NSF NCAR GDEX Dataset d090004

NOAA - Conventional Observation Reanalysis (CORe)

d090004

Abstract:

CORe is an atmospheric reanalysis from the Climate Prediction Center NCEP/NWS/NOAA with collaboration with Environmental Modeling Center NCEP/NWS/NOAA and Physical Sciences Laboratory NOAA. CORe is designed to replace CDAS (real-time extension to NCEP/NCAR Reanalysis - d090000 on GDEX). CORe covers a similar period of time (1950 to real time compare to 1948 to real time), and was designed for climate monitoring, one of the Climate Prediction Center's major goals. Unlike most modern reanalyses, CORe does not assimilate satellite data except for Atmospheric Motion Vectors (AMV). This was done to eliminate spurious "climate shifts" caused by the ingest of satellite data. This problem affected the earlier NCEP/NCAR and Climate Forecast System Reanalyses. This design emphasizes improving the climate trends and anomalies over getting the best state for a forecast.

Temporal Range:

1950-01-01 00:00 +0000 to 2026-10-13 03:00 +0000 (Entire dataset) Period details by dataset product Period details by dataset product 1950-01-01 00:00 +0000 to 2026-10-13 03:00 +0000 (3-hourly 2D Flux Data from 1950-current) 1950-01-01 00:00 +0000 to 2026-10-13 00:00 +0000 (3-hourly 3D Pressure Level Data from 1950-current) 1950-01-01 00:00 +0000 to 2026-10-12 21:00 +0000 (Daily 3D Pressure Level Data from 1950-current) 1950-01-01 00:00 +0000 to 2026-09-30 21:00 +0000 (Monthly 3D Pressure Level Data from 1950-current)

Updates:

Daily

Variables:

Air Mass/Density	Air Temperature	Boundary Layer Winds	Geopotential Height
Surface Winds	Upper Air Temperature	Upper Level Winds	Wind Dynamics

GRIB2 parameter table: HTML | XML

Vertical Levels:

See the detailed metadata for level information. See also the GRIB2 level table.

Data Types:

Grid

Spatial Coverage:

Longitude Range: Westernmost=180W Easternmost=180E
Latitude Range: Southernmost=89.463S Northernmost=89.463N Detailed coverage information Detailed coverage information 0.703° x ~0.702° from 0E to 359.297E and 89.463N to 89.463S (512 x 256 Longitude/Gaussian Latitude)

Data Contributors:

DOC/NOAA

Related Resources:

NWS notice of change from R1 to CORe
Historical reanalysis
Real-time NOMAD update site
CORe information provided from Climate Prediction Center/NCEP/NOAA
CORe information page on NOAA Open Data Dissemination (NODD)
FTP site for CDAS(R1) like CORe data

Total Volume:

9.02 TB (Entire dataset) Volume details by dataset product Volume details by dataset product 3-hourly 2D Flux Data from 1950-current: 2.67 TB 3-hourly 3D Pressure Level Data from 1950-current: 5.49 TB Daily 2D Flux Data from 1950-current: 222.51 GB Daily 3D Pressure Level Data from 1950-current: 623.37 GB Monthly 2D Flux Data from 1950-current: 7.22 GB Monthly 3D Pressure Level Data from 1950-current: 17.02 GB

Data Formats:

WMO GRIB2

Related GDEX Datasets:

d090000

NCEP/NCAR Global Reanalysis Products, 1948-continuing

d090002

NCEP/NCAR Reanalysis Monthly Mean Subsets (from DS090.0), 1948-continuing

More Details:

View a more detailed summary of the data, including specific date ranges and locations by parameter

Metadata Record:

Data License:

This work is licensed under a Creative Commons Attribution 4.0 International License.

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