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How do I extract geophysical profile data from MIPAS L2 products?

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How do I extract geophysical profile data from MIPAS L2 products?

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General MIPAS profiles as retrieved in the pT and subsequent VMR (volume mixing ratio) processing stages are organised in different measurement data sets (MDS) within a product file: MDS#1: pT & height correction profiles MDS#2: target species#1 (= H2O) VMR profiles + concentrations, column densities … MDS#7: target species#6 (= NO2) VMR profiles + concentrations, column densities Because all these data sets contain variable size records a so-called ‘structure ADS’ is included in each L2 product. This ADS defines general parameters from which length&byte offset of individual records can immediately be computed (e.g., no. of sweeps/limb heights per elevation scan, no. of retrieved profile points for pt, VMR …). The limb tangent heights (‘engineering’ heights) of a given elevation scan are extracted from the L1B input data and reported in the scan information annotation data set (‘scaninfoADS’), field#6. Because the limb heights are known only with limited accuracy corrections to the

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