Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.

How do I convert data in the L1B2 products to top-of-atmosphere bidirectional reflectance factor (BRF)?

April 26, 2017bidirectional brf convert Data Factor l1b2 products Reflectance

0

Posted

How do I convert data in the L1B2 products to top-of-atmosphere bidirectional reflectance factor (BRF)?

1 Answer

0

Posted

Since November 2002 (product version 0016 and later), the MISR L1B2 products contain parameters within the file that make it easier to convert to BRF. The BRF conversion factor for each band is derived from the equation: (pi * SunDistanceAU2) / (std_solar_wgted_height * cos(SolarZenith)) This factor can be used to calculate the BRF: BRF = BRF conversion factor * Radiance The Radiance may be obtained from the Radiance/RDQI by right-shifting 2 bits, then multiplying the result by the Scale factor (radiometric) contained in the Radiance Grid Metadata.