NASA Ice Profile picture
6 Apr, 6 tweets, 4 min read
These images may look otherworldly, but they don’t show icy exoplanets. These gorgeous photos of Earth’s polar ice come from NASA's Operation #IceBridge—and while the mission officially ended last week, you can still explore more high-def images @nsidc: nsidc.org/the-drift/data…
Summer melting exposes ice layers thousands of years old along the edge of Humboldt Glacier in northwest Greenland. Glaciers consist of snow that has been transformed into thick ice layers and flowed downhill, where it’s often exposed at the edge.
An iceberg surrounded by sea ice floes off the coast of Wilkes Land, East Antarctica. Operation #IceBridge data helps scientists study the height, thickness and topography of sea ice in the polar seas. Icebergs calve off land ice, and sea ice forms by freezing ocean water.
The turquoise waters of a glacial river sculpt the surface of 79N Glacier in northeastern Greenland. Rivers and lakes formed by summer melting transport massive amounts of water on, within, and under the ice sheet.
The shores of a refreezing lake on the surface of Zachariæ Isstrøm in northeast Greenland. A reflection from NASA’s Airborne Topographic Mapper laser altimeter is seen as a pale green dot on the top left corner of the image.
Ridged sea ice floes in Fram Strait between Greenland and Svalbard. Operation #IceBridge officially came to an end recently, but its legacy will live through the hundreds of terabytes of data collected since 2009.

• • •

Missing some Tweet in this thread? You can try to force a refresh
 

Keep Current with NASA Ice

NASA Ice Profile picture

Stay in touch and get notified when new unrolls are available from this author!

Read all threads

This Thread may be Removed Anytime!

PDF

Twitter may remove this content at anytime! Save it as PDF for later use!

Try unrolling a thread yourself!

how to unroll video
  1. Follow @ThreadReaderApp to mention us!

  2. From a Twitter thread mention us with a keyword "unroll"
@threadreaderapp unroll

Practice here first or read more on our help page!

More from @NASA_ICE

5 Apr
With data from a rare expedition to Greenland, researchers are shedding more light into the complex subglacial processes that control how fast glaciers slide toward the ocean and contribute to sea level rise. go.nasa.gov/2PY0oCG
Researchers camped on the surface of Russell Glacier to study how its sliding velocity changed in response to meltwater that drains down to the bottom of the ice
At the edge of the ice sheet, where glaciers melt constantly, meltwater rushes everywhere through an intricate system of lakes and streams. Some of those streams thunder off into sinkhole-like structures called moulins, which funnel water downwards.
Read 5 tweets

Did Thread Reader help you today?

Support us! We are indie developers!


This site is made by just two indie developers on a laptop doing marketing, support and development! Read more about the story.

Become a Premium Member ($3/month or $30/year) and get exclusive features!

Become Premium

Too expensive? Make a small donation by buying us coffee ($5) or help with server cost ($10)

Donate via Paypal Become our Patreon

Thank you for your support!

Follow Us on Twitter!