3 ms·

Some interesting links: Beijing and Shenzhen's rapid urbanization: https://earthengine.google.com/timelapse#v=39.90419,116.40739,9.999,latLng&t=3.3&ps=50&bt=19

Some interesting links: Beijing and Shenzhen's rapid urbanization: https://earthengine.google.com/timelapse#v=39.90419,116.40739,9.999,latLng&t=3.3&ps=50&bt=19840101&et=20181231&startDwell=0&endDwell=0 https://earthengine.google.com/timelapse#v=39.90419,116.4073... Deforestation in Brazil: https://earthengine.google.com/timelapse#v=-9.27665,-58.51513,5.098,latLng&t=3.42&ps=50&bt=19840101&et=20181231&startDwell=0&endDwell=0 https://earthengine.google.com/timelapse#v=-9.27665,-58.5151...

floatrock 6y ago
Vegas is a really good one in the US since you can see it gobbling up the desert: https://earthengine.google.com/timelapse#v=36.16451,-115.21782,9.737,latLng&t=1.52&ps=50&bt=19840101&et=20181231&startDwell=0&endDwell=0 https://earthengine.google.com/timelapse#v=36.16451,-115.217...
- vnglst 6y ago
  And also that big lake next to it rapidly disappearing. Isn’t that something to worry about?
  - X6S1x6Okd1st 6y ago
    Long term probably, but likely more because of decreased access to snow melt & increased evaporation rather than increased demand. > Changing rainfall patterns, climate variability, high levels of evaporation, reduced snow melt runoff, and current water use patterns are putting pressure on water management resources at Lake Mead as the population relying on it for water, and the Hoover Dam for electricity, continues to increase. To lower the minimum lake level necessary to generate electricity from 1,050 feet (320 m) to 950 feet (290 m), Hoover Dam was retrofitted with wide-head turbines, designed to work efficiently with less flow in 2015 and 2016.[40] If water levels continue to drop, Hoover Dam would cease generating electricity when the water level falls below 950 feet (290 m) and the lake would stabilize at a level of 895 feet (273 m) when the water reaches the lowest water outlet of the dam.[41] In order to ensure that the city of Las Vegas will continue to be able to draw its drinking water from Lake Mead, nearly $1.5 billion was spent on building a new water intake tunnel in the middle of the lake at the elevation of 860 feet (260 m).[42][43] The 3-mile (4.8 km) tunnel took seven years to build under the lake and was put into operation in late 2015. https://en.wikipedia.org/wiki/Lake_Mead#Drought_and_water_usage_issues https://en.wikipedia.org/wiki/Lake_Mead#Drought_and_water_us... Up stream releases 10,150,000 ML per year, Vegas recently upgraded the capacity to consume up to 1,244,000 ML per year. https://www.waterworld.com/drinking-water/distribution/article/14068676/las-vegas-isnt-gambling-with-water-supply https://www.waterworld.com/drinking-water/distribution/artic... As per usual the capacity of natural systems is much higher than the first order effects from people. It's only when we look at second and third order effects or cumulative effects that we start to see real anthropocentric effects
whywhywhywhy 6y ago
Chinese satellite calibration marker: https://earthengine.google.com/timelapse#v=40.44355,93.719,11.573,latLng&t=1.87&ps=50&bt=19840101&et=20181231&startDwell=0&endDwell=0 https://earthengine.google.com/timelapse#v=40.44355,93.719,1... Three Gorges Dam: https://earthengine.google.com/timelapse#v=30.89428,110.73344,9.533,latLng&t=0.99&ps=50&bt=19840101&et=20181231&startDwell=0&endDwell=0 https://earthengine.google.com/timelapse#v=30.89428,110.7334...
- trishmapow2 6y ago
  More information on satellite calibration markers for those curious like me: https://www.livescience.com/17052-mysterious-symbols-china-desert-spy-satellite-targets-expert.html https://www.livescience.com/17052-mysterious-symbols-china-d... US version: https://en.m.wikipedia.org/wiki/Corona_Satellite_Calibration_Targets https://en.m.wikipedia.org/wiki/Corona_Satellite_Calibration...
  - londons_explore 6y ago
    The US marker makes sense - it allows checking all alignment angles, focus, scale, and various spacial frequency response parameters to be measured. All in perhaps the simplest possible shape. The Chinese one on the other hand, isn't so useful for any of that. All the lines are the same thickness, and there are no smaller features for fine calibration or measurements. For just calibration, it's far bigger and more complex than necessary.
jansan 6y ago
Opencast coal mining in the eastern part of Germany: https://earthengine.google.com/timelapse#v=51.81287,14.47542,9.713,latLng&t=0.03&ps=50&bt=19840101&et=20181231&startDwell=0&endDwell=0 https://earthengine.google.com/timelapse#v=51.81287,14.47542...
- riedel 6y ago
  Same in Western Germany: https://earthengine.google.com/timelapse#v=50.95643,6.43355,10.215,latLng&t=0.03&ps=50&bt=19840101&et=20181231&startDwell=0&endDwell=0 https://earthengine.google.com/timelapse#v=50.95643,6.43355,...
robertk 6y ago
The second link is the same as the first?

