Wednesday , March 3 2021

New analyzes have detected warming and melting complexity in Antarctica [Report]



In a published study Changing the natural climateToday's website, scientists come up with new discoveries to emphasize the multifaceted dynamics of the different Antarctic surfaces. Columbia University Lamont-Doherty Earth Observatory, Cooperative Institute for Environmental Sciences Research at the University of Columbia and Rowan University.


Antarctica is often thought to be cold, tall, and dry, all of which is true of the Earth's largest layer of ice, currently rising to about 58 meters above sea level. However, recent research shows that in the warming-up, more surfaces on the Antarctic ice surface are melting. In the lakes that are found in this new water, it is moving in the rivers or like a sponge that absorbs the spine around it, it has tremendous effects on the sea level from around the world.

Today, Antarctica loses most ice masses from the ocean to the bottom and from the iceberg rupture. But recent research has shown that this may not always be the case. While rising global temperatures, Antarctica will save the loss of ice below, as it is a warming environment. Indeed, recent modeling work has shown that it is a warmer atmosphere, leading the main contributions of Antarctica to boost the sea throughout this century. This work has been intensifying over the last decades in the Antarctic peninsula, where more ice shelves have been broken to make the air warmer. This melting has created huge lakes that cause ruptures and fractures on the shelf of ice. When this displacement occurs, the Antarctic inland ice reaches the ocean's acceleration.

However, according to the understanding of the melting of the Antarctic production, the authors also demonstrate that the warming environment must be taken into account; Scale local winds and feedback can play a greater role in driving melts. For example, this hot atmosphere can cause more snowfall, and perhaps even contradictively, melting can not be eliminated, which at the same time creates more grass-shaped layers to absorb water absorption.

It is a critical problem that everyone needs to understand after the waste. Science encompasses the views of Greenland, the current surface area is much larger. For example, in Greenland, melting melts through the snow and enters the bottom, forming large aquifers. Antarctic ice shelves can put an end to future ice stability. However, the Antarctic ice shelves are not the only things that we will be worried about in the future. If they have sufficient surface area of ​​Antarctica, some parts of the water will be placed on the ice sheet and the ice flow will affect the ocean, much of Greenland's ice sheet.

In the end, as the authors say, the increasingly complex solutions that respond to Antarctic climate change have created new questions and, necessarily, multidisciplinary and international efforts have been urgently needed. Today, observations are needed on ground and in space, and it is essential that the ice and climate models represent different processes that cause Antarctic melting and hydrology. Because Antarctica's potential changes its global level of maritime, there are deep concerns about the need for a great scientific concern.

More information:
Robin E. Bell et al. Antarctic surface hydrology and the mass of ice sheets, Changing the natural climate (2018). DOI: 10.1038 / s41558-018-0326-3

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In a published study Changing the natural climateToday's website, scientists come up with new discoveries to emphasize the multifaceted dynamics of the different Antarctic surfaces. Columbia University Lamont-Doherty Earth Observatory, Cooperative Institute for Environmental Sciences Research at the University of Columbia and Rowan University.

Antarctica is often thought to be cold, tall, and dry, all of which is true of the Earth's largest layer of ice, currently rising to about 58 meters above sea level. However, recent research shows that in the warming-up, more surfaces on the Antarctic ice surface are melting. In the lakes that are found in this new water, it is moving in the rivers or like a sponge that absorbs the spine around it, it has tremendous effects on the sea level from around the world.

Today, Antarctica loses most ice masses from the ocean to the bottom and from the iceberg rupture. But recent research has shown that this may not always be the case. While rising global temperatures, Antarctica will save the loss of ice below, as it is a warming environment. Indeed, recent modeling work has shown that it is a warmer atmosphere, leading the main contributions of Antarctica to boost the sea throughout this century. This work has been intensifying over the last decades in the Antarctic peninsula, where more ice shelves have been broken to make the air warmer. This melting has created huge lakes that cause ruptures and fractures on the shelf of ice. When this displacement occurs, the Antarctic inland ice reaches the ocean's acceleration.

However, according to the understanding of the melting of the Antarctic production, the authors also demonstrate that the warming environment must be taken into account; Scale local winds and feedback can play a greater role in driving melts. For example, this hot atmosphere can cause more snowfall, and perhaps even contradictively, melting can not be eliminated, which at the same time creates more grass-shaped layers to absorb water absorption.

It is a critical problem that everyone needs to understand after the waste. Science encompasses the views of Greenland, the current surface area is much larger. For example, in Greenland, melting melts through the snow and enters the bottom, forming large aquifers. Antarctic ice shelves can put an end to future ice stability. However, the Antarctic ice shelves are not the only things that we will be worried about in the future. If they have sufficient surface area of ​​Antarctica, some parts of the water will be placed on the ice sheet and the ice flow will affect the ocean, much of Greenland's ice sheet.

In the end, as the authors say, the increasingly complex solutions that respond to Antarctic climate change have created new questions and, necessarily, multidisciplinary and international efforts have been urgently needed. Today, observations are needed on ground and in space, and it is essential that the ice and climate models represent different processes that cause Antarctic melting and hydrology. Because Antarctica's potential changes its global level of maritime, there are deep concerns about the need for a great scientific concern.

More information:
Robin E. Bell et al. Antarctic surface hydrology and the mass of ice sheets, Changing the natural climate (2018). DOI: 10.1038 / s41558-018-0326-3

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