TY - JOUR
T1 - Optimized Spectral Microwindows for Data Analysis of the Michelson Interferometer for Passive Atmospheric Sounding on the Environmental Satellite
AU - Echle, Georg
AU - von Clarmann, Thomas
AU - Dudhia, Anu
AU - Flaud, Jean-Marie
AU - Funke, Bernd
AU - Glatthor, Norbert
AU - Kerridge, Brian
AU - López-Puertas, Manuel
AU - Martín-Torres, Francisco J.
AU - Stiller, Gabriele P.
PY - 2000/10/1
Y1 - 2000/10/1
N2 - For data analysis of the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) atmospheric limb emission spectroscopic experiment on Environmental Satellite microwindows, i.e., small spectral regions for data analysis, have been defined and optimized. A novel optimization scheme has been developed for this purpose that adjusts microwindow boundaries such that the total retrieval error with respect to measurement noise, parameter uncertainties, and systematic errors is minimized. Dedicated databases that contain optimized microwindows for retrieval of vertical profiles of pressure and temperature, H 2 O, O 3 , HNO 3 , CH 4 , N 2 O, and NO 2 have been generated. Furthermore, a tool for optimal selection of subsets of predefined microwindows for specific retrieval situations has been provided. This tool can be used further for estimating total retrieval errors for a selected microwindow subset. It has been shown by use of this tool that an altitude-dependent definition of microwindows is superior to an altitude-independent definition. For computational efficiency a dedicated microwindow-related list of spectral lines has been defined that contains only those spectral lines that are of relevance for MIPAS limb sounding observations.
AB - For data analysis of the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) atmospheric limb emission spectroscopic experiment on Environmental Satellite microwindows, i.e., small spectral regions for data analysis, have been defined and optimized. A novel optimization scheme has been developed for this purpose that adjusts microwindow boundaries such that the total retrieval error with respect to measurement noise, parameter uncertainties, and systematic errors is minimized. Dedicated databases that contain optimized microwindows for retrieval of vertical profiles of pressure and temperature, H 2 O, O 3 , HNO 3 , CH 4 , N 2 O, and NO 2 have been generated. Furthermore, a tool for optimal selection of subsets of predefined microwindows for specific retrieval situations has been provided. This tool can be used further for estimating total retrieval errors for a selected microwindow subset. It has been shown by use of this tool that an altitude-dependent definition of microwindows is superior to an altitude-independent definition. For computational efficiency a dedicated microwindow-related list of spectral lines has been defined that contains only those spectral lines that are of relevance for MIPAS limb sounding observations.
KW - Aerospace Engineering
KW - Rymd- och flygteknik
U2 - 10.1364/AO.39.005531
DO - 10.1364/AO.39.005531
M3 - Article
SN - 1559-128X
VL - 39
SP - 5531
EP - 5540
JO - Applied Optics
JF - Applied Optics
IS - 30
ER -