Table1_Precipitation trends (1958–2021) on Ammassalik island, south-east Greenland.DOCX
Along with Arctic warming, climate models project a strong increase in Arctic precipitation in the 21st century as well as an increase in the ratio of liquid to total precipitation. In the precipitation-rich region of south-east Greenland, precipitation changes could locally have significant impacts...
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Online Access: | https://doi.org/10.3389/feart.2022.1085499.s001 |
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ftunivfreestate:oai:figshare.com:article/21862791 2023-05-15T13:22:17+02:00 Table1_Precipitation trends (1958–2021) on Ammassalik island, south-east Greenland.DOCX Jorrit van der Schot (14377128) Jakob Abermann (4039013) Tiago Silva (1671334) Caroline Drost Jensen (14377131) Brice Noël (6451987) Wolfgang Schöner (5686265) 2023-01-11T04:17:43Z https://doi.org/10.3389/feart.2022.1085499.s001 unknown https://figshare.com/articles/dataset/Table1_Precipitation_trends_1958_2021_on_Ammassalik_island_south-east_Greenland_DOCX/21862791 doi:10.3389/feart.2022.1085499.s001 CC BY 4.0 CC-BY Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change air temperature (AT) climate change Greenland Mittivakkat glacier precipitation RACMO2 rainfall snowfall Dataset 2023 ftunivfreestate https://doi.org/10.3389/feart.2022.1085499.s001 2023-01-13T00:37:23Z Along with Arctic warming, climate models project a strong increase in Arctic precipitation in the 21st century as well as an increase in the ratio of liquid to total precipitation. In the precipitation-rich region of south-east Greenland, precipitation changes could locally have significant impacts on runoff. However, climate data are sparse in this remote region. This study focuses on improving our understanding of the past precipitation changes on Ammassalik island in south-east Greenland between 1958 and 2021. To assess past changes in air temperature at 2-meter and precipitation, output from a regional polar climate model (RACMO2.3p2) is evaluated with measurements from automatic weather stations in Tasiilaq and on Mittivakkat glacier. In addition, RACMO2.3p2 is used to assess past seasonal changes in air temperature at 2-meter, precipitation amount, precipitation phase and the altitude of the rain/snow boundary. We find that the climate model accurately represents the monthly average observed air temperature at 2-meter. While total precipitation is overestimated, interannual variability of precipitation is properly captured. We report a significant increase of summer temperature at 2-meter of +0.3°C/decade (p<0.01) at Mittivakkat glacier and +0.2°C/decade (p<0.01) in Tasiilaq in 1958–2021. For the subperiod 1990–2019, the trend in annual averages of temperature at 2-meter in Tasiilaq (+0.8°C/decade, p=0.02) corresponds well to known temperature trends on the Greenland Ice Sheet within the same period. On Mittivakkat glacier a significant trend is not detected within this subperiod (+0.2°C/decade, p=0.25). The modelled liquid precipitation ratio on Ammassalik island increased in all summer months (1958–2015) by +2.0/+1.9/+1.8%/decade in June/July/August respectively. In July and August, these trends were stronger at higher elevations. No statistical evidence is found for trends in other seasons. We also identify monthly increases in the altitude of the rain-to-snow boundary (+25/+23/+20 m/decade in ... Dataset Ammassalik Arctic Climate change East Greenland glacier Greenland Ice Sheet Tasiilaq KovsieScholar Repository (University of the Free State - UFS UV) Arctic Greenland Tasiilaq ENVELOPE(-37.637,-37.637,65.615,65.615) |
institution |
Open Polar |
collection |
KovsieScholar Repository (University of the Free State - UFS UV) |
op_collection_id |
ftunivfreestate |
language |
unknown |
topic |
Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change air temperature (AT) climate change Greenland Mittivakkat glacier precipitation RACMO2 rainfall snowfall |
spellingShingle |
Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change air temperature (AT) climate change Greenland Mittivakkat glacier precipitation RACMO2 rainfall snowfall Jorrit van der Schot (14377128) Jakob Abermann (4039013) Tiago Silva (1671334) Caroline Drost Jensen (14377131) Brice Noël (6451987) Wolfgang Schöner (5686265) Table1_Precipitation trends (1958–2021) on Ammassalik island, south-east Greenland.DOCX |
topic_facet |
Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change air temperature (AT) climate change Greenland Mittivakkat glacier precipitation RACMO2 rainfall snowfall |
description |
Along with Arctic warming, climate models project a strong increase in Arctic precipitation in the 21st century as well as an increase in the ratio of liquid to total precipitation. In the precipitation-rich region of south-east Greenland, precipitation changes could locally have significant impacts on runoff. However, climate data are sparse in this remote region. This study focuses on improving our understanding of the past precipitation changes on Ammassalik island in south-east Greenland between 1958 and 2021. To assess past changes in air temperature at 2-meter and precipitation, output from a regional polar climate model (RACMO2.3p2) is evaluated with measurements from automatic weather stations in Tasiilaq and on Mittivakkat glacier. In addition, RACMO2.3p2 is used to assess past seasonal changes in air temperature at 2-meter, precipitation amount, precipitation phase and the altitude of the rain/snow boundary. We find that the climate model accurately represents the monthly average observed air temperature at 2-meter. While total precipitation is overestimated, interannual variability of precipitation is properly captured. We report a significant increase of summer temperature at 2-meter of +0.3°C/decade (p<0.01) at Mittivakkat glacier and +0.2°C/decade (p<0.01) in Tasiilaq in 1958–2021. For the subperiod 1990–2019, the trend in annual averages of temperature at 2-meter in Tasiilaq (+0.8°C/decade, p=0.02) corresponds well to known temperature trends on the Greenland Ice Sheet within the same period. On Mittivakkat glacier a significant trend is not detected within this subperiod (+0.2°C/decade, p=0.25). The modelled liquid precipitation ratio on Ammassalik island increased in all summer months (1958–2015) by +2.0/+1.9/+1.8%/decade in June/July/August respectively. In July and August, these trends were stronger at higher elevations. No statistical evidence is found for trends in other seasons. We also identify monthly increases in the altitude of the rain-to-snow boundary (+25/+23/+20 m/decade in ... |
format |
Dataset |
author |
Jorrit van der Schot (14377128) Jakob Abermann (4039013) Tiago Silva (1671334) Caroline Drost Jensen (14377131) Brice Noël (6451987) Wolfgang Schöner (5686265) |
author_facet |
Jorrit van der Schot (14377128) Jakob Abermann (4039013) Tiago Silva (1671334) Caroline Drost Jensen (14377131) Brice Noël (6451987) Wolfgang Schöner (5686265) |
author_sort |
Jorrit van der Schot (14377128) |
title |
Table1_Precipitation trends (1958–2021) on Ammassalik island, south-east Greenland.DOCX |
title_short |
Table1_Precipitation trends (1958–2021) on Ammassalik island, south-east Greenland.DOCX |
title_full |
Table1_Precipitation trends (1958–2021) on Ammassalik island, south-east Greenland.DOCX |
title_fullStr |
Table1_Precipitation trends (1958–2021) on Ammassalik island, south-east Greenland.DOCX |
title_full_unstemmed |
Table1_Precipitation trends (1958–2021) on Ammassalik island, south-east Greenland.DOCX |
title_sort |
table1_precipitation trends (1958–2021) on ammassalik island, south-east greenland.docx |
publishDate |
2023 |
url |
https://doi.org/10.3389/feart.2022.1085499.s001 |
long_lat |
ENVELOPE(-37.637,-37.637,65.615,65.615) |
geographic |
Arctic Greenland Tasiilaq |
geographic_facet |
Arctic Greenland Tasiilaq |
genre |
Ammassalik Arctic Climate change East Greenland glacier Greenland Ice Sheet Tasiilaq |
genre_facet |
Ammassalik Arctic Climate change East Greenland glacier Greenland Ice Sheet Tasiilaq |
op_relation |
https://figshare.com/articles/dataset/Table1_Precipitation_trends_1958_2021_on_Ammassalik_island_south-east_Greenland_DOCX/21862791 doi:10.3389/feart.2022.1085499.s001 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/feart.2022.1085499.s001 |
_version_ |
1766364115627933696 |