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Rescooped by Skuuppilehdet from Geography for All!
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Changes in Three Gorges Dam

NASA's animation of China's Three Gorges Dam construction over the years.

Via Trisha Klancar
Benjamin Jackson's curator insight, November 9, 2015 5:40 PM

The impact of the Three Gorges Dam on the residents upstream is amazing. I cannot imagine anything like this happening in the US, mostly because of the impact on the people both upstream and downstream. Ecological damage from this dam may not phase the Chinese government, but I think any North American or European government would shudder at the thought of the backlash among their citizens this would create.

Matt Ramsdell's curator insight, December 14, 2015 9:27 PM

Three Gorges damn in China is the largest dam ever constructed. This was created to save on power by creating hydroelectric power for the people of the land. One of the issues with this was the the flooding of the land up streams displacing millions of people. It created a larger up stream area and very small down stream. A lot of the people that lived up stream had to be relocated further inland and faced changing climatif weather. The banks of the river are carved out between what seems like mountainous regions so as you move more uphill the weather and temperature will be a whole new category of life (Depending on how far you relocated).

Stevie-Rae Wood's curator insight, December 9, 2018 6:09 PM
From the animation that NASA has created of the construction of the Three Gorges Dam it is apparent that land has been lost. The Three Gorges Dam was created to generate more energy for Chinas growing economy. It is known as the largest hydroelectric project ever costing around 40 billion dollars and requiring 20,000 workers. There is a good and bad side to the creation of this dam. It has helped Chinas economy grow however to the expense of the people that were displaced because the dam took away land as we can see In the animation. It also effected people downstream negatively as we can see as well because there water supply was depleted. Like most things that take place today the people that benefit from something usually live far away from the problem while those that live closest pay the more costly price.
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40 years of human activities you can see from space

Satellites have been watching us for 40 years. Here's what their images reveal.

Via mrhill
Ambre Cooper's curator insight, June 25, 2015 4:04 PM

This is a cool little video. It even shows the level of Aral Sea we read about.

Hamdou Wane's curator insight, June 29, 2015 7:55 AM

Satellites have been watching us for 40 years. Here's what their images reveal

Alex Smiga's curator insight, August 6, 2017 8:45 AM
Seth Dixon's insight: 
This video is simple entry point into the various applications of remote sensing as well as various human and environmental interactions. This video highlights 5 examples: 
 1. Deforestation (Brazil) 
2. Water Use (Aral Sea) 
3. Urban Sprawl (Las Vegas) 
4. Energy (Coal in Wyoming) 
5. Climate Change (Ice Shelf in Antarctica)
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What Does Earth Look Like?

Courtney Barrowman's curator insight, August 27, 2014 12:37 PM

Unit 1

MsPerry's curator insight, September 1, 2014 9:51 AM

APHG-Unit 1

Alex Smiga's curator insight, September 7, 2015 4:29 PM
Seth Dixon's insight:

This video covers various topics important to mapping and satellite imagery (and alesson from an APHG teacher on how to use this video with other resources).  There is so much more to the world and space than what we can see see.  Chromoscope, referenced in the video, simulates other forms of energy on the electromagnetic spectrum besides just visible light.  This type of information is at the core of the science behind all of our satellite imagery.  This video also covers many map projection issues and highlights online resources to understand map distortion including:

Google’s Mercator Map PuzzleJason Davies’ interactive map projection websiteInteractive Gnomonic Projectionand the military's live rendering of what the Earth looks like right now.  
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Lakes On A Glacier

"How deep is that icy blue water on Greenland's ice sheet? Dr. Allen Pope, of the National Snow and Ice Data Center, is using data from the NASA/USGS Landsat 8 satellite to find out. In this video, Dr. Pope shares what he sees when he looks at a Landsat image of the Greenland ice sheet just south of the Jakobshavn Glacier.

Because the lakes are darker than the ice around them, they absorb more energy from the sun. A little bit of melt concentrates in one place, and then melts more, establishing a feedback mechanism accelerating the growth of the lake. When the lakes get big enough they can force open fractures that then drill all the way down to the bed of the glacier, transporting this water to the base where it can temporarily speed up the flow of the ice."


Tags: physical, geomorphology, landforms, erosion, climate change, Greenland, remote sensing, geospatial.


Via Mike Busarello's Digital Storybooks
Courtney Barrowman's curator insight, September 8, 2015 1:06 PM

unit 1 and summer read

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A Landsat Flyby

"The Landsat program is the longest continuous global record of the Earth's surface, and continues to deliver both visually stunning and scientifically valuable images of our planet. This short video (download here) highlights Landsat's many benefits to society."

 

Tags: remote sensing, geospatial, unit 1 GeoPrinciples.


Via Mike Busarello's Digital Storybooks
Stephen Zimmett's curator insight, October 13, 2014 1:00 PM

another great bit of info from Seth

GTANSW & ACT's curator insight, October 19, 2014 7:34 PM

Environmental change at a variety of scales