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| Titel |
Remote Sensing of Arctic and Boreal Atmospheric Composition from a Highly Elliptical Orbit |
| VerfasserIn |
Ray Nassar, C. Tom McElroy, Kaley A. Walker, Chris McLinden, Chris E. Sioris, Dylan B. A. Jones, Randall V. Martin, Yves Rochon, Louis Garand, Alexander P. Trischencko |
| Konferenz |
EGU General Assembly 2016
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| Medientyp |
Artikel
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| Sprache |
en
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 18 (2016) |
| Datensatznummer |
250125490
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| Publikation (Nr.) |
 EGU/EGU2016-5076.pdf |
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| Zusammenfassung |
| The Polar Communications and Weather (PCW) mission is a proposed Canadian mission that
aims to provide continuous meteorological observations and communications capacity over
the Arctic and northern latitudes from a pair of satellites in a highly elliptical orbit (HEO)
configuration. The Weather, Climate and Air quality (WCA) concept is a mission
enhancement that completed a Phase A study through the Polar Highly Elliptical Orbit
Science (PHEOS) program. The PHEOS-WCA instrument suite would consist of a high
resolution Fourier Transform Spectrometer (FTS) operating in the mid-, near- and shortwave
infrared and a UV-Visible grating Spectrometer (UVS), both with 2-dimensional
imaging capability. These instruments would enable dense measurements of numerous
quantities important for understanding weather (H2O and temperature profiles), climate
(column-averaged CO2 and CH4) and air quality (tropospheric O3, CO, NO2, SO2, NH3,
HCN, CH3OH, BrO, aerosols, ….) with a pixel size of 10×10 km2 or better and
repeat time targeted at 2 hours or less. Our studies have demonstrated that HEO
observations of CO2 offer major advantages over those from low earth orbit (LEO) for
constraining CO2 surface sources and sinks in the Arctic and boreal regions, especially in
the summer when there is the potential for the release of CO2 from permafrost
thaw and boreal forest disturbances. This presentation will give an overview of the
PHEOS-WCA mission concept, discuss its complementarity with upcoming international
missions and provide an update on recent progress and challenges in moving forward. |
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