Hydroclimatic controls on the isotopic (δ¹⁸ O, δ² H, d-excess) traits of pan-Arctic summer rainfall events
Abstract Arctic sea-ice loss is emblematic of an amplified Arctic water cycle and has critical feedback implications for global climate. Stable isotopes (δ¹⁸O, δ²H, d-excess) are valuable tracers for constraining water cycle and climate processes through space and time. Yet, the paucity of well-reso...
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Format: | Article in Journal/Newspaper |
Language: | English |
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Frontiers Media
2021
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Online Access: | http://urn.fi/urn:nbn:fi-fe2021092246904 |
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openpolar |
institution |
Open Polar |
collection |
Jultika - University of Oulu repository |
op_collection_id |
ftunivoulu |
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, M. (Moein) Bailey, H. (Hannah) Mustonen, K.-R. (Kaisa-Riikka) Marttila, H. (Hannu) Klein, E. S. (Eric S.) Gribanov, K. (Konstantin) Bret-Harte, M. S. (M. Syndonia) Chupakov, A. V. (Artem V.) Divine, D. V. (Dmitry V.) Else, B. (Brent) Filippov, I. (Ilya) Hyöky, V. (Valtteri) Jones, S. (Samantha) Kirpotin, S. N. (Sergey N.) Kroon, A. (Aart) Markussen, H. T. (Helge Tore) Nielsen, M. (Martin) Olsen, M. (Maia) Paavola, R. (Riku) Pokrovsky, O. S. (Oleg S.) Prokushkin, A. (Anatoly) Rasch, M. (Morten) Raundrup, K. (Katrine) Suominen, O. (Otso) Syvänperä, I. (Ilkka) Vignisson, S. R. (Sölvi Rúnar) Zarov, E. (Evgeny) Welker, J. M. (Jeffrey M.) Hydroclimatic controls on the isotopic (δ¹⁸ O, δ² H, d-excess) traits of pan-Arctic summer rainfall events |
topic_facet |
Arctic atmospheric circulation precipitation sea ice stable isotopes water cycle |
description |
Abstract Arctic sea-ice loss is emblematic of an amplified Arctic water cycle and has critical feedback implications for global climate. Stable isotopes (δ¹⁸O, δ²H, 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 δ²H = 7.6⋅δ¹⁸O–1.8 (r² = 0.96, p < 0.01). Mean amount-weighted δ¹⁸O, δ²H, and d-excess values were −12.3, −93.5, and 4.9‰, respectively, with the lowest summer mean δ¹⁸O 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 δ¹⁸O-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 δ¹⁸O values. Yet 32% of precipitation events, characterized by lower δ¹⁸O 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 declines. Resolving ... |
format |
Article in Journal/Newspaper |
author |
Mellat, M. (Moein) Bailey, H. (Hannah) Mustonen, K.-R. (Kaisa-Riikka) Marttila, H. (Hannu) Klein, E. S. (Eric S.) Gribanov, K. (Konstantin) Bret-Harte, M. S. (M. Syndonia) Chupakov, A. V. (Artem V.) Divine, D. V. (Dmitry V.) Else, B. (Brent) Filippov, I. (Ilya) Hyöky, V. (Valtteri) Jones, S. (Samantha) Kirpotin, S. N. (Sergey N.) Kroon, A. (Aart) Markussen, H. T. (Helge Tore) Nielsen, M. (Martin) Olsen, M. (Maia) Paavola, R. (Riku) Pokrovsky, O. S. (Oleg S.) Prokushkin, A. (Anatoly) Rasch, M. (Morten) Raundrup, K. (Katrine) Suominen, O. (Otso) Syvänperä, I. (Ilkka) Vignisson, S. R. (Sölvi Rúnar) Zarov, E. (Evgeny) Welker, J. M. (Jeffrey M.) |
author_facet |
Mellat, M. (Moein) Bailey, H. (Hannah) Mustonen, K.-R. (Kaisa-Riikka) Marttila, H. (Hannu) Klein, E. S. (Eric S.) Gribanov, K. (Konstantin) Bret-Harte, M. S. (M. Syndonia) Chupakov, A. V. (Artem V.) Divine, D. V. (Dmitry V.) Else, B. (Brent) Filippov, I. (Ilya) Hyöky, V. (Valtteri) Jones, S. (Samantha) Kirpotin, S. N. (Sergey N.) Kroon, A. (Aart) Markussen, H. T. (Helge Tore) Nielsen, M. (Martin) Olsen, M. (Maia) Paavola, R. (Riku) Pokrovsky, O. S. (Oleg S.) Prokushkin, A. (Anatoly) Rasch, M. (Morten) Raundrup, K. (Katrine) Suominen, O. (Otso) Syvänperä, I. (Ilkka) Vignisson, S. R. (Sölvi Rúnar) Zarov, E. (Evgeny) Welker, J. M. (Jeffrey M.) |
author_sort |
Mellat, M. (Moein) |
title |
