v100 : First release of SADIST -2. ATSR-2 data only processed. Uses same cloud-clearing as SADIST-1 but incorporates new product formats with greatly improved header information and a totally new Level 1 processing system.
v200 : Improved cloud-clearing scheme incorporating new versions of the 1.6 um Histogram Test and the Infrared Histogram Test.
v201 : Corrects bug in the 1.6um Histogram Test to correctly set the sunglint flag. (Previously always flagged no-sunglint.)
v203 : Corrects bug in the CloudQuantityTest function in the 1.6 um Histogram Test (previously caused an occasional crash, so products not affected).
v213 : New format ABT product introduced giving higher precision in brightness temperature data.
v300 : New version of SADIST-2 giving ATSR-1 as well as ATSR-2 processing capability. No differences with v213 as far as ATSR-2 processing is concerned. ATSR-1 data now available for the first time with the improved cloud-clearing scheme and better Level_1 processing.
v301 : Cloud-clearing improved - new 11um Spatial Coherence Test introduced. Level_1 processing modified to exclude data affected by extreme cases of scan-mirror "jitter".
v302 : Corrects bug in the 11um Spatial Coherence Test (previously caused an occasional crash, so products not affected).
v303 : Corrects bug in Infrared Histogram Test which occasionally gave conflicting nadir-view forward-view cloud-flagging
v310 : Improved SST-retrieval algorithm and coefficients introduced.
v320 : Y2K compliant version. Functionally identical to v310.
v321: Allows calibration of reflectance channels when ATSR-2 is in the non-nominal fixed gain and offset mode of operation. In addition, the ABT product content is amended to include the processed forward-view-only data at the end of each Level_0 input file.
v322:Uses the new SST-retrieval tables (for ATSR-2 only).