Greenland monthly precipitation analysis from the Arctic System Reanalysis (ASR): 2000-2012
Arctic System Reanalysis version 1 (ASRv1) forecasts of monthly precipitation over Greenland are compared with gauge-based precipitation measured by the Danish Meteorological Institute (DMI) and precipitation retrieved from the Precipitation Occurrence Sensor System (POSS) at Summit. The ASRv1 preci...
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ftucl:oai:eprints.ucl.ac.uk.OAI2:10071008 2023-12-24T10:13:45+01:00 Greenland monthly precipitation analysis from the Arctic System Reanalysis (ASR): 2000-2012 Koyama, T Stroeve, J 2019-03 text https://discovery.ucl.ac.uk/id/eprint/10071008/1/1-s2.0-S1873965218300665-main.pdf https://discovery.ucl.ac.uk/id/eprint/10071008/ eng eng ELSEVIER SCIENCE BV https://discovery.ucl.ac.uk/id/eprint/10071008/1/1-s2.0-S1873965218300665-main.pdf https://discovery.ucl.ac.uk/id/eprint/10071008/ open Polar Science , 19 pp. 1-12. (2019) Science & Technology Life Sciences & Biomedicine Physical Sciences Ecology Geosciences Multidisciplinary Environmental Sciences & Ecology Geology Arctic Greenland Precipitation North atlantic oscillation NORTH-ATLANTIC OSCILLATION SURFACE MASS-BALANCE SEA-ICE LOSS CYCLONE ACTIVITY STORM TRACKS SHEET CLIMATE SNOWFALL MODEL ACCUMULATION Article 2019 ftucl 2023-11-27T13:07:28Z Arctic System Reanalysis version 1 (ASRv1) forecasts of monthly precipitation over Greenland are compared with gauge-based precipitation measured by the Danish Meteorological Institute (DMI) and precipitation retrieved from the Precipitation Occurrence Sensor System (POSS) at Summit. The ASRv1 precipitation generally agrees with the corrected DMI gauge-based precipitation measured at coastal or near-coastal stations in Greenland, but the corresponding data at Ikerasassuaq and Nuuk are not the case. ASRv1 precipitation at Summit, i.e., in a higher continental environment, is overestimated compared with the POSS observations. The North Atlantic Oscillation (NAO index and ASRv1 precipitation are moderately correlated over northern Greenland, the North Atlantic, and the Greenland Sea regions (0.32–0.49). It is presumed that local wind events have a larger influence on precipitation where smaller correlations occur. Suggested future work to understand discrepancies between ASRv1 and DMI precipitation fields in Greenland coastal regions is to include case studies of local wind events and corresponding precipitation variations utilizing in-situ measurements during both strong positive and negative NAO phases. At high-altitude and inland areas, further observations are needed to confirm the ASRv1 overestimation. Article in Journal/Newspaper Arctic Greenland Greenland Sea Ikerasassuaq North Atlantic North Atlantic oscillation Nuuk Polar Science Polar Science Sea ice University College London: UCL Discovery Arctic Greenland Nuuk ENVELOPE(-52.150,-52.150,68.717,68.717) |
institution |
Open Polar |
collection |
University College London: UCL Discovery |
op_collection_id |
ftucl |
language |
English |
topic |
Science & Technology Life Sciences & Biomedicine Physical Sciences Ecology Geosciences Multidisciplinary Environmental Sciences & Ecology Geology Arctic Greenland Precipitation North atlantic oscillation NORTH-ATLANTIC OSCILLATION SURFACE MASS-BALANCE SEA-ICE LOSS CYCLONE ACTIVITY STORM TRACKS SHEET CLIMATE SNOWFALL MODEL ACCUMULATION |
spellingShingle |
