气候变化领域集成服务门户(CCPortal): Gas emissions at the continental margin west off Svalbard during R/V Heinche cruise HE387

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.834000
	Gas emissions at the continental margin west off Svalbard during R/V Heinche cruise HE387
	Sahling; Heiko; Römer; Miriam; Pape; Thomas; Bergès; Benoit; dos Santos Ferreira; Christian; Boelmann; Jan; Geprägs; Patrizia; Tomczyk; Michal; Nowald; Nicolas; Dimmler; Werner; Schroedter; Leah; Glockzin; Michael; Bohrmann; Gerhard
发布日期	2014-07-15
数据集类型	dataset
英文简介	We mapped, sampled, and quantified gas emissions at the continental margin west of Svalbard during R/V Heincke cruise He-387 in late summer 2012. Hydroacoustic mapping revealed that gas emissions were not limited to a zone just above 396 m below sea level (m b.s.l.). Flares from this depth gained significant attention in the scientific community in recent years because they may be caused by bottom water-warming induced hydrate dissolution in the course of global warming and/or by recurring seasonal hydrate formation and decay. We found that gas emissions occurred widespread between about 80 and 415 m b.s.l. which indicates that hydrate dissolution might only be one of several triggers for active hydrocarbon seepage in that area. Gas emissions were remarkably intensive at the main ridge of the forlandet moraine complex in 80 to 90 m water depths, and may be related to thawing permafrost.
空间范围	Median Latitude: 78.592411 * Median Longitude: 0.042825 * South-bound Latitude: 78.349118 * West-bound Longitude: -10.519577 * North-bound Latitude: 78.769932 * East-bound Longitude: 10.237540
时间范围	2012-08-21T18:07:29 - 2012-09-08T06:25:07
语种	英语
国家	国际
学科大类	气候变化
学科子类	气候变化
文献类型	数据集
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/215497
推荐引用方式 GB/T 7714	Sahling,Heiko,Römer,et al. Gas emissions at the continental margin west off Svalbard during R/V Heinche cruise HE387.2014-07-15.https://doi.org/10.1594/PANGAEA.834000.