Stable isotope characteristics of precipitation in southeast Siberia, supplement to: Kostrova, Svetlana S; Meyer, Hanno; Fernandoy, Francisco; Werner, Martin; Tarasov, Pavel E (2020): Moisture origin and stable isotope characteristics of precipitation in southeast Siberia. Hydrological Processes, 34(1), 51-67
The paper presents oxygen and hydrogen isotopes of 284 precipitation event samples systematically collected in Irkutsk, in the Baikal region (southeast Siberia), between June 2011 and April 2017. This is the first high-resolution dataset of stable isotopes of precipitation from this poorly studied r...
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ftdatacite:10.1594/pangaea.910061 2023-05-15T15:19:15+02:00 Stable isotope characteristics of precipitation in southeast Siberia, supplement to: Kostrova, Svetlana S; Meyer, Hanno; Fernandoy, Francisco; Werner, Martin; Tarasov, Pavel E (2020): Moisture origin and stable isotope characteristics of precipitation in southeast Siberia. Hydrological Processes, 34(1), 51-67 Kostrova, Svetlana S Meyer, Hanno Fernandoy, Francisco Werner, Martin Tarasov, Pavel E 2019 text/tab-separated-values https://dx.doi.org/10.1594/pangaea.910061 https://doi.pangaea.de/10.1594/PANGAEA.910061 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1002/hyp.13571 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 CC-BY Sample code/label DATE/TIME Sample type δ18O, water δ Deuterium, water Deuterium excess Water sample Dataset dataset Supplementary Dataset 2019 ftdatacite https://doi.org/10.1594/pangaea.910061 https://doi.org/10.1002/hyp.13571 2022-02-09T13:17:17Z The paper presents oxygen and hydrogen isotopes of 284 precipitation event samples systematically collected in Irkutsk, in the Baikal region (southeast Siberia), between June 2011 and April 2017. This is the first high-resolution dataset of stable isotopes of precipitation from this poorly studied region of continental Asia, which has a high potential for isotope-based palaeoclimate research. The dataset revealed distinct seasonal variations: relatively high δ¹⁸O (up to -4‰) and δD (up to -40‰) values characterize summer air masses, and lighter isotope composition (-41‰ for δ¹⁸O and -322‰ for δD) is characteristic of winter precipitation. Our results show that air temperature mainly affects the isotope composition of precipitation, and no significant correlations were obtained for precipitation amount and relative humidity. A new temperature dependence was established for weighted mean monthly precipitation: +0.50‰/°C (r² = 0.83; p < 0.01; n = 55) for δ¹⁸O and +3.8‰/°C (r² = 0.83, p < 0.01; n = 55) for δD. Secondary fractionation processes (e.g., contribution of recycled moisture) were identified mainly in summer from low d excess. Backward trajectories assessed with the Hybrid Single-Particle Lagrangian Integrated Trajectory (HYSPLIT) model indicate that precipitation with the lowest mean δ¹⁸O and δD values reaches Irkutsk in winter related to moisture transport from the Arctic. Precipitation originating from the west/southwest with the heaviest mean isotope composition reaches Irkutsk in summer, thus representing moisture transport across Eurasia. Generally, moisture transport from the west, that is, the Atlantic Ocean predominates throughout the year. A comparison of our new isotope dataset with simulation results using the European Centre/Hamburg version 5 (ECHAM5)-wiso climate model reveals a good agreement of variations in δ¹⁸O (r² = 0.87; p < 0.01; n = 55) and air temperature (r² = 0.99; p < 0.01; n = 71). However, the ECHAM5-wiso model fails to capture observed variations in d excess (r² = 0.14; p < 0.01; n = 55). This disagreement can be partly explained by a model deficit of capturing regional hydrological processes associated with secondary moisture supply in summer. Dataset Arctic Siberia DataCite Metadata Store (German National Library of Science and Technology) Arctic Hanno ENVELOPE(17.444,17.444,66.301,66.301) |
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collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Sample code/label DATE/TIME Sample type δ18O, water δ Deuterium, water Deuterium excess Water sample |
spellingShingle |
Sample code/label DATE/TIME Sample type δ18O, water δ Deuterium, water Deuterium excess Water sample Kostrova, Svetlana S Meyer, Hanno Fernandoy, Francisco Werner, Martin Tarasov, Pavel E Stable isotope characteristics of precipitation in southeast Siberia, supplement to: Kostrova, Svetlana S; Meyer, Hanno; Fernandoy, Francisco; Werner, Martin; Tarasov, Pavel E (2020): Moisture origin and stable isotope characteristics of precipitation in southeast Siberia. Hydrological Processes, 34(1), 51-67 |
topic_facet |
Sample code/label DATE/TIME Sample type δ18O, water δ Deuterium, water Deuterium excess Water sample |
description |
