MODAPS PCR 08-005

PCR Number 08-005
Date 2008-07-14
Initiator Zhengming Wan
Abstract Fix occasional small areas of unusually high LST.
Problem Statement Occurrence of occasional small areas of unusually high surface temperatures in MOD11 products.
Description of Change This problem is caused by the procedure for empirical optical-leak correction for Terra MODIS band 32 and the problem was traced to L2 granules, where there are valid LSTs only at the end of the scan lines. Minor refinements made to mod11_lst2A1.c to fix the problem.
Products Affected M[O|Y]D11_L2, M[O|Y]D11A1, M[O|Y]D11B1
Software Affected PGE16
Processing String to Receive the Change Terra Forward, Terra Reprocessing, Aqua Forward, Aqua Reprocessing
Downstream Product Effects M[O|Y]D11C1, M[O|Y]D11C2, M[O|Y]D11C3
Data Granules to be Used for Science Testing One day global test using Terra MODIS data for day 2008-062.
Justification On rare occasions there could be patches of high LST which are incorrect.
Effective Date for Implementation of Change  
Status Science test completed; results evaluated by LDOPE and SCF. Sadashiva Devadiga approved for Land, Vincent Salomonsom approved on 07/21/08.