2019 was the third year since 2007 to record a volume increase under 2000 km3. Melting picks up pace during the spring as the sun gets stronger, and in September the extent of the ice cover … Data source: Danish Meteorological Institute (DMI). This year the Arctic sea ice volume is showing very impressive growth: As the chart above depicts, Arctic sea ice volume is near a 15-year high, is more than a … Validation is best achieved through a comparison with in situ and satellite-derived ice thickness observations. Sadly, just for a few years we also have March or September available, and thus we normally can’t read the Arctic ice minimum (medio September) from these maps.
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The Arctic sea ice is melting, but global average temperatures are not significant: Cycles of the AMO and other regional phenomena are more impactful. Even without considering other sources of Arctic thickness and/or volume data it is quite clear from the two volume graphs that according to the Danish Meteorological Institue Arctic sea ice volume is significantly lower this year than it was in 2008. There are no true measurements of total ice volume that can be compared to model-derived estimates. Modeled ice thickness and volume The plots show maps with sea ice thickness, and seasonal cycles of the calculated total arctic sea ice volume. Arctic sea ice volume has not fallen in 13 years. According to the Danish Meteorological Institute, Arctic sea ice volume is growing rapidly, normal and the highest in several years. Melting picks up pace during the spring as the sun gets stronger, and in September the extent of the ice cover … Today, the sea-ice concentration (ice cover) is in general well estimated using satellite products, while the sea-ice thickness is poor known. The figures are based on calculations using DMI's operational ocean and sea ice model HYCOM-CICE. Whopping rebound in Arctic sea ice volume. Fig 1. Another month has passed and so here is the updated Arctic sea ice volume graph as calculated by the Pan-Arctic Ice Ocean Modeling and Assimilation System (PIOMAS) at the Polar Science Center: During October there was a slowdown in ice growth, which is also reflected in the PIOMAS numbers. Japanese blogger Kirye, who by now you are all getting to know quite well, plotted the recent Arctic sea ice volume data from the Danish Meteorological Institute (DMI).. Total sea ice extent on the northern hemisphere during the past years, including climate mean; plus/minus 2 standard deviations. The problem of validating sea ice volume It is difficult to validate total Arctic sea ice volume directly. The state of the sea ice is determined by its extent, thickness and volume The ice cover in the Arctic grows throughout the winter, before peaking in March. The Arctic sea ice is melting, but it has melted and re frozen on a substantially greater scale in the distant past / proxy record. One measure is sea-ice extent which, as the name implies, is a measure of coverage of the ocean where ice covers 15% or more of the surface.
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