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A new regional climate model for POLAR-CORDEX : evaluation of a 30-year hindcast with COSMO-CLM2 over Antarctica
- Source :
- JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
- Publication Year :
- 2019
-
Abstract
- Continent-wide climate information over the Antarctic Ice Sheet (AIS) is important to obtain accurate information of present climate and reduce uncertainties of the ice sheet mass balance response and resulting global sea level rise to future climate change. In this study, the COSMO-CLM2 Regional Climate Model is applied over the AIS and adapted for the specific meteorological and climatological conditions of the region. A 30-year hindcast was performed and evaluated against observational records consisting of long-term ground-based meteorological observations, automatic weather stations, radiosoundings, satellite records, stake measurements and ice cores. Reasonable agreement regarding the surface and upper-air climate is achieved by the COSMO-CLM2 model, comparable to the performance of other state-of-the-art climate models over the AIS. Meteorological variability of the surface climate is adequately simulated, and biases in the radiation and surface mass balance are small. The presented model therefore contributes as a new member to the COordinated Regional Downscaling EXperiment project over the AIS (POLAR-CORDEX) and the CORDEX-CORE initiative.
- Subjects :
- Atmospheric Science
DRONNING MAUD LAND
SURFACE MASS-BALANCE
ICE-SHEET
Antarctic ice sheet
Glacier mass balance
Ice core
Earth and Planetary Sciences (miscellaneous)
Hindcast
Precipitation
TEMPERATURE
KATABATIC WINDS
geography
ATMOSPHERIC BOUNDARY-LAYER
geography.geographical_feature_category
evaluation
EAST ANTARCTICA
regional climate model
POLAR-CORDEX
SNOW ACCUMULATION
Geophysics
Space and Planetary Science
Climatology
Earth and Environmental Sciences
PRECIPITATION
Environmental science
Antarctica
Climate model
Ice sheet
DOME-C
Downscaling
Subjects
Details
- Language :
- English
- ISSN :
- 2169897X and 21698996
- Database :
- OpenAIRE
- Journal :
- JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
- Accession number :
- edsair.doi.dedup.....27fca4348b1c9ee6c244c3d60b96416d