MERRA Data

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MERRA is an abbreviation for Modern Era Retrospective-Analysis for Research and Applications. The datasetsoriginates from the Global Modeling and Assimilation Office of NASA / Goddard Space Flight Center.The MERRA analysis are being conducted with the GEOS-5 Atmospheric Data Assimilation System(ADAS).

Resolution and Coverage

The model grid is 0.5 degree latitude and 2/3 degree longitude. It holds 1 hourly values with a global coverage.

Data Availability

The following parameters are available from within the online-dataservices WindPRO. Please note that the The displacement height is the height at which the log wind profile projects the wind to be zero. See more at the MERRA-FAQ.

Table: Overview of QuikScat Dataset Parameters.
Parameter Description
time UTC time sStamp
pressure Sea level pressure
temperature Temperature at 2 m above the displacement height
wDir Wind direction at 50 m above surface
wSpeed Wind speed at 50 m above surface
dispHeight Displacement height

External Links

The full MERRA data-set is available at http://gmao.gsfc.nasa.gov/research/merra/ The MERRA-FAQ is available at: http://gmao.gsfc.nasa.gov/research/merra/faq.php

Acknowledgement

The Global Modeling and Assimilation Office (GMAO) for the MERRA-analysis and the GES DISC for the dissemination of MERRA.