Journal
GEOPHYSICAL RESEARCH LETTERS
Volume 42, Issue 8, Pages 3011-3018Publisher
AMER GEOPHYSICAL UNION
DOI: 10.1002/2015GL063550
Keywords
mesoscale meteorology; Greenland; flow distortion; barrier winds; katabatic flow; air-sea-ice interaction
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Funding
- Natural Environment Research Council [NE/C003365/1] Funding Source: researchfish
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Southern Greenland is characterized by a number of low-level high wind speed weather systems that are the result of topographic flow distortion. These systems include barrier winds and katabatic flow that occur along its southeast coast. Global atmospheric reanalyses have proven to be important tools in furthering our understanding of these orographic winds and their role in the climate system. However, there is evidence that the mesoscale characteristics of these systems may be missed in these global products. Here we show that the Arctic System Reanalysis, a higher-resolution regional reanalysis, is able to capture mesoscale features of barrier winds and katabatic flow that are missed or underrepresented in ERA-I, a leading modern global reanalysis. This suggests that our understanding of the impact of these wind systems on the coupled-climate system can be enhanced through the use of higher-resolution regional reanalyses or model data.
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