Identification

Title

Arctic System Reanalysis (ASR) Project

Alternative title(s)

d631000

Abstract

<p>The Arctic System Reanalysis (ASR) is produced using a high-resolution version of the Polar Weather Forecast Model (PWRF) and High Resolution Land Data Assimilation (HRLDAS) systems that have been optimized for the Arctic. The final version of 30 km horizontal resolution data set which spans 2000-2012 is released in September 2014 and available on line through the NCAR's RDA. The interim version, released in May 2012, is also available for a limited period of time.</p><p>The final version has 29 pressure levels, 27 surface and 10 upper air analysis variables, 74 surface and 16 upper air forecast variables, and 3 soil 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.</p> <p> <font color="red"> <b>NOTE: This dataset has been superseded by the Arctic System Reanalysis version 2, which is available in RDA dataset <a href="https://rda.ucar.edu/datasets/ds631.1/">ds631.1</a>. Users are advised to access this newer dataset version.</b> </font> </p>

Resource type

dataset

Resource locator

https://gdex.ucar.edu/datasets/d631000/

protocol: https

name: Dataset Description

description: Related Link

function: information

https://gdex.ucar.edu/datasets/d631000/dataaccess/

protocol: https

name: Data Access

description: Related Link

function: download

Unique resource identifier

code

codeSpace

Dataset language

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

climatologyMeteorologyAtmosphere

Keywords

Keyword set

keyword value

dataset

originating controlled vocabulary

title

reference date

date type

revision

effective date

2021-03-30

Keyword set

keyword value

CLIMATE MODELS > CLIMATE MODELS

REANALYSIS MODELS

originating controlled vocabulary

title

reference date

date type

revision

effective date

2025-10-17

Keyword set

keyword value

ASR > BPRC Arctic System Reanalysis

originating controlled vocabulary

title

reference date

date type

revision

effective date

2025-10-17

Keyword set

keyword value

EARTH SCIENCE > AGRICULTURE > SOILS > SOIL TEMPERATURE

EARTH SCIENCE > ATMOSPHERE > ALTITUDE > GEOPOTENTIAL HEIGHT

EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE > SEA LEVEL PRESSURE

EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE > SURFACE TEMPERATURE > AIR TEMPERATURE

EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE > UPPER AIR TEMPERATURE

EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WATER VAPOR > WATER VAPOR INDICATORS > HUMIDITY

EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WATER VAPOR > WATER VAPOR INDICATORS > WATER VAPOR

EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > UPPER LEVEL WINDS

EARTH SCIENCE > OCEANS > SEA ICE > ICE DEPTH/THICKNESS

EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SNOW/ICE > SNOW DEPTH

originating controlled vocabulary

title

reference date

date type

revision

effective date

2025-10-17

Geographic location

West bounding longitude

0.0020579060720820053

East bounding longitude

-0.00391995224032371

North bounding latitude

89.79553469068475

South bounding latitude

24.71574933618932

Temporal reference

Temporal extent

Begin position

2000-01-01T0000+00

End position

2012-12-31T2100+00

Dataset reference date

date type

publication

effective date

2012-07-31

Frequency of update

notPlanned

Quality and validity

Lineage

Conformity

Data format

name of format

version of format

Constraints related to access and use

Constraint set

Use constraints

Creative Commons Attribution 4.0 International License

Limitations on public access

None

Responsible organisations

Responsible party

organisation name

email address

datahelp@ucar.edu

responsible party role

pointOfContact

Metadata on metadata

Metadata point of contact

organisation name

NSF NCAR Geoscience Data Exchange

email address

datahelp@ucar.edu

web address

https://gdex.ucar.edu

name: NSF NCAR Geoscience Data Exchange

description: The Geoscience Data Exchange (GDEX), managed by the Computational and Information Systems Laboratory (CISL) at NSF NCAR, contains a large collection of meteorological, atmospheric composition, and oceanographic observations, and operational and reanalysis model outputs, integrated with NSF NCAR High Performance Compute services to support atmospheric and geosciences research.

function: download

responsible party role

pointOfContact

Metadata date

2025-10-22T20:18:20Z

Metadata language