flooding

Poll: When Will Sea Level Rise to Deadly Levels

Michael Data & Graphics, Interactive, Photo October 1, 2016 Leave a reply

做气候变化和环境议题也有些年头了,理论和模型也了解了不少,但是这个跨世纪的全球大难题最确定的就是诸多的不确定性——比如海平面上升啥时候真的会威胁到我们的海滨城市呢?【点这里看ClimateCentral.org的一系列全球升温两摄氏度和四度的海平面上升对城市影响的系列假想图。】

在举国度假的闲暇,还是一起娱乐一下吧,不想总是那么严肃和忧虑了,看看自己朋友圈里的大伙们是乐观还是悲观占主流吧【纯娱乐,没有正确答案,如果声称掌握正确答案的,可以请Elon Musk的SpaceX过几年发配火星了】:请从四个答案中选择一个你认为最靠谱的,海平面上升会淹没很多海滨城市CBD核心区的年份!

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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.

 

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Floods along the Yangtze 2016, 2011

Michael Animation, Data & Graphics, Photo August 8, 2016 Leave a reply
March 27 vs July 28, 2016 along the Yangtze River

March 27 vs July 28, 2016 along the Yangtze River

以上是一组对比今年3月27日和7月28日长江中游沿岸以及洞庭、鄱阳两大湖水位变化的动图。如果两大湖春季的水位更接近正常的话,恐怕今年汛期的洪灾将更加惨烈。今年的洪灾已经造成了220亿美元的损失,也成为仅次于1998年洪灾的中国第二大最具破坏性的天气灾害事件,也是1980年有记录以来全球(美国以外)第五大最具破坏性的自然灾害事件(下图)。【NASA原文点这里

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GIFs: Wuhan’s Shrinking Lakes

动图组:武汉被吞噬的湖泊

沙湖曾是武汉市仅次于东湖的第二大“城中湖”,2000年以来被房地产开发潮不断蚕食;卫星图显示2000.11.1 - 2.16.2.20

沙湖曾是武汉市仅次于东湖的第二大“城中湖”,2000年以来被房地产开发潮不断蚕食;卫星图显示2000.11.1 – 2016.2.20 【新华社原文

This year’s rainy season and floods have wrecked havoc on the city of Wuhan, which was home to 127 lakes in its urban areas. Now the city has 38 lakes remaining. Even though this many have survived the dramatic urbanization and land reclamation over the past few decades, they have most likely shrunk a great deal. With many new neighborhoods on low-lying lands that used to be lakes, the battle against floods this year is a particularly difficult one. Here below are a couple of examples viewed from space, thanks to Google Earth and those who care to find these images. [Tap on the link in the above image’s caption for original Xinhua post in Chinese language.]

Shahu Lake (or literally translated as sandy lake) used to be the second largest lake after the East Lake in Wuhan City. Since 2000, due to the encroaching real estate development and urbanization, the lake has been divided by a road and surrounded by high-rise buildings (above). Read More

GIF: Floods Seen From Space

Michael Photo May 9, 2016 Leave a reply

Floods can be devastating, and they can be surreal too, seen from space. This below, thanks to NASA Earth Observatory, shows a flood event in 2011 that looks like a giant bulldozer having widened the whole James River, meanwhile smoothing out all the twists and turns along the way.

A tributary of the Missouri River, the James River experienced significant flooding in the spring of 2011. In early June 2011, the river was high enough to fill the river valley near the town of Mitchell, South Dakota.

A tributary of the Missouri River, the James River experienced significant flooding in the spring of 2011. In early June 2011, the river was high enough to fill the river valley near the town of Mitchell, South Dakota.

And here is a scene on Missouri River, also seen from space:

By early June 2011, the Missouri River had risen enough to submerge normally dry land, including some agricultural land, west of Lewis and Clark Lake.

By early June 2011, the Missouri River had risen enough to submerge normally dry land, including some agricultural land, west of Lewis and Clark Lake.


Here are a bunch of floods in China over the years, and the river monsters were pretty horrific, visually:

Flood waters continue to rise on the Amur (Heilongjiang) River and its tributaries in northeast China and southeast Russia. The floods are affecting millions, forcing evacuations, closing ports, and claiming at least 85 lives. The floods are expected to peak in early September.

Flood waters continue to rise on the Amur (Heilongjiang) River and its tributaries in northeast China and southeast Russia. The floods are affecting millions, forcing evacuations, closing ports, and claiming at least 85 lives. The floods are expected to peak in early September.

Summer rains have swollen rivers throughout northeastern China, including the Songhua River. Water levels peaked in Harbin on August 27, 2013, and have remained high. The Songhua River is one of many tributaries of the Amur (Heilongjiang) River, which is experiencing its most severe floods in a century.

Summer rains have swollen rivers throughout northeastern China, including the Songhua River. Water levels peaked in Harbin on August 27, 2013, and have remained high. The Songhua River is one of many tributaries of the Amur (Heilongjiang) River, which is experiencing its most severe floods in a century.

The recent floods followed months of devastating drought, China Daily reported. Prior to the torrential rains, 3.5 million people endured water shortages. Although the rain brought much-needed moisture, it also brought deadly floods and landslides. As of June 28, nearly 100 people had died and about 27,000 homes had been destroyed.

The recent floods followed months of devastating drought, China Daily reported. Prior to the torrential rains, 3.5 million people endured water shortages. Although the rain brought much-needed moisture, it also brought deadly floods and landslides. As of June 28, nearly 100 people had died and about 27,000 homes had been destroyed.