Mathematics – Logic
Scientific paper
Dec 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002agufm.p71a0450y&link_type=abstract
American Geophysical Union, Fall Meeting 2002, abstract #P71A-0450
Mathematics
Logic
0933 Remote Sensing
Scientific paper
The objective is to detect the hydrological and cryological structure of the cold continuous permafrost subsurface using geophysical methods. We believe that a lot of water potentially exists as solid and liquid phases underground on Mars. It is likely that the liquid fluid would be high in saline concentration (brine). The ground freezing process involves many hydrological processes including enrichment of the brine layer. The brine layer is an important environment for ancient and/or current life to exist on terrestrial permafrost regions. The existence of a Martian brine layer would increase the possibility of the existence of life, as on Earth. In situ electric resistivity measurement will be the most efficient method to determine brine layer as well as massive H2O ice in the permafrost. However, the wiring configuration is unlikely to operate on the remote planetary surface. Satellite-born Radar and/or EM methods will be the most accessible methods for detecting the hydrological and cryological structure. We are testing several geophysical methods at the brine layer site in Barrow and massive pingo ice site in Fairbanks, Alaska. The radar system is affected by the dielectric properties of subsurface materials, which allows for evidence of liquid phase in the frozen ground. The dielectric constant varies greatly between liquid water and frozen ground. The depth of the terrestrial (and probably Martian) brine layer is frequently located deeper than the maximum detecting depth of the impulse type of the ground penetrating radar system. Once we develop a radar system with a deeper penetrating capability (Lower frequency), the dispersion of the ground ice will be the key function for interpretation of these signals. We will improve and use radar signals to understand the hydrological and cryological structure in the permafrost. The core samples and borehole temperature data validate these radar signals.
Brown Jacqueline
Romanovsky V. V.
Tsapin Alexandre
Yoshikawa Kenichi
No associations
LandOfFree
Detecting a liquid and solid H2O layer by geophysical methods does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Detecting a liquid and solid H2O layer by geophysical methods, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Detecting a liquid and solid H2O layer by geophysical methods will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1892336