volume 21 issue 4 (december 2001) : 223 - 225
NET SOLAR RADIATION EVALUATION FROM REMOTELY SENSED MULTISPECTRAL DATA OVER WHEAT CROP
1Department of Agricultural Meteorology,
CCS Haryapa Agricultural University, Hisar-125 004 (Haryana), India
ABSTRACT
A study was conducted during rabi season 1997–98. The incoming, reflected and net solar radiations were measured at various phenological stages in wheat crop (R SN). The net solar radiations over wheat crop ranged between 531–811 w/m 2, while remotely sensed net solar radiations (R SN) varied from 831 to 1281 w/m 2/sr. A regression equation was developed between solar radiation measured and estimated by remote sensing which is" of the form:
R SN = 135.15 + 0.505 R' SN, R 2 = 0.86
This regression equation can be used to convert remotely sensed solar radiation into actual net solar radiation.
R SN = 135.15 + 0.505 R' SN, R 2 = 0.86
This regression equation can be used to convert remotely sensed solar radiation into actual net solar radiation.
KEYWORDS
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This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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