Man-made

Taking a Measure of Sea Level Rise: Ocean Altimetry
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Taking a Measure of Sea Level Rise: Ocean Altimetry

The ocean is lumpy and sloshes around its basins for natural reasons. But it is also rising, slowly and steadily.

Published Nov 5, 2020

Image of the Day Water Unique Imagery Remote Sensing

Taking a Measure of Sea Level Rise: Land Motion
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Taking a Measure of Sea Level Rise: Land Motion

Earth’s surface may seem motionless most of the time, but an array of measurements show that natural and human-caused processes cause coastal land to rise and fall.

Published Nov 5, 2020

Image of the Day Water Unique Imagery Snow and Ice Remote Sensing

Taking a Measure of Sea Level Rise: Ice Height
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Taking a Measure of Sea Level Rise: Ice Height

Scientists project ice losses from the Greenland and Antarctic Ice Sheets will play a large part in sea level rise in the upcoming century.

Published Nov 5, 2020

Image of the Day Unique Imagery Snow and Ice Remote Sensing

Taking a Measure of Sea Level Rise: Gravimetry
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Taking a Measure of Sea Level Rise: Gravimetry

Scientists measure ice’s gravitational pull on a pair of satellites, allowing them to estimate ice loss and its contribution to sea level rise.

Published Nov 5, 2020

Image of the Day Unique Imagery Snow and Ice Remote Sensing

Nitrogen Dioxide Levels Rebound in China
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Nitrogen Dioxide Levels Rebound in China

With most lockdowns ending and economic activity resuming, levels of the air pollutant have returned to near normal for this time of year.

Published May 22, 2020

Image of the Day Atmosphere Life Dust and Haze Human Presence Remote Sensing