Hydroclimatic Controls on the Isotopic (δ 18 O, δ 2 H, d-excess) Traits of Pan-Arctic Summer Rainfall Events
Arctic sea-ice loss is emblematic of an amplified Arctic water cycle and has critical feedback implications for global climate. Stable isotopes (δ 18 O, δ 2 H, d-excess) are valuable tracers for constraining water cycle and climate processes through space and time. Yet, the paucity of well-resolved...
Published in: | Frontiers in Earth Science |
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Online Access: | https://curis.ku.dk/portal/da/publications/hydroclimatic-controls-on-the-isotopic-18-o-2-h-dexcess-traits-of-panarctic-summer-rainfall-events(ce3aa426-1b7a-493c-a51a-b853d1921479).html https://doi.org/10.3389/feart.2021.651731 https://curis.ku.dk/ws/files/291361897/feart_09_651731.pdf |
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ftcopenhagenunip:oai:pure.atira.dk:publications/ce3aa426-1b7a-493c-a51a-b853d1921479 2024-06-09T07:42:36+00:00 Hydroclimatic Controls on the Isotopic (δ 18 O, δ 2 H, d-excess) Traits of Pan-Arctic Summer Rainfall Events Mellat, Moein Bailey, Hannah Mustonen, Kaisa Riikka Marttila, Hannu Klein, Eric S. Gribanov, Konstantin Bret-Harte, M. Syndonia Chupakov, Artem V. Divine, Dmitry V. Else, Brent Filippov, Ilya Hyöky, Valtteri Jones, Samantha Kirpotin, Sergey N. Kroon, Aart Markussen, Helge Tore Nielsen, Martin Olsen, Maia Paavola, Riku Pokrovsky, Oleg S. Prokushkin, Anatoly Rasch, Morten Raundrup, Katrine Suominen, Otso Syvänperä, Ilkka Vignisson, Sölvi Rúnar Zarov, Evgeny Welker, Jeffrey M. 2021-05-31 application/pdf https://curis.ku.dk/portal/da/publications/hydroclimatic-controls-on-the-isotopic-18-o-2-h-dexcess-traits-of-panarctic-summer-rainfall-events(ce3aa426-1b7a-493c-a51a-b853d1921479).html https://doi.org/10.3389/feart.2021.651731 https://curis.ku.dk/ws/files/291361897/feart_09_651731.pdf eng eng info:eu-repo/semantics/openAccess Mellat , M , Bailey , H , Mustonen , K R , Marttila , H , Klein , E S , Gribanov , K , Bret-Harte , M S , Chupakov , A V , Divine , D V , Else , B , Filippov , I , Hyöky , V , Jones , S , Kirpotin , S N , Kroon , A , Markussen , H T , Nielsen , M , Olsen , M , Paavola , R , Pokrovsky , O S , Prokushkin , A , Rasch , M , Raundrup , K , Suominen , O , Syvänperä , I , Vignisson , S R , Zarov , E & Welker , J M 2021 , ' Hydroclimatic Controls on the Isotopic (δ 18 O, δ 2 H, d-excess) Traits of Pan-Arctic Summer Rainfall Events ' , Frontiers in Earth Science , vol. 9 , 651731 . https://doi.org/10.3389/feart.2021.651731 Arctic atmospheric circulation precipitation sea ice stable isotopes water cycle article 2021 ftcopenhagenunip https://doi.org/10.3389/feart.2021.651731 2024-05-16T11:29:22Z Arctic sea-ice loss is emblematic of an amplified Arctic water cycle and has critical feedback implications for global climate. Stable isotopes (δ 18 O, δ 2 H, d-excess) are valuable tracers for constraining water cycle and climate processes through space and time. Yet, the paucity of well-resolved Arctic isotope data preclude an empirically derived understanding of the hydrologic changes occurring today, in the deep (geologic) past, and in the future. To address this knowledge gap, the Pan-Arctic Precipitation Isotope Network (PAPIN) was established in 2018 to coordinate precipitation sampling at 19 stations across key tundra, subarctic, maritime, and continental climate zones. Here, we present a first assessment of rainfall samples collected in summer 2018 (n = 281) and combine new isotope and meteorological data with sea ice observations, reanalysis data, and model simulations. Data collectively establish a summer Arctic Meteoric Water Line where δ 2 H = 7.6⋅δ 18 O–1.8 (r 2 = 0.96, p < 0.01). Mean amount-weighted