Using the Tiny Ionospheric Photometer (TIP) on the COSMIC Satellites to Characterize the Ionosphere

Details Using the Tiny Ionospheric Photometer (TIP) on the COSMIC Satellites to Characterize the Ionosphere Using the Tiny Ionospheric Photometer (TIP) on the COSMIC Satellites to Characterize the Ionosphere

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002agufmsa52a0389c&link_type=abstract

American Geophysical Union, Fall Meeting 2002, abstract #SA52A-0389

Physics

2407 Auroral Ionosphere (2704), 2415 Equatorial Ionosphere, 2439 Ionospheric Irregularities, 2447 Modeling And Forecasting, 2494 Instruments And Techniques

Scientific paper

The Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC) will use the Tiny Ionospheric Photometer (TIP) to characterize the nighttime ionosphere. The TIP is a compact, narrow-band, ultraviolet photometer operating at the 135.6 nm wavelength. This emission is produced by recombination of O+ ions and electrons, which is the natural decay process for the ionosphere. At night, the strength of the emission is proportional to the product of the square of the peak electron density; during the daytime the emission is dominated by photoelectron impact excitation of atomic oxygen and is not useful for ionospheric sensing. The principal science mission of the TIP is to measure horizontal gradients of ionospheric electron density. These measurements will be combined with vertical gradient measurements, provided by GPS occultations, to reconstruct high accuracy electron density distributions in the nighttime ionosphere. Secondary science goals are to map and monitor the global F-region peak electron density, to locate the positions of the Appleton anomalies, to observe mesoscale ionospheric density structures (ionospheric irregularities), to map and monitor the global vertical total electron content, and to map and monitor the location of the auroral boundary. We present an overview of the TIP, how it will function, and an overview of the data and data products it will produce.

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