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ERA40 Model Resolution Gridded Surface, Vertical Integrals, and Other Single Level Fields from ECMWF

The ECMWF Re-Analysis (ERA40) is a global atmospheric analysis of many conventional observations and satellite data streams for the period Sept,1957- Aug,2002. There are numerous data products that are separated into dataset series based on resolution, vertical coordinate reference, and likely research applications. Descriptions of the series organization and direct links to information about all ERA40 products are available.

This dataset has been segmented into 4 archives:

Surface - 46 mostly surface and near surface fields, including 10m wind, 2m air temp, soil temp and moisture, cloud cover info
Vertical Integrals - 35 fields including column water vapor, column ozone, kinetic energy
Other - 27 fields, including precip, fluxes, radiation, stresses
LNSP - Log of the surface pressure

All data are archived on an N80 reduced gaussian grid 4x a day.

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PERIODS:

1957-09-01 00:00 +0000 to 2002-09-01 00:00 +0000 (Entire dataset)

Period details by subset

Period details by subset:
1957-09-01 00:00 +0000 to 2002-08-31 18:00 +0000 (Primary surface archive)
1957-09-01 00:00 +0000 to 2002-08-31 18:00 +0000 (Vertical Integrals)
1957-09-01 00:00 +0000 to 2002-08-31 18:00 +0000 (This is a subset of the Primary surface archive)
1957-09-01 06:00 +0000 to 2002-09-01 00:00 +0000 (Contains the fields which are accumlated over a forecast period)
1957-09-01 00:00 +0000 to 2002-08-31 18:00 +0000 (Log of the Surface Pressure)
1957-09-01 00:00 +0000 to 2002-08-31 18:00 +0000 (Orography)

ACCESS:

U.S. scientists and scientists visiting UCAR member institutions can use the data. You are required to submit a permission form before access is granted.

USAGE:

The data can be used for non-commercial research only.

VARIABLES:

Albedo	Anisotropy	Cloud Amount/Frequency	Dew Point Temperature
Evaporation	Geopotential Height	Gravity Wave	Heat Flux
Ice Extent	Incoming Solar Radiation	Longwave Radiation	Outgoing Longwave Radiation
Planetary Boundary Layer Height	Precipitable Water	Precipitation Amount	Runoff
Sea Level Pressure	Sea Surface Temperature	Shortwave Radiation	Skin Temperature
Snow	Snow Density	Snow Depth	Snow Melt
Snow/Ice Temperature	Soil Moisture/Water Content	Soil Temperature	Surface Air Temperature
Surface Pressure	Surface Roughness	Surface Winds	Tropospheric Ozone
Vegetation Cover	Vegetation Species	Water Vapor	Wind Stress

GRIB parameter table

LEVELS:

See the detailed metadata for level information

TYPES:

Grid

COVERAGE:

Longitude Range: Westernmost=180W Easternmost=180E
Latitude Range: Southernmost=89.142S Northernmost=89.142N

Detailed coverage information

Detailed coverage information:
1.125° x ~1.121° from 0E to 358.875E and 89.141N to 89.141S (reduced n80 Gaussian Latitude/Longitude) (Contains the fields which are accumlated over a forecast period)
1.125° x ~1.121° from 0E to 358.875E and 89.142N to 89.142S (reduced n80 Gaussian Latitude/Longitude) (Log of the Surface Pressure)
1.125° x ~1.121° from 0E to 358.875E and 89.141N to 89.141S (reduced n80 Gaussian Latitude/Longitude) (Orography)
1.125° x ~1.121° from 0E to 358.875E and 89.141N to 89.141S (reduced n80 Gaussian Latitude/Longitude) (Primary surface archive)
1.125° x ~1.121° from 0E to 358.875E and 89.141N to 89.141S (reduced n80 Gaussian Latitude/Longitude) (This is a subset of the Primary surface archive)
1.125° x ~1.121° from 0E to 358.875E and 89.142N to 89.142S (reduced n80 Gaussian Latitude/Longitude) (Vertical Integrals)

SOURCES:

ECMWF

European Centre for Medium-Range Weather Forecasts

RELATED SITES:

ECMWF's ERA web site

VOLUME:

542.37 GBytes (Entire dataset)

Volume details by subset

Volume details by subset:
Log of the Surface Pressure: 4.76 GBytes
Orography: 4.72 GBytes
Contains the fields which are accumlated over a forecast period: 127.56 GBytes
Primary surface archive: 215.19 GBytes
This is a subset of the Primary surface archive: 23.62 GBytes
Vertical Integrals: 166.51 GBytes

FORMATS:

WMO GRIB1

CONTACT:

For assistance with this dataset, please contact Joey Comeaux (303-497-1256) . If the specialist is unavailable, please contact Data Help.

METADATA:

View more detailed metadata for this dataset

DATA ACCESS:

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tab here or in the navigation bar at the top of the page.

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