δ 18 O, δ 2 H, and d-excess values were −12.3, −93.5, and 4.9‰, respectively, with the lowest summer mean δ 18 O value observed in northwest Greenland (−19.9‰) and the highest in Iceland (−7.3‰). Southern Alaska recorded the lowest mean d-excess (−8.2%) and northern Russia the highest (9.9‰). We identify a range of δ 18 O-temperature coefficients from 0.31‰/°C (Alaska) to 0.93‰/°C (Russia). The steepest regression slopes (>0.75‰/°C) were observed at continental sites, while statistically significant temperature relations were generally absent at coastal stations. Model outputs indicate that 68% of the summer precipitating air masses were transported into the Arctic from mid-latitudes and were characterized by relatively high δ 18 O values. Yet 32% of precipitation events, characterized by lower δ 18 O and high d-excess values, derived from northerly air masses transported from the Arctic Ocean and/or its marginal seas, highlighting key emergent oceanic moisture sources as sea ice cover ... Article in Journal/Newspaper Arctic Arctic Arctic Ocean Greenland Iceland Sea ice Subarctic Tundra Alaska University of Copenhagen: Research Arctic Arctic Ocean Greenland Frontiers in Earth Science 9 |
institution |
Open Polar |
collection |
University of Copenhagen: Research |
op_collection_id |
ftcopenhagenunip |
language |
English |
topic |
Arctic atmospheric circulation precipitation sea ice stable isotopes water cycle |
spellingShingle |
Arctic atmospheric circulation precipitation sea ice stable isotopes water cycle Mellat, Moein Bailey, Hannah Mustonen, Kaisa Riikka Marttila, Hannu Klein, Eric S. Gribanov, Konstantin Bret-Harte, M. Syndonia Chupakov, Artem V. Divine, Dmitry V. Else, Brent Filippov, Ilya Hyöky, Valtteri Jones, Samantha Kirpotin, Sergey N. Kroon, Aart Markussen, Helge Tore Nielsen, Martin Olsen, Maia Paavola, Riku Pokrovsky, Oleg S. Prokushkin, Anatoly Rasch, Morten Raundrup, Katrine Suominen, Otso Syvänperä, Ilkka Vignisson, Sölvi Rúnar Zarov, Evgeny Welker, Jeffrey M. Hydroclimatic Controls on the Isotopic (δ 18 O, δ 2 H, d-excess) Traits of Pan-Arctic Summer Rainfall Events |
topic_facet |
Arctic atmospheric circulation precipitation sea ice stable isotopes water cycle |
description |
Arctic sea-ice loss is emblematic of an amplified Arctic water cycle and has critical feedback implications for global climate. Stable isotopes (δ 18 O, δ 2 H, d-excess) are valuable tracers for constraining water cycle and climate processes through space and time. Yet, the paucity of well-resolved Arctic isotope data preclude an empirically derived understanding of the hydrologic changes occurring today, in the deep (geologic) past, and in the future. To address this knowledge gap, the Pan-Arctic Precipitation Isotope Network (PAPIN) was established in 2018 to coordinate precipitation sampling at 19 stations across key tundra, subarctic, maritime, and continental climate zones. Here, we present a first assessment of rainfall samples collected in summer 2018 (n = 281) and combine new isotope and meteorological data with sea ice observations, reanalysis data, and model simulations. Data collectively establish a summer Arctic Meteoric Water Line where δ 2 H = 7.6⋅δ 18 O–1.8 (r 2 = 0.96, p < 0.01). Mean amount-weighted δ 18 O, δ 2 H, and d-excess values were −12.3, −93.5, and 4.9‰, respectively, with the lowest summer mean δ 18 O value observed in northwest Greenland (−19.9‰) and the highest in Iceland (−7.3‰). Southern Alaska recorded the lowest mean d-excess (−8.2%) and northern Russia the highest (9.9‰). We identify a range of δ 18 O-temperature coefficients from 0.31‰/°C (Alaska) to 0.93‰/°C (Russia). The steepest regression slopes (>0.75‰/°C) were observed at continental sites, while statistically significant temperature relations were generally absent at coastal stations. Model outputs indicate that 68% of the summer precipitating air masses were transported into the Arctic from mid-latitudes and were characterized by relatively high δ 18 O values. Yet 32% of precipitation events, characterized by lower δ 18 O and high d-excess values, derived from northerly air masses transported from the Arctic Ocean and/or its marginal seas, highlighting key emergent oceanic moisture sources as sea ice cover ... |
