Imaging observation of the Earth's upper atmosphere by Ionosphere, Mesosphere, upper Atmosphere, and Plasmasphere mapping observation (ISS-IMAP) mission

Details Imaging observation of the Earth's upper atmosphere by Ionosphere, Mesosphere, upper Atmosphere, and Plasmasphere mapping observation (ISS-IMAP) mission Imaging observation of the Earth's upper atmosphere by Ionosphere, Mesosphere, upper Atmosphere, and Plasmasphere mapping observation (ISS-IMAP) mission

Dec 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufmsa31b1983s&link_type=abstract

American Geophysical Union, Fall Meeting 2011, abstract #SA31B-1983

Physics

[0310] Atmospheric Composition And Structure / Airglow And Aurora, [2427] Ionosphere / Ionosphere/Atmosphere Interactions, [2435] Ionosphere / Ionospheric Disturbances, [2768] Magnetospheric Physics / Plasmasphere

Scientific paper

ISS-IMAP (Ionosphere, Mesosphere, upper Atmosphere, and Plasmasphere mapping) mission is a scientific mission that will make imaging observation of the Earth's upper Atmosphere from the Exposed Facility of Japanese Experiment Module on the International Space Station (EF of ISS-JEM). It will be installed in Multi-mission Consolidated Equipment (MCE) on EF of ISS-JEM, and start the observation in 2012. It consists of two imager sets. Visible-light and infrared spectrum imager (VISI) will detect the airglow emission in the mesosphere and the thermosphere/ionosphere, and extra ultraviolet imager (EUVI) will detect the resonant scattering emission from the ions in the ionosphere and the plasmasphere. The objective of this mission is to clarify the physical mechanism of the following three processes: (1) energy transport process by the atmospheric structures whose horizontal scale is 50-500km in the upper atmosphere (2) process of the plasma transport up to 20,000km altitude (3) effect of the upper atmosphere on the space-borne engineering system. ISS-IMAP will measure the following three parameters in the lower latitude region than 50 degrees: (1) distribution of the atmospheric gravity wave in the mesopause (87km), the ionospheric E-region (95km), and the ionospheric F-region (250km) (2) distribution of the ionized atmosphere in the ionospheric F-region (3) distribution of O+ and He+ ions in the ionosphere and plasmasphere. VISI will observe the airglow of 730nm (OH, Alt. 85km), 762nm (O2, Alt 95km) and 630nm(O, Alt.250km) in the Nadir direction. Its field-of-view is 90-degree width perpendicular to the trajectory of ISS, and direct in two directions, forward and backward. The vertical structure of the airglow will be determined by stereo observation with these two slits. EUVI will measure the resonant scattering of 30.4nm [He+] and 83.4nm [O+] with 15 degrees of field-of-view. It points the limb of the Earth to observe the vertical distribution of the ions. The current status and the observational plan of the ISS-IMAP mission will be introduced in the presentation.

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