Search found 51 matches
- Tue Jul 19, 2022 11:26 am America/New_York
- Forum: Questions/Comments
- Question: Water quality data
- Replies: 3
Re: Water quality data
I just did a search on the L1/L2 browser, it works. Can you try again? We had worked on restoring the OB.DAAC L1/L2 database in the past several days. Probably that was the reason.
- Tue Jul 19, 2022 9:19 am America/New_York
- Forum: Questions/Comments
- Question: modis_GEO SeaDAS
- Replies: 2
Re: modis_GEO SeaDAS
We are working on restoring the data for L1. Stay tuned.
- Mon Jul 18, 2022 11:52 pm America/New_York
- Forum: Questions/Comments
- Question: CDOM retrievals with SeaDAS from ACOLITE derived Rrs
- Replies: 3
Re: CDOM retrievals with SeaDAS from ACOLITE derived Rrs
Hi Dulci,
Which CDOM product are you referring to?
I'm not sure how ACOLITE handles Rrs outputs and whether they are consistent with NASA standard products.
SeaDAS help page of l2gen:
https://seadas.gsfc.nasa.gov/help-8.2.0/processors/ProcessL2gen.html
Guoqing
Which CDOM product are you referring to?
I'm not sure how ACOLITE handles Rrs outputs and whether they are consistent with NASA standard products.
SeaDAS help page of l2gen:
https://seadas.gsfc.nasa.gov/help-8.2.0/processors/ProcessL2gen.html
Guoqing
- Mon Jul 18, 2022 11:29 pm America/New_York
- Forum: Questions/Comments
- Question: Water quality data
- Replies: 3
Re: Water quality data
Can you provide more information about which website/page are you using? What date, time, and lat/lon?
- Mon Jul 11, 2022 12:01 pm America/New_York
- Forum: Questions/Comments
- Question: Missing MODIS L1A files in our subscription since 2 days
- Replies: 7
Re: Missing MODIS L1A files in our subscription since 2 days
Hi Jacques,
The problem has been fixed. Please double check.
Guoqing
The problem has been fixed. Please double check.
Guoqing
- Mon Jul 11, 2022 11:15 am America/New_York
- Forum: Questions/Comments
- Question: Level 3 VIIRS CHL Product
- Replies: 2
Re: Level 3 VIIRS CHL Product
Hi Mark, Yes, we provide daily VIIRS level 3 mapped data at 4km resolution and more. There are several ways to download the data. On ocean color website (https://oceancolor.gsfc.nasa.gov/), under the "Data" button, you can click "Direct Data Access", and it will jump to the data ...
- Mon Jul 11, 2022 9:14 am America/New_York
- Forum: Questions/Comments
- Question: [SeaBASS - MODISA] SST retrieval at night
- Replies: 5
Re: [SeaBASS - MODISA] SST retrieval at night
Hi, The SST product you downloaded should be the most recent R2019 version. Here is the document about it: https://oceancolor.gsfc.nasa.gov/reprocessing/r2019/sst/ Details about the algorithms used in SST: https://oceancolor.gsfc.nasa.gov/atbd/sst/ https://oceancolor.gsfc.nasa.gov/atbd/sst4/ https:/...
- Fri Jul 08, 2022 3:15 pm America/New_York
- Forum: Questions/Comments
- Question: batch extract MODIS spectra without download
- Replies: 1
Re: batch extract MODIS spectra without download
Hi Chui, Unfortunately, there is no easy way to do that without downloading the original files. One method that I used may help a little. You can find all the MODIS L1 and L2 files that matches the date and time (+- time differences that you prefer). Then use wget to download all the files, and subt...
- Wed Jul 06, 2022 11:07 am America/New_York
- Forum: Questions/Comments
- Question: how are 8d/monthly data averaged?
- Replies: 1
Re: how are 8d/monthly data averaged?
Hi, It sounds like you may be planning to average the daily mapped files to get 8-day and monthly mapped files. You should use l3 BIN data instead of SMI for that purpose. After binning, you can use the SeaDAS l3mapgen to produce the mapped images. All the standard mean/composite products are calcul...
- Tue Jun 28, 2022 1:10 pm America/New_York
- Forum: Questions/Comments
- Question: How to derive Lw from Rrs product
- Replies: 4
Re: How to derive Lw from Rrs product
The easy way to get Lw is using the l2gen of SeaDAS. Other parameters including brdf can also be obtained from l2gen.
Guoqing
Guoqing