Extreme indices and return levels of daily maximum 10m wind speed in the Arctic and around Greenland
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| Autores principales: | , |
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| Formato: | Dataset Open Access |
| Lenguaje: | en |
| Publicado: |
PANGAEA
2018
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| _version_ | 1867169129366028288 |
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| author | Gutjahr, Oliver Heinemann, Günther |
| author_facet | Gutjahr, Oliver Heinemann, Günther |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | A polar-adjusted version of the regional climate model COSMO-CLM was used at a horizontal resolution of about 15km (0.125°; C15) to simulate and analyse extreme 10m wind speeds from 1979-2016 in winter (Nov to Apr) in the Arctic and around Greenland. Based on daily maximum 10m wind speeds, extreme indices (95% percentiles, average strong gale and hurricane days per winter) and return levels up to the 20year return period are calculated and compared with state-of-the-art reanalysis data sets (ERA-Interim, ASR version 1 and 2) and with the satellite product CCMP version 2. The return levels were calculated by the 'peaks-over-threshold' (POT) method which fits a General Pareto distribution (GPD) to extreme values exceeding a specified high threshold (for this study the local 95% and 99% percentiles). The model comparison was based on the overlapping winter period 2000-2012 (Nov to Apr). Before the analysis all data sets were interpolated onto the rotated model grid of C15 (450x350 grid boxes, with the rotated pole located at 100°W and 0°N). |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_892874 |
| institution | PANGAEA |
| language | en |
| publishDate | 2018 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Extreme indices and return levels of daily maximum 10m wind speed in the Arctic and around Greenland Gutjahr, Oliver Heinemann, Günther Arctic; File content; File format; File name; File size; pan-Arctic; Uniform resource locator/link to file A polar-adjusted version of the regional climate model COSMO-CLM was used at a horizontal resolution of about 15km (0.125°; C15) to simulate and analyse extreme 10m wind speeds from 1979-2016 in winter (Nov to Apr) in the Arctic and around Greenland. Based on daily maximum 10m wind speeds, extreme indices (95% percentiles, average strong gale and hurricane days per winter) and return levels up to the 20year return period are calculated and compared with state-of-the-art reanalysis data sets (ERA-Interim, ASR version 1 and 2) and with the satellite product CCMP version 2. The return levels were calculated by the 'peaks-over-threshold' (POT) method which fits a General Pareto distribution (GPD) to extreme values exceeding a specified high threshold (for this study the local 95% and 99% percentiles). The model comparison was based on the overlapping winter period 2000-2012 (Nov to Apr). Before the analysis all data sets were interpolated onto the rotated model grid of C15 (450x350 grid boxes, with the rotated pole located at 100°W and 0°N). |
| title | Extreme indices and return levels of daily maximum 10m wind speed in the Arctic and around Greenland |
| topic | Arctic; File content; File format; File name; File size; pan-Arctic; Uniform resource locator/link to file |
| url | https://doi.org/10.1594/PANGAEA.892874 |