Metadata - Summary of data in the Atlas
The Atlas contains 709 water resources which includes 642 lakes and 67 rivers . Data recorded in the Atlas reaches back 124 years, starting on Monday, January 1, 1900. The most recent data is from Saturday, November 23, 2024. Over 37,394,522 data samples have been included in the Atlas! The samples came from over 76 data sources provided by 26 different data providers. These people and agencies have helped make the Atlas an integral tool for managing our water resources.
Geographic Information Systems Data
Geographic Information Systems (GIS) data consists largely of land mapping and spatial data and is used in a wide variety of fields. The lay of the land can affect almost every aspect of life, including an area's culture, government, environment, and commerce, making GIS information important to everyone. Fields such as anthropology, medical science, and natural science use GIS to measure and predict the impact of geography on a region. By mapping water resources, the Atlas provides spatial information useful to citizens, water management professionals, and scientists alike. The following core datasets are processed as part of geospatial analyses, the results of which are presented directly within Atlas components:
| GIS Dataset Name | Data Custodian | Data Current as of: | More Information |
|---|---|---|---|
| 1999 Land-Use and Land-Cover | Southwest Florida Water Management District | 3/1/2004 | |
| 2003 Aerial Photography | Orange County | Not Available | |
| EPA Impaired Waters & TMDL Data | US Environmental Protection Agency | 10/23/2017 | |
| FDEP Impaired Waters & TMDL Data | Florida Department of Environmental Protection | Not Available | |
| FEMA Flood Insurance Rate Maps | Federal Emergency Management Agency | 7/1/2005 | |
| FNAI Managed Lands / Conservation Data | Florida Natural Areas Inventory | 3/8/2019 | |
| Major Streets | Orange County | Not Available | |
| Muncipal Boundaries | Orange County | Not Available | |
| Orange County Drainage Features | Orange County | Not Available | |
| Population Density (2000) | U.S. Department of Commerce | 1/1/2000 | |
| Population Estimates for Watersheds | U.S. Department of Commerce | 12/31/2021 | |
| Roads | Orange County | Not Available | |
| SJRWMD 2000 Land Use/Land Cover | St. Johns River Water Management District | 9/1/2003 | |
| SJRWMD 2004 Land Use/Land Cover | St. Johns River Water Management District | 1/30/2007 | |
| SJRWMD 2009 Land Use/Land Cover | St. Johns River Water Management District | 7/30/2012 | |
| SJRWMD 2014 Land Use/Land Cover | St. Johns River Water Management District | 1/15/2019 | |
| SJRWMD Bathymetric Maps | St. Johns River Water Management District | 1/1/2002 | |
| SJRWMD Major Basin Delineations | St. Johns River Water Management District | 5/1/2009 | |
| SJRWMD Radar Rainfall Estimates | St. Johns River Water Management District | Not Available | |
| SWFWMD Radar Rainfall Estimates | Southwest Florida Water Management District | Not Available | |
| TIGER Census Data | Florida Department of Environmental Protection | 7/1/2005 | |
| United States Census 2000 Block Group Boundaries | U.S. Department of Commerce | 7/27/2006 11:28:59 AM | |
| USGS 1:24,000 National Hydrography Dataset | University of South Florida Water Institute | 9/1/2009 | |
| Water Atlas Sample Site Locations | University of South Florida Water Institute | 9/1/2009 | |
| Waters Not Attaining Standards (WNAS) | Florida Department of Environmental Protection | Not Available |
Monitoring and Sampling Data
Citizens, scientists, and professionals all contribute to monitoring and sampling data in many ways. Citizens often provide information such as water levels data through volunteer programs. Scientists and professionals set up equipment at sampling stations for measuring attributes such as water quality and hydrology. They provide the data in various formats to the Atlas, which compiles, organizes, and presents the data to help people better understand the county's water resources.