Search found 1358 matches

by OB.DAAC - SeanBailey
Mon Oct 31, 2022 3:49 pm America/New_York
Forum: Questions/Comments
Question: Removing high chlor_a before binning
Replies: 4

Re: Removing high chlor_a before binning

Andrea, The answer is more a 'not yet'. The binner does do something akin to what you seek, but it's very inflexible. There is a way to set a minimum at run time. The default minimum is zero, but some products are valid with negative values, so we have a way to allow the binner to accept values less...
by OB.DAAC - SeanBailey
Fri Oct 28, 2022 1:55 pm America/New_York
Forum: Questions/Comments
Question: Seadas aerindex
Replies: 2

Re: Seadas aerindex

Matt, With the original Gordon and Wang implementation with 12 aerosol models, it was pretty easy...just ask for: aer_model_min aer_model_max aer_model_ratio aer_model_min and max are the bounding models that encompassed measured epsilon value, ratio is the weighting between them. Then we went to 80...
by OB.DAAC - SeanBailey
Tue Oct 25, 2022 10:41 am America/New_York
Forum: Questions/Comments
Question: VIIRS data processed problem
Replies: 4

Re: VIIRS data processed problem

If you run the update_luts script, the polar wander file (as well as other required LUTs) will be retrieved and put in the correct location:

Code: Select all

$ update_luts viirsn
Sean
by OB.DAAC - SeanBailey
Tue Oct 25, 2022 10:06 am America/New_York
Forum: Questions/Comments
Question: VIIRS data processed problem
Replies: 4

Re: VIIRS data processed problem

Have you verified that your polar wander file exits and is up to date (i.e. have you recently run update_luts)?
It should be under $OCVARROOT/common/polar_wander.ascii

Sean
by OB.DAAC - SeanBailey
Fri Oct 21, 2022 12:21 pm America/New_York
Forum: Questions/Comments
Question: absorption data due to gelbstoff and detritus at 443nm
Replies: 5

Re: absorption data due to gelbstoff and detritus at 443nm

The issue is resolved and the color bar is now back on the L3 browser.
by OB.DAAC - SeanBailey
Thu Oct 20, 2022 2:36 pm America/New_York
Forum: Questions/Comments
Question: Error in Level 1&2 Browser
Replies: 2

Re: Error in Level 1&2 Browser

Jessie, It is likely an intermittent issue with the webserver communicating with the script. We'll look to see if there is something we can identify as the root cause, but as it is not a persistent problem, you should just try again. If you don't need to visualize the browse files for your query, yo...
by OB.DAAC - SeanBailey
Thu Oct 20, 2022 9:13 am America/New_York
Forum: Questions/Comments
Question: modis_L1B output depends on MODIS granule date ?
Replies: 3

Re: modis_L1B output depends on MODIS granule date ?

Jacques, The A2020168174500.L1A_LAC scene is a nighttime scene: https://oceancolor.gsfc.nasa.gov/cgi/browse.pl?file=AQUA_MODIS.20200616T174501.L2.SST.nc_SST_BRS By default, the modis_L1B script disables the HKM and QKM output for nighttime granules as the 250 and 500m bands are only reflective solar...
by OB.DAAC - SeanBailey
Wed Oct 19, 2022 12:13 pm America/New_York
Forum: Questions/Comments
Question: Where can i find the algorithm theoretical basis document of SeaDAS?
Replies: 3

Re: Where can i find the algorithm theoretical basis document of SeaDAS?

In the Rrs ATBD page Alicia pointed out, there is a link to a NASA Technical Memorandum document that goes into great detail on the atmospheric correction process - including the derivation of the glint and foam radiances you mentioned. Since it might easily be missed, here is the link: https://ocea...
by OB.DAAC - SeanBailey
Wed Oct 19, 2022 11:56 am America/New_York
Forum: Questions/Comments
Question: SST4 product no longer distributed?
Replies: 2

Re: SST4 product no longer distributed?

The SST4 product is available, but if you used the L1/2 browser and only had the 'day' checkbox selected, SST4 would not be found. SST4 is only available at night. Try your query again, but select 'night' on the first page (you'll probably aslo have to click the Reconfigure Page button). Regards, Sean