MARSCHALS: development of an airborne millimeter-wave limb sounder

Matthew Oldfield; Brian P. Moyna; Elie Allouis; Robert Brunt; Ugo Cortesi; Brian N. Ellison; John Eskell; Tony Forward; Tony Jones; Daniel Lamarre; Joerg Langen; Peter J. I. de Maagt; David N. Matheson; Ivor Morgan; Jolyon Reburn; Richard Siddans

doi:10.1117/12.450663

12 December 2001 MARSCHALS: development of an airborne millimeter-wave limb sounder

Matthew Oldfield, Brian P. Moyna, Elie Allouis, Robert Brunt, Ugo Cortesi, Brian N. Ellison, John Eskell, Tony Forward, Tony Jones, Daniel Lamarre, Joerg Langen, Peter J. I. de Maagt, David N. Matheson, Ivor Morgan, Jolyon Reburn, Richard Siddans

Author Affiliations +

Proceedings Volume 4540, Sensors, Systems, and Next-Generation Satellites V; (2001) https://doi.org/10.1117/12.450663
Event: International Symposium on Remote Sensing, 2001, Toulouse, France

Abstract

MARSCHALS (Millimeter-wave Airborne Receivers for Spectroscopic CHaracterization in Atmospheric Limb Sounding) is being developed with funding from the European Space Agency as a simulator of MASTER (Millimeter-wave Acquisitions for Stratosphere Troposphere Exchange Research), a limb sounding instrument in a proposed future ESA Earth Explorer Core Mission. The principal and most innovative objective of MARSCHALS is to simulate MASTER's capability for sounding O₃, H₂O and CO at high vertical resolution in the upper troposphere (UT) using millimeter wave receivers at 300, 325, and 345 GHz. Spectra are recorded in these bands with 200 MHz resolution. As such, MARSCHALs is the first limb-sounder to be explicitly designed and built for the purpose of sounding the composition of the UT, in addition to the Lower Stratosphere (LS) where HNO₃, N₂O and additional trace gases will also be measured. A particular attribute of millimeter-wave measurements is their comparative insensitivity to ice clouds. However, to assess the impact on the measurements of cirrus in the UT, MARSCHALs has a near-IR digital video camera aligned in azimuth with the 235 mm limb-scanning antenna. In addition to UT and LS aircraft measurements, MARSCHALs is capable of making mid-stratospheric measurements from a balloon platform when fitted with a 400 mm antenna. Provision has been made to add further receiver channels and a high resolution spectrometer.

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Matthew Oldfield, Brian P. Moyna, Elie Allouis, Robert Brunt, Ugo Cortesi, Brian N. Ellison, John Eskell, Tony Forward, Tony Jones, Daniel Lamarre, Joerg Langen, Peter J. I. de Maagt, David N. Matheson, Ivor Morgan, Jolyon Reburn, and Richard Siddans "MARSCHALS: development of an airborne millimeter-wave limb sounder", Proc. SPIE 4540, Sensors, Systems, and Next-Generation Satellites V, (12 December 2001); https://doi.org/10.1117/12.450663

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