File:Antarctic Temperature Trend 1981-2007.jpg
Summary
Map showing Antarctic Skin Temperature Trends between <a href="https://en.wikipedia.org/wiki/1981" class="extiw" title="en:1981">1981</a> and 2007. Skin temperature is roughly the top one <a href="https://en.wikipedia.org/wiki/millimeter" class="extiw" title="en:millimeter">millimeter</a> of land, sea, <a href="https://en.wikipedia.org/wiki/snow" class="extiw" title="en:snow">snow</a>, or ice. Across most of the <a href="https://en.wikipedia.org/wiki/Antarctic" class="extiw" title="en:Antarctic">Antarctic</a> the temperature increased, in some areas warming approaching 2 degrees <a href="https://en.wikipedia.org/wiki/Celsius" class="extiw" title="en:Celsius">Celsius</a> during the period. The map is based on thermal <a href="https://en.wikipedia.org/wiki/infrared" class="extiw" title="en:infrared">infrared</a> (heat) observations made by a series of <a href="https://en.wikipedia.org/wiki/National_Oceanic_and_Atmospheric_Administration" class="extiw" title="en:National Oceanic and Atmospheric Administration">NOAA</a> satellite sensors. None of the sensors were in <a href="https://en.wikipedia.org/wiki/Orbit" class="extiw" title="en:Orbit">orbit</a> at the same time, so <a href="https://en.wikipedia.org/wiki/scientists" class="extiw" title="en:scientists">scientists</a> could not compare simultaneous observations from different sensors to make sure each was recording temperatures exactly the same. Instead, the team checked the <a href="https://en.wikipedia.org/wiki/Satellite_temperature_measurements" class="extiw" title="en:Satellite temperature measurements">satellite records</a> against ground-based <a href="https://en.wikipedia.org/wiki/weather_station" class="extiw" title="en:weather station">weather station</a> data to inter-calibrate them and make the 26-year satellite record. The level of uncertainty is between 2 and 3 degrees Celsius. The most dramatic changes are the red areas associated with <a href="https://en.wikipedia.org/wiki/iceberg" class="extiw" title="en:iceberg">iceberg</a> <a href="https://en.wikipedia.org/wiki/Ice_calving" class="extiw" title="en:Ice calving">calving</a> and the collapse of the <a href="https://en.wikipedia.org/wiki/Larsen_B_ice_shelf" class="extiw" title="en:Larsen B ice shelf">Larsen B ice shelf</a>. In these cases, the <a href="https://en.wikipedia.org/wiki/Satellite" class="extiw" title="en:Satellite">satellites</a> saw a change from cold ice to relatively warm <a href="https://en.wikipedia.org/wiki/open_water" class="extiw" title="en:open water">open water</a>.
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 09:10, 5 January 2017 | 540 × 508 (93 KB) | 127.0.0.1 (talk) | <p>Map showing Antarctic Skin Temperature Trends between <a href="https://en.wikipedia.org/wiki/1981" class="extiw" title="en:1981">1981</a> and 2007. Skin temperature is roughly the top one <a href="https://en.wikipedia.org/wiki/millimeter" class="extiw" title="en:millimeter">millimeter</a> of land, sea, <a href="https://en.wikipedia.org/wiki/snow" class="extiw" title="en:snow">snow</a>, or ice. Across most of the <a href="https://en.wikipedia.org/wiki/Antarctic" class="extiw" title="en:Antarctic">Antarctic</a> the temperature increased, in some areas warming approaching 2 degrees <a href="https://en.wikipedia.org/wiki/Celsius" class="extiw" title="en:Celsius">Celsius</a> during the period. The map is based on thermal <a href="https://en.wikipedia.org/wiki/infrared" class="extiw" title="en:infrared">infrared</a> (heat) observations made by a series of <a href="https://en.wikipedia.org/wiki/National_Oceanic_and_Atmospheric_Administration" class="extiw" title="en:National Oceanic and Atmospheric Administration">NOAA</a> satellite sensors. None of the sensors were in <a href="https://en.wikipedia.org/wiki/Orbit" class="extiw" title="en:Orbit">orbit</a> at the same time, so <a href="https://en.wikipedia.org/wiki/scientists" class="extiw" title="en:scientists">scientists</a> could not compare simultaneous observations from different sensors to make sure each was recording temperatures exactly the same. Instead, the team checked the <a href="https://en.wikipedia.org/wiki/Satellite_temperature_measurements" class="extiw" title="en:Satellite temperature measurements">satellite records</a> against ground-based <a href="https://en.wikipedia.org/wiki/weather_station" class="extiw" title="en:weather station">weather station</a> data to inter-calibrate them and make the 26-year satellite record. The level of uncertainty is between 2 and 3 degrees Celsius. The most dramatic changes are the red areas associated with <a href="https://en.wikipedia.org/wiki/iceberg" class="extiw" title="en:iceberg">iceberg</a> <a href="https://en.wikipedia.org/wiki/Ice_calving" class="extiw" title="en:Ice calving">calving</a> and the collapse of the <a href="https://en.wikipedia.org/wiki/Larsen_B_ice_shelf" class="extiw" title="en:Larsen B ice shelf">Larsen B ice shelf</a>. In these cases, the <a href="https://en.wikipedia.org/wiki/Satellite" class="extiw" title="en:Satellite">satellites</a> saw a change from cold ice to relatively warm <a href="https://en.wikipedia.org/wiki/open_water" class="extiw" title="en:open water">open water</a>. </p> |
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