P14.5 Geostationary Interferometer 24-Hour Simulated Dataset for Test Processing and Calibration

The UW-Madison CIMSS is producing simulation datasets as a part of the risk reduction effort in the NOAA GOES-R program. One of the potential baseline sounder designs for the GOES-R Hyperspectral Environmental Suite (HES) is a geostationary imaging Fourier transform spectrometer. This paper describes a simulation based on the specifications of the existing NASA GIFTS instrument, which is currently undergoing thermal vacuum testing. The initial step of the preparation uses a Weather Research and Forecasting (WRF) model simulation covering most of the North and South American continents to provide internally consistent atmospheric profiles over a potential geostationary imaging area. Next, the GIFTS forward radiative transfer model calculates the outgoing radiance spectra at the top of the atmosphere. Finally, a detailed mathematical model of the instrument is used to calculate the resulting raw signal sent down from the satellite. The intended use of this 24 hour dataset is to test science algorithms and data processing software