Search found 6 matches

by tihicha
Fri Mar 17, 2023 11:24 pm America/New_York
Forum: Questions/Comments
Question: Coccolithophores L3 flag
Replies: 1

Coccolithophores L3 flag

Hello, I had a question about the details of the coccolithophores flag used in L3 Rrs data production. This site: https://oceancolor.gsfc.nasa.gov/atbd/ocl2flags/ states that this ***** is on by default for L3 data. How exactly is it applied, i.e. are pixels with detected coccolithophores (and/or de...
by tihicha
Wed Nov 25, 2020 5:25 pm America/New_York
Forum: Questions/Comments
Question: Correct bbw values
Replies: 1

Correct bbw values

Hello Bryan, In the MODIS/VIIRS ST meeting a few days ago you mentioned that a bug in bbw values led to them being a few nm off. Are the values available here now OK/corrected: https://oceancolor.gsfc.nasa.gov/reprocessing/r2009/sources/water_coef.txtIn particular, I'm using values as given in t...
by tihicha
Mon Oct 12, 2020 4:05 pm America/New_York
Forum: Questions/Comments
Question: Band-filtering applied to Rrs
Replies: 3

Band-filtering applied to Rrs

Hi Dirk, Thanks for the fast reply, and pointing me to that reference. I also thought about convolving with each sensor's SRF, but I remember a prior discussion here stating that Rrs has been corrected to a uniform 11nm top hat bandpass, except MERIS:https://oceancolor.gsfc.nasa.gov/forum/oceanc...
by tihicha
Thu Oct 08, 2020 10:49 pm America/New_York
Forum: Questions/Comments
Question: Band-filtering applied to Rrs
Replies: 3

Band-filtering applied to Rrs

Hello, I know this was discussed and answered a long time ago, but with the current Rrs NASA OBPG data, is all Rrs NASA data from all sensors processed to the equivalency of a 11-nm tophat band-average filter, centered on each nominal sensors wavelength? I.e. if I wanted to compare to modeled or mea...
by tihicha
Thu Oct 08, 2020 10:42 pm America/New_York
Forum: Questions/Comments
Question: Validation search in SEABASS with user input lat/lon/time
Replies: 1

Validation search in SEABASS with user input lat/lon/time

Hello, Is there a way on the SeaBASS website to do a validation search in the following ways: 1) User inputs a set of lat/lon/time values (where their in-situ data is) and system returns all satellite Rrs values matched (or another satellite value, say POC), controlling the criteria as in the existi...
by tihicha
Mon Jan 27, 2020 6:39 pm America/New_York
Forum: Questions/Comments
Question: Loisel and Stramski algorithm application to other sensors
Replies: 1

Loisel and Stramski algorithm application to other sensors

Hello, Regarding the Loisel and Stramski IOP code as implemented in SeaADS:https://oceancolor.gsfc.nasa.gov/docs/ocssw/las__iop_8c_source.htmlI was wondering what your approach is to apply the algorithm to sensors other than SeaWiFS, as the original code coefficients are provided for SeaWiFS only. T...