Detection and monitoring of stratigraphic markers and temperature trends at the Greenland Ice Sheet Project 2 using passive-microwave remote-sensing data

C. A. Shuman, R. B. Alley, M. A. Fahnestock, P. J. Fawcett, R. A. Bindschadler, J. W.C. White, P. M. Grootes, S. Anandakrishnan, C. R. Stearns

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

Satellite 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 7B data can be correlated with proxy temperature trends from stable-isotope-ratio (δ18O and δD) profiles from snow pits and this allows the assignment of dates to specific snow depths.

Original languageEnglish (US)
Pages (from-to)26877-26886
Number of pages10
JournalJournal of Geophysical Research: Oceans
Volume102
Issue numberC12
DOIs
StatePublished - Nov 30 1997

All Science Journal Classification (ASJC) codes

  • Geochemistry and Petrology
  • Geophysics
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science
  • Oceanography
  • Earth and Planetary Sciences(all)
  • Environmental Science(all)

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