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Cold-season Methane Emissions in Alaska

Frost clings to an eddy covariance tower in Barrow, Alaska. The sensors measure methane emissions year round and are equipped with deicers to prevent them from malfunctioning in the Arctic’s frigid temperatures. The tower also measures other meteorological variables, including air temperature, humidity, soil temperature, and soil moisture. (Courtesy S. Losacco)

Frost clings to an eddy covariance tower in Barrow, Alaska. The sensors measure methane emissions year round and are equipped with deicers to prevent them from malfunctioning in the Arctic’s frigid temperatures. The tower also measures other meteorological variables, including air temperature, humidity, soil temperature, and soil moisture. (Courtesy S. Losacco)

Scientists with CARVE track methane emission in Alaska all year round.

Monitoring Alaska's Permafrost

Mean remotely-sensed active layer thickness (cm) near Barrow, Alaska.

Mean remotely-sensed active layer thickness (cm) near Barrow, Alaska. Data from http://dx.doi.org/10.3334/ORNLDAAC/1266.

Measuring changes in the thickness of the soil's active layer provides insight into climate change in the Arctic.

Tracking soil moisture across North America with AirMOSS

AirMOSS radar returns at BERMS, Saskatchewan, on April 22, 2013, rendered as a color image.

AirMOSS radar returns at the BERMS site in Saskatchewan, Canada, on April 22, 2013, rendered as a color image. The AirMOSS radar is a P-band fully polarimetric synthetic aperture radar (SAR) that can penetrate through vegetation and soil to depths of approximately 1.2 meters.

AirMOSS used ultra-high frequency synthetic aperture radar to measure root-zone soil moisture at sites across North America from Canada to Costa Rica.

ORNL DAAC MODIS Team receives NSDI Champion of the Year Award

From left to right: Ivan DeLoatch, Robert Cook, Makhan Virdi, Suresh Vannan, Camille Touton, Kevin Gallagher

From left to right: Ivan DeLoatch, Robert Cook, Makhan Virdi, Suresh Vannan, Camille Touton, Kevin Gallagher

The ORNL DAAC's MODIS subsetting tool was recognized by the Federal Geographic Data Committee.

Daymet Version 3 Available

Daymet precipitation across eastern North America

Daymet V3 total precipitation for January (top) and August (bottom) of 2000 for a subset of the Daymet domain in eastern North America.

Version 3 expands Daymet coverage to the entire North American continent based on an improved algorithm, more robust ground-based weather station inputs, and additional climate networks.

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