Search found 19 matches
- Wed Mar 22, 2023 5:06 pm America/New_York
- Forum: Questions/Comments
- Question: Conversion of WL radiance to reflectance in MOBY data
- Replies: 2
Re: Conversion of WL radiance to reflectance in MOBY data
Can I get the Rrs (Sr^-1) by the following equation? Rrs = Lw1/Ed Sfc [As this is an insitu mesurement] You're correct. That approach to the in situ data of dividing water-leaving radiance by surface irradiance will appropriately provide you with Rrs (sr^-1). You might also wish to consider applyin...
- Tue Jan 11, 2022 12:38 pm America/New_York
- Forum: Questions/Comments
- Question: SST algorithms performances at night
- Replies: 3
Re: SST algorithms performances at night
Hello, The date and time information in the SeaBASS SST dataset (and all SeaBASS data in general) is in GMT/UTC, not local time. Since the dataset is global, if you wish to organize the data by specific local times, you will need to use a method to convert to local time. FYI in case it is helpful: N...
- Thu Nov 18, 2021 1:26 pm America/New_York
- Forum: Questions/Comments
- Question: files not downloaded in request
- Replies: 1
Re: files not downloaded in request
Thanks for bringing this to our attention, and I'm sorry for the inconvenience. We've identified and corrected an issue that was preventing a few recent datasets from being served properly, which included the EXPORTS radiometry files you were trying to order. The individual links for the affected fi...
- Mon Nov 15, 2021 9:53 am America/New_York
- Forum: Questions/Comments
- Question: Calibration files in associated documents
- Replies: 1
Re: Calibration files in associated documents
Hi Zach, The file you asked about can be found in the documents bundle that comes as part of the order whenever you order at least one file from a particular cruise. FYI, all files listed in "/documents=" as well as "/calibration_files=" should be present in the relevant document...
- Tue Jun 01, 2021 5:46 pm America/New_York
- Forum: Questions/Comments
- Question: Co-located SST data set
- Replies: 5
Re: Co-located SST data set
FYI, some of the information you asked about can be found on, or supplemented with, SeaBASS's SST Validation Description Page. Regarding your questions: The surface depth or method for the in situ SST value depends on the source of the in situ data source used for validation, e.g., many are based on...
- Fri Oct 09, 2020 11:12 am America/New_York
- Forum: Questions/Comments
- Question: Validation search in SEABASS with user input lat/lon/time
- Replies: 1
Validation search in SEABASS with user input lat/lon/time
Hello,Regarding 1) Yes, you can constrain your search as you described, if I understand your question correctly. The Validation Search form includes lat/lon/time options which allow you to focus on results within your specified constraints. You will also need to check all the “Products†boxes (n...
- Thu Jul 23, 2020 2:41 am America/New_York
- Forum: Questions/Comments
- Question: Remote Sensing Reflectance
- Replies: 3
Remote Sensing Reflectance
1. There are a variety of instruments, such as profiling radiometers, floating/tethered radiometers, and above-water radiometers (mounted on a fixed platforms or ships, and those that are handheld.) It is difficult to generalize about their quality and priority of use, since it’s possible to collect...
- Mon Jul 20, 2020 1:16 pm America/New_York
- Forum: Questions/Comments
- Question: Remote Sensing Reflectance
- Replies: 3
Remote Sensing Reflectance
Hi Liu,1. For NOMAD and SeaBASS validation, SeaBASS staff have typically calculated Rrs from in-water profiles (see: Werdell and Bailey, 2005, and Bailey and Werdell, 2006). Yes, Ed(0+) and Es are synonyms, and both mean spectral downwelling surface irradiance. In NOMAD it is named Es, though there ...
- Fri Jun 26, 2020 10:12 am America/New_York
- Forum: Questions/Comments
- Question: File search and Validation search problem
- Replies: 4
File search and Validation search problem
Hi Liu,The site should work with Chrome, and I've tested that latest version successfully, so I suspect there might be something off in your settings. Is Javascript disabled in Chrome? That could cause issues similar to what you described. Check Chrome's menu -> Settings -> Site Settings -> ...
- Thu Jun 25, 2020 10:10 am America/New_York
- Forum: Questions/Comments
- Question: File search and Validation search problem
- Replies: 4
File search and Validation search problem
Hi Liu,1. File Search and Validation Search were used to be two functions and on different websites, but now become one, is there some updating?Yes, the pages now share a common URL (https://seabass.gsfc.nasa.gov/search) which happened during a site redesign back in 2012 or 2013. The reason was so t...