Search found 110 matches

by OB General Science - guoqingw
Mon May 12, 2025 10:43 am America/New_York
Forum: Home
Question: Replacement Browser for Decommisioned Browser Level 1 & 2
Replies: 4

Re: Replacement Browser for Decommisioned Browser Level 1 & 2

For the NRT data, they will be available within a couple of hours. You can refer to this webpage for more details: https://www.earthdata.nasa.gov/learn/earth-observation-data-basics/data-latency
by OB General Science - guoqingw
Tue May 06, 2025 7:59 am America/New_York
Forum: Home
Question: Replacement Browser for Decommisioned Browser Level 1 & 2
Replies: 4

Re: Replacement Browser for Decommisioned Browser Level 1 & 2

Hi Len, The near real-time (NRT) Kd490 data is included in the MODISA_L2_OC_NRT collection on NASA Earthdata Search. You can search and download granules there. For more efficient data access, I recommend using the Python package earthaccess, which streamlines searching and downloading L2 data. Here...
by OB General Science - guoqingw
Mon Apr 14, 2025 1:47 pm America/New_York
Forum: Home
Question: MODIS Aqua Chlorophyll Product Flags on Worldview
Replies: 3

Re: MODIS Aqua Chlorophyll Product Flags on Worldview

Hi Kesav, You can download the corresponding L2 files from Earthdata search (https://search.earthdata.nasa.gov/search), and view them in SeaDAS (https://seadas.gsfc.nasa.gov). There is a way to look at which flags were applied to which pixels in SeaDAS (https://www.youtube.com/watch?v=wx08vP2JorA&am...
by OB General Science - guoqingw
Thu Mar 20, 2025 4:17 pm America/New_York
Forum: Home
Question: Can I Access L2 NOAA20-VIIRUS via Earth data search
Replies: 3

Re: Can I Access L2 NOAA20-VIIRUS via Earth data search

On Earthdata Search, if you type in the search box or select "Keywords > Oceans > Sea Surface Temperature", you'll see all matching collections listed on the right side. You can choose to view them as a list or in a table. In the table view, you'll find useful information such as Long Name...
by OB General Science - guoqingw
Mon Mar 17, 2025 5:01 pm America/New_York
Forum: Home
Question: CDO Handling of Fill Values During Regridding
Replies: 2

Re: CDO Handling of Fill Values During Regridding

Hello,

Sorry, CDO is not our software, so I can't provide a solid answer to your question. If you are using our L3M data, I recommend using our software SeaDAS (https://seadas.gsfc.nasa.gov) for regridding/remapping purposes.

Best,
Guoqing
by OB General Science - guoqingw
Thu Mar 13, 2025 7:53 am America/New_York
Forum: Home
Question: Can I Access L2 NOAA20-VIIRUS via Earth data search
Replies: 3

Re: Can I Access L2 NOAA20-VIIRUS via Earth data search

Yes, you can automate the download of NOAA20/21 VIIRS SST data using the Earthdata Python package earthaccess. The URL you referenced points to direct data access, but earthaccess can streamline the process by querying and downloading data directly from Earthdata's API. Here’s a general approach you...
by OB General Science - guoqingw
Tue Feb 11, 2025 2:53 pm America/New_York
Forum: Home
Question: MODIS L2 Flags Application
Replies: 1

Re: MODIS L2 Flags Application

Hello,

You may find this page helpful: https://oceancolor.gsfc.nasa.gov/resources/atbd/ocl2flags/

Guoqing
by OB General Science - guoqingw
Tue Feb 11, 2025 11:29 am America/New_York
Forum: Home
Question: PACE-OCI Level-2 AOP & other OC product processing questions
Replies: 2

Re: PACE-OCI Level-2 AOP & other OC product processing questions

Adding to Minwei's answer, you can find more information regarding the V2 reprocessing on this page: https://oceancolor.gsfc.nasa.gov/data/reprocessing/V2.0/pace-oci/
by OB General Science - guoqingw
Tue Feb 11, 2025 10:06 am America/New_York
Forum: Home
Question: Questions about Remote sensing HABS
Replies: 1

Re: Questions about Remote sensing HABS

Hello, Thank you for reaching out with your questions regarding the challenges of detecting harmful algal blooms (HABs) in persistently cloudy regions. Here are some potential approaches to consider: 1. Increasing Coverage Despite Cloud Cover Persistent cloud cover is a common challenge in satellite...
by OB General Science - guoqingw
Sun Dec 01, 2024 10:41 pm America/New_York
Forum: Home
Question: MODIS AQUA surface reflectance 1km
Replies: 1

Re: MODIS AQUA surface reflectance 1km

Hello, Unfortunately, it’s not possible to download historical versions of the imagery. All imagery is based on the most recent reprocessing and parameters, and older versions are not retained in the archives. We apologize for any inconvenience. If you’re interested in accessing the most recent vers...