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
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.
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.
A Package Description is provided via the above FTP server.
For more information and feedback on the dataset, contact our User Service Helpdesk.