Jan 5, 2004 Final stage of reprocessing Umkehr data using FAP03 algorithm. RT - retrieved (using Umkehr Dobson C-pair retrieval algorithm UMKV8) OBS - observed Umkehr measurements (so-called N-values) SZA - solar zenith znagle Description of files: STN014-Tateno STN035-Arosa STN067-Boulder 'ap' means a priori 'fap' means fixed a priori (no seasonal cycle) 60 or 70 means that data werer normalized to the measurement at either 60 or 70-degrees SZA Format of the RT file: DD MM YY M/A LAM TO_OB TO_RT LO3(10:1)*100 NUMIT SZA_b SZA_num RMSD(DIF) RMSD(CONV) RMSD(err) STN_num 1 8 57 2 3 279 2827 116 191 677 2607 5158 7266 6210 2528 988 2525 3 3 10 1 3 48 14 DD is day MM is month YY is year M/A is morning or afternoon (1/2) TO_OB is observed total ozone (TO) TO_RT is retrieved TO LO3(10:1) is 100*ozone amount (DU*100) in Umkehr layers 10, 9,...1 (layer 1 is a double layer 0+1) NUMIT is number of iterations SZA_b is the SZA number for the first available measurement (1 is 60, 2 is 65, 3 is 70 etc) SZA_nub is the number of measurements (12 is the maximum number) RMSD(DIF) is the root-mean squar deviation (RMSD) of the difference from the solution from the previous iteration RMSD(CON) the the RMSD of the convergency of the forcing factor RMSD(err) is the the RMSD of the residual fit (difference between OB and RT N-values) STN_num station number Format of the AP file DD MM YY TO_OB LO3(12:0) 1 8 57 279.0 0.1042 0.3372 0.9891 2.9847 9.7834 25.9466 52.5572 74.3062 60.6886 25.8584 11.3458 13.8404 23.6888