------ please visit the following page for OMUVB L2 readme file https://disc.sci.gsfc.nasa.gov/Aura/data-holdings/OMI/documents/v003/OMUVB_README_V003.pdf ------ 2018/08/16 Reprocessed ovp files starting o74701 (07/31/22Z) to o74887 2017/03/29 OMI transitioned into survival mode! NO data between o67327 (03/12) and o67402 (03/17) 2017/01/09 Reprocessed OMI overpass files for orbits 66255-6, 66299, 66300, and 66315-6 2016/08/08 Overpass files processing is back to normal 2016/07/06 Overpass files have been updated up to 06/30/2016 2016/06/29 Orbits 62352 - 63480 are under reprocessing (due to the KNMI request to start using the NSIDC issued daily NISE maps) Overpass files will be updated when data become available 2015/03/17 Reprocessed overpass files for orbits 56323 - 56328 (due to Norway data recovery issue) 2014/12/11 Reprocessed overpass files for orbits 55140 - 55141 2014/12/03 Reprocessed overpass files for orbits 53601 - 54609 (2014/08/13 00Z - 2014/10/21 05Z) for row anomaly correction 2014/10/30 Unit in the OMUVB overpass file headers has been corrected from W to mW, This change is for unit ONLY, value remains unchanged. 2014/03/28 Overpass files have been reprocessed due to the correction of UV index. 2014/03/21 Overpass files will be reprocessed due to the correction of UV index. 2013/11/01 Reprocessed OMUVB L2 overpass files due to a bug found in the aerosol correction of OMUVB L2 version 1.3 2013/10/21 No updated overpass files untill the reprocessed L2 files become available (due to a bug found in the aerosol correction of OMUVB L2 version 1.3) 2013/04/07 Reprocessed OMUVB L2 with PGE v1.3 main difference: aerosol correction 2012/10/22 Currently, the OMUVB L2 files are under re-processing! The last L2 data are for 09/11/2012 2010/09/29 Available data from 10/2004 to the present 2010/09/24 Version 1.2 overpass files on line Available data from 01/2005 to the present Data before 2005 will be added when the L2 files are available 4 new variables: Viewing Zenith Angle Local Noon Time Clear Sky UV Index Satellite Measured Overpass UV Index Local Noon Time UV Index For OMI row anomalies OMTO3QualityFlag bit 6 is not raised 2010/06/22 The current version (1.0) of L2 data ended on 04/05/2010 (orbit 30446) The new L2 data of version 1.2 is coming soon 2009/02/15 Due to the recent OMI anomalies, overpass data between cross track position 27 and 44 (0-based) have been replaced by fill values starting from 2009/01/24 For more information regarding the anomalies, please go to http://avdc.gsfc.nasa.gov/index.php?site=1408676331