Temporal glacier area changes correlated with the El Niño/La Niña Southern Oscillation using satellite imagery
Temporal glacier area changes correlated with the El Niño/La Niña Southern Oscillation using satellite imagery
复制标题
使用卫星图像显示与厄尔尼诺/拉尼娜南方涛动相关的时间冰川面积变化
DOI：
10.3178/hrl.7.18
复制
发表时间：
2013
影响因子：
1.1
通讯作者：
L. Gunawardhana
中科院分区：
文献类型：
--
作者：
Kairi Morizawa;Y. Asaoka;S. Kazama;L. Gunawardhana
我们使用Landsat卫星图像来确定玻利维亚康多里里冰川在1988年至2010年之间的面积变化，发现该地区在此期间减少了41%。此外，冰川退缩和扩张的年际模式分别与厄尔尼诺/拉尼娜-南方涛动（ENSO）的暖期和冷期相吻合。由于冰川在厄尔尼诺事件期间的退缩比在拉尼娜事件期间的扩张更多，因此最终结果是退缩趋势，如果继续下去，这意味着冰川将在2035年完全消失。20世纪后期，ENSO事件发生频率增加，随着气候持续变化，ENSO事件可能会变得更加频繁。因此，迫切需要采取措施，使玻利维亚的水管理适应冰川融水的流失。
We used Landsat satellite images to determine the areal change between 1988 and 2010 of the Condoriri glacier in Bolivia and found that the area decreased by 41% during that period. Moreover, the interannual pattern of recession and expansion of the glacier coincided with warm and cold phases of El Niño/La Niña-Southern Oscillation (ENSO), respectively. Because the glacier recedes more during El Niño events than it expands during La Niña events, the net result is a retreating trend, which, if it continues, means that the glacier will disappear completely by 2035. ENSO frequency increased during the latter part of the 20th century, and ENSO events may become more frequent with continued climate change. Therefore, it is urgent to take measures to adapt Bolivian water management to the loss of glacier meltwater.