I am processing Sentinel-2 images to use with time series, mainly for agriculture.
Looking at the L2A_GIPP.xml file, which is used by Sen2cor to define processing parameters, I was wondering why the following parameters aren’t AUTO by default (row0, col0, Aerosol_Type, Mid_Latitude). Is there any contraindication to use them as “AUTO”?
<Region_Of_Interest> <row0>OFF</row0> <col0>OFF</col0> <nrow_win>3000</nrow_win> <ncol_win>3000</ncol_win> <!-- this defines a configurable Region of Interest (ROI) --> <!-- if row0 == OFF: standard processing without ROI detection --> <!-- if row0 == AUTO: region of interest is detected automatically via an algorithm --> <!-- else: row0, col0: specifies the midpoint of the region of interest --> <!-- if not OFF or AUTO: nrow_win, ncol_win defines a rectangle around the midpoint in pixel --> <!-- row0, col0, nrow_win and ncol_win must be integer divisible by 6, to prevent rounding errors for downsampling --> <!-- specify always a 10m resolution ROI, it will be automatically adapted to the lower resolutions --> </Region_Of_Interest> <Look_Up_Tables> <Aerosol_Type>RURAL</Aerosol_Type> <!-- RURAL, MARITIME, AUTO --> <Mid_Latitude>SUMMER</Mid_Latitude> <!-- SUMMER, WINTER, AUTO --> <Ozone_Content>331</Ozone_Content> <!-- The atmospheric temperature profile and ozone content in Dobson Unit (DU) 0: to get the best approximation from metadata (this is the smallest difference between metadata and column DU), else select one of: ========================================== For midlatitude summer (MS) atmosphere: 250, 290, 331 (standard MS), 370, 410, 450 ========================================== For midlatitude winter (MW) atmosphere: 250, 290, 330, 377 (standard MW), 420, 460 ========================================== --> </Look_Up_Tables>
Also, I’ve read (Sen2cor processing parameters missing in final product? - #2 by adriaan) that the used parameters are being provided when using Sen2cor 2.9.0 as output (Great!). But I would like to check which parameters were used on the L2A products provided in scihub coopernicus previously from the using Sen2cor 2.9.0. Is there any documentation I can confirm the used parameters?