Pre-launch Viirs, Cris, and Atms Proxy Datasets for Npp Validation

In order to facilitate preparation for the upcoming launch of the National NPOESS Preparatory Project (NPP), the NPOESS Integrated Program Office (IPO) has developed a set of software tools for the generation of proxy Sensor Data Records for the VIIRS, CrIS, and ATMS instruments. Proxy data files are produced in HDF5 and conform to the standards described in the NPOESS IDPS Data Format Control Book. The IPO is routinely producing and making available for test activities, a “live” data stream using the Government Resource for Algorithm Verification, Independent Testing, and Evaluation (GRAVITE) computing facility.