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1 ημέρα πριν · Composite satellite image of Antarctica (2002) Apollo 4 photograph with Antarctica at top, 1967. Antarctica (/ æ n ˈ t ɑːr k t ɪ k ə / ⓘ) [note 1] is Earth's southernmost and least-populated continent.
2 ημέρες πριν · Antarctica, the world’s southernmost continent, is almost wholly covered by an ice sheet and is about 5.5 million square miles (14.2 million square km) in size. It is divided into East Antarctica (largely composed of a high ice-covered plateau) and West Antarctica (an archipelago of ice-covered mountainous islands).
3 ημέρες πριν · Even in Antarctica, during the peak of its winter, extreme heat pushed temperatures in parts of the continent more than 50°F above the July normal. ... Map of the McMurdo Dry Valleys, Antarctica and (b) ... Satellite imagery and stream discharge measurements showed that the sudden warming wetted the valleys’ soil more than two months after ...
3 ημέρες πριν · In February 2021, satellite imagery captured the formation of another massive iceberg from Brunt’s northern section, and it has since drifted into the Weddell Sea. These monitoring capabilities offer scientists a comprehensive view of the slow but powerful forces shaping Antarctica’s landscape.
4 ημέρες πριν · View the latest status of the ozone layer over the Antarctic, with a focus on the ozone hole. Satellite instruments monitor the ozone layer, and we use their data to create the images that depict the amount of ozone. Click any map image to bring up a new page with a high-resolution image.
5 ημέρες πριν · Data for the maps are from NASA’s GEOS forward processing (GEOS-FP) model, which assimilates meteorological data from satellite, aircraft, and ground-based observing systems. The map below shows potential vorticity—a quantity that describes how air masses are spinning—in the stratosphere on August 5, 2024. Areas of high potential ...
4 ημέρες πριν · Mount Sidley is the tallest volcano in Antarctica, with a summit of 14,058 feet (4,285 meters), and is located on the continent’s Pacific Coast near the Thwaites Glacier. Mount Sidley is a shield volcano and one of five major volcanoes in the 50 mile- (80 km-) long Executive Committee Range in Marie Byrd Land.