floatrock 6y ago

Vegas is a really good one in the US since you can see it gobbling up the desert: https://earthengine.google.com/timelapse#v=36.16451,-115.21782,9.737,latLng&t=1.52&ps=50&bt=19840101&et=20181231&startDwell=0&endDwell=0 https://earthengine.google.com/timelapse#v=36.16451,-115.217...

vnglst 6y ago
And also that big lake next to it rapidly disappearing. Isn’t that something to worry about?
- X6S1x6Okd1st 6y ago
  Long term probably, but likely more because of decreased access to snow melt & increased evaporation rather than increased demand. > Changing rainfall patterns, climate variability, high levels of evaporation, reduced snow melt runoff, and current water use patterns are putting pressure on water management resources at Lake Mead as the population relying on it for water, and the Hoover Dam for electricity, continues to increase. To lower the minimum lake level necessary to generate electricity from 1,050 feet (320 m) to 950 feet (290 m), Hoover Dam was retrofitted with wide-head turbines, designed to work efficiently with less flow in 2015 and 2016.[40] If water levels continue to drop, Hoover Dam would cease generating electricity when the water level falls below 950 feet (290 m) and the lake would stabilize at a level of 895 feet (273 m) when the water reaches the lowest water outlet of the dam.[41] In order to ensure that the city of Las Vegas will continue to be able to draw its drinking water from Lake Mead, nearly $1.5 billion was spent on building a new water intake tunnel in the middle of the lake at the elevation of 860 feet (260 m).[42][43] The 3-mile (4.8 km) tunnel took seven years to build under the lake and was put into operation in late 2015. https://en.wikipedia.org/wiki/Lake_Mead#Drought_and_water_usage_issues https://en.wikipedia.org/wiki/Lake_Mead#Drought_and_water_us... Up stream releases 10,150,000 ML per year, Vegas recently upgraded the capacity to consume up to 1,244,000 ML per year. https://www.waterworld.com/drinking-water/distribution/article/14068676/las-vegas-isnt-gambling-with-water-supply https://www.waterworld.com/drinking-water/distribution/artic... As per usual the capacity of natural systems is much higher than the first order effects from people. It's only when we look at second and third order effects or cumulative effects that we start to see real anthropocentric effects

whywhywhywhy 6y ago

Chinese satellite calibration marker: https://earthengine.google.com/timelapse#v=40.44355,93.719,11.573,latLng&t=1.87&ps=50&bt=19840101&et=20181231&startDwell=0&endDwell=0 https://earthengine.google.com/timelapse#v=40.44355,93.719,1... Three Gorges Dam: https://earthengine.google.com/timelapse#v=30.89428,110.73344,9.533,latLng&t=0.99&ps=50&bt=19840101&et=20181231&startDwell=0&endDwell=0 https://earthengine.google.com/timelapse#v=30.89428,110.7334...

trishmapow2 6y ago
More information on satellite calibration markers for those curious like me: https://www.livescience.com/17052-mysterious-symbols-china-desert-spy-satellite-targets-expert.html https://www.livescience.com/17052-mysterious-symbols-china-d... US version: https://en.m.wikipedia.org/wiki/Corona_Satellite_Calibration_Targets https://en.m.wikipedia.org/wiki/Corona_Satellite_Calibration...
- londons_explore 6y ago
  The US marker makes sense - it allows checking all alignment angles, focus, scale, and various spacial frequency response parameters to be measured. All in perhaps the simplest possible shape. The Chinese one on the other hand, isn't so useful for any of that. All the lines are the same thickness, and there are no smaller features for fine calibration or measurements. For just calibration, it's far bigger and more complex than necessary.

jansan 6y ago

Opencast coal mining in the eastern part of Germany: https://earthengine.google.com/timelapse#v=51.81287,14.47542,9.713,latLng&t=0.03&ps=50&bt=19840101&et=20181231&startDwell=0&endDwell=0 https://earthengine.google.com/timelapse#v=51.81287,14.47542...

riedel 6y ago
Same in Western Germany: https://earthengine.google.com/timelapse#v=50.95643,6.43355,10.215,latLng&t=0.03&ps=50&bt=19840101&et=20181231&startDwell=0&endDwell=0 https://earthengine.google.com/timelapse#v=50.95643,6.43355,...

robertk 6y ago

The second link is the same as the first?