Chesapeake Bay Tributary Basins

<p><b><i>This data resource is a layer in a map service. To download it, please go to the &quot;Layers&quot; section of this page and click the name of the dataset. This will open a new page that features a download button.</i></b></p> <p><b>Open the Map Service:</b> <a href='https://gis.chesapeakebay.net/ags/rest/services/WIP/Tributary_Basins/MapServer'>https://gis.chesapeakebay.net/ags/rest/services/WIP/Tributary_Basins/MapServer</a></p> <p> The Chesapeake Bay Program and its partners use tidal monitoring data from more than 130 stations throughout the mainstem and tidal portions of the Chesapeake Bay to produce summary reports for the Bay's 13 major tributary basins. These reports use water quality data to summarize:</p> <ul> <li>How tidal water quality (e.g., total nitrogen, total phosphorus, dissolved oxygen, chlorophyll-a and secchi depth) has changed over time,</li> <li>How and which factors may influence water quality change over time, and</li> <li>Recent research connecting observed changes in aquatic conditions to its drivers.</li> </ul>