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the geostationary fourier transform spectrometerThe Geostationary Fourier Transform Spectrometer (GeoFTS) is an imaging spectrometer designed for a geostationary orbit (GEO) earth science mission to measure key atmospheric trace gases and process tracers related to climate change and human activity. GEO allows GeoFTS to continuously stare at a region of the earth for frequent sampling to capture the variability of biogenic fluxes and anthropogenic emissions from city to continental spatial scales and temporal scales from diurnal, synoptic, seasonal to interannual. The measurement strategy provides a process based understanding of the carbon cycle from contiguous maps of carbon dioxide (CO2), methane (CH4), carbon monoxide (CO), and chlorophyll fluorescence (CF) collected many times per day at high spatial resolution (~2.7kmx2.7km at nadir). The CO2/CH4/CO/CF measurement suite in the near infrared spectral region provides the information needed to disentangle natural and anthropogenic contributions to atmospheric carbon concentrations and to minimize uncertainties in the flow of carbon between the atmosphere and surface. The half meter cube size GeoFTS instrument is based on a Michelson interferometer design that uses all high TRL components in a modular configuration to reduce complexity and cost. It is self-contained and as independent of the spacecraft as possible with simple spacecraft interfaces, making it ideal to be a "hosted" payload on a commercial communications satellite mission. The hosted payload approach for measuring the major carbon-containing gases in the atmosphere from the geostationary vantage point will affordably advance the scientific understating of carbon cycle processes and climate change.
Document ID
20130009354
Document Type
Conference Paper
External Source(s)
Authors
Key, Richard
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Sander, Stanley
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Eldering, Annmarie
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Blavier, Jean-Francois
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Bekker, Dmitriy
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Manatt, Ken
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Rider, David
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Wu, Yen-Hung
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 27, 2013
Publication Date
August 13, 2012
Subject Category
Geophysics
Meeting Information
SPIE Astronomical Telescopes+Instrumentation(Amsterdam)
Distribution Limits
Public
Copyright
Other
Keywords
atmospheric trace gases
hosted payload
geostationary orbit
Fourier Transform Spectrometer
diurnal land-atmosphere carbon exchange