GIF

Floods along the Yangtze 2016, 2011

Michael Animation, Data & Graphics, Photo August 8, 2016
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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GIF: Amazon Deforestation & Mountaintop Mining

Michael Data & Graphics, Interactive, Photo May 23, 2016

Another couple of pieces of gem from NASA Earth Observatory’s archive, first about the catastrophic mountaintop mining happening in West Virginia (1984-2015) and the other about deforestation (2000-2012) in the Amazon.

This time-series of images of a surface mine in Boone County, West Virginia, illustrates why this controversial mining method is also called “mountaintop removal.” Based on data from Landsat 5, 7, and 8, these natural-color images document the growth of the Hobet mine as it moves from ridge to ridge between 1984 to 2015.

This time-series of images of a surface mine in Boone County, West Virginia, illustrates why this controversial mining method is also called “mountaintop removal.” Based on data from Landsat 5, 7, and 8, these natural-color images document the growth of the Hobet mine as it moves from ridge to ridge between 1984 to 2015. See original post for animation of a lot more images.

 

By the start of this satellite time series from the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite, the frontier had reached the remote northwest corner of Rondônia. Intact forest is deep green, while cleared areas are tan (bare ground) or light green (crops, pasture, or occasionally, second-growth forest). Over the span of 12 years, roads and clearings pushed west-northwest from Buritis toward the Jaciparaná River. The deforested area along the road into Nova Mamoré expanded north-northeast all the way to the BR-346 highway.

By the start of this satellite time series from the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite, the frontier had reached the remote northwest corner of Rondônia. Intact forest is deep green, while cleared areas are tan (bare ground) or light green (crops, pasture, or occasionally, second-growth forest). Over the span of 12 years (2000-2012), roads and clearings pushed west-northwest from Buritis toward the Jaciparaná River. The deforested area along the road into Nova Mamoré expanded north-northeast all the way to the BR-346 highway. See original post for animation and more images.

The state of Rondônia in western Brazil — once home to 208,000 square kilometers of forest (about 51.4 million acres), an area slightly smaller than the state of Kansas — has become one of the most deforested parts of the Amazon. In the past three decades, clearing and degradation of the state’s forests have been rapid: 4,200 square kilometers cleared by 1978; 30,000 by 1988; and 53,300 by 1998. By 2003, an estimated 67,764 square kilometers of rainforest—an area larger than the state of West Virginia—had been cleared.

GIF: Time Traveling in China by Dheera Venkatraman

Michael Data & Graphics, Interactive, Photo May 18, 2016

Really amazed by this MIT scientist/photographer who has taken this to an artistic level, documenting the dramatic changes over the landscapes of many Chinese cities. There are more on his site here.

Pudong, Shanghai, circa 1920-2009

Pudong, Shanghai, circa 1920-2009, (Unknown, Dheera Venkatraman)

Shanghai via satellite, 1984-2012, (Google Earth)

Shanghai via satellite, 1984-2012, (Google Earth)

 

Lanzhou, China, circa 1930-2016,

Lanzhou, China, circa 1930-2016, (Unknown, Dheera Venkatraman)

 

Chengdu, China, 1994-2016, (Unknown, Dheera Venkatraman)

Chengdu, China, 1994-2016, (Unknown, Dheera Venkatraman)

 

Guangzhou, China, circa 1970-2016, (Unknown, Dheera Venkatraman)

Guangzhou, China, circa 1970-2016, (Unknown, Dheera Venkatraman)

 

Yibin, China, circa 1940-2016, (Unknown, Dheera Venkatraman)

Yibin, China, circa 1940-2016, (Unknown, Dheera Venkatraman)

 

Guiyang, China, circa 1920-2016, (Unknown, Dheera Venkatraman)

Guiyang, China, circa 1920-2016, (Unknown, Dheera Venkatraman)

Original post on ChinaFile.com