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Detection and Monitoring of Stratigraphic Markers and Temperature Trends at the Greenland Ice Sheet Project 2 Using Passive-Microwave Remote-Sensing DataSatellite passive-microwave sensors provide a sensitive means of studying ice-sheet surface processes that assists ice-core interpretation and can extend local observations across regional scales. Analysis of special sensor microwave/imager (SSM/I) brightness temperature (TB) data supports ice-core research in two specific ways. First, the summer hoar complex layers used to date the Holocene portion of the Greenland Ice Sheet Project 2 ice core can be defined temporally and spatially by SSM/I 37-GHz vertically (V) and horizontally (H) polarized B ratio (V/H) trends. Second, comparison of automatic weather station temperatures to SSM/I 37-GHz V TB data shows that they are an effective proxy temperature record in this region. Also, the TB data can be correlated with proxy temperature trends from stable-isotope-ratio (delta O-18 and delta-D) profiles from snow pits and this allows the assignment of dates to specific snow depths.
Document ID
20000038169
Acquisition Source
Goddard Space Flight Center
Document Type
Reprint (Version printed in journal)
Authors
Shuman, C. A.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Alley, R. B.
(Pennsylvania State Univ. University Park, PA United States)
Fahnestock, M. A.
(Maryland Univ. College Park, MD United States)
Fawcett, P. J.
(Pennsylvania State Univ. University Park, PA United States)
Bondschadler, R. A.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
White, J. W. C.
(Colorado Univ. Boulder, CO United States)
Grootes, P. M.
(Kiel Univ. Germany)
Anandakrishnan, S.
(Pennsylvania State Univ. University Park, PA United States)
Stearns, C. R.
(Wisconsin Univ. Madison, WI United States)
Date Acquired
August 19, 2013
Publication Date
January 1, 1997
Publication Information
Publication: Laboratory for Hydrospheric Processes Research Publications
Subject Category
Earth Resources And Remote Sensing
Distribution Limits
Public
Copyright
Other

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