Search found 35 matches

by madjidh
Thu Jan 13, 2022 7:06 am America/New_York
Forum: Questions/Comments
Question: SST algorithms performances at night
Replies: 3

Re: SST algorithms performances at night

Thank you for the answer, solving my problem ! I should have checked the header carefully.

Best
by madjidh
Tue Jan 11, 2022 7:32 am America/New_York
Forum: Questions/Comments
Question: SST algorithms performances at night
Replies: 3

Re: SST algorithms performances at night

Hello, I am still looking for an answer for this question.

I have one more question that may solve my problem, is the time of the matchups in the SeaBASS SST dataset associated to a specific location (like UTC or Eastern US time) or to the matchup point ?

Cheers
by madjidh
Wed Dec 15, 2021 9:22 am America/New_York
Forum: Questions/Comments
Question: SST algorithms performances at night
Replies: 3

SST algorithms performances at night

Hello, I have read that the SST4 algorithm performs poorer during daylight compared to SST11 due to glint sensitivity around 4 microns mostly. I also read that it is the opposite during night time, with SST4 having better performances compared to SST11, which is why NASA's SST product are SST11 duri...
by madjidh
Sun Dec 05, 2021 10:21 am America/New_York
Forum: Questions/Comments
Question: Processing using l2gen: several questions
Replies: 4

Re: Processing using l2gen: several questions

Thank you very much Sean for the explanations !
by madjidh
Fri Dec 03, 2021 9:33 am America/New_York
Forum: Questions/Comments
Question: Processing using l2gen: several questions
Replies: 4

Re: Processing using l2gen: several questions

Thanks for the previous reply Sean, but I am sorry to say I am still unsure what masks have been applied to my Level 3 output. My processing steps are: After using L2GEN my L2 product shows "CLDICE" and "HILT" . I then use L2BIN and I apply "ATM FAIL" to mask data where...
by madjidh
Wed Dec 01, 2021 10:55 am America/New_York
Forum: Questions/Comments
Question: Processing using l2gen: several questions
Replies: 4

Processing using l2gen: several questions

Hello, I am using l2gen to generate L2 files for some specific variables. An example of my linux command line code: l2gen ifile=$L1BFILE geofile=$GEOFILE ofile=$L2FILE \ l2prod1='senz,l2_flags,chl_gsm,chlor_a' \ 1) When I use ncdump / ncdisp on my freshly created file, I can see the line: "mask...
by madjidh
Tue Nov 30, 2021 3:41 am America/New_York
Forum: Questions/Comments
Question: Seadas batch processing: Extracting l2flags and szen
Replies: 6

Re: Seadas batch processing: Extracting l2flags and szen

Thank you for the details Sean !
by madjidh
Mon Nov 29, 2021 9:34 am America/New_York
Forum: Questions/Comments
Question: Seadas batch processing: Extracting l2flags and szen
Replies: 6

Re: Seadas batch processing: Extracting l2flags and szen

The name "szen" is ambiguous (sun/sensor), so you need to find the product name. You can dump and ASCII xml format file with Actually you could not be more right, I did a mistake, the real name is senz (sensor zenith angle), so my first problem is solved, thank you. I already planned to u...
by madjidh
Mon Nov 29, 2021 6:46 am America/New_York
Forum: Questions/Comments
Question: Seadas batch processing: Extracting l2flags and szen
Replies: 6

Re: Seadas batch processing: Extracting l2flags and szen

Thanks for your answer George. I was playing with the SeaBASS SST data set and we have access to l2flags with this data set, which is why I wanted to have access to it with my own matchup data set. If I am right, the satellite information inside SeaBASS comes from a 10x10 km grid around the in situ ...
by madjidh
Fri Nov 26, 2021 10:23 am America/New_York
Forum: Questions/Comments
Question: Seadas batch processing: Extracting l2flags and szen
Replies: 6

Seadas batch processing: Extracting l2flags and szen

Hello, I am batch processing some MODIS Aqua data (L1A to L3M, Rrs with the basic atmospheric correction) and I would like to include the szen and l2_flags. I have 2 issues : 1) When I add szen, nothing happens and an error is returned saying szen does not exist. "-E- /home/seadas/ocssw/src/l2g...