First ISCCP Regional Experiment (FIRE) Cirrus 2 NASA ER-2 Moderate Resolution Imaging Spectroradiometer (MODIS) Airborne Simulator (MAS) (FIRE_CI2_ER2_MAS) Langley DAAC Data Set Document
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First ISCCP Regional Experiment (FIRE) Cirrus 2 NASA ER-2 Moderate Resolution Imaging Spectroradiometer (MODIS) Airborne Simulator (MAS) (FIRE_CI2_ER2_MAS) Langley DAAC Data Set Document |
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The First ISCCP Regional Experiment has been designed to improve data products and cloud/radiation parameterizations used in general circulation models (GCMs). Specifically, the goals of FIRE are (1) to improve basic understanding of the interaction of physical processes in determining life cycles of cirrus and marine stratocumulus systems and the radiative properties of these clouds during their life cycles and (2) to investigate the interrelationships between the ISCCP data, GCM parameterizations, and higher space and time resolution cloud data.
To-date, four intensive field-observation periods were planned and executed: a cirrus IFO (October 13 - November 2, 1986); a marine stratocumulus IFO off the southwestern coast of California (June 29 - July 20, 1987); a second cirrus IFO in southeastern Kansas (November 13 - December 7, 1991); and a second marine stratocumulus IFO in the eastern North Atlantic Ocean (June 1 - June 28, 1992). Each mission combined coordinated satellite, airborne, and surface observations with modeling studies to investigate the cloud properties and physical processes of the cloud systems.
This document provides information on the FIRE_CI2_ER2_MAS data set.
| FIRE_CI2_ER2_MAS: | First ISCCP Regional Experiment (FIRE) NASA ER-2 Moderate Resolution Imaging Spectroradiometer (MODIS) Airborne Simulator (MAS) Data (FIRE_CI2_ER2_MAS) |
The MODIS Airbourne Simulator (MAS) is a modified Daedalus Wildfire scanning spectrometer which flies on the NASA ER-2 and provides spectral information similar to that which will be provided by the Moderate Resolution Imaging Spectroradiometer (MODIS), scheduled to be launched on the EOS-AM platform in 1998 (King et al., 1992). The principal investigators for the MAS are Dr. Michael King (NASA/GSFC, Greenbelt MD) and Dr. Paul Menzel (NOAA/NESDIS, Madison WI).
In November/December 1991, the modified Wildfire instrument was flown during the FIRE Cirrus-II experiment onboard the NASA ER-2 aircraft in coordination with other aircraft and satellites over the Coffeyville, KS field site as well as the Texas and Louisiana coast.
In January 1992, the modified Wildfire instrument was converted to MAS configuration. In June 1992 the MAS was flown over portions of the Atlantic Ocean in the region of the Azores during the ASTEX experiment. Although the MAS instrument is a 50 band spectrometer, the data system used in this experiment could only record 12 channels (at 8-bit resolution).
The MAS spectrometer acquires high spatial resolution imagery in the wavelength range of 0.55 to 14.3 microns. A total of 50 spectral bands are available in this range, and the digitizer can be configured to collect data from any 12 of these bands. The digitizer was configured with four 10-bit channels and seven 8-bit channels. The MAS spectrometer was mated to a scanner subassembly which collected image data with an IFOV of 2.5 mrad, giving a ground resolution of 50 meters from 20000 meters altitude, and a cross track scan width of 85.92 degrees. The data granules were written using the self documenting file storage format provided through the netCDF interface routines included in the HDF libraries.
Not available at this time.
