Arctic System Reanalysis version 2

| DOI: 10.5065/D6X9291B

The Arctic System Reanalysis (ASR) is produced using a high-resolution version of the Polar Weather Research and Forecasting Model (PWRF) and High Resolution Land Data Assimilation (HRLDAS) systems that have been optimized for the Arctic. The final version of 15 km horizontal resolution data set which spans 2000-2016 is available on line through the NCAR's RDA. Similar to ASR version 1, ASR version 2 has 34 pressure levels (71 model levels), 31 surface (including 3 soil variables) and 11 upper air analysis variables, 71 surface (including 3 soil variables) and 17 upper air forecast variables. Both the u- and v- winds relative to grid and relative to earth are present in the final version. The wind speed is also added.

ASR version 2 will be updated through 2019, then reran (2000-2019) using the most recent version of Polar WRF and WRFDA plus many other enhancements. This newer version, ASR version 2.5, should be available starting in mid-2020 and will be kept up-to-date through 2020 with a delay of about 3 months.

Temporal Range:
2000-01-01 00:00 +0000 to 2016-12-31 21:00 +0000 (Entire dataset) Period details by dataset product
Air Temperature Albedo Albedo Canopy Characteristics
Cloud Fraction Emissivity Geopotential Height Heat Flux
Humidity Ice Depth/Thickness Land Use/Land Cover Classification Longwave Radiation
Outgoing Longwave Radiation Planetary Boundary Layer Height Precipitation Amount Runoff
Sea Ice Concentration Sea Level Pressure Sea Surface Temperature Shortwave Radiation
Skin Temperature Snow Cover Snow Depth Snow Water Equivalent
Soil Classification Soil Moisture/Water Content Soil Temperature Surface Pressure
Surface Temperature Surface Winds Vertical Wind Velocity/Speed
Vertical Levels:
See the detailed metadata for level information.
Data Types:
Spatial Coverage:
Longitude Range: Westernmost=180W Easternmost=180E
Latitude Range: Southernmost=24.643N Northernmost=90N Detailed coverage information
Data Contributors:
National Center for Atmospheric Research, University Corporation for Atmospheric Research
Polar Meterology Group, Byrd Polar and Climate Research Center, The Ohio State University
Total Volume:
53.09 TB (Entire dataset) Volume details by dataset product
Data Formats:
Related RDA Datasets:
Arctic System Reanalysis (ASR) Project
More Details:
View a more detailed summary of the data, including specific date ranges and locations by parameter
Metadata Record:
Data License:
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