Credit: Jun Inoue (NIPR)
As the climate warms and Arctic sea ice retreats, research vessels and commercial ships are sailing into the Arctic Ocean more and more, but the accuracy and sensitivity of regional weather and marine forecasts for these hazardous waters still lag well behind those of their lower-latitude counterparts, with significant differences between regional models. Direct measurements of atmospheric conditions, such as cloud cover and solar radiation, can help to evaluate and improve these models.
In a new study published in the
Journal of Geophysical Research: Atmospheres, a research team led by the National Institute of Polar Research in Tachikawa, Japan tackled this problem using data collected by the ice-strengthened Japanese Research Vessel
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Arctic sea ice is rapidly diminishing due to global warming, and scientists have found that sea ice dynamics have a big impact on circulation and precipitation patterns in Arctic Alaska, which lies at a climatological crossroads between the Arctic and North Pacific Oceans. Recent studies most of which focus on current trends in the region and on what will happen in the future have shown that circulation patterns in the Arctic and North Pacific Oceans influence one another.
Doctoral candidate Ellie Broadman of Northern Arizona University s School of Earth and Sustainability wanted to learn about this relationship on a longer timescale, so she developed and led a study in Arctic Alaska to investigate it. She is the lead author on a paper detailing her team s findings, Coupled impacts of sea ice variability and North Pacific atmospheric circulation on Holocene hydroclimate in Arctic Alaska, which was recently published in the prestigious journal
Scientists have identified a key nutrient source used by algae living on melting ice surfaces linked to rising sea levels. They discovered that phosphorus containing minerals may be driving ever-larger algal blooms on the Greenland Ice Sheet.
The rate at which ice is disappearing across the planet is speeding up, according to new research.
And the findings also reveal that the Earth lost 28 trillion tonnes of ice between 1994 and 2017 - equivalent to a sheet of ice 100 metres thick covering the whole of the UK.
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IMAGE: A river-fed sedimentary plain in Iceland bears resemblance to what might have fed Mars Gale Crater more than 3 billion years ago. Researchers at Rice University studied rover data on. view more
Credit: Photo by Michael Thorpe
HOUSTON - (Jan. 20, 2021) - Once upon a time, seasons in Gale Crater probably felt something like those in Iceland. But nobody was there to bundle up more than 3 billion years ago.
The ancient Martian crater is the focus of a study by Rice University scientists comparing data from the Curiosity rover to places on Earth where similar geologic formations have experienced weathering in different climates.