Description of a proposed space-based high-resolution ozone imaging instrument (HIROIG)

Details Description of a proposed space-based high-resolution ozone imaging instrument (HIROIG) Description of a proposed space-based high-resolution ozone imaging instrument (HIROIG)

Sep 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994spie.2266..352h&link_type=abstract

Proc. SPIE Vol. 2266, p. 352-364, Optical Spectroscopic Techniques and Instrumentation for Atmospheric and Space Research, Jinxu

Physics

Scientific paper

In order to measure the effect of rocket exhaust on stratospheric ozone and aerosol profiles, it is necessary to deploy a space-based mid-UV spectrograph capable of making measurements at high spatial resolution (1 - 2 km) of the intensity and state of polarization of solar light backscattered by the atmosphere. This paper describes the design of an instrument called HIROIG (high resolution ozone imager) which is expected to be deployed in a sun synchronous orbit sometime after 1995. The instrument consists of three identical spectrographs, each one sensitive to light polarized in one direction. Each spectrograph uses a frame-transfer CCD which images the entire 270 - 370 nm spectrum at approximately equals 1 nm spectral resolution. Images re exposed, in the push broom mode, for 140 msec, providing an effective spatial resolution of better than 2 km for typical orbital velocities. The HIROIG field of view is 1000 km cross-track. A ground-based prototype consisting of a single spectrograph has been constructed and the characterization of this instrument is discussed.

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