<?xml version='1.0' encoding='UTF-8'?><codeBook xmlns="ddi:codebook:2_5" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="ddi:codebook:2_5 https://ddialliance.org/Specification/DDI-Codebook/2.5/XMLSchema/codebook.xsd" version="2.5"><docDscr><citation><titlStmt><titl>Infrared Reference Spectra</titl><IDNo agency="DOI">doi:10.26165/JUELICH-DATA/IMGXDV</IDNo></titlStmt><distStmt><distrbtr source="archive">Jülich DATA</distrbtr><distDate>2025-11-24</distDate></distStmt><verStmt source="DVN"><version date="2025-11-24" type="RELEASED">1</version></verStmt><biblCit>Hoffmann, Lars, 2025, "Infrared Reference Spectra", https://doi.org/10.26165/JUELICH-DATA/IMGXDV, Jülich DATA, V1</biblCit></citation></docDscr><stdyDscr><citation><titlStmt><titl>Infrared Reference Spectra</titl><IDNo agency="DOI">doi:10.26165/JUELICH-DATA/IMGXDV</IDNo></titlStmt><rspStmt><AuthEnty affiliation="Forschungszentrum Jülich">Hoffmann, Lars</AuthEnty></rspStmt><prodStmt><software version="v4.28">Reference Forward Model (RFM)</software><grantNo agency="GCS/NIC">slmet</grantNo></prodStmt><distStmt><distrbtr source="archive">Jülich DATA</distrbtr><contact affiliation="Forschungszentrum Jülich" email="l.hoffmann@fz-juelich.de">Hoffmann, Lars</contact><depositr>Hoffmann, Lars</depositr><depDate>2025-11-18</depDate></distStmt></citation><stdyInfo><subject><keyword>Earth and Environmental Sciences</keyword></subject><abstract>This data repository provides access to simulated infrared radiance spectra for a range of atmospheric conditions and satellite observation geometries. The spectra cover the spectral range from 650 to 2650 cm-1 (3.77 to 15.4 microns), with a spectral sampling and resolution of 0.05 cm-1. Spectroscopic data were taken from the HITRAN2k database.</abstract><sumDscr/></stdyInfo><method><dataColl><sources/></dataColl><anlyInfo/></method><dataAccs><setAvail/><useStmt/></dataAccs><othrStdyMat/></stdyDscr></codeBook>