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S-HIS Atlantic THORPEX Experiment Quicklook Page


Part of the  CIMSSWeb


Introduction
THORPEX objectives are, 1) to evaluate the potential of various in situ and remote sensing observation systems to provide the observations needed to accelerate improvements in operational weather predictions, 2) to evaluate model sensitivity studies and test the impact of targeted observations by participant systems on the performance of those operational models, and 3) to begin to acquire the observational data needed to develop intelligent observing systems and the models and data assimilation systems that will interact dynamically with those observing systems. 
 
SUMMARY OF DATA COLLECTION DURING Atlantic-TOST
 University of Wisconsin - Madison
 Scanning High-resolution Interferometer Sounder (SHIS);
 PI: Henry E. Revercomb (hankr@ssec.wisc.edu)
Flight Date Sortie # Mission Summary Data Start (UTC) Data End (UTC) Flight Length (Minutes)
11/03/2003 N/A Lab Test 18.9 19.3 24
11/06/2003 04-6013 First Checkout flight over California 1925 2115 115
11/13/2003 04-6014 Second Checkout Flight over California 1715 1855 100
11/14/2003 04-6015 Pilot Proficiency Flight 1715 1915 120
11/17/2003 04-6016 Ferry from Dryden to Bangor 1500 2100 360
11/19/2003 04-6017 AQUA Overpass, multi-layer clouds 1555 2111 316
11/28/2003 04-6018 Racetrack pattern over Montreal/Mirabel 1500 2005 305
12/02/2003 04-6019 Coordination with Citation south from St. John's Island 1323 1944 381
12/03/2003 04-6020 AQUA Underflight mission. Variable cloud conditions. 1335 1923 348
12/04/2003 04-6021 AIRS-II "icing" mission over Mirabel 1432 1828 236
12/05/2003 04-6022 Flight supported all three objective of ATREC, AQUA satellite validation, and AIRS-II 1521 2149 388
12/08/2003 04-6023 AQUA underflight. Night mission. 2205 0319 219
12/10/2003 04-6024 ATReC support flight to eastern areas (~40W) 1558 2221 379
12/11/2003 04-6025 AIRS-II mission to Mirabel 1628 1940 192
12/14/2003 04-6026 Aqua underflight centered on eastern tip of Cape Cod 1600 2200 360
12/17/2003 04-6027 Ferry from Bangor, Me to DFRC, CA 1600 2205 365
Total Flight Hours: 70.13

Instrument Summary
The Scanning High-resolution Interferometer Sounder (S-HIS) is a scanning interferometer which measures emitted thermal radiation at high spectral resolution between 3.3 and 18 microns (specifications).  The measured emitted radiance is used to obtain temperature and water vapor profiles of the Earth's atmosphere.  S-HIS produces sounding data with 2 kilometer resolution (at nadir) across a 40 kilometer ground swath from a nominal altitude of 20 kilometers onboard a NASA ER-2 aircraft or 20 kilometer ground swath from a nominal altitude of 10 kilometers aboard the NASA DC-8 aircraft. 

Data
Below are links to the online archive of S-HIS data and other information pertinent to this field experiment.

Related Links Software
S-HIS data are stored in network common data format (netCDF).  Programs for reading S-HIS data in this format are available in Fortran, IDL, Matlab source code.  To visualize S-HIS data, a Matlab browser is available for basic image viewing. 

Last Updated 12/09/2002 by kenneth.vinson@ssec.wisc.edu