Navigating PACE imagery
Posted: Mon Jul 22, 2024 4:51 pm America/New_York
My goal is to be able to screen a region (Gulf of Mexico) by day for reasonably cloud-free scenes. NASA Worldview (https://worldview.earthdata.nasa.gov/) appears to have the best interface for this, though I can only find v1 NRT Chl and True Color imagery; still a good start.
Once I find a good day, Worldview does not appear to identify granules or provide a download path to L1B imagery, so I then go to Earthdata Search (https://search.earthdata.nasa.gov/) and select the L1B v2 data product, dial in my date and time, find the image and download it. Alternatively, I go to the OB.DAAC search engine and dial in the date/time, etc. and search, select, and download, though this takes more time.
1) Why does Worldview not show any PACE imagery before April 15?
2) Why does Worldview often show good-looking v1 L2 imagery on many days, but the Earthdata search does not show any L1B data for that day/___location (e.g., June 7)?
3) Is there a smarter, faster way to do what I'm trying to do?
-Dirk
Once I find a good day, Worldview does not appear to identify granules or provide a download path to L1B imagery, so I then go to Earthdata Search (https://search.earthdata.nasa.gov/) and select the L1B v2 data product, dial in my date and time, find the image and download it. Alternatively, I go to the OB.DAAC search engine and dial in the date/time, etc. and search, select, and download, though this takes more time.
1) Why does Worldview not show any PACE imagery before April 15?
2) Why does Worldview often show good-looking v1 L2 imagery on many days, but the Earthdata search does not show any L1B data for that day/___location (e.g., June 7)?
3) Is there a smarter, faster way to do what I'm trying to do?
-Dirk