Search found 317 matches

by GES DISC - jimacker
Tue Aug 08, 2023 10:52 am America/New_York
Forum: Home
Question: How to calculate Total Aerosol Extinction AOT?Why is the AOT obtained dimensionless?
Replies: 1

Re: How to calculate Total Aerosol Extinction AOT?Why is the AOT obtained dimensionless?

Hello,

Please inform us what data you are working with so that we can direct your question to the proper data specialists. Thank you!
by GES DISC - jimacker
Tue Aug 01, 2023 4:43 pm America/New_York
Forum: Home
Question: No more recent "SO2 AURAOMI; OMSO2: Aura/OMI Sulfur Dioxide Level 2 Product" files available.
Replies: 2

Re: No more recent "SO2 AURAOMI; OMSO2: Aura/OMI Sulfur Dioxide Level 2 Product" files available.

Note that the data processing delay is also affecting Ozone Mapping and Profiler Suite (OMPS) data.
by GES DISC - jimacker
Tue Aug 01, 2023 4:41 pm America/New_York
Forum: Home
Question: No more recent "SO2 AURAOMI; OMSO2: Aura/OMI Sulfur Dioxide Level 2 Product" files available.
Replies: 2

Re: No more recent "SO2 AURAOMI; OMSO2: Aura/OMI Sulfur Dioxide Level 2 Product" files available.

Hello, thank you for your question. Yes, this is temporary, but there is not a set date for the resolution of the problem. Please read our alert message for more information. https://disc.gsfc.nasa.gov/information/alerts?title=OMI%20data%20outage%2Fdelay
by GES DISC - jimacker
Wed Jul 19, 2023 3:47 pm America/New_York
Forum: Home
Question: Spatial Subsetting Applications
Replies: 10

Re: Spatial Subsetting Applications

The GES DISC offers spatial subsetting for many datasets, accessible through the main data ordering interface. First search for the datasets of interest, using keywords in the search box on the home page. In the returned list, if the words "Subset/Get Data" appear under the dataset name, t...
by GES DISC - jimacker
Fri Jul 07, 2023 2:17 pm America/New_York
Forum: Home
Question: PIC Algorithms
Replies: 10

Re: PIC Algorithms

By the way, here is the OBDAAC page on the PIC algorithm, if you have not seen it earlier.

https://oceancolor.gsfc.nasa.gov/resources/atbd/pic/
by GES DISC - jimacker
Fri Jul 07, 2023 2:07 pm America/New_York
Forum: Home
Question: PIC Algorithms
Replies: 10

Re: PIC Algorithms

At this point you have gone beyond my basic understanding of the PIC algorithm, so I would recommend further correspondence with the OBDAAC staff. I will add the "OBDAAC" tag to this thread. It is my expectation that the chl-a product does not provide a good estimate of chlorophyll in Ehux.
by GES DISC - jimacker
Fri Jul 07, 2023 1:46 pm America/New_York
Forum: Home
Question: PIC Algorithms
Replies: 10

Re: PIC Algorithms

That's a good question. As I recall, the high reflectivity of the coccolithophores makes it difficult to properly estimate chlorophyll in cocco blooms. I think (though I can be corrected) that chl-a processing includes a coccolithophore bloom mask because of that interference. I.e., so much light is...
by GES DISC - jimacker
Thu Jun 29, 2023 12:16 pm America/New_York
Forum: Home
Question: Regarding bins in MERRA
Replies: 3

Re: Regarding bins in MERRA

Thank you for that information. The sea salt bin definitions are listed in this document:

https://gmao.gsfc.nasa.gov/reanalysis/MERRA-2/FAQ/Dust.pdf

Please reply for further information and assistance, if necessary.
by GES DISC - jimacker
Wed Jun 28, 2023 4:33 pm America/New_York
Forum: Home
Question: Regarding bins in MERRA
Replies: 3

Re: Regarding bins in MERRA

Regarding your question, can you provide a MERRA-2 document or web page where the term "bin" is used? Bin commonly refers to a data storage location in which all valid observations for a particular spatial resolution are kept, until averaging over a time period is performed to provide a va...
by GES DISC - jimacker
Tue Jun 27, 2023 11:54 am America/New_York
Forum: Home
Question: Getting data for a limited area
Replies: 5

Re: Getting data for a limited area

I'm glad you found this information useful. Can we assist you with the use of Giovanni?