Science & Technology Life Sciences & Biomedicine Physical Sciences Ecology Geosciences Multidisciplinary Environmental Sciences & Ecology Geology Arctic Greenland Precipitation North atlantic oscillation NORTH-ATLANTIC OSCILLATION SURFACE MASS-BALANCE SEA-ICE LOSS CYCLONE ACTIVITY STORM TRACKS SHEET CLIMATE SNOWFALL MODEL ACCUMULATION Koyama, T Stroeve, J Greenland monthly precipitation analysis from the Arctic System Reanalysis (ASR): 2000-2012 |
topic_facet |
Science & Technology Life Sciences & Biomedicine Physical Sciences Ecology Geosciences Multidisciplinary Environmental Sciences & Ecology Geology Arctic Greenland Precipitation North atlantic oscillation NORTH-ATLANTIC OSCILLATION SURFACE MASS-BALANCE SEA-ICE LOSS CYCLONE ACTIVITY STORM TRACKS SHEET CLIMATE SNOWFALL MODEL ACCUMULATION |
description |
Arctic System Reanalysis version 1 (ASRv1) forecasts of monthly precipitation over Greenland are compared with gauge-based precipitation measured by the Danish Meteorological Institute (DMI) and precipitation retrieved from the Precipitation Occurrence Sensor System (POSS) at Summit. The ASRv1 precipitation generally agrees with the corrected DMI gauge-based precipitation measured at coastal or near-coastal stations in Greenland, but the corresponding data at Ikerasassuaq and Nuuk are not the case. ASRv1 precipitation at Summit, i.e., in a higher continental environment, is overestimated compared with the POSS observations. The North Atlantic Oscillation (NAO index and ASRv1 precipitation are moderately correlated over northern Greenland, the North Atlantic, and the Greenland Sea regions (0.32–0.49). It is presumed that local wind events have a larger influence on precipitation where smaller correlations occur. Suggested future work to understand discrepancies between ASRv1 and DMI precipitation fields in Greenland coastal regions is to include case studies of local wind events and corresponding precipitation variations utilizing in-situ measurements during both strong positive and negative NAO phases. At high-altitude and inland areas, further observations are needed to confirm the ASRv1 overestimation. |
format |
Article in Journal/Newspaper |
author |
Koyama, T Stroeve, J |
author_facet |
Koyama, T Stroeve, J |
author_sort |
Koyama, T |
title |
Greenland monthly precipitation analysis from the Arctic System Reanalysis (ASR): 2000-2012 |
title_short |
Greenland monthly precipitation analysis from the Arctic System Reanalysis (ASR): 2000-2012 |
title_full |
Greenland monthly precipitation analysis from the Arctic System Reanalysis (ASR): 2000-2012 |
title_fullStr |
Greenland monthly precipitation analysis from the Arctic System Reanalysis (ASR): 2000-2012 |
title_full_unstemmed |
Greenland monthly precipitation analysis from the Arctic System Reanalysis (ASR): 2000-2012 |
title_sort |
greenland monthly precipitation analysis from the arctic system reanalysis (asr): 2000-2012 |
publisher |
ELSEVIER SCIENCE BV |
publishDate |
2019 |
url |
https://discovery.ucl.ac.uk/id/eprint/10071008/1/1-s2.0-S1873965218300665-main.pdf https://discovery.ucl.ac.uk/id/eprint/10071008/ |
long_lat |
ENVELOPE(-52.150,-52.150,68.717,68.717) |
geographic |
Arctic Greenland Nuuk |
geographic_facet |
Arctic Greenland Nuuk |
genre |
Arctic Greenland Greenland Sea Ikerasassuaq North Atlantic North Atlantic oscillation Nuuk Polar Science Polar Science Sea ice |
genre_facet |
Arctic Greenland Greenland Sea Ikerasassuaq North Atlantic North Atlantic oscillation Nuuk Polar Science Polar Science Sea ice |
op_source |
Polar Science , 19 pp. 1-12. (2019) |
op_relation |
https://discovery.ucl.ac.uk/id/eprint/10071008/1/1-s2.0-S1873965218300665-main.pdf https://discovery.ucl.ac.uk/id/eprint/10071008/ |
op_rights |
open |
_version_ |
1786185523905167360 |