Bioaerosols as Evidence of Atmospheric Circulation Anomalies over the Okhotsk Sea and Shantar Islands in the Late Glacial–Holocene
Allochthonous biofossil distribution in the blanket peat bog of Bolshoy Shantar Island was used to analyze atmospheric circulation anomalies in the north-western Okhotsk Sea over the last 12.6 ka. The main aim of this study was to determine periods of intensification of deep cyclones and extreme sto...
Published in: | Climate |
---|---|
Main Authors: | , , , , , , |
Format: | Text |
Language: | English |
Published: |
Multidisciplinary Digital Publishing Institute
2022
|
Subjects: | |
Online Access: | https://doi.org/10.3390/cli10020024 |
id |
ftmdpi:oai:mdpi.com:/2225-1154/10/2/24/ |
---|---|
record_format |
openpolar |
spelling |
ftmdpi:oai:mdpi.com:/2225-1154/10/2/24/ 2023-08-20T03:59:25+02:00 Bioaerosols as Evidence of Atmospheric Circulation Anomalies over the Okhotsk Sea and Shantar Islands in the Late Glacial–Holocene Nadezhda Razjigaeva Larisa Ganzey Tatiana Grebennikova Vladimir Ponomarev Ludmila Mokhova Vladimir Chakov Mikhail Klimin agris 2022-02-09 application/pdf https://doi.org/10.3390/cli10020024 EN eng Multidisciplinary Digital Publishing Institute https://dx.doi.org/10.3390/cli10020024 https://creativecommons.org/licenses/by/4.0/ Climate; Volume 10; Issue 2; Pages: 24 cyclogenesis extreme storms Siberian High Aleutian Low blanket peatbog allochthonous biofossils (pollen and diatoms) Text 2022 ftmdpi https://doi.org/10.3390/cli10020024 2023-08-01T04:06:33Z Allochthonous biofossil distribution in the blanket peat bog of Bolshoy Shantar Island was used to analyze atmospheric circulation anomalies in the north-western Okhotsk Sea over the last 12.6 ka. The main aim of this study was to determine periods of intensification of deep cyclones and extreme storms. The composition of bioaerosols is significantly influenced by atmospheric zonal and meridional transport anomalies associated with anomalies of the monsoon system of Northeast Asia, atmospheric fronts and cyclone trajectories. Marine diatoms enter the peatland from the sea during extreme storms and record the passage of sea cyclones in the autumn-winter, whereas the distribution of allochthonous pollen indicates the intensity of continental cyclones. We used Pinus pumila pollen as an indicator of heavy snowfalls and winter cyclone activity. Fifteen phases of extreme storms were identified. Changes in ice coverage also played an important role in bioaerosol emission. During cold periods, emissions of bioaerosols mainly occurred in the open sea, whereas during warm periods, emissions occurred near the coast. The recurrence and intensity of cyclones during the cold seasons depends on displacement of the Siberian High and Aleutian Low. Periods of continental cyclones intensified in spring-summer and coincided with periods of active winter cyclogenesis. Text aleutian low okhotsk sea MDPI Open Access Publishing Okhotsk Climate 10 2 24 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
cyclogenesis extreme storms Siberian High Aleutian Low blanket peatbog allochthonous biofossils (pollen and diatoms) |
spellingShingle |
cyclogenesis extreme storms Siberian High Aleutian Low blanket peatbog allochthonous biofossils (pollen and diatoms) Nadezhda Razjigaeva Larisa Ganzey Tatiana Grebennikova Vladimir Ponomarev Ludmila Mokhova Vladimir Chakov Mikhail Klimin Bioaerosols as Evidence of Atmospheric Circulation Anomalies over the Okhotsk Sea and Shantar Islands in the Late Glacial–Holocene |
topic_facet |
cyclogenesis extreme storms Siberian High Aleutian Low blanket peatbog allochthonous biofossils (pollen and diatoms) |
description |
Allochthonous biofossil distribution in the blanket peat bog of Bolshoy Shantar Island was used to analyze atmospheric circulation anomalies in the north-western Okhotsk Sea over the last 12.6 ka. The main aim of this study was to determine periods of intensification of deep cyclones and extreme storms. The composition of bioaerosols is significantly influenced by atmospheric zonal and meridional transport anomalies associated with anomalies of the monsoon system of Northeast Asia, atmospheric fronts and cyclone trajectories. Marine diatoms enter the peatland from the sea during extreme storms and record the passage of sea cyclones in the autumn-winter, whereas the distribution of allochthonous pollen indicates the intensity of continental cyclones. We used Pinus pumila pollen as an indicator of heavy snowfalls and winter cyclone activity. Fifteen phases of extreme storms were identified. Changes in ice coverage also played an important role in bioaerosol emission. During cold periods, emissions of bioaerosols mainly occurred in the open sea, whereas during warm periods, emissions occurred near the coast. The recurrence and intensity of cyclones during the cold seasons depends on displacement of the Siberian High and Aleutian Low. Periods of continental cyclones intensified in spring-summer and coincided with periods of active winter cyclogenesis. |
format |
Text |
author |
Nadezhda Razjigaeva Larisa Ganzey Tatiana Grebennikova Vladimir Ponomarev Ludmila Mokhova Vladimir Chakov Mikhail Klimin |
author_facet |
Nadezhda Razjigaeva Larisa Ganzey Tatiana Grebennikova Vladimir Ponomarev Ludmila Mokhova Vladimir Chakov Mikhail Klimin |
author_sort |
Nadezhda Razjigaeva |
title |
Bioaerosols as Evidence of Atmospheric Circulation Anomalies over the Okhotsk Sea and Shantar Islands in the Late Glacial–Holocene |
title_short |
Bioaerosols as Evidence of Atmospheric Circulation Anomalies over the Okhotsk Sea and Shantar Islands in the Late Glacial–Holocene |
title_full |
Bioaerosols as Evidence of Atmospheric Circulation Anomalies over the Okhotsk Sea and Shantar Islands in the Late Glacial–Holocene |
title_fullStr |
Bioaerosols as Evidence of Atmospheric Circulation Anomalies over the Okhotsk Sea and Shantar Islands in the Late Glacial–Holocene |
title_full_unstemmed |
Bioaerosols as Evidence of Atmospheric Circulation Anomalies over the Okhotsk Sea and Shantar Islands in the Late Glacial–Holocene |
title_sort |
bioaerosols as evidence of atmospheric circulation anomalies over the okhotsk sea and shantar islands in the late glacial–holocene |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2022 |
url |
https://doi.org/10.3390/cli10020024 |
op_coverage |
agris |
geographic |
Okhotsk |
geographic_facet |
Okhotsk |
genre |
aleutian low okhotsk sea |
genre_facet |
aleutian low okhotsk sea |
op_source |
Climate; Volume 10; Issue 2; Pages: 24 |
op_relation |
https://dx.doi.org/10.3390/cli10020024 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/cli10020024 |
container_title |
Climate |
container_volume |
10 |
container_issue |
2 |
container_start_page |
24 |
_version_ |
1774712876013977600 |