Global-scale Observations of the Limb and Disk (GOLD): Science Objectives

Details Global-scale Observations of the Limb and Disk (GOLD): Science Objectives Global-scale Observations of the Limb and Disk (GOLD): Science Objectives

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006agufmsa43a..06e&link_type=abstract

American Geophysical Union, Fall Meeting 2006, abstract #SA43A-06

Physics

0300 Atmospheric Composition And Structure, 0310 Airglow And Aurora, 2400 Ionosphere (6929), 2716 Energetic Particles: Precipitating, 2778 Ring Current

Scientific paper

Developing the scientific understanding necessary to address aspects of the connected Sun-Earth system that directly affect life and society is a challenge for the scientific community in general and the Living With a Star (LWS) program in particular. Far Ultraviolet (FUV) observations from satellites have made vital contributions to this understanding. The Global-scale Observations of the Earth and Disk (GOLD) experiment, a FUV imager being considered for flight on a geostationary (GEO) satellite as part of the upcoming Radiation Belt Storm Probes (RBSP) mission, will, due to its capabilities and the orbit, provide data needed to answer outstanding science questions. GOLD will provide the first global-scale measurements of temperatures in the lower thermosphere. In addition it will provide more familiar measurements, such as the atomic oxygen to molecular nitrogen (O/N2) ratio. From GEO, GOLD will almost continuously observe the same hemisphere and provide data at all local times each day. These data will allow us to: (1) understand the global-scale response of the thermosphere and ionosphere to geomagnetic and solar forcing; (2) understand the global-scale tidal amplitude and phase variations; and (3) better understand the causes of small-scale ionospheric density irregularities. Such observations are necessary for achieving the LWS program objectives.

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