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projects > tides and inflows in the mangrove ecotone (TIME) model development > abstract


The Web Pages of the Tides and Inflows in the Mangroves of the Everglades (TIME) Project

Michael P. Duff and Harry L. Jenter


The Tides and Inflows in the Mangroves of the Everglades (TIME) project of the U.S. Geological Survey (USGS) South Florida Place-Based Studies Program is a joint research endeavor to investigate the interacting effects of freshwater inflows and tides in and along the mangrove ecotone of south Florida. This effort is being accomplished through the use of coupled, numerical, surface-water and ground water flow models of the region. The investigation is facilitated, in part, by the TIME web site, http://sofia.usgs.gov/time.

Map indicating location of each station within the TIME Data database.
Figure 1. Map indicating location of each station within the TIME Data database. Click for larger image.
The primary purposes of the TIME web site are: (1) to provide project scientists ready access to all data required as input to the models; (2) to provide project scientists with an efficient mechanism for sharing data, model output and other information; and (3) to disseminate project findings to other interested researchers. The TIME web site is organized into several sections, including "TIME Data" for sharing data, "What’s New?" for displaying timely results, and "Scientific Links" for directing users to additional sites of scientific interest in south Florida. Each of these sections can be viewed by selecting an appropriate link on the main TIME web page.

Data from more than 100 gaging stations in the TIME modeling domain can be viewed and downloaded from the "TIME Data" web pages (fig. 1). The user may choose to: (1) view and/or download data from an individual station for a user-specified time period (fig. 2); (2) download data from multiple stations for a user-specified time period; (3) view a map of the previous day’s rainfall throughout the TIME domain; (4) view a map of the relative water-level change over the last week at stations throughout the TIME domain; or (5) view a map of measured winds throughout the TIME domain for a user-specified date. Each of these views or downloads can be obtained by selecting a link on the main TIME data page or by selecting a station on a map of the TIME domain in the case of viewing and/or downloading data from an individual station for a user-specified time period.

The TIME Data database is designed to store all data that is available for a gaging station during the time period January 1, 1995 to present. Data frequencies are typically hourly, but the database can, and does, store data at other frequencies as well. A majority of the stations’ data are updated daily.

The TIME Data system is designed to store time series of scalar variables. At present, these include stage, rainfall, discharge, salinity, conductivity, wind speed, and wind direction. However, there is no practical limit to the number of different types of time series data that the data system can accommodate, and more types are planned.

Plot of rainfall and stage collected at one station within the TIME Data database for a user specified time period.
Figure 2. Plot of rainfall and stage collected at one station within the TIME Data database for a user-specified time period. Click for larger image.

Data in the TIME Data system are collected by the USGS, the National Park Service, the U.S. Army Corps of Engineers, the National Oceanic and Atmospheric Administration, and the South Florida Water Management District. Information regarding a data point’s source, and any disclaimer provided by the source, is stored with each data point in the system.


(This abstract was taken from the Greater Everglades Ecosystem Restoration (GEER) Open File Report (PDF, 8.7 MB))

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Last updated: 04 September, 2013 @ 02:08 PM (TJE)