Remote Sensing Reflectance (Rrs) = normalized water leaving reflectance (nRhow) / PI
Normalized water leaving radiance (nLw) = Rrs* F0
Normalized water leaving reflectance (nRhow) = (PI*nLw)/Fo
Normalized water leaving radiance (nLw) = water leaving radiance (Lw)/ cos (za)
za = solar zenith angle
Fo= extraterestrial solar irradiance
Daftar Fo untuk beberapa sensor (sumber: SeaDAS ):
MODIS:
# # Wavelengths (um) # Lambda(1) = 412 Lambda(2) = 443 Lambda(3) = 469 Lambda(4) = 488 Lambda(5) = 531 Lambda(6) = 547 #Lambda(6) = 551 Lambda(7) = 555 Lambda(8) = 645 Lambda(9) = 667 Lambda(10) = 678 Lambda(11) = 748 Lambda(12) = 859 Lambda(13) = 869 Lambda(14) = 1240 Lambda(15) = 1640 Lambda(16) = 2130 # # Extraterrestrial Solar Irradiance (mW/cm^2/um/sr) # F0(1) = 172.912 F0(2) = 187.622 F0(3) = 205.878 F0(4) = 194.933 F0(5) = 185.747 F0(6) = 186.539 F0(7) = 183.869 F0(8) = 157.811 F0(9) = 152.255 F0(10) = 148.052 F0(11) = 128.065 F0(12) = 97.174 F0(13) = 95.824 F0(14) = 45.467 F0(15) = 23.977 F0(16) = 9.885 MERIS: Lambda(1) = 413 Lambda(2) = 443 Lambda(3) = 490 Lambda(4) = 510 Lambda(5) = 560 Lambda(6) = 620 Lambda(7) = 665 Lambda(8) = 681 Lambda(9) = 709 Lambda(10) = 754 Lambda(11) = 762 Lambda(12) = 779 Lambda(13) = 865 Lambda(14) = 885 Lambda(15) = 900 F0(1) = 171.366 F0(2) = 187.751 F0(3) = 192.934 F0(4) = 192.687 F0(5) = 180.049 F0(6) = 164.970 F0(7) = 153.091 F0(8) = 147.022 F0(9) = 140.546 F0(10) = 126.620 F0(11) = 124.979 F0(12) = 117.571 F0(13) = 95.888 F0(14) = 92.975 F0(15) = 89.544 SeaWIFS # Wavelengths (um) # Lambda(1) = 412 Lambda(2) = 443 Lambda(3) = 490 Lambda(4) = 510 Lambda(5) = 555 Lambda(6) = 670 Lambda(7) = 765 Lambda(8) = 865 # # Extraterrestrial Solar Irradiance (mW/cm^2/um/sr) # F0(1) = 172.998 F0(2) = 190.154 F0(3) = 196.438 F0(4) = 188.164 F0(5) = 182.997 F0(6) = 151.139 F0(7) = 122.330 F0(8) = 96.264 VIIRSN Nbands = 15 Lambda(1) = 410 Lambda(2) = 443 Lambda(3) = 486 Lambda(4) = 551 Lambda(5) = 671 Lambda(6) = 745 Lambda(7) = 862 Lambda(8) = 1238 Lambda(9) = 1601 Lambda(10) = 2257 Lambda(11) = 3700 Lambda(12) = 4050 Lambda(13) = 8550 Lambda(14) = 10763 Lambda(15) = 12013 F0(1) = 171.134 F0(2) = 190.214 F0(3) = 198.774 F0(4) = 184.122 F0(5) = 150.456 F0(6) = 127.643 F0(7) = 96.031 F0(8) = 45.606 F0(9) = 25.084 F0(10) = 7.732
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