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Recent Articles
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Topic: Greenland
Greenland’s melting glaciers, which plunge into Arctic waters via steep-sided inlets, or fjords, are among the main contributors to global sea-level rise in response to climate change. Gaining a better understanding of how warming ocean water affects these glaciers will help improve predictions of their fate. Such predictions could in turn be used by communities around the world to better prepare for flooding and mitigate coastal ecosystem damage. ![]() Warmer ocean waters are speeding up the rate at which Greenland’s glaciers are melting and calving, or breaking off to form icebergs. This is causing the glaciers to retreat toward land, hastening the loss of ice from Greenland’s Ice Sheet. (NASA/JPL-Caltech) «Read the rest of this article» Sections: Technology | No Comments
NASA Scientists report Warming Climate taking its toll on Greenland, Antarctica Glaciers
Glaciers and ice sheets are far more complex structures than ice cubes. They form when snow accumulates and is compressed into ice by new snow over many years. ![]() NASA scientists traverse Antarctica’s icy landscape, towing scientific instruments and cold-weather gear with them. The team was tasked with collecting ground data to verify the accuracy of measurements made by the IceSat-2 satellite. (NASA) «Read the rest of this article» Sections: Technology | No Comments
NASA study reveals Greenland’s Retreating Glaciers could Impact Local Ecology
These rivers carry nutrients into the ocean, so this reconfiguring has the potential to impact the local ecology as well as the human communities that depend on it. ![]() Greenland appears in this image created using data from the ITS_LIVE project, hosted at NASA’s Jet Propulsion Laboratory. The coloring around the coast of the arctic island shows the speed of outlet glaciers flowing into the ocean. (NASA/JPL-Caltech/USGS) «Read the rest of this article» Sections: Technology | No Comments
NASA, Qatar Partnership to look for Buried Water in Earth’s Deserts
These arid regions receive very little annual precipitation, and the effects of climate change in these ecosystems are poorly understood. A joint effort between NASA and the Qatar Foundation aims to address that – and, in the process, help communities that are being impacted by those changes. ![]() Deserts like the Sahara harbor fresh water aquifers that can be affected by Earth’s changing climate. The OASIS study project seeks to a establish a mission that would find and examine those aquifers. (NASA) «Read the rest of this article» Sections: Technology | No Comments
NASA Study shows Emissions Could Add 15 Inches to 2100 Sea Level Rise
If greenhouse gas emissions continue apace, Greenland and Antarctica’s ice sheets could together contribute more than 15 inches (38 centimeters) of global sea level rise – and that’s beyond the amount that has already been set in motion by Earth’s warming climate. ![]() Ice shelves in Antarctica, such as the Getz Ice Shelf seen here, are sensitive to warming ocean temperatures. Ocean and atmospheric conditions are some of the drivers of ice sheet loss that scientists considered in a new study estimating additional global sea level rise by 2100. (Jeremy Harbeck/NASA) «Read the rest of this article» Sections: Technology | No Comments
NASA Study shows Record Loss of Greenland Ice in 2019
The large loss – 532 billion tons -is a stark reversal of the more moderate rate of melt seen in the previous two years. And it exceeds Greenland’s previous record of 464 billion tons, set in 2012. The record melt will likely raise average global sea level by 1.5 millimeters. Using a hypothetical comparison, all the water combined would cover the entire state of California in more than 4 feet (1.2 meters) of water. ![]() An iceberg in Disko Bay, near Ilulissat, Greenland. The massive Greenland ice sheet shed a record amount of ice in 2019, ending a brief period of more moderate ice loss. (NASA/Saskia Madlener) «Read the rest of this article» Sections: Technology | No Comments
NASA reports Arctic Regions Ice Melts speed up Freshwater Depletion
The impact of melting ice in Greenland and Antarctica on the world’s oceans is well documented. But the largest contributors to sea level rise in the 20th century were melting ice caps and glaciers located in seven other regions: Alaska, the Canadian Arctic Archipelago, the Southern Andes, High Mountain Asia, the Russian Arctic, Iceland and the Norwegian archipelago Svalbard. The five Arctic regions accounted for the greatest share of ice loss. ![]() A small glacier in the Arctic region of Norwegian archipelago Svalbard, as photographed by NASA’s Airborne Tropical Tropopause Experiment (ATTREX). This is one of the seven regions where ice loss is accelerating, causing the depletion of freshwater resources. (NASA/John Sonntag) «Read the rest of this article» Sections: Technology | No Comments
NASA ICESAT Satellites use laser to map Greenland, Antarctica Ice Loss over 16 years
The results provide insights into how the polar ice sheets are changing, demonstrating definitively that small gains of ice in East Antarctica are dwarfed by massive losses in West Antarctica. ![]() The Kangerdlugssup (pictured) and Jakobshavn glaciers in Greenland have lost roughly 14 to 20 feet (4 to 6 meters) of elevation per year over the past 16 years. (NASA/Jim Yungel) «Read the rest of this article» Sections: Technology | No Comments
NASA keeps tabs on Rising Seas, Flooding Mitigation, Disaster Response
But their economies, though 3,400 miles (5,400 kilometers) apart, share a dependence on the sea. The majority of Greenland’s residents rely on the territory’s robust Arctic fishing industry. And in Louisiana, the coasts, ports and wetlands provide the basis for everything from shipping to fishing to tourism. As a result, both locales and the people who live in them are linked by a common environmental thread: melting ice and consequent sea level rise. ![]() The Mississippi River Delta contains vast areas of marshes, swamps and barrier islands – important for wildlife and as protective buffers against storms and hurricanes. Rapid land subsidence due to sediment compaction and dewatering increases the rate of submergence in this system. (K.L. McKee / U.S. Geological Survey) «Read the rest of this article» Sections: Technology | No Comments
NASA Scientists use GRACE, GRACE-FO Satellite Data to examine Ice Loss in Greenland, Antarctica
Led by scientists at NASA’s Jet Propulsion Laboratory and the University of California, Irvine, the study also concludes that Antarctica continues to lose mass, particularly in the Amundsen Sea Embayment and the Antarctic Peninsula on the western part of the continent; however, those losses have been partially offset by gains from increased snowfall in the northeast. ![]() Greenland’s Steenstrup Glacier, with the midmorning sun glinting off the Denmark Strait in the background. The image was taken during a NASA IceBridge airborne survey of the region in 2016. (NASA/Operation IceBridge) «Read the rest of this article» Sections: Technology | No Comments
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