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CERES BDS

Posted: Tue Sep 12, 2023 2:17 am America/New_York
by zhengyueyueming
For SW, what should I do if I want to convert radiance(CERES_SW_Filtered_Radiances_Upwards) to SW reflectance´╝č

Re: CERES BDS

Posted: Wed Sep 13, 2023 3:54 pm America/New_York
by ASDC - David W.
Thank you for your question.

A Subject Matter Expert has been notified and will answer your question shortly.

Thank you,

David W.
NASA Langley ASDC DAAC Lifecycle

Re: CERES BDS

Posted: Fri Sep 15, 2023 11:20 pm America/New_York
by zhengyueyueming
Thank you sir,
I calculated the reflectance based on this formula(https://seadas.gsfc.nasa.gov/help-8.2.0/rad2refl/Rad2ReflAlgorithmSpecification.html#:~:text=The%20conversion%20from%20TOA%20radiance,the%20inverse%20of%20this%20equation). There is no E in the CERE SBDS data, so I calculated E using formula E=integral(SRF*E0)/integral(SRF). Is it correct to use this formula to calculate E? Because the reflectance value I calculated does not look correct. The cloud area has a reflectance of more than 2.5, and the reflectivity of the bare soil area is also above 0.5.

Re: CERES BDS

Posted: Tue Oct 17, 2023 12:58 pm America/New_York
by ASDC - David W.
Thank you for your question.

A Subject Matter Expert has been notified and will answer your question shortly.

Thank you,

David W.
NASA Langley ASDC DAAC Lifecycle