Forum

Andrew, The l2gen file reader for OLCI is not setting the terrain_corrected field to true in the internal data record...so...terrain correction is being applied to the terrain corrected geolocation.  After modifying the reader to set the bit, the geolocation is happy.  This fix will be inc...

Uninstalling a previous version is as simple as deleting the install directory.The terminal from which you launch the installer needs to have the DISPLAY environment variable set for the installer GUI to work.  Without that it will install via command line prompts (at least v7.4 will). 
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No.  The information available for the search is rectilinear, so we stick to boxes on a sphere...

That's because we don't put the data into CMR until we've processed the file as "refined" - which can be up to a two-week delay.
If you want NRT, create a subscription.

Sean

> Why???

Floating point math and output vs input driven mapping.

If you want absolute consistency, then yes, you'd want to process all with l3mapgen.  Is it a problem if you don't?  I wouldn't say so. 

Sean

Using the level-2 browser you can also request data to be extracted to your region of interest (assuming your region is smaller than a typical 5-min granule).Additionally, if you need to acquire data for the future you can set up a data subscription (either extracted or non-extracted).If you're real...

Not using l2gen.  The atmospheric correction algorithm is designed to work over the ocean.   A primary assumption is that the signal in the NIR bands is entirely due to the atmosphere (or the portion from the surface - water surface - can be estimated and removed).  This is not t...

Kim,

Query for a smaller time period or a smaller region.  Searching for 15 years of 5 minute granules over such a large region takes a long time (with the current browser DB code).  The query is being terminated because it it exceeding the timeout limit on the server. 

Sean

Jun,

Both GSM and GIOP are semi-analytical models employing non-linear inversion.  You should not expect that both will result in the same valid retrieval count.   One may retrieve a result where the other fails to converge.

Sean

Brian,The xcal file contains a set of temporally varying polynomial coefficients for each detector and mirror side.  The polynomial expression that uses the coefficients is based on the pixel number.  All of the coefficients for a time step/detector/mirror side are necessary to evaluate th...