Welcome to SeaBASS, the publicly shared archive of in situ oceanographic and atmospheric data maintained by the NASA Ocean Biology Processing Group (OBPG). For information on how to search for data, please refer to the "Data Users" menu options. For information about preparing files for submission to SeaBASS, refer to "Data Contributors."

May 19

New Software Tools

netCDF converter: sb2nc is a Perl script designed to convert SeaBASS format data files to netCDF4 files.

Python SeaBASS file reader: While many of Python's built-in functions may be used to read SeaBASS files, this module leverages Python libraries and tools, including NumPy and Ordered Dictionaries, to efficiently read, sort, mask, and return the contained data for easy use.

Oct 5


FCHECK now outputs a summary of the different types (and number of occurrences) of errors and warnings that were found during its scan. This summary should make it easier for users to identify problems when they have checked multiple files and there is a lengthy amount of output to read through.

Apr 22

Processing Version Labels

The validation search results and stats download now include the actual processing version used to produce the extracts.

Nov 19

Minor UI Changes

We've finally replaced the gaudy, Google Maps pins with a slightly less gaudy circle! The 'Download 'All' button in the bio-optical search results has also been moved above the results table (plotting/mapping buttons are still located at the bottom).

Apr 22

Multi- vs. Hyper-spectral Searching

The bio-optical search has been given a new search option to find only multi- or hyper-spectral files. Or both, like it used to.

Mar 31

New Data Map

A map has been added to the Recent Data to (roughly) show areas with newly archived data. You can check it out here. Happy hunting!

Dec 11

Search by Date Archived

New functionality was added to all search engines allowing you to narrow down results by when they were archived in our system. All previously generated permalinks are now invalid.

We've also added a disclaimer to the pigment search engine. You can read more details on the search page, but briefly, there are certain limitations on those search results that will exist until the database is upgraded in the future. Complete pigment data can always be found by using the bio-optical search engine option.

Sept 6

On a Friday Again? He Wouldn't. He Did.

There is now a list of all primary investigators that displays all the cruises the PI was the point of contact for, as well as allowing a quick, one-push method of searching for all their data. It's finally possible to create more than one zip file in a bio-optical search. Alright, the "bad" news: Internet Explorer 8 and prior are no longer supported.

Mar 27


Those of you who use MATLAB might be interested in trying out the new readsb function to read in SeaBASS files. More information and the download link are available in its wiki page.

Mar 13

Linear Regression Modified

The linear regression model has been changed from Ols(Y/X) to reduced major axis.

Feb 25

Validation Plot ERROR

Any satellite vs. in situ plots made between 2-25-2013 and 2-29-2013, depending on the time of the day, may have the data switched, IE: the linear regression plot should have been mirrored along x=y and the histogram colors and switched. I apologize for the error and inconvenience, but the plots are now fixed and proper.

Feb 19

Credit Given Where Credit is Due

More information about AERONET data is now available and the search and results pages using it have now been given links to associated pages. MOBY information to follow.

Feb 15

In situ in Validation

In situ values are now included in satellite-satellite validation searches and their accompanying CSV files. Some neat, new graphs are generated comparing the satellites to the insitu data.

Nov 6

New Nav Bar

We've reorganized the site a little bit to hopefully make it more intuitive. There's also a handy how-to-use-SeaBASS article located under Data Users above.

Oct 23

Minor Changes

Most notably, you can now search for multiple custom parameters in the bio-optical search. The mailing list subscription is shiny and working, so head on over to here and sign yourself up for weekly data updates.

Sep 24

Data Bundled With Documents

Most (or at least some) data downloaded from the bio-optical search is now bundled with its accompanying documentation.

Sep 7

Maps and Bio-optical Search Modified

All Google Maps have been resized to fit only one Earth.

The bio-optical search has been modified to only include files with exact product matches instead of a substring match.

Aug 29

New CSV Headers

CSV files from searches now come with a small, SeaBASS-like header so our users can (hopefully) reuse SeaBASS file reading scripts/software.

Aug 28

We've Made the Switch

It's official, ladies and gentlemen. As you can see, the beta has finished its trial and is now the official SeaBASS site. Feedback and bug reports are very welcome.

For those of you that like the old version better, it can still be accessed here.

July 2

When it Rains, it Pours

I've changed the search page a bit, added a Most Recent Update field to validation search results, and added a page to fast track users to the validation search results.

June 29


Despite my best judgement, I've pushed out some updates on a Friday afternoon. Some bug fixes, some shiny new features, some old features made shiny.

Most importantly, VIIRS has been added to the validation search.

Apr 19

Bringing SeaBASS back in style!

This beta is not 100% complete. Specifically, it's still lacking in much of the static content and lists and such. This live version is mainly to show off the shiny, new look and to give users a chance to try the new and improved searches (which aren't 100%, either).