METimage A Spot

New versions of EPS-SG METimage test data released

 

METimage A Spot
METimage A Spot

New versions of EPS-SG METimage L1B and L2 data have been released for format familiarisation.

Last Updated

21 January 2022

Published on

21 January 2022

This release is an update to a previously delivered METimage L1B and L2 test dataset (V1) that was released to users in 2020.

The EPS-SG Visible Infrared Imager (METimage) will provide continuity to the AVHRR series on board the Metop and NOAA satellites, and VIIRS on board NOAA satellites.

L1B test data description

The L1 test data is available here:

https://sftp.eumetsat.int/public/folder/UsCVknVOOkSyCdgpMimJNQ/User-Materials/Test-Data/EPS-SG/EPSSG-TestDataPackage_V2/METimage/L1B/EPSSG_METimage_L1B_TestDataV2.tar.Z

The METimage L1B spectral radiance product is generated using the latest version of the Ground Processor Prototype and the test data package covers three orbits of data. Two of these orbits are in succession, allowing for the retrieval of atmospheric motion vectors for the overlapping regions at the Poles. The first two orbits cover summer season and the third orbit covers winter season The selected granules cover a variety of basic scenarios including:

  • Clear and cloudy scenes.
  • Land, sea, and coastlines areas.
  • Snow/ice covered areas.
  • North polar areas.
  • Day, twilight and night time illumination conditions.

The content and format of these products is in line with the specifications in the following documents, released together with this package.

EPS-SG VII L1B Product Format Specification (V4A)

EPS-SG Generic Product Format Specification (V4)

The Readme file gives more information on the data package.

L2 test data description

The L2 test data is available here:

https://sftp.eumetsat.int/public/folder/UsCVknVOOkSyCdgpMimJNQ/User-Materials/Test-Data/EPS-SG/EPSSG-TestDataPackage_V2/METimage/L2/EPSSG_METimage_L2_TestDataV2.tar.Z

The L2 Cloud Mask test data is available here:

https://sftp.eumetsat.int/public/folder/UsCVknVOOkSyCdgpMimJNQ/User-Materials/Test-Data/EPS-SG/EPSSG-TestDataPackage_V2/METimage/L2CM/EPSSG_METimage_L2CM_TestDataV2.tar.Z

The METimage L2 test data V2 is generated using the most recent version of the in-house Multi Satellite Prototype Processor (MSPS) and the METimage L1B test data V2 as input.

The L2 test data package consists of the following group of products:

  • VII-L2-CLD -VII L2 cloud detection/probability.
  • VII-02-WVV - VII L2 Total Precipitable Water product (from visible/near-IR observations).
  • VII-02-WVI - VII L2 Total Precipitable Water product (from IR observations).
  • VII-02-CTP - VII L2 cloud top pressure, height and optical thickness from VII observations in the O2 A-band.
  • VII-02-OCA - VII L2 cloud optical and microphysical properties, cloud Liquid/Ice Water Path (LWP, IWP) and Volcanic Ash (VA) product.
  • VII-02-AMV - VII L2 Atmospheric Motion Vectors product.

More details on the content of these products and their format specification are described in the following documents, released together with this package.

EPS-SG VII L2 Cloud Mask Product Format Specification (V4A)

EPS-SG VII L2 Product Format Specification (V4B)

EPS-SG Generic Product Format Specification (V4)

The Readme file gives more information on the data package.

Note: all old versions are obsolete for format familiarisation purposes. These test data are only intended for format familiarisation and system testing.

For more information and feedback on the test data, contact our User Service Helpdesk.