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ERA-40 Global Land Surface Observation Feedback Record Reports

ERA-40 Global Land Surface Observation Feedback Record Reports include 3 hourly surface observation feedback record reports from SYNOP land observations used in the ECMWF 45-year reanalysis (ERA-40) covering the period from September 1957 to August 2002. SYNOP land observations, from multiple data sources, were assimilated into an ECMWF model and produced ERA-40. Select variables include pressure, height, relative humidity, U-wind, and V-wind speed components. The metadata generated during the ERA-40 quality control (QC)/data assimilation process were appended to the input observations. The final combination of input observations and feedback metadata are called feedback record reports.

More information is available.


PERIODS: 1957-09-01 to 2002-08-31
ACCESS:

We are allowed to distribute this data to US scientists, scientists visiting US organizations, and Canadian scientists affiliated with UCAR member organizations only.

USAGE:

This data must not be used for commercial purposes. ECMWF must be given credit in any publications in which this data is used.

VARIABLES:
Air TemperatureAtmospheric Pressure MeasurementsDew Point TemperatureGeopotential Height
HumidityUpper Level Winds  
LEVELS:
Ground or water surfaceMean sea level2 m
TIMES: Every 3 hours Every 6 hours
TYPES: Location Platform Observation
SOURCES: ECMWF
European Centre for Medium-Range Weather Forecasts
RELATED SITES: ECMWF's ERA-40 home page
PUBLICATIONS: ERA40 Report Series
Recommended acknowledgement for this dataset:
"The data for this study are from the Research Data Archive (RDA) which is maintained by the Computational and Information Systems Laboratory (CISL) at the National Center for Atmospheric Research (NCAR). NCAR is sponsored by the National Science Foundation (NSF). The original data are available from the RDA (http://dss.ucar.edu) in dataset number ds476.0."
VOLUME: 203.19 GBytes (Entire dataset)
Volume details by subset
DATA FORMATS: ASCII
RELATED DATASETS: ds366.0 - ERA-40 Global Upper Air Radiosonde Observation Feedback Record Reports

CONTACT: For assistance with this dataset, please contact Doug Schuster (303-497-1216) . If the specialist is unavailable, please contact Data Help.
DATA ACCESS: Click the tab here or in the navigation bar at the top of the page.
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