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Politics : View from the Center and Left

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From: T L Comiskey	7/22/2014 10:20:36 PM
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Methane release in the Arctic............................................ The Arctic Methane Monster Stirs: NASA’s CARVE* Finds Plumes as Large as 150 Kilometers Across Amidst Year of Troubling Spikes CARVE.*.........Carbon in Arctic Reservoirs Vulnerability Experiment robertscribbler.wordpress.com CARVE is using the Arctic-proven C-23 Sherpa aircraft to fly an innovative airborne remote sensing payload. It includes an infrared camera and a nadir-viewing spectrometer to deliver the first simultaneous measurements of surface parameters that control gas emissions (i.e., soil moisture, freeze/thaw state, surface temperature) and total atmospheric columns of carbon dioxide, methane, and carbon monoxide. The aircraft payload also includes a gas analyzer that links greenhouse gas measurements directly to World Meteorological Organization standards. Deployments occur during the spring, summer and early fall when Arctic carbon fluxes are large and change rapidly. Further, at these times, the sensitivities of ecosystems to external forces such as fire and anomalous variability of temperature and precipitation are maximized. Continuous ground-based measurements provide temporal and regional context as well as calibration for CARVE airborne measurements.

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