Using the water-levels site

Using the imagemap

Click a location on the map shown to view water-level information from the nearest selected monitoring sites. The server-side script will identify the sites nearest to where the map was clicked. Clicking below the map pulls up basic information on how the map was created.

Navigation without using the sitemap

On the left-hand side of the page, the site is broken down by geographic area and aquifer. Each link will take you to a page similar to the one shown, and toward the bottom of the page there will be a selection box for the sites shown on the map.

If there is a "Summary of Conditions" header above the map, following that link will bring you to a page summarizing historical conditions for each site shown. This is broken down by drainage basins, aquifers, and counties. The tables include links for every site shown.

Obtaining historical water-level data

Daily values data (daily mean water level for continuous-monitoring surface-water sites, daily maximum water level for continuous-monitoring ground-water sites) and measured values collected during site visits are available through the "data available" link below the 25-year hydrographs, toward the bottom of each site page.

General functions

• U.S. Geological Survey (USGS) banner: Links to the agency public web page.

• South Florida Water Management District (SFWMD) seal: Links the to SFWMD public web page.

• Summary of Conditions (if shown): Links to a table of historical data to place current water levels in their historical context. For this site, the period of record used is the past 25 years of available data. This is particularly important when using de-trended data (data that have been corrected for long-term statistical upward or downward trends).

  The data tables also link to the data pages for each site listed.

• Map: Provides an overview of current water levels in the context of their historical periods of record. For this site, the period of record used is the past 25 years of data. Clicking on the map links to the nearest site(s) to the position on the map clicked.

• Water-level reports: Provides a brief listing of the most recent available data for the sites shown. The table also links to the sites from which the data are obtained.

Site pages

Each site page includes the manuscript text from the most recent published water year. For more up-to-date information on the sites, contact the site maintainers. Also included are links to the daily (maximum or mean, depending on site) values from the site, and graphs of the data from the sites.

Below each graph is a link to the data that the graph is based on, a postscript version of the graph for printing, and a generalized description of the information that would be plotted in the graph. The "D" link accompanying the graph links to an experimental description of the graph.

The data graphs are provided in SVG format, but JPEG or GIF versions may also be available for browsers not at all configured to display SVG graphics. Your system administrator may be able to help you with computer configurations if you cannot access the graphs. The Adobe SVG viewer program is available, at no cost, from Adobe. Additional information on SVG implementations is also available from W3C.