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|a Melt Season Duration and Ice Layer Formation on the Greenland Ice Sheet 2000-2004 |h [electronic resource]. |
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|a [S.l.] : |b American Geophysical Union, |c 2007. |
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|a Journal of Geophysical Research Volume 112. |
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|a Please contact the owning institution for licensing and permissions. It is the user's responsibility to ensure use does not violate any third party rights. |
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|a Time series of enhanced resolution QuikSCAT images were used to map the
extent and duration of surface melt and the distribution of ice layer formation on the
Greenland ice sheet in the period 2000–2004. Apart from the bare ice and the mixed
pixels (10%) along the ice sheet margin where melt cannot be determined reliably,
annual melt duration and melt anomaly maps were produced across the ice
sheet (90%) for each summer. Over the 5-year period, the mean melt duration for the ice
sheet ranged from 14.3 to 20.5 d. The proportion of the ice sheet that experienced melting
in a given year ranged from 44.2% to 79.2%. Extensive melt in 2002 was caused
by a single melt event of a few days duration. This event was associated with the intrusion
of a ridge of high pressure from the North Atlantic Ocean that brought warm air onto the
ice sheet. The change in biweekly averaged backscatter between the freeze up periods
in the current and previous falls was used to identify changes in the distribution of ice
layers in snow between successive melt seasons. The year 2002 had the maximum melt
extent and duration, and ice layer formation extended to higher elevations than in other
years. Interannual changes in the distribution of ice layer formation may be associated
with changes in surface height that are not necessarily indicative of mass balance changes.
Mapping of ice layer formation is thus potentially useful for interpreting both real and
apparent height changes measured by altimetry. |
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|a Electronic reproduction. |c Florida International University, |d 2015. |f (dpSobek) |n Mode of access: World Wide Web. |n System requirements: Internet connectivity; Web browser software. |
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|t Melt Season Duration and Ice Layer Formation on the Greenland Ice Sheet 2000-2004 |
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|a dpSobek |c Sea Level Rise |
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|u http://dpanther.fiu.edu/dpService/dpPurlService/purl/FI15060930/00001 |y Click here for full text |
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|3 Host material |u http://onlinelibrary.wiley.com/doi/10.1029/2007JF000760/full |y Melt Season Duration and Ice Layer Formation on the Greenland Ice Sheet 2000-2004 |
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|a http://dpanther.fiu.edu/sobek/content/FI/15/06/09/30/00001/Wang et al_2007_Melt season duration and ice layer formation on the Greenland ice sheet,2thm.jpg |
