We realised that huge areas of the snowpack in the Sierra went down to 15 per cent of today‘s values, says Michael Dettinger, a research hydrologist at the Scripps Institution of Oceanography in La Jolla, California.
We realised that huge areas of the snowpack in the Sierra went down to 15 per cent of today‘s values, says Michael Dettinger, a research hydrologist at the Scripps Institution of Oceanography in La Jolla, California.
加利福尼亚拉霍亚市斯克里普斯海洋研究所的一位水文学家迈克尔·德廷杰说，我们发现，在谢拉地区积雪场的大部分面积已在目前的基础上缩小了15％。