Lamont-Doherty Earth Observatory26
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At a Melting Glacier, a Landslide, Then Tsunami, Signal Climate-Related Threat
A peculiar seismic signal was the first indication of a gigantic landslide and subsequent tsunami in the remote mountains of British Columbia. It detected what may be a growing climate-related threat.
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Struggling With Towed Equipment, Repairing GPS, and Home
We switched to a towed electromagnetic system to image the fresh and saline groundwater in Bangladesh, and ran into a variety of problems, including high winds, strong currents and running aground.
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First Long-term Air Pollution Monitoring in Togo Reveals Concerning Levels
A new study finds that annual air pollution levels in the city of Lomé are, on average, four to five times greater than recommended by the World Health Organization.
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A Key U.S. Earth-Sciences Official Visits Columbia to Explore Research Ideas
Oceanographer Richard Spinrad of NOAA participated in a town hall and discussed funding opportunities with Columbia Climate School researchers.
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Continuing the Survey: Watermelon and Winds
Continuing our electromagnetic survey of fresh and saline groundwater, we saw the landscape change from lush watermelon fields to fallow rice fields as the salinity increased towards the sea.
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Barisal and the Eastern Channel
We are continuing our measurements of fresh and saline groundwater in Bangladesh using electromagnetic instruments. We finished our first set of measurements and have now shifted farther east near Barisal where groundwater is fresher.
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Deploying in the Mangrove Forest
We continued our electromagnetic expedition to image fresh and saline groundwater into the Sundarbans Mangrove Forest, the world’s largest. While guards protected us from tigers, it was a wild boar that dug up some of our equipment.
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Sailing Around the Bangladesh Coastal Zone
I am back in Bangladesh to explore the distribution of fresh and saline groundwater in the coastal zone, needed for drinking in the dry season.
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Water Content Controls the Depth of Magma Storage Under Many Volcanoes, Says Study
Research into volcanoes in the Aleutian Islands and elsewhere overturns the conventional understanding of what controls the depth at which rising magma is stored.
