Arctic Sea Ice Lead : 無料・フリー素材/写真
Arctic Sea Ice Lead / NASA Goddard Photo and Video
| ライセンス | クリエイティブ・コモンズ 表示 2.1 |
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| 説明 | Cracks between sheets of sea ice are called leads, as as seen in this image of Arctic sea ice from the DMS instrument from a recent Operation IceBridge aerial survey.To read more go to: 1.usa.gov/PkgRuqCredit: NASA/GSFCNASA and the National Snow and Ice Data Center (NSIDC) announced on Aug. 27, 2012, that the ice cap covering the Arctic Ocean is now smaller than ever recorded since consistent satellite measurements of the ice began more than three decades ago. Each year, the ice cap goes through a shrink-and-swell cycle, melting throughout the summer months before expanding through fall and winter. In the past decade in particular the minimum summertime extent of the ice cap has shown a consistent decline in size – a trend closely linked with the Arctic's warming climate. NASA and NSIDC scientists said the extent of Arctic sea ice on Aug. 26 surpassed the previous record minimum extent set in the summer of 2007. The ice cap will continue to melt and get smaller in the coming weeks before temperatures get colder and ice begins to refreeze as fall approaches.NASA image use policy.NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission.Follow us on TwitterLike us on FacebookFind us on Instagram |
| 撮影日 | 2011-03-28 15:06:15 |
| 撮影者 | NASA Goddard Photo and Video , Greenbelt, MD, USA |
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| カメラ | Canon EOS 5D Mark II , Canon |
| 露出 | 0.001 sec (1/2000) |
| 開放F値 | f/5.0 |
| 焦点距離 | 28 mm |