Temperature, ozone, and nitric oxide experiment (TONE) for the thermosphere-ionosphere-mesosphere energetics and dynamics (TIMED) mission
- Univ. of Colorado, Boulder, CO (United States). Lab. for Atmospheric and Space Physics; and others
The Temperature-Ozone-Nitric Oxide Experiment (TONE) on the Thermosphere, Ionosphere, Mesosphere, Energetics, and Dynamics (TIMED) mission consists of two ultraviolet spectrometers and an infrared photometer. A Medium Resolution Spectrometer (MRS) covers the spectral region from 210 to 247 nm with 0.2 nm resolution, and a Low Resolution Spectrometer/Infrared Photometer (LRS/IRP) covers the 235 to 320 mn region with 2.0 nm resolution, and measures the 1.27 micron emission from molecular oxygen excited by ozone photolysis. The Earth`s limb is scanned by articulation mirrors which also serve as the field-of-view limiting elements. The TONE measures profiles of emission as a function of altitude on the Earth`s limb. The primary measurements include profiles of Rayleigh scattered sunlight and 1.27 micron emission in the mesosphere and lower thermosphere, and fluorescent emission from nitric oxide in the upper mesosphere and thermosphere. The inverted radiance measurements will yield profiles of temperature, density, and ozone in the mesosphere, and temperature and nitric oxide density in the thermosphere with 2.5 km vertical resolution and 4.5 degree spatial resolution along the orbital path. The primary TONE measurements extend from 50 to 180 km and are fundamental to the science objectives of the TIMED mission. The broad capabilities of the TONE contribute significantly to the TIMED mission with a low-cost, highly reliable instrument based on a long heritage of space instruments built at the University of Colorado`s Laboratory for Atmospheric and Space Physics. The TONE has heritage from spectrometers on Mariner 9, Pioneer Venus, the Solar Mesosphere Explorer, Galileo, and Cassini. Keywords: thermosphere, mesosphere, ozone, global change, nitric oxide, temperature, ultraviolet spectrometer, remote sensing, limb scanning, polar mesospheric clouds.
- OSTI ID:
- 227970
- Report Number(s):
- CONF-940723-; ISBN 0-8194-1590-1; TRN: IM9622%%247
- Resource Relation:
- Conference: Annual meeting of the Society of Photo-Optical Instrumentation Engineers, San Diego, CA (United States), 24-29 Jul 1994; Other Information: PBD: 1994; Related Information: Is Part Of Optical spectroscopic techniques and instrumentation for atmospheric and space research; Wang, J.; Hays, P.B. [eds.]; PB: 662 p.; Proceedings/SPIE, Volume 2266
- Country of Publication:
- United States
- Language:
- English
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