format |
Article in Journal/Newspaper |
author |
Mellat, Moein Bailey, Hannah Mustonen, Kaisa Riikka Marttila, Hannu Klein, Eric S. Gribanov, Konstantin Bret-Harte, M. Syndonia Chupakov, Artem V. Divine, Dmitry V. Else, Brent Filippov, Ilya Hyöky, Valtteri Jones, Samantha Kirpotin, Sergey N. Kroon, Aart Markussen, Helge Tore Nielsen, Martin Olsen, Maia Paavola, Riku Pokrovsky, Oleg S. Prokushkin, Anatoly Rasch, Morten Raundrup, Katrine Suominen, Otso Syvänperä, Ilkka Vignisson, Sölvi Rúnar Zarov, Evgeny Welker, Jeffrey M. |
author_facet |
Mellat, Moein Bailey, Hannah Mustonen, Kaisa Riikka Marttila, Hannu Klein, Eric S. Gribanov, Konstantin Bret-Harte, M. Syndonia Chupakov, Artem V. Divine, Dmitry V. Else, Brent Filippov, Ilya Hyöky, Valtteri Jones, Samantha Kirpotin, Sergey N. Kroon, Aart Markussen, Helge Tore Nielsen, Martin Olsen, Maia Paavola, Riku Pokrovsky, Oleg S. Prokushkin, Anatoly Rasch, Morten Raundrup, Katrine Suominen, Otso Syvänperä, Ilkka Vignisson, Sölvi Rúnar Zarov, Evgeny Welker, Jeffrey M. |
author_sort |
Mellat, Moein |
title |
Hydroclimatic Controls on the Isotopic (δ 18 O, δ 2 H, d-excess) Traits of Pan-Arctic Summer Rainfall Events |
title_short |
Hydroclimatic Controls on the Isotopic (δ 18 O, δ 2 H, d-excess) Traits of Pan-Arctic Summer Rainfall Events |
title_full |
Hydroclimatic Controls on the Isotopic (δ 18 O, δ 2 H, d-excess) Traits of Pan-Arctic Summer Rainfall Events |
title_fullStr |
Hydroclimatic Controls on the Isotopic (δ 18 O, δ 2 H, d-excess) Traits of Pan-Arctic Summer Rainfall Events |
title_full_unstemmed |
Hydroclimatic Controls on the Isotopic (δ 18 O, δ 2 H, d-excess) Traits of Pan-Arctic Summer Rainfall Events |
title_sort |
hydroclimatic controls on the isotopic (δ 18 o, δ 2 h, d-excess) traits of pan-arctic summer rainfall events |
publishDate |
2021 |
url |
https://curis.ku.dk/portal/da/publications/hydroclimatic-controls-on-the-isotopic-18-o-2-h-dexcess-traits-of-panarctic-summer-rainfall-events(ce3aa426-1b7a-493c-a51a-b853d1921479).html https://doi.org/10.3389/feart.2021.651731 https://curis.ku.dk/ws/files/291361897/feart_09_651731.pdf |
geographic |
Arctic Arctic Ocean Greenland |
geographic_facet |
Arctic Arctic Ocean Greenland |
genre |
Arctic Arctic Arctic Ocean Greenland Iceland Sea ice Subarctic Tundra Alaska |
genre_facet |
Arctic Arctic Arctic Ocean Greenland Iceland Sea ice Subarctic Tundra Alaska |
op_source |
Mellat , M , Bailey , H , Mustonen , K R , Marttila , H , Klein , E S , Gribanov , K , Bret-Harte , M S , Chupakov , A V , Divine , D V , Else , B , Filippov , I , Hyöky , V , Jones , S , Kirpotin , S N , Kroon , A , Markussen , H T , Nielsen , M , Olsen , M , Paavola , R , Pokrovsky , O S , Prokushkin , A , Rasch , M , Raundrup , K , Suominen , O , Syvänperä , I , Vignisson , S R , Zarov , E & Welker , J M 2021 , ' Hydroclimatic Controls on the Isotopic (δ 18 O, δ 2 H, d-excess) Traits of Pan-Arctic Summer Rainfall Events ' , Frontiers in Earth Science , vol. 9 , 651731 . https://doi.org/10.3389/feart.2021.651731 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3389/feart.2021.651731 |
container_title |
Frontiers in Earth Science |
container_volume |
9 |
_version_ |
1801371381575712768 |