New Zealand Local Weather Forum
Weather Discussion => International => Topic started by: Mark on January 10, 2022, 10:23:13 PM
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…DRIVES NH SNOW MASS 450 GIGATONS ABOVE 1982-2012 AVERAGE
All this American powder is also having a positive impact on the Northern Hemisphere’s Total Snow Mass chart.
The latest data point (from Jan 4) shows at sizable jump in snow mass.
Totals are now approaching 2,500 Gigatons — or a whopping 400 Gigatons above the 1982-2012 average:
[FMI]
Also worth mentioning, Arctic Sea Ice has been on something of tear these past few months.
According to data from the National Snow & Ice Data Center (NSIDC), extent has not been this impressive since 2004–and it’s accelerating, too:
[NSIDC]
Furthermore, Greenland has seen an uptick of SMB in recent days, following a December hiatus…
https://electroverse.net/record-snow-sweeps-us-drives-nh-snow-450-gigatons-above-avg-scandinavia-suffered-cold-dec/
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Data from the Danish Meteorological Institute (DMI) shows that Greenland ice melt slowed significantly during the past decade, and that the trend has now swung to one of growth — media tizzies of ‘mass ice loss’ are wildly unfounded.
The Greenland ice sheet has been faring increasingly well in recent years. Since 2016, a sharp uptick in the Surface Mass Balance (SMB) –a calculation used to determine the ‘health’ of a glacier– has been detected, and daily/monthly records have routinely been broken.
Decades of reliable satellite measurements have allowed trends to be detected, and while it is true that the world’s largest island lost mass from around 1995 to 2012, that trend of loss has now reversed, and like the gradual turning of a vast ship, from 2010 to 2015 Greenland’s SMB changed course and has been on an upward trajectory ever since.
https://electroverse.net/greenland-gains-record-10-gts-of-snow-and-ice-northern-hemisphere-total-snow-mass-increases/