The paper presents oxygen and hydrogen isotopes of 284 precipitation event samples systematically collected in Irkutsk, in the Baikal region (southeast Siberia), between June 2011 and April 2017. This is the first high-resolution dataset of stable isotopes of precipitation from this poorly studied region of continental Asia, which has a high potential for isotope-based palaeoclimate research. The dataset revealed distinct seasonal variations: relatively high δ¹⁸O (up to -4‰) and δD (up to -40‰) values characterize summer air masses, and lighter isotope composition (-41‰ for δ¹⁸O and -322‰ for δD) is characteristic of winter precipitation. Our results show that air temperature mainly affects the isotope composition of precipitation, and no significant correlations were obtained for precipitation amount and relative humidity. A new temperature dependence was established for weighted mean monthly precipitation: +0.50‰/°C (r² = 0.83; p < 0.01; n = 55) for δ¹⁸O and +3.8‰/°C (r² = 0.83, p < 0.01; n = 55) for δD. Secondary fractionation processes (e.g., contribution of recycled moisture) were identified mainly in summer from low d excess. Backward trajectories assessed with the Hybrid Single-Particle Lagrangian Integrated Trajectory (HYSPLIT) model indicate that precipitation with the lowest mean δ¹⁸O and δD values reaches Irkutsk in winter related to moisture transport from the Arctic. Precipitation originating from the west/southwest with the heaviest mean isotope composition reaches Irkutsk in summer, thus representing moisture transport across Eurasia. Generally, moisture transport from the west, that is, the Atlantic Ocean predominates throughout the year. A comparison of our new isotope dataset with simulation results using the European Centre/Hamburg version 5 (ECHAM5)-wiso climate model reveals a good agreement of variations in δ¹⁸O (r² = 0.87; p < 0.01; n = 55) and air temperature (r² = 0.99; p < 0.01; n = 71). However, the ECHAM5-wiso model fails to capture observed variations in d excess (r² = 0.14; p < 0.01; n = 55). This disagreement can be partly explained by a model deficit of capturing regional hydrological processes associated with secondary moisture supply in summer. |
format |
Dataset |
author |
Kostrova, Svetlana S Meyer, Hanno Fernandoy, Francisco Werner, Martin Tarasov, Pavel E |
author_facet |
Kostrova, Svetlana S Meyer, Hanno Fernandoy, Francisco Werner, Martin Tarasov, Pavel E |
author_sort |
Kostrova, Svetlana S |
title |
Stable isotope characteristics of precipitation in southeast Siberia, supplement to: Kostrova, Svetlana S; Meyer, Hanno; Fernandoy, Francisco; Werner, Martin; Tarasov, Pavel E (2020): Moisture origin and stable isotope characteristics of precipitation in southeast Siberia. Hydrological Processes, 34(1), 51-67 |
title_short |
Stable isotope characteristics of precipitation in southeast Siberia, supplement to: Kostrova, Svetlana S; Meyer, Hanno; Fernandoy, Francisco; Werner, Martin; Tarasov, Pavel E (2020): Moisture origin and stable isotope characteristics of precipitation in southeast Siberia. Hydrological Processes, 34(1), 51-67 |
title_full |
Stable isotope characteristics of precipitation in southeast Siberia, supplement to: Kostrova, Svetlana S; Meyer, Hanno; Fernandoy, Francisco; Werner, Martin; Tarasov, Pavel E (2020): Moisture origin and stable isotope characteristics of precipitation in southeast Siberia. Hydrological Processes, 34(1), 51-67 |
title_fullStr |
Stable isotope characteristics of precipitation in southeast Siberia, supplement to: Kostrova, Svetlana S; Meyer, Hanno; Fernandoy, Francisco; Werner, Martin; Tarasov, Pavel E (2020): Moisture origin and stable isotope characteristics of precipitation in southeast Siberia. Hydrological Processes, 34(1), 51-67 |
title_full_unstemmed |
Stable isotope characteristics of precipitation in southeast Siberia, supplement to: Kostrova, Svetlana S; Meyer, Hanno; Fernandoy, Francisco; Werner, Martin; Tarasov, Pavel E (2020): Moisture origin and stable isotope characteristics of precipitation in southeast Siberia. Hydrological Processes, 34(1), 51-67 |
title_sort |
stable isotope characteristics of precipitation in southeast siberia, supplement to: kostrova, svetlana s; meyer, hanno; fernandoy, francisco; werner, martin; tarasov, pavel e (2020): moisture origin and stable isotope characteristics of precipitation in southeast siberia. hydrological processes, 34(1), 51-67 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2019 |
url |
https://dx.doi.org/10.1594/pangaea.910061 https://doi.pangaea.de/10.1594/PANGAEA.910061 |
long_lat |
ENVELOPE(17.444,17.444,66.301,66.301) |
geographic |
Arctic Hanno |
geographic_facet |
Arctic Hanno |
genre |
Arctic Siberia |
genre_facet |
Arctic Siberia |
op_relation |
https://dx.doi.org/10.1002/hyp.13571 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.910061 https://doi.org/10.1002/hyp.13571 |
_version_ |
1766349435032305664 |