Lamont-Doherty Earth Observatory173
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A 30 year history of measuring Greenland’s Breathtaking Vistas
We flew our last science flight out of Kangerlussuaq Base (western Greenland) over the Geikie Peninsula, on the east coast of Greenland. This high priority mission had not been completed prior to this because of difficult weather in the peninsula area. The mission focus was to determine how the surface ice elevation and ice thickness…
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Soaring Through the Southeastern Greenland Outlet Glaciers
Our mission was to collect some long survey lines down the center of some of Greenland’s most spectacular southeastern glaciers. The study design would require us to complete a transect across the Greenland ice sheet, fortunately at a location when the country undergoes a noticeable taper. Starting at Kangerlussuaq, our base on Greenland’s west coast,…
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Web Diagramming Rocks: Paper Named Among 10 Best
The researchers found the diagramming helped students form “knowledge networks” that led them to a better understanding of the material.
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It takes a lot of instruments to collect ice measurements!
The Operation IceBridge (OIB) mission is a truly collaborative project with several agencies and multiple instruments involved in collecting independent measurements. The data is then analyzed concurrently to develop an understanding of the ice processes underway. The measurement of sea ice is an excellent example of how multiple methods of measurement are needed to collect…
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Jakobshavn Glacier continues to provide surprises!
We have moved south! One of the many challenges of our Greenland survey is the need to switch bases in the midst of the season since Thule Air Force Base also serves as a staging location for a major resupply mission for many of the Arctic outposts. The whole set up has to be packed…
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Flying Over the Arctic, Collecting Data and Enjoying the View
By Brian Moses This past week, Operation IceBridge undertook a detailed survey of the ICEX camp, situated on the ice sheet north of Alaska. This complex 3 day mission involves a transit to Fairbanks, AK over the top of the world, refueling in Fairbanks and flying the survey on day two, and a low-altitude nighttime…
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Signals of Past Say Big Droughts Can Hit U.S. East
Tree Rings Show Dry Periods Worse Than Any Historical Record
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IceBridge Team Settles in the North
Operation IceBridge has returned to the Arctic for a second Greenland season collecting critical measurements of Arctic sea ice cover and thickness and Greenland’s coastal outlet glaciers. Traveling on a DC8 outfitted as a cargo plane with only 6 rows of seats, the team flew from Baltimore MD to Thule in northern Greenland. The workhorse…
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Done in Khulna, back to Dhaka and then home
On Saturday, we finished up work at the site. Even at the last minute, it threw some challenges at us. We began the day with out reduced group eating breakfast down the street. We could no longer take the mediocre food at the hotel. Dhiman and Babu had been eating there for days. Besides paratha,…
AGU25, the premier Earth and space science conference, takes place December 15-19, 2025 in New Orleans, Louisiana. This year’s theme—Where Science Connects Us—puts in focus how science depends on connection, from the lab to the field to the ballot box. Once again, Lamont-Doherty Earth Observatory and Columbia Climate School scientists, experts, students, and educators are playing an active role, sharing our research and helping shape the future of our planet. #AGU25 Learn More
