Ground Ice

Circumpolar Mapping of Ground-Fast Lake Ice

1 Zentralanstalt für Meteorologie und Geodynamik, Vienna, Austria, 2 Department of Geodesy and Geoinformation, Vienna University of Technology, Vienna, Austria, 3 Academic Department of Cryosophy, Earth Cryosphere Institute, Russian Academy of Sciences, Tyumen, Russia, 4 Academic Department of Cryosophy, Tyumen State University, Tyumen, Russia, 5 Svalbard Integrated Arctic Earth Observing Syste...

Comparison of geophysical investigations for detection of massive ground ice (pingo ice)

[1] Six different geophysical investigations, (1) ground-penetrating radar, (2) DC resistivity sounding, (3) seismic refraction, (4) very low frequency (VHF) electromagnetic, (5) helicopter borne electromagnetic (HEM), and (6) transient electromagnetic (TEM) techniques, were employed to obtain information on the ice body properties of pingos near Fairbanks, Alaska. The surface nuclear magnetic ...

Secular Retention of Tropical Ground Ice on Mars

Geomorphic Evidence for Martian Ground Ice and Climate Change

Introduction: Recent results from gamma-ray and neutron spectrometers on Mars Odyssey indicate the presence of a hydrogen-rich layer tens of centimeters thick in the uppermost meter in high latitudes (>60 ̊) on Mars [1]. This hydrogen-rich layer correlates to regions of ice stability [2]. Thus, the subsurface hydrogen is thought to be water ice constituting 35+/15% by weight near the north and s...

Spatial relationships between patterned ground and ground ice detected by the Neutron Spectrometer on Mars

[1] Patterned grounds, like polygonal features, are the signature of climatic effects in periglacial regions on Earth. Identifying similar features on Mars is important for an understanding of the past Martian climate. In this study we mapped fresh patterned landforms from the systematic analysis of Mars Orbiter Camera high-resolution images. We show that most of them are distributed at latitud...