Gutjahr, Oliver; Heinemann, Günther (2018): Extreme indices and return levels of daily maximum 10m wind speed in the Arctic and around Greenland [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.892874
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Abstract:
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).
Related to:
Gutjahr, Oliver; Heinemann, Günther (2018): A model-based comparison of extreme winds in the Arctic and around Greenland. assigned doi:10.1002/joc.5729, International Journal of Climatology
Coverage:
Latitude: 90.000000 * Longitude: 0.000000
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | File content | Content | Gutjahr, Oliver | |||
| 2 | File name | File name | Gutjahr, Oliver | |||
| 3 | File format | File format | Gutjahr, Oliver | within zip file | ||
| 4 | File size | File size | kByte | Gutjahr, Oliver | of zip file | |
| 5 | Uniform resource locator/link to file | URL file | Gutjahr, Oliver |
License:
Creative Commons Attribution-NonCommercial 3.0 Unported (CC-BY-NC-3.0)
Size:
10 data points
Data
| 1 Content | 2 File name | 3 File format | 4 File size [kByte] | 5 URL file |
|---|---|---|---|---|
| Average numbers of strong gale (≥ 20.5 m/s) and hurricane days (≥ 32.5 m/s) per winter (Nov-Apr, 2000-2012, partly 1979-2016), based on 10m daily maximum wind speeds | extreme_indices.zip | netCDF | 14399.463 | extreme_indices.zip |
| Return levels (2,5,10,20 years) of 10m daily maximum wind speeds and parameters (95% and 99% percentile thresholds, scale/shape and decorrelation time ''''run_length'''') of fitted General Pareto distributions, based on the winters (Nov-Apr) 2000-2012 | pot.zip | netCDF | 79638.763 | pot.zip |