Name: Arctic regional reanalysis on model levels from 1991 to present
Creator: ECMWF
Published: 2021-03-10T00:00:00Z
License: https://spdx.org/licenses/CC-BY-4.0

The C3S Arctic Regional Reanalysis (CARRA) dataset contains hourly data including 3-hourly analyses and hourly short term forecasts of atmospheric model level meteorological variables (temperature, humidity, wind, cloud, precipitation and turbulent kinetic energy) at 2.5 km resolution. Additionally, forecasts up to 30 hours initialised from the analyses at 00 and 12 UTC are available.
The dataset includes two domains. The West domain covers Greenland, the Labrador Sea, Davis Strait, Baffin Bay, Denmark Strait, Iceland, Jan Mayen, the Greenland Sea and Svalbard. The East domain covers Svalbard, Jan Mayen, Franz Josef Land, Novaya Zemlya, the Barents Sea, and the northern parts of the Norwegian Sea and Scandinavia.
The dataset has been produced with the use of the HARMONIE-AROME state-of-the-art non-hydrostatic regional numerical weather prediction model. High resolution reanalysis for the Arctic region is particularly important because climate change is more pronounced in the Arctic region than elsewhere in on Earth. This fact calls for a better description of this region providing additional details with respect to the global reanalyses (ERA5 for instance). The additional information is provided by the higher horizontal resolution, more local observations (from the Nordic countries and Greenland), a better description of surface characteristics (high resolution satellite and physiographic data), high resolution non-hydrostatic dynamics and improved physical parameterisation of clouds and precipitation in particular.
The inputs to CARRA reanalysis are the observations, the ERA5 global reanalysis as lateral boundary conditions and the physiographic datasets describing the surface characteristics of the model. The observation values and information about their quality are used together to constrain the reanalysis where observations are available and provide information for the data assimilation system in areas in where fewer observations are available.
More details about the reanalysis dataset and the extensive input data are given in the Documentation section.

Quality assessment of the dataset

CC-BY licence

pan-Arctic regional reanalysis sub-daily data from 1986 to present

Arctic regional reanalysis on height levels from 1991 to present

Arctic regional reanalysis on single levels from 1991 to present

Arctic regional reanalysis on pressure levels from 1991 to present

Arctic regional reanalysis daily and monthly data from 1991 to present

pan-Arctic regional reanalysis daily and monthly data from 1986 to present

All active messages on Arctic regional reanalysis on model levels from 1991 to present

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Arctic regional reanalysis on model levels from 1991 to present

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https://object-store.os-api.cci2.ecmwf.int:443/cci2-prod-catalogue/licences/cc-by/cc-byv1_2b61eb0b42e053566cb9447c1d2847a69a275c095e00fca00bad1bf5326a9432.md

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