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- | ====== CLIPC - Bias-corrected data by Met.no ====== | + | ====== CLIPC Bias-Correction====== |
+ | ===== Available bias-corrected data ===== | ||
- | This page documents the datasets produced | + | Bias-corrected EUR-44 CORDEX and EUR-11 CORDEX RCM data made by SMHI, IPSL and Met Norway for CLIPC are now **available** (with others) through |
- | ”D6.1 : Climate model data for Europe, bias-corrected when necessary, for CCII-T1 calculation. Documented dataset”, | + | More information can be found [[http://www.cordex.org/ |
- | focussing on bias-corrected data at three different resolutions: | + | |
- | - Global climate model (GCM) data interpolated to a common 2° × 2° grid, | + | |
- | - Regional climate model (RCM) data at the EURO-CORDEX 0.44° (~ 50 km × 50 km) grid, and | + | |
- | - RCM data at the EURO-CORDEX 0.11° (~ 12 km × 12 km) grid. | + | |
- | ===== News ===== | + | PLEASE REPORT to [[andreas.dobler@met.no|Andreas Dobler]], if you find something strange or errors in the Met Norway data. |
- | * Bias corrected EUR11-CORDEX RCM data are now available | + | Please have a look at some [[evaluation]] plots considering the bias-corrected data from Met Norway. |
+ | An overview on the bias-corrected data from Met Norway can be found here {{: | ||
+ | ===== Project and deliverable summary ===== | ||
- | \\ | + | [[http:// |
- | \\ | + | |
+ | **This page** documents the datasets produced by the Meteorologisk institutt within [[http:// | ||
+ | - Bias-corrected regional climate model (RCM) data at the EURO-CORDEX 0.11° (~ 12 km × 12 km) grid | ||
+ | - Bias-corrected RCM data at the EURO-CORDEX 0.44° (~ 50 km × 50 km) grid | ||
+ | - Bias-corrected global climate model (GCM) data interpolated to a common 2° × 2° grid, | ||
+ | |||
+ | The Meteorologisk institutt provides bias-corrected data at the EURO-CORDEX 0.11° and the EURO-CORDEX 0.44° grid. These will also contribute to the Bias Correction Intercomparison Project [[http:// | ||
+ | |||
+ | |||
+ | ===== Terms of use===== | ||
+ | |||
+ | All EURO-CORDEX simulations are published under the [[http:// | ||
+ | * All simulations have non-restricted use | ||
+ | |||
+ | We acknowledge the following grants and work. Please acknowledge/ | ||
+ | * The CLIPC EU project (grant agreement #607418) | ||
+ | * The EURO4M FP7 project (grant agreement #242093) and Hāggmark, L., Ivarsson, K.-I., Gollvik, S. and Olofsson, P.-O., 2000: MESAN, an operational mesoscale analysis system. Tellus A, 52: 2–20. doi: 10.1034/ | ||
+ | * Gudmundsson, | ||
+ | |||
+ | ===== Description of the Met Norway method ===== | ||
+ | The method from the Meteorologisk institutt uses the R package [[http:// | ||
\\ | \\ | ||
+ | |||
+ | * For the bias-corrected EUR-11 CORDEX data, the [[http:// | ||
+ | * For the bias-corrected EUR-44 CORDEX data, the [[http:// | ||
+ | |||
+ | (Scripts etc.: [[procedure]]) | ||
+ | |||
+ | ===== Known issues ===== | ||
+ | Please note the following: | ||
+ | * There is a small remaining overall bias due to the use of “only” 101 quantiles to estimate the empirical cumulative distribution functions within qmap. See pdfs on [[evaluation]]. | ||
+ | * There are additional remaining seasonal biases due to the calibration process which is carried out without splitting into seasons or months. See pdfs on [[evaluation]]. | ||
+ | * The bias-correction method does not guarantee the conservation of climate change signals. The impact on the projected changes in mean conditions is relatively small, as can be seen here:\\ | ||
+ | {{: | ||
+ | {{: | ||
+ | {{: | ||
+ | |||
+ | * There are some days in the MESAN data when tasmax < tas or tas < tasmin. In the current set-up this is handed down to the bias-corrected data. | ||
+ | |||
+ | While the first three points are a result of the idea to keep the method **very** simple (at least for the beginning), the last point is under investigation and may be fixed in a later version. | ||
+ | |||
---- | ---- | ||
- | andreas.dobler@met.no | + | //[[andreas.dobler@met.no|Andreas Dobler]] 2015/07/15 11:00// |
+ | |||