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A Chapman-Layers Ionspheric Model for MarsA numerical model (CLIMM) is developed that adopts functions of two Chapman layers to compute Mars ionospheric electron densities at given local solar zenith angle and height. Electron density profiles derived from Mars Global Survey (MGS)-to-Earth radio occultation measurements collected during 1998 through 2005 are used to fit the model. The present model does not include variations with solar extreme ultraviolet (EUV) radiation cycles and seasons, and may have increased errors at lower latitudes. A more sophisticated model taking into account these variations is being developed and will be available in the future.
Document ID
20080036081
Acquisition Source
Jet Propulsion Laboratory
Document Type
Other
External Source(s)
Authors
Pi, Xiaoqing
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Edwards, Charles D.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Hajj, George A.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Ao, Chi
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Romans, Larry J.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Callas, John L.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Mannucci, Anthony J.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Asmar, Sami W.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Kahan, Daniel S.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 24, 2013
Publication Date
August 1, 2008
Subject Category
Lunar And Planetary Science And Exploration
Report/Patent Number
JPL-Publ-08-24
Distribution Limits
Public
Copyright
Other
Keywords
solar extreme ultraviolet (EUV)
solar zenith angle
radiation cycles

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