气候变化领域集成服务门户(CCPortal): Glacier loss on Kilimanjaro continues unabated

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DOI	10.1073/pnas.0906029106
	Glacier loss on Kilimanjaro continues unabated
	Thompson L.G.; Brechera H.H.; Mosley-Thompson E.; Hardy D.R.; Mark B.G.
发表日期	2009
ISSN	0027-8424
起始页码	19770
结束页码	19775
卷号	106 期号:47
英文摘要	The dramatic loss of Kilimanjaro's ice cover has attracted global attention. The three remaining ice fields on the plateau and the slopes are both shrinking laterally and rapidly thinning. Summit ice cover (areal extent) decreased ≈1% per year from 1912 to 1953 and ≈2.5% per year from 1989 to 2007. Of the ice cover present in 1912, 85% has disappeared and 26% of that present in 2000 is now gone. From 2000 to 2007 thinning (surface lowering) at the summits of the Northern and Southern Ice Fields was ≈1.9 and ≈5.1 m, respectively, which based on ice thicknesses at the summit drill sites in 2000 represents a thinning of ≈3.6% and ≈24%, respectively. Furtwängler Glacier thinned ≈50% at the drill site between 2000 and 2009. Ice volume changes (2000-2007) calculated for two ice fields reveal that nearly equivalent ice volumes are now being lost to thinning and lateral shrinking. The relative importance of different climatological drivers remains an area of active inquiry, yet several points bear consideration. Kilimanjaro's ice loss is contemporaneous with widespread glacier retreat in mid to low latitudes. The Northern Ice Field has persisted at least 11,700 years and survived a widespread drought ≈4,200 years ago that lasted ≈300 years. We present additional evidence that the combination of processes driving the current shrinking and thinning of Kilimanjaro's ice fields is unique within an 11,700-year perspective. If current climatological conditions are sustained, the ice fields atop Kilimanjaro and on its flanks will likely disappear within several decades.
英文关键词	Climate change; Climatology; Glacier retreat; Ice cores; Paleoclimate
语种	英语
scopus关键词	Africa; article; climate change; deglaciation; ice cover; meteorological phenomena; paleoclimate; photography; priority journal; Africa; Altitude; Climate; Environmental Monitoring; Greenhouse Effect; Ice Cover; Satellite Communications
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/159161
作者单位	Thompson, L.G., Byrd Polar Research Center, Ohio State University, 108 Scott Hall, 1090 Carmack Road, Columbus, OH 43210, United States, School of Earth Sciences, Ohio State University, 125 South Oval Mall, Columbus, OH 43210, United States; Brechera, H.H., Byrd Polar Research Center, Ohio State University, 108 Scott Hall, 1090 Carmack Road, Columbus, OH 43210, United States; Mosley-Thompson, E., Byrd Polar Research Center, Ohio State University, 108 Scott Hall, 1090 Carmack Road, Columbus, OH 43210, United States, Department of Geography, Ohio State University, 154 North Oval Mall, Columbus, OH 43210, United States; Hardy, D.R., Department of Geosciences, University of Massachusetts, 236 Hasbrouck, Amherst, MA 01003, United States; Mark, B.G., Byrd Polar Research Center, Ohio State University, 108 Scott Hall, 1090 Carmack Road, Columbus, OH 43210, United States, Department of Geography, Ohio State University, 154 North Oval Mall, Columbus, OH 43210, United States
推荐引用方式 GB/T 7714	Thompson L.G.,Brechera H.H.,Mosley-Thompson E.,et al. Glacier loss on Kilimanjaro continues unabated[J],2009,106(47).
APA	Thompson L.G.,Brechera H.H.,Mosley-Thompson E.,Hardy D.R.,&Mark B.G..(2009).Glacier loss on Kilimanjaro continues unabated.Proceedings of the National Academy of Sciences of the United States of America,106(47).
MLA	Thompson L.G.,et al."Glacier loss on Kilimanjaro continues unabated".Proceedings of the National Academy of Sciences of the United States of America 106.47(2009).