Radiance
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| FIRE_AX_ER2_MAS: | First ISCCP Regional Experiment (FIRE) Atlantic Stratocumulus Transition Experiment (ASTEX) NASA ER-2 Moderate Resolution Imaging Spectroradiometer (MODIS) Airborne Simulator (MAS) Data (FIRE_AX_ER2_MAS) |
| SCAR_A_ER2_MAS: | Sulfates, Clouds and Radiation America (SCAR A) NASA ER-2 Moderate Resolution Imaging Spectroradiometer (MODIS) Airborne Simulator (MAS) Data (SCAR_A_ER2_MAS) |
| SCAR_B_ER2_MAS: | Smoke, Clouds and Radiation America (SCAR B) NASA ER-2 Moderate Resolution Imaging Spectroradiometer (MODIS) Airborne Simulator (MAS) Data (SCAR_B_ER2_MAS) |
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Michael D. King, Ph. D. NASA Goddard Space Flight Center Code 900 Greenbelt, MD 20771 USA Phone: (301) 286-8228 FAX: (301) 286-1738 E-mail: king@climate.gsfc.nasa.gov |
Paul Menzel, Ph. D. NOAA/NESDIS 1225 W. Dayton St. Madison WI 53706 USA Phone: (608) 263-4930 FAX: (608) 262-5974 E-mail: paulm@ssec.wisc.edu |
First ISCCP Regional Experiment (FIRE) Cirrus 2
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See MAS User's Guide.
See MAS User's Guide.
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| Data Set Name |
Min Lat |
Max Lat |
Min Lon |
Max Lon |
|---|---|---|---|---|
| FIRE_CI2_ER2_MAS | 23.65 | 39.62 | -124.11 | -88.90 |
None available.
50 meters (at 20 kilometers altitude)
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| Data Set Name |
Begin Date |
End Date |
|---|---|---|
| FIRE_CI2_ER2_MAS | 10-31-1991 | 12-7-1991 |
None available.
Each granule contains data from one flight track.
See MAS User's Guide.
Not available at this time.
A general description of data granularity as it applies to the IMS appears
in the
EOSDIS Glossary.
One granule contains one flight track.
The data are in NCSA's HDF/netCDF format.
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There are two browse images, infrared and visible, per granule.
Information not available at this time.
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There are no plans for future modifications of this data set.
Sample read software are available for these data sets. The codes are written in C. A makefile and readme file are also available. These files allow users to compile and output the data.
The software can be obtained through the Langley DAAC User Services Office. Please refer to the contact information in Section 15. The software can also be ordered through the on-line system while ordering these data sets.
The data are available from the Langley Data Center web site.
The Langley DAAC will continue to archive these data sets. There are no plans to reprocess.
None available.
Arnold, G.T., M. Fitzgerald, P.S. Grant, and M.D. King, 1994a: MODIS Airborne Simulator Visible and Near-Infrared Calibration - 1991 FIRE-Cirrus Field Experiment. NASA Goddard Space Flight Center, NASA Technical Memorandum 104600.
Arnold, G.T., M. Fitzgerald, P.S. Grant, and M.D. King, 1994b: MODIS Airborne Simulator Visible and Near-Infrared Calibration - 1992 ASTEX Field Experiment. NASA Goddard Space Flight Center, NASA Technical Memorandum 104599.
Gumley, L.E., P.A. Hubanks, E.J. Masuoka, 1994: MODIS Technical Report Series: Volume 3, MODIS Airborne Simulator Level 1B Data User's Guide. NASA Goddard Space Flight Center, NASA Technical Memorandumn 104594.
Jedlovec, G.J., K.B. Batson, R.J. Atkinson, C.C. Moeller, W.P. Menzel, and M.W. James, 1989: Improved Capabilities of the Multispectral Atmospheric Mapping Sensor (MAMS). NASA Marshall Space Flight Center, NASA Technical Memorandum 100352.
King, M.D., Y.J. Kaufman, W.P. Menzel and D. Tanre, 1992: Remote sensing of cloud, aerosol, and water vapor Properties from the Moderate Resolution Imaging Spectrometer (MODIS). IEEE Trans. Geosci. Remote Sens., 30, 2-27.
King, M.D., W.P. Menzel, P.S. Grant, J.S. Myers, G.T. Arnold, S.E. Platnick, L.E. Gumley, S-C. Tsay, C.C. Moeller, M. Fitzgerald, K.S. Browsn and F.G. Osterwisch, 1996: Airborne Scanning Spectrometer for Remote Sensing of Cloud, Aerosol, Water Vapor, and Surface Properties. Journal of Atmospheric and Oceanic Technology, 13(4), 777-794.