Hydroclimatic controls on the isotopic (δ¹⁸ O, δ² H, d-excess) traits of pan-Arctic summer rainfall events |
title_short |
Hydroclimatic controls on the isotopic (δ¹⁸ O, δ² H, d-excess) traits of pan-Arctic summer rainfall events |
title_full |
Hydroclimatic controls on the isotopic (δ¹⁸ O, δ² H, d-excess) traits of pan-Arctic summer rainfall events |
title_fullStr |
Hydroclimatic controls on the isotopic (δ¹⁸ O, δ² H, d-excess) traits of pan-Arctic summer rainfall events |
title_full_unstemmed |
Hydroclimatic controls on the isotopic (δ¹⁸ O, δ² H, d-excess) traits of pan-Arctic summer rainfall events |
title_sort |
hydroclimatic controls on the isotopic (δ¹⁸ o, δ² h, d-excess) traits of pan-arctic summer rainfall events |
publisher |
Frontiers Media |
publishDate |
2021 |
url |
http://urn.fi/urn:nbn:fi-fe2021092246904 |
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_relation |
info:eu-repo/grantAgreement/EC/H2020/730938/EU/International Network for Terrestrial Research and Monitoring in the Arctic/INTERACT |
op_rights |
info:eu-repo/semantics/openAccess © 2021 Mellat, Bailey, Mustonen, Marttila, Klein, Gribanov, Bret-Harte, Chupakov, Divine, Else, Filippov, Hyöky, Jones, Kirpotin, Kroon, Markussen, Nielsen, Olsen, Paavola, Pokrovsky, Prokushkin, Rasch, Raundrup, Suominen, Syvänperä, Vignisson, Zarov and Welker. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. https://creativecommons.org/licenses/by/4.0/ |
_version_ |
1772810483690110976 |
spelling |
ftunivoulu:oai:oulu.fi:nbnfi-fe2021092246904 2023-07-30T03:59:38+02:00 Hydroclimatic controls on the isotopic (δ¹⁸ O, δ² H, d-excess) traits of pan-Arctic summer rainfall events Mellat, M. (Moein) Bailey, H. (Hannah) Mustonen, K.-R. (Kaisa-Riikka) Marttila, H. (Hannu) Klein, E. S. (Eric S.) Gribanov, K. (Konstantin) Bret-Harte, M. S. (M. Syndonia) Chupakov, A. V. (Artem V.) Divine, D. V. (Dmitry V.) Else, B. (Brent) Filippov, I. (Ilya) Hyöky, V. (Valtteri) Jones, S. (Samantha) Kirpotin, S. N. (Sergey N.) Kroon, A. (Aart) Markussen, H. T. (Helge Tore) Nielsen, M. (Martin) Olsen, M. (Maia) Paavola, R. (Riku) Pokrovsky, O. S. (Oleg S.) Prokushkin, A. (Anatoly) Rasch, M. (Morten) Raundrup, K. (Katrine) Suominen, O. (Otso) Syvänperä, I. (Ilkka) Vignisson, S. R. (Sölvi Rúnar) Zarov, E. (Evgeny) Welker, J. M. (Jeffrey M.) 2021 application/pdf http://urn.fi/urn:nbn:fi-fe2021092246904 eng eng Frontiers Media info:eu-repo/grantAgreement/EC/H2020/730938/EU/International Network for Terrestrial Research and Monitoring in the Arctic/INTERACT info:eu-repo/semantics/openAccess © 2021 Mellat, Bailey, Mustonen, Marttila, Klein, Gribanov, Bret-Harte, Chupakov, Divine, Else, Filippov, Hyöky, Jones, Kirpotin, Kroon, Markussen, Nielsen, Olsen, Paavola, Pokrovsky, Prokushkin, Rasch, Raundrup, Suominen, Syvänperä, Vignisson, Zarov and Welker. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. https://creativecommons.org/licenses/by/4.0/ Arctic atmospheric circulation precipitation sea ice stable isotopes water cycle info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2021 ftunivoulu 2023-07-08T19:58:22Z Abstract Arctic sea-ice loss is emblematic of an amplified Arctic water cycle and has critical feedback implications for global climate. Stable isotopes (δ¹⁸O, δ²H, 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 δ²H = 7.6⋅δ¹⁸O–1.8 (r² = 0.96, p < 0.01). Mean amount-weighted δ¹⁸O, δ²H, and d-excess values were −12.3, −93.5, and 4.9‰, respectively, with the lowest summer mean δ¹⁸O 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 δ¹⁸O-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 δ¹⁸O values. Yet 32% of precipitation events, characterized by lower δ¹⁸O 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 declines. Resolving ... Article in Journal/Newspaper Arctic Arctic Arctic Ocean Greenland Iceland Sea ice Subarctic Tundra Alaska Jultika - University of Oulu repository Arctic Arctic Ocean Greenland |