North Atlantic Winter Storm Activity in Modern Reanalyses and Pressure-Based Observations
This study analyzes changes in extratropical windstorms over the North Atlantic during the last decades. We assessed and compared North Atlantic winter storm activity in a comprehensive approach from three different data sources: modern reanalysis data sets, a dynamically downscaled high-resolution...
Published in: | Journal of Climate |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
AMS
2021
|
Subjects: | |
Online Access: | https://publications.hereon.de/id/39395 https://publications.hzg.de/id/39395 https://doi.org/10.1175/JCLI-D-20-0529.1 |
id |
fthzgzmk:oai:publications.hereon.de:39395 |
---|---|
record_format |
openpolar |
spelling |
fthzgzmk:oai:publications.hereon.de:39395 2023-06-11T04:14:18+02:00 North Atlantic Winter Storm Activity in Modern Reanalyses and Pressure-Based Observations Feser, F. Krueger, O. Woth, K. van Garderen, L. 2021 https://publications.hereon.de/id/39395 https://publications.hzg.de/id/39395 https://doi.org/10.1175/JCLI-D-20-0529.1 en eng AMS https://dx.doi.org/10.1175/JCLI-D-20-0529.1 urn:issn:0894-8755 https://publications.hereon.de/id/39395 https://publications.hzg.de/id/39395 info:eu-repo/semantics/openAccess open_access oa_allgemein_hybrid issn:0894-8755 Feser, F.; Krueger, O.; Woth, K.; van Garderen, L.: North Atlantic Winter Storm Activity in Modern Reanalyses and Pressure-Based Observations. In: Journal of Climate. Vol. 34 (2021) 7, 2411 - 2428. (DOI: /10.1175/JCLI-D-20-0529.1) info:eu-repo/semantics/article Zeitschrift Artikel 2021 fthzgzmk https://doi.org/10.1175/JCLI-D-20-0529.1 2023-05-28T23:25:08Z This study analyzes changes in extratropical windstorms over the North Atlantic during the last decades. We assessed and compared North Atlantic winter storm activity in a comprehensive approach from three different data sources: modern reanalysis data sets, a dynamically downscaled high-resolution global atmospheric climate simulation, and observations. The multi-decadal observations comprise both a storm index derived from geostrophic wind speed triangles and an observational record of low pressure systems counted from weather analyses. Both observational data sets have neither been compared to the most recent reanalyses nor to the downscaled global climate simulation with respect to North Atlantic winter storms before. The similarity of the geostrophic wind speed storm index to reanalyzed high wind speed percentiles and storm numbers confirms its suitability to describe storm frequencies and intensities for multi-decadal time scales. The results show that high wind speeds, storm numbers, and spatial storm track distributions are generally alike in high-resolution reanalyses and downscaled data sets and they reveal an increasing similarity to observations over time. Strong decadal and multi-decadal variability emerged in high wind speed percentiles and storm frequency, but no long-term changes for the last decades were detected. Article in Journal/Newspaper North Atlantic Hereon Publications (Helmholtz-Zentrum) Journal of Climate 34 7 2411 2428 |
institution |
Open Polar |
collection |
Hereon Publications (Helmholtz-Zentrum) |
op_collection_id |
fthzgzmk |
language |
English |
description |
This study analyzes changes in extratropical windstorms over the North Atlantic during the last decades. We assessed and compared North Atlantic winter storm activity in a comprehensive approach from three different data sources: modern reanalysis data sets, a dynamically downscaled high-resolution global atmospheric climate simulation, and observations. The multi-decadal observations comprise both a storm index derived from geostrophic wind speed triangles and an observational record of low pressure systems counted from weather analyses. Both observational data sets have neither been compared to the most recent reanalyses nor to the downscaled global climate simulation with respect to North Atlantic winter storms before. The similarity of the geostrophic wind speed storm index to reanalyzed high wind speed percentiles and storm numbers confirms its suitability to describe storm frequencies and intensities for multi-decadal time scales. The results show that high wind speeds, storm numbers, and spatial storm track distributions are generally alike in high-resolution reanalyses and downscaled data sets and they reveal an increasing similarity to observations over time. Strong decadal and multi-decadal variability emerged in high wind speed percentiles and storm frequency, but no long-term changes for the last decades were detected. |
format |
Article in Journal/Newspaper |
author |
Feser, F. Krueger, O. Woth, K. van Garderen, L. |
spellingShingle |
Feser, F. Krueger, O. Woth, K. van Garderen, L. North Atlantic Winter Storm Activity in Modern Reanalyses and Pressure-Based Observations |
author_facet |
Feser, F. Krueger, O. Woth, K. van Garderen, L. |
author_sort |
Feser, F. |
title |
North Atlantic Winter Storm Activity in Modern Reanalyses and Pressure-Based Observations |
title_short |
North Atlantic Winter Storm Activity in Modern Reanalyses and Pressure-Based Observations |
title_full |
North Atlantic Winter Storm Activity in Modern Reanalyses and Pressure-Based Observations |
title_fullStr |
North Atlantic Winter Storm Activity in Modern Reanalyses and Pressure-Based Observations |
title_full_unstemmed |
North Atlantic Winter Storm Activity in Modern Reanalyses and Pressure-Based Observations |
title_sort |
north atlantic winter storm activity in modern reanalyses and pressure-based observations |
publisher |
AMS |
publishDate |
2021 |
url |
https://publications.hereon.de/id/39395 https://publications.hzg.de/id/39395 https://doi.org/10.1175/JCLI-D-20-0529.1 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
issn:0894-8755 Feser, F.; Krueger, O.; Woth, K.; van Garderen, L.: North Atlantic Winter Storm Activity in Modern Reanalyses and Pressure-Based Observations. In: Journal of Climate. Vol. 34 (2021) 7, 2411 - 2428. (DOI: /10.1175/JCLI-D-20-0529.1) |
op_relation |
https://dx.doi.org/10.1175/JCLI-D-20-0529.1 urn:issn:0894-8755 https://publications.hereon.de/id/39395 https://publications.hzg.de/id/39395 |
op_rights |
info:eu-repo/semantics/openAccess open_access oa_allgemein_hybrid |
op_doi |
https://doi.org/10.1175/JCLI-D-20-0529.1 |
container_title |
Journal of Climate |
container_volume |
34 |
container_issue |
7 |
container_start_page |
2411 |
op_container_end_page |
2428 |
_version_ |
1768392234160357376 |