NASA JPL Physical Oceanography Distributed Active Archive Center

nasa-podaac-ascata-l2-12-5km

MetOp-A ASCAT Level 2 12.5km Ocean Surface Wind Vectors

This dataset contains operational near-real-time Level 2 ocean surface wind vector retrievals from the Advanced Scatterometer (ASCAT) on MetOp-A at 12.5 km sampling resolution (note: the effective resolution is 25 km). It is a product of the European Organization for the Exploitation of Meteorological Satellites (EUMETSAT) Ocean and Sea Ice Satellite Application Facility (OSI SAF) provided through the Royal Netherlands Meteorological Institute (KNMI). The wind vector retrievals are currently processed using the CMOD.n geophysical model function using a Hamming filter to spatially average the Sigma-0 data in the ASCAT L1B data. Each file is provided in netCDF version 3 format, and contains one full orbit derived from 3-minute orbit granules. Latency is approximately 2 hours from the latest measurement. The beginning of the orbit is defined by the first wind vector cell measurement within the first 3-minute orbit granule that starts north of the Equator in the ascending node. ASCAT is a C-band dual fan beam radar scatterometer providing two independent swaths of backscatter retrievals in sun-synchronous polar orbit aboard the MetOp-A platform. For more information on the MetOp mission, please visit: http://podaac.jpl.nasa.gov/OceanWind/MetOp . All intellectual property rights of the OSI SAF products belong to EUMETSAT. The use of these products is granted to every interested user, free of charge. If you wish to use these products, EUMETSAT's copyright credit must be shown by displaying the words "copyright (year) EUMETSAT" on each of the products used. Special note: as of 28 April 2015, this production of this dataset has been permanently discontinued. For continued access to near-real-time ASCAT 12.5 km data from MetOp-A, it is highly suggested for users to transition toward the MetOp-A ASCAT Level 2 Ocean Surface Wind Vectors Optimized for Coastal Ocean dataset, which is available here: http://podaac.jpl.nasa.gov/dataset/ASCATA-L2-Coastal.

podaac.jpl.nasa.gov

http://podaac.jpl.nasa.gov/dataset/ASCATA-L2-12.5km

Identified by : ASCATA-L2-12.5km

This dataset was released on June 13, 2013.

The time range for this dataset is March 02, 2009 (16:54 PM) to April 28, 2015 (04:23 AM).

The spatial range for this dataset is -89.6° to 89.6° latitude, and 0° to 360° longitude. map (center)

This dataset uses data from an instance of the advanced-scatterometer instrument on the meteorological-operational-polar-satellite-a platform.

Also known as :

• dataset ASCATA-L2-12.5km (podaac lexicon)
• datasetId PODAAC-ASOP2-12X01 (podaac lexicon)