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Status of the Geostationary Spectrograph (GeoSpec) for Earth and Atmospheric Science ApplicationsGeoSpec will support future satellite mission concepts in the Atmospheric Sciences and in Land and Ocean Sciences by providing time-resolved measurements of both chemically linked atmospheric trace gas concentrations of important molecules such as O3, NO2, CH2O and SO2 and at the same time coastal and ocean pollution events, tidal effects, and the origin and evolution of aerosol plumes. The instrument design concept in development is a dual spectrograph covering the WMS wavelength region of 310-500 nm and the VIS/NIR wavelength region of 480-900 nm coupled to all reflective telescope and high sensitivity PIN/CMOS area detector. The goal of the project is to demonstrate a system capable of making moderate spatial resolution (750 meters at nadir) hyperspectral measurements (0.6 to 1.2 nm resolution) from a geostationary orbit. This would enable studies of time-varying pollution and coastal change processes with a temporal resolution of 5 minutes on a regional scale to 1 hour on a continental scale. Other spatial resolutions can be supported by varying the focal length of the input telescope. Scientific rationale and instrument design and status will be presented.
Document ID
20040171564
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Janz, Scott
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Hilsenrath, Ernest
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Mount, G.
(Washington State Univ. WA, United States)
Brune, W.
(Pennsylvania State Univ. PA, United States)
Heath, D.
(Research Support Instruments, Inc. Boulder, CO, United States)
Date Acquired
August 22, 2013
Publication Date
January 1, 2004
Subject Category
Earth Resources And Remote Sensing
Meeting Information
Meeting: 35th COSPAR Scientific Assembly
Location: Paris
Country: France
Start Date: July 18, 2004
End Date: July 25, 2004
Sponsors: Committee on Space Research
Distribution Limits
Public
Copyright
Other

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