This study presents an analysis of the sea-ice area time series for the East Greenland Sea for the period January 2003 – December 2013. The data used are a subset of the Arctic Sea Ice Concentration data set derived from the observations of the passive microwave sensors AMSR-E and AMSR-2 and produced, on a daily basis, by the Inst. of Environ. Physics of the University of Bremen. The area of interest goes, approximately, from 57◦N to 84◦N and from 53◦W to 15◦E. On the basis of previous studies, the parameter Sea Ice Area as the sum of all pixels whose sea ice concentration is above 70%, was introduced for measuring sea-ice extent. A first survey of the Greenland Sea data set showed a large anomaly in year 2012; this anomaly, clearly linked with the transition period from AMSR-E to AMSR-2 when re-sampled SSM/I data were used, was partially corrected with a linear regression procedure. The correlation between monthly mean Sea Ice Area and other geophysical parameters, like air temperature, surface wind and cloud cover, was further investigated. High anti-correlation coefficients between air temperature, at sea level and in five different tropospheric layers, and observed ice cover is confirmed. Our analysis shows that the strong decline of Arctic sea-ice area in the last 10 years is not observed in the East Greenland Sea; this implies that large reductions have occurred in the Canadian and Russian Arctic. This result confirms a hypothesis recently postulated to explain the different sea-ice decline in the Arctic and Antarctic regions.

Sea-ice distribution and variability in the East Greenland Sea, 2003-13 / Boccolari, Mauro; Guerrieri, Lorenzo; Parmiggiani, Flavio. - STAMPA. - 9240:(2014), pp. 9240031-9240038. (Intervento presentato al convegno Remote Sensing of the Ocean, Sea Ice, Coastal Waters, and Large Water Regions 2014 tenutosi a Amsterdam, Netherlands nel September 22, 2014) [10.1117/12.2066489].

Sea-ice distribution and variability in the East Greenland Sea, 2003-13

BOCCOLARI, Mauro;GUERRIERI, Lorenzo;
2014

Abstract

This study presents an analysis of the sea-ice area time series for the East Greenland Sea for the period January 2003 – December 2013. The data used are a subset of the Arctic Sea Ice Concentration data set derived from the observations of the passive microwave sensors AMSR-E and AMSR-2 and produced, on a daily basis, by the Inst. of Environ. Physics of the University of Bremen. The area of interest goes, approximately, from 57◦N to 84◦N and from 53◦W to 15◦E. On the basis of previous studies, the parameter Sea Ice Area as the sum of all pixels whose sea ice concentration is above 70%, was introduced for measuring sea-ice extent. A first survey of the Greenland Sea data set showed a large anomaly in year 2012; this anomaly, clearly linked with the transition period from AMSR-E to AMSR-2 when re-sampled SSM/I data were used, was partially corrected with a linear regression procedure. The correlation between monthly mean Sea Ice Area and other geophysical parameters, like air temperature, surface wind and cloud cover, was further investigated. High anti-correlation coefficients between air temperature, at sea level and in five different tropospheric layers, and observed ice cover is confirmed. Our analysis shows that the strong decline of Arctic sea-ice area in the last 10 years is not observed in the East Greenland Sea; this implies that large reductions have occurred in the Canadian and Russian Arctic. This result confirms a hypothesis recently postulated to explain the different sea-ice decline in the Arctic and Antarctic regions.
2014
Remote Sensing of the Ocean, Sea Ice, Coastal Waters, and Large Water Regions 2014
Amsterdam, Netherlands
September 22, 2014
9240
9240031
9240038
Boccolari, Mauro; Guerrieri, Lorenzo; Parmiggiani, Flavio
Sea-ice distribution and variability in the East Greenland Sea, 2003-13 / Boccolari, Mauro; Guerrieri, Lorenzo; Parmiggiani, Flavio. - STAMPA. - 9240:(2014), pp. 9240031-9240038. (Intervento presentato al convegno Remote Sensing of the Ocean, Sea Ice, Coastal Waters, and Large Water Regions 2014 tenutosi a Amsterdam, Netherlands nel September 22, 2014) [10.1117/12.2066489].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1046514
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