhai Patel Institute of Technology,Vasad, Gujarat,INDIA
Keywords:
Crop coefficients (Kc), Crop evapotranspiration (ETc), Normalized difference vegetation index (NDVI), Soil Adjusted Vegetation Index (SAVI)
Abstract:
Satellite-based remote sensing (RS) data, and weather data for Rabi season are used for estimating seasonal peak crop evapotranspiration, (ETc) and crop water requirement in Sabarmati Right Bank Main Canal (SRBMC), command of North Gujarat, India One scene for each month of IRS P6 Awifs sensor of 1:56 Km resolution was used to study the crop growth stages and evaluate the period of full canopy ie. Flowering stage. The IRS P6 Liss-III sensor linear self-scanning and 1:23 km resolution scene, for February month, modeled the NDVI and SAVI maps for the cropped area of the region. The generated NDVI map is used for developing spatial crop coefficient map (Kc) map and crop acreage estimation. Kc (crop coefficient) map for cropped area is combined using ERDAS imagine software, with single average point value of (reference crop evapotranspiration), ETo to evaluate spatial ETc map. Estimation of crop water requirement during entire growing phase is done, using the ETo (reference crop evapotranspiration the month of February 2008.The ETo (reference crop evapotranspiration) is evaluated using modified Pennman Monteith method of FAO24.The local weather data for Mehasana district for the month of February, 2008 were acquired from www.impune.com,were feeded to FAO CROPWAT 8.0 software, ETo calculator.
Other Details:
| Manuscript Id | : | IJSTEV4I1023
|
| Published in | : | Volume : 4, Issue : 1
|
| Publication Date | : | 01/08/2017
|
| Page(s) | : | 72-77
|
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