Observation sensitivity tests were performed for the Air Force to assist with data and system configurations that optimize the use of new and proposed sources of data for GSI. The Air Force requested sensitivity tests for at least two data types from the following list:

GCOM-W1 AMSR2 was eliminated from the list after the DTC confirmed with Joint Center for Satellite Data Assimilation (JCSDA) and National Centers for Environmental Prediction (NCEP) Environmental Modeling Center (EMC) colleagues that this data type was not yet available for ingest into GSI and would not be ready within the period of performance. The DTC performed sensitivity studies for the remaining three data types in the list.