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Cloud Flags of MOD21 (TES) Products

Posted: Sun Jul 16, 2023 10:35 pm America/New_York
by ogsahin
I have been trying to use TES-based LST products by using APPEARS software. Even though I followed quality standards defined in the user handbook, there are LST values that are unreasonable above physical limits, like more than 100 °C in Aqua night products. The exact pixel has a much more reasonable value, like 31 °C for the VIIRS product. I noticed Night products of Terra and Aqua (TES MOD21) don't have any cloud-free flags (Only "thin cirrus" and "Pixel within 2 pixels of nearest cloud"). It is unreasonable for me that there is no "cloud-free" pixel for three years.

Re: Cloud Flags of MOD21 (TES) Products

Posted: Wed Jul 19, 2023 9:27 am America/New_York
by LP DAAC - dgolon
Hi @ogsahin Thanks for posting, we'll take a look at this. Could you please let us know your area of interest and the dates of the data or email us at and let us know your AppEEARS/URS Username and your AppEEARS Request ID. We'd like to take a closer look at the specific granules from your order. Thanks - Danielle