Glacier Fluctuations in the Southern Alps of New Zealand Determined from Snowline Elevations
Glacier Fluctuations in the Southern Alps of New Zealand Determined from Snowline Elevations
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根据雪线高程确定新西兰南阿尔卑斯山的冰川波动
DOI:
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发表时间:
1995
期刊:
影响因子:
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通讯作者:
T. Chinn
中科院分区:
文献类型:
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作者:
T. Chinn
Preliminary analysis of 452 determinations of end-of-summer glacier snowline altitudes (ELAs) made over 17 yr on up to 47 glaciers show good correlation with major climatic events, and conform well with fluctuations of glacier termini when reaction times are taken into consideration. With snowline altitudes used as surrogates for annual mass balance values, there is a recent trend to increased mass balances, i.e. a climate {open_quotes}cooling,{close_quotes} which follows a long period of predominantly glacial recession. Snowline trend surfaces plotted for the Southern Alps of New Zealand show considerable warping with variable departures from the steady-state equilibrium-line altitude each year. The current resurgence of the more active glaciers should continue in the near future. 39 refs., 10 figs., 1 tab.