Bay Area Aquatic Resources Inventory (BAARI) is a detailed base map of the Bay Area's aquatic features that includes wetlands, open water, streams, ditches, tidal marshes and flats, and riparian areas. BAARI was developed using a Geographic Information System (GIS) with true color imagery and a suite of ancillary data sources to consistently map aquatic resources around the Bay Area.  The draft GIS dataset was extensively reviewed by regional wetland scientists and stakeholders to ensure it is as accurate as possible. Aquatic features were hand-digitized while referencing ancillary national and local datasets for elevation, streams and wetlands.  Google Earth aereal imagery was used for spotting seasonal variations. Learn more about BAARI mapping procedures and standards in the BAARI Standards and Methodology document.

BAARI is a living dataset that is periodically updated through a map stewardship effort.  Local wetland scientists and managers can suggest updates to improve the accuracy and detail of the GIS dataset using the CARI Editor tool on EcoAtlas (in process of being released as of July 2, 2015).  This BAARI v2.0 dataset (available for download on this webpage) includes updates to stream features in the Guadalupe River Watershed in the South San Francisco Bay and Sonoma Creek Watershed in the North Bay.  Stream names were also added for all nine Bay Area Counties.  The GIS meta data (found in the downloadable zip file below) includes a more detailed description of all the updates in this updated version of BAARI. 

This project was supported by EPA Grant # EM-00T34101 through a sub-agreement with the Bay Area Association of Governments (ABAG).  

Creation Date: 
Tuesday, June 30, 2015
Last Updated: 
Tuesday, June 30, 2015
Type of Data: 
GIS vector dataset
Programs and Focus Areas: 
Environmental Informatics Program
Geographic Information Systems
Resilient Landscapes Program
Wetland Science
Location Information
General Project Location(s) (Optional): 
San Francisco Bay Area
Project Location(s): 
Data Availability
Please Cite This Dataset as: 

San Francisco Estuary Institute and Aquatic Science Center (SFEI ASC). 2015. "Bay Area Aquatic Resource Inventory (BAARI) Version 2 GIS Data." Accessed [date retrieved].

Terms of Use: 
Copyright 2015 San Francisco Estuary Institute.
This file is part of BAARI.
BAARI is free data: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
BAARI is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with BAARI. If not, see
Data File(s): 
Package icon BAARI_v2__SFEI_2015.zip92.43 MB