Hydroclimatic controls on the isotopic (δ18O, δ2H, d-excess) traits of pan-Arctic summer rainfall events.
International audience 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 paucit...
Published in: | Frontiers in Earth Science |
---|---|
Main Authors: | , , , , , , , , , , , , , , , , , , , , |
Other Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2021
|
Subjects: | |
Online Access: | https://insu.hal.science/insu-03661468 https://insu.hal.science/insu-03661468/document https://insu.hal.science/insu-03661468/file/feart-09-651731.pdf https://doi.org/10.3389/feart.2021.651731 |
id |
ftccsdartic:oai:HAL:insu-03661468v1 |
---|---|
record_format |
openpolar |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
Arctic Precipitatation sea ice Stable isotopes atmospheric circulation Water Cycle [SDU]Sciences of the Universe [physics] |
spellingShingle |
Arctic Precipitatation sea ice Stable isotopes atmospheric circulation Water Cycle [SDU]Sciences of the Universe [physics] 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 Hydroclimatic controls on the isotopic (δ18O, δ2H, d-excess) traits of pan-Arctic summer rainfall events. |
topic_facet |
Arctic Precipitatation sea ice Stable isotopes atmospheric circulation Water Cycle [SDU]Sciences of the Universe [physics] |
description |
International audience 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 ... |
author2 |
Géosciences Environnement Toulouse (GET) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) |
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 |
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 |
author_sort |
Mellat, Moein |
title |
Hydroclimatic controls on the isotopic (δ18O, δ2H, d-excess) traits of pan-Arctic summer rainfall events. |
title_short |
Hydroclimatic controls on the isotopic (δ18O, δ2H, d-excess) traits of pan-Arctic summer rainfall events. |
title_full |
Hydroclimatic controls on the isotopic (δ18O, δ2H, d-excess) traits of pan-Arctic summer rainfall events. |
title_fullStr |
Hydroclimatic controls on the isotopic (δ18O, δ2H, d-excess) traits of pan-Arctic summer rainfall events. |
title_full_unstemmed |
Hydroclimatic controls on the isotopic (δ18O, δ2H, d-excess) traits of pan-Arctic summer rainfall events. |
title_sort |
hydroclimatic controls on the isotopic (δ18o, δ2h, d-excess) traits of pan-arctic summer rainfall events. |
publisher |
HAL CCSD |
publishDate |
2021 |
url |
https://insu.hal.science/insu-03661468 https://insu.hal.science/insu-03661468/document https://insu.hal.science/insu-03661468/file/feart-09-651731.pdf https://doi.org/10.3389/feart.2021.651731 |
geographic |
Arctic Arctic Ocean Greenland |
geographic_facet |
Arctic Arctic Ocean Greenland |
genre |
Arctic Arctic Ocean Greenland Iceland Sea ice Subarctic Tundra Alaska |
genre_facet |
Arctic Arctic Ocean Greenland Iceland Sea ice Subarctic Tundra Alaska |
op_source |
ISSN: 2296-6463 Frontiers in Earth Science https://insu.hal.science/insu-03661468 Frontiers in Earth Science, 2021, 9, ⟨10.3389/feart.2021.651731⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.3389/feart.2021.651731 insu-03661468 https://insu.hal.science/insu-03661468 https://insu.hal.science/insu-03661468/document https://insu.hal.science/insu-03661468/file/feart-09-651731.pdf BIBCODE: 2021FrEaS.9.367M doi:10.3389/feart.2021.651731 |
op_rights |
http://creativecommons.org/licenses/by/ 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_ |
1786177648775397376 |
spelling |
ftccsdartic:oai:HAL:insu-03661468v1 2023-12-24T10:12:55+01:00 Hydroclimatic controls on the isotopic (δ18O, δ2H, 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 Géosciences Environnement Toulouse (GET) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) 2021 https://insu.hal.science/insu-03661468 https://insu.hal.science/insu-03661468/document https://insu.hal.science/insu-03661468/file/feart-09-651731.pdf https://doi.org/10.3389/feart.2021.651731 en eng HAL CCSD Frontiers Media info:eu-repo/semantics/altIdentifier/doi/10.3389/feart.2021.651731 insu-03661468 https://insu.hal.science/insu-03661468 https://insu.hal.science/insu-03661468/document https://insu.hal.science/insu-03661468/file/feart-09-651731.pdf BIBCODE: 2021FrEaS.9.367M doi:10.3389/feart.2021.651731 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 2296-6463 Frontiers in Earth Science https://insu.hal.science/insu-03661468 Frontiers in Earth Science, 2021, 9, ⟨10.3389/feart.2021.651731⟩ Arctic Precipitatation sea ice Stable isotopes atmospheric circulation Water Cycle [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2021 ftccsdartic https://doi.org/10.3389/feart.2021.651731 2023-11-26T00:09:25Z International audience 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 ... Article in Journal/Newspaper Arctic Arctic Ocean Greenland Iceland Sea ice Subarctic Tundra Alaska Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Arctic Arctic Ocean Greenland Frontiers in Earth Science 9 |