Release of simulated MTG IRS Level 1B data package

A simulated Level 1B dataset of the Infrared Sounder (IRS) which will fly on Meteosat Third Generation sounding satellites (MTG-S) is now available for user familiarisation.

Thursday, 12 December 2019

Dataset description

The dataset consists of a IRS dwell containing Level 1B spectra in native and Principle Component form, provided in netCDF format in line with the current IRS Level 0 and 1 Format Specification.

It is intended for format familiarisation and system testing.

Package usage

FTP access:
ftp://ftp.eumetsat.int/pub/OPS/out/test-data/Test-data-for-External-Users/MTG/MTG_IRS_Test-Data/  Note: Issues with the dataset were found. The dataset has been removed from our FTP server and an updated one will be made available soon.

The MTG IRS Level 1B dataset is delivered as a compressed tar file: IRS_L1b_Format_Familiarisation_2.0.tar.gz

The unpacked contents are:

  • W_XX-EUMETSAT-Darmstadt,SND+SAT,MTS1+IRS-1B-SSS--Q1--CHK-BODY-- DIS-NC4E_C_EUMT_20191112155611_IDPFS_DEV_20160315120800_2016031512081 0_N__C_0049_0049.nc:
    contains the noisy radiances and dwell geometry information encoded in the full L1B spectra format scaled as 2byte integers.
  • W_XX-EUMETSAT-Darmstadt,SND+SAT,MTS1+IRS-1B-PC--Q1--CHK-BODY-- DIS-NC4E_C_EUMT_20191112154713_IDPFS_DEV_20160315120800_2016031512081 0_N__C_0049_0049.nc:
    contains the above radiances re-encoded as principle components scaled as 4 byte integers, using the Eigen vectors and reconstruction operator provided in the following static support file.
  • *CM__PCA-USER_MTS1+IRS_20191112180000_static.nc: contains the Eigenvectors and Reconstruction Operator
  • Sha256sum.txt: checksum file

*Note: This file was previously corrupted and was replaced in an updated package (version 2.1) on 04/02/2020.

Documentation

A Package Description is provided via the above FTP server.

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

 
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