TY - JOUR
T1 - Spectrograph dedicated to measuring tropospheric trace gas constituents from space
AU - De Vries, Johan
AU - Laan, Erik C.
AU - Deutz, Alex F.
AU - Escudero-Sanz, Isabel
AU - Bokhove, Henk
AU - Hoegee, Jan
AU - Aben, Ilse
AU - Jongma, Rienk
AU - Landgraf, Jochen
AU - Hasekamp, Otto P.
AU - Houweling, Sander
AU - Van Weele, Michiel
AU - Van Oss, Roeland
AU - Van Den Oord, Gijsbertus
AU - Levelt, Pieternel
PY - 2005
Y1 - 2005
N2 - Several organizations in the Netherlands are cooperating to develop user requirements and instrument concepts in the line of SCIAMACHY and OMI but with an increased focus on measuring tropospheric constituents from space. The concepts use passive spectroscopy in dedicated wavelength sections in the range of 300 to 2400 nm and wide angle, non-scanning, swath viewing. To be able to penetrate into the troposphere small ground pixels are used to obtain a fair fraction of cloud-free pixels and to allow precise detection of the sources of polluting gases. The trace gas products aimed for are O3, NO 2, HCHO, H2O, SO2, Aerosol (optical depth, type and absorption index), CO and CH4, covering science Issues on air quality and climate. The main challenge in the instrument design is to obtain a good signal-to-noise for cloud free pixels and for low ground albedo and light levels. Also the retrieval of separated tropospheric and stratospheric column amounts from a nadir looking instrument is challenging. The paper discusses the user requirements and compares alternative measurement strategies. It explains the selection of passive UV-Visible-NIR spectroscopy and comes with an instrument concept which provides the current best realisation of the user requirements.
AB - Several organizations in the Netherlands are cooperating to develop user requirements and instrument concepts in the line of SCIAMACHY and OMI but with an increased focus on measuring tropospheric constituents from space. The concepts use passive spectroscopy in dedicated wavelength sections in the range of 300 to 2400 nm and wide angle, non-scanning, swath viewing. To be able to penetrate into the troposphere small ground pixels are used to obtain a fair fraction of cloud-free pixels and to allow precise detection of the sources of polluting gases. The trace gas products aimed for are O3, NO 2, HCHO, H2O, SO2, Aerosol (optical depth, type and absorption index), CO and CH4, covering science Issues on air quality and climate. The main challenge in the instrument design is to obtain a good signal-to-noise for cloud free pixels and for low ground albedo and light levels. Also the retrieval of separated tropospheric and stratospheric column amounts from a nadir looking instrument is challenging. The paper discusses the user requirements and compares alternative measurement strategies. It explains the selection of passive UV-Visible-NIR spectroscopy and comes with an instrument concept which provides the current best realisation of the user requirements.
KW - Trace gas monitoring
KW - Tropospheric constituents
KW - UV-Visible NIR spectrograph
UR - https://www.scopus.com/pages/publications/33244458497
U2 - 10.1117/12.627008
DO - 10.1117/12.627008
M3 - Conference article
AN - SCOPUS:33244458497
SN - 0277-786X
VL - 5978
JO - Proceedings of SPIE - The International Society for Optical Engineering
JF - Proceedings of SPIE - The International Society for Optical Engineering
M1 - 59780O
T2 - Sensors, Systems, and Next-Generation Satellites IX
Y2 - 20 September 2005 through 22 September 2005
ER -