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Insolation Effects on Lunar Hydrogen: Observation from the LRO LEND and LOLA InstrumentsThe Moon's polar permanent shadow regions (PSR) have long been considered the unique repository for volatile Hydrogen (H) Largely, this was due to the extreme and persistently cold environment that has been maintained over eons of lunar history. However, recent discoveries indicate that the H picture may be more complex than thc PSR hypothesis suggests. Observations by the Lunar Exploration Neutron Detect (LEND) onboard the Lunar Reconnaissance Orbiter (LRO) indicate some H concentrations lie outside PSR. Similarly, observations from Chandraayan-l's M3 and Deep Impact's EPOXI near infra-red observations indicate diurnal cycling of volatile H in lower latitudes. These results suggest other geophysical phenomena may also play a role in the Lunar Hydrogen budget. In this presentation we review the techniques and results from the recent high latitude analysis and apply similar techniques to equatorial regions. Results from our low latitude analysis will be reported. We discuss interpretations and implications for Lunar Hydrogen studies
Document ID
20110008726
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
McClanahan, T. P. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Mitrofanov, I. G. (Academy of Sciences (Russia) Moscow, Russian Federation)
Boynton, W. V. (Arizona Univ. Tucson, AZ, United States)
Chin, G. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Droege, G. (Arizona Univ. Tucson, AZ, United States)
Evans, L. G. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Garvin, J. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Harshman, K. (Arizona Univ. Tucson, AZ, United States)
Livak, M. M. (Academy of Sciences (Russia) Moscow, Russian Federation)
Malakhov, A. (Academy of Sciences (Russia) Moscow, Russian Federation)
Milikh, G. M. (Catholic Univ. of America Washington, DC, United States)
Namkung, M. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Nandikotkur, G. (Maryland Univ. College Park, MD, United States)
Neumann, G. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Smith, D. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Sagdeev, R. (Computer Sciences Corp. Glenn Dale, MD, United States)
Sanin, A. G. (Academy of Sciences (Russia) Moscow, Russian Federation)
Starr, R. D. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Trombka, J. I. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Zuber, M. T. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 25, 2013
Publication Date
January 1, 2011
Subject Category
Lunar And Planetary Science And Exploration
Distribution Limits
Public
Copyright
Public Use Permitted.

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