نتایج جستجو برای: little ice age synchronous period
تعداد نتایج: 1479041 فیلتر نتایج به سال:
Abstract Extending the record of glacier area changes into past improves our understanding climate change impacts. Although analogue maps showing historic extents are abundant, digital outlines from before satellite era sparse as digitisation moraines and trimlines on freely available images is challenging. With now very high-resolution provided by Web Map Services (WMS), new doors open for pre...
Nutrient utilisation and weathering inputs in the Peruvian upwelling region since the Little Ice Age
Large outlet glaciers draining the Greenland Ice Sheet significantly influence overall ice sheet mass balance. Considerable short term (years to decades) retreat and fluctuations in velocity of Jakobshavn Isbræ, western Greenland, illustrate the complex nature by which large outlet glaciers respond to climate change, making predictions of future ice sheet change challenging. To provide a longer...
A 81BO record from Dunde Ice Cap, located in the Qjlian mountains on the northeastern margin of the Tibetan Plateau, has been analyzed and interpreted. With an ice temperature of 7.3°C at a depth of 10 m and -4.7°C at the bottom of the ice cap, and an accumulation rate of400mma· l , the Dunde core has provided interesting results. The upper part of this core, core D-I, can be easily dated by a ...
An ice core extracted from Holtedahlfonna ice cap, western Spitsbergen, record spanning the period 1700–2005, was analyzed for major ions. The leading empirical orthogonal function (EOF) component is correlated with an index of summer melt (log([Na]/[Mg]) from 1850 and shows that almost 50% of the variance can be attributed to seasonal melting since the beginning of the industrial revolution. T...
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