Flooding: Yangtze Vs. Ganges

Michael Animation, Data & Graphics, Photo August 24, 2016 Leave a reply
ganges_tmo_2015-2016

Ganges River near Patna on August 10, 2015 and August 21, 2016, via NASA

中印看来是两个难兄难弟,两个备受洪水肆虐的文明古国。不过,今年的洪水季,印度恒河的洪水看上去要来得更猛烈些,这场景才更叫看海模式吧!如下图2015年8月与2016年8月的对比动图【NASA原文点这里】:

In August 2016, heavy monsoon rains pushed the Ganges and other rivers in eastern and central India to the breaking point.These images use a combination of infrared and visible light to increase contrast between water and land. Water is blue. Vegetation is green. Notice that the water is a slightly lighter shade of blue in the lower image due to all the suspended sediment in the water.

 

March 27 vs July 28, 2016 along the Yangtze River

March 27 vs July 28, 2016 along the Yangtze River

再看看NASA早前发布的2016年3月与7月的对比组图,看上去长江沿岸(两大湖区除外)水道依然纤细苗条,前后差别不是那么惊天动地。当然了,这些卫星图的尺度过大,区区几个像素的变化在地面上都可能是要命的灾难。【NASA原文点这里

The trouble began in June, when seasonal monsoon rains became torrential and fell day after day after day. Daily rainfall records were broken in several cities, and many areas recorded more than 200 millimeters (8 inches) of rain in just 24 hours.

 


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