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Remote Detection and Quantification of Hot Combustion Products - Experimental Instrumentation and Determination of Optimal Infrared Spectral Micro Windows

Tank, Volker and Hess, Michael and Schreier, Franz and Lindermeir, Erwin (2005) Remote Detection and Quantification of Hot Combustion Products - Experimental Instrumentation and Determination of Optimal Infrared Spectral Micro Windows. Journal of Molecular Structure, 744-747, pp. 235-242.

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Abstract

Aiming at quantitative investigations of molecular combustion products released from high temperature events (HTE) such as forest fires, volcano eruptions, etc., HTE infrared emission spectra and multi-spectral images are measured from which combustion gas parameters like concentrations and temperatures are determined by solution of the inverse radiative transfer problem . The measurement approach permits air-borne or space-borne remote sensing. Airborne instrumentation includes a Fourier transform spectrometer providing high measurement rates and ruggedness by a rotary scan arrangement covering the mid and thermal infrared bands. The optically co-aligned camera system incorporates the visible/near infrared, mid, and thermal infrared bands. In order to extract high accuracy combustion gas concentrations and temperatures from the measured data the analysis procedures have to be applied to optimal spectral regions denoted ”micro windows”. These are determined by simulations employing radiative transfer models and retrieval procedures along with appropriate molecular spectroscopic data bases such as HITRAN and HITEMP. Simulations and results are presented for the analysis of CO2 and CO from a flaming forest fire (1000 K) scene. The spectral window 2391.1 cm-1 – 2392.2 cm-1 is best suited for retrieving CO2 column amounts over forest fires and the spectral region 2127.25cm-1 – 2128.25 cm-1 for the CO column. The H2O column needed for CO retrieval, is retrieved in 2142 cm-1 – 2142.6 cm-1.

Document Type:Article
Additional Information: LIDO-Berichtsjahr=2005,
Title:Remote Detection and Quantification of Hot Combustion Products - Experimental Instrumentation and Determination of Optimal Infrared Spectral Micro Windows
Authors:
AuthorsInstitution or Email of Authors
Tank, VolkerUNSPECIFIED
Hess, MichaelUNSPECIFIED
Schreier, FranzUNSPECIFIED
Lindermeir, ErwinUNSPECIFIED
Date:2005
Journal or Publication Title:Journal of Molecular Structure
Refereed publication:Yes
In ISI Web of Science:Yes
Volume:744-747
Page Range:pp. 235-242
Status:Published
Keywords:Infrared; Spectrum; Micro-window; Combustion Gas
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):UNSPECIFIED
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute
Deposited By: elib DLR-Beauftragter
Deposited On:07 Feb 2006
Last Modified:06 Jan 2010 22:40

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