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GRACE
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First GPS Occultations from GRACE
Dear Colleagues,
It is my pleasure to announce we have processed the first atmospheric occultation profiles from the GRACE satellite.
The relevant files are linked below.
Please check the GENESIS web site for possible updates:
http://genesis.jpl.nasa.gov
I would like to thank everybody on the GPS Earth Observatory team at JPL for their participation in this successful
first test of the GPS occultation capability onboard GRACE. Thanks also to the GRACE team for scheduling and operating
the test. We are very encouraged by the results and look forward to exciting scientific contributions from the GRACE
GPS occultation experiment.
Sincerely,
Tony Mannucci
Supervisor, Ionospheric and Atmospheric Remote Sensing Group
Jet Propulsion Laboratory, California Institute of Technology
Pasadena, CA
GPS Earth Observatory Team at JPL:
Chi Ao
Danan Dong
George Hajj
Byron Iijima
Manuel de la Torre Juarez
Da Kuang
Tony Mannucci
Tom Meehan
Larry Young
Special Thanks to:
Willy Bertiger
Gerhard Kruizinga
Da Kuang
Additional comments courtesy of George Hajj:
The retrieval is completely independent of any model (we initialize the hydrostatic at
50km, with T=245K). Note the interesting sharp structure near the tropopause missed by
the model (occultation number 1).
download pdf
download pdf
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