Search found 142 matches

by GES DISC - jimacker
Mon May 03, 2021 3:36 pm America/New_York
Forum: All Questions/Comments
Question: chlorophyll a in the Southern Ocean
Replies: 1

Re: chlorophyll a in the Southern Ocean

The Giovanni system, https://giovanni.gsfc.nasa.gov/ , provides a simple data access method for MODIS-Aqua chlorophyll data, including the period of your interest. Are you just seeking the average chlorophyll for the Southern Ocean south of 55 S, or do you wish to see data for specific regions? Eith...
by GES DISC - jimacker
Fri Apr 16, 2021 3:54 pm America/New_York
Forum: All Questions/Comments
Question: Soil porosity
Replies: 3

Re: Soil porosity

This answer was provided by a GLDAS subject matter expert at Goddard Space Flight Center. The Global Land Data Assimilation System (GLDAS) does not use different parameters for “deep” (2-150cm) soil porosity. It only uses the one porosity map for all layers, shown on the LDAS website with an image ...
by GES DISC - jimacker
Wed Apr 14, 2021 3:38 pm America/New_York
Forum: All Questions/Comments
Question: UUI subsetting "datasetID" - how to find?
Replies: 5

Re: UUI subsetting "datasetID" - how to find?

Hello, Here is the answer provided by our GES DISC staff. There are two ways to get the DatasetId. 1. The search API (https://disc.gsfc.nasa.gov/information/howto?keywords=api&title=How%20to%20Use%20the%20Web%20Services%20API%20for%20Dataset%20Searching) does provide a way to get the DatasetID; ...
by GES DISC - jimacker
Tue Apr 13, 2021 11:06 am America/New_York
Forum: All Questions/Comments
Question: UUI subsetting "datasetID" - how to find?
Replies: 5

Re: UUI subsetting "datasetID" - how to find?

Thanks for your question. I will forward it to our developers for comment.
by GES DISC - jimacker
Mon Apr 05, 2021 2:32 pm America/New_York
Forum: All Questions/Comments
Question: MODIS SST product
Replies: 21

Re: MODIS SST product

"Binned" simply refers to the collection of valid observations. With 1 km (at nadir) resolution, a "bin" will be each 4x4 km region on the Level 3 data grid. Any valid 1 km pixel observation during the time period (8-day, monthly) will be added to the appropriate bin. At the end ...
by GES DISC - jimacker
Fri Apr 02, 2021 3:45 pm America/New_York
Forum: All Questions/Comments
Question: MODIS SST product
Replies: 21

Re: MODIS SST product

The previous post does a good job of covering the answers to both questions posed. The monthly SST data product (as for all the other monthly ocean color data products) is a product of binning and averaging -- all of the valid measurements for a specific location are "binned", and then at ...
by GES DISC - jimacker
Fri Apr 02, 2021 10:39 am America/New_York
Forum: All Questions/Comments
Question: MODIS SST product
Replies: 21

Re: MODIS SST product

For your most recent question, are you referring to a daily data product or a data product for a longer period (8-day or monthly)?

SST can provide data with some cloud cover (high clouds/cirrus) where there will be no visible range data.
by GES DISC - jimacker
Tue Mar 30, 2021 2:26 pm America/New_York
Forum: All Questions/Comments
Question: MODIS SST product
Replies: 21

Re: MODIS SST product

Hello, The "best" data product for your requirements is a more complex question. I am providing a couple of references (even though one is several years old) that discuss the issue. Because there are several causes of differences between daytime and nighttime SST, I do not think an average...
by GES DISC - jimacker
Tue Mar 30, 2021 10:52 am America/New_York
Forum: All Questions/Comments
Question: MODIS SST product
Replies: 21

Re: MODIS SST product

Hello, One of the primary reasons is that in many places there will be a diurnal heating cycle due to warming of the surface skin layer by sunlight. It is also dependent on wind speed, as the heating effect of sunlight will be affected by wave action and mixing with the cooler waters below the surfa...
by GES DISC - jimacker
Tue Mar 16, 2021 4:46 pm America/New_York
Forum: All Questions/Comments
Question: GES DISC Announcement - "Top 10 Highlights of 2020" review article
Replies: 0

GES DISC Announcement - "Top 10 Highlights of 2020" review article

All Earthdata Forum participants are invited to read the news article "The Goddard Earth Sciences Data and Information Services Center (GES DISC) Top 10 Highlights of 2020". https://disc.gsfc.nasa.gov/media/image/cd783b31963b4d28a159e2edc7d401b3/GES%20DISC%20Top%2010%20Highlights%202020%20...