{ "culture": "en-US", "name": "", "guid": "", "catalogPath": "", "snippet": "This polygon feature class defines the extent and type of vegetation within the Stormwater Treatment Areas (STA -1E, STA -1W, STA-2, STA-3/4, STA-5, and STA-6) using aerial photography taken during March 7 to 22, 2011. The data were collected with the intent of relating the treatment effectiveness of the STAs to the composition of their vegetation communities. \n\nThe 2011 digital imagery was obtained in May 2011 utilizing a Vexcel UltraCamX large format digital camera mounted in a Cessna 208 Grand Caravan aircraft at an approximate altitude of 13,500 feet above ground level. Raw images were processed using Microsoft Vexcel UltraMap 1.0. The raw imagery has a ground sampling distance of 30.5 centimeter (12 inches). Stereo imagery was captured with 60 percent overlap between adjacent frames and 40 percent overlap between adjacent flight lines. \n\nSTA vegetation cover maps for Stormwater Treatment Area 1 East (STA-1E) and Stormwater Treatment Area 1 West (STA-1W), Stormwater Treatment Area 2 (STA-2) and Stormwater Treatment Area 3/4 (STA-3/4), and Stormwater Treatment Area 5 (STA-5) and Stormwater Treatment Area 6 (STA-6) were produced using unsupervised classification on the color infrared bands of this imagery. Image processing software (ERDAS Imagine 2010) was also used to reclass, filter, and aggregate the initial classification. Expert knowledge and ground-truthing of vegetation composition were employed to conduct final edits, calculate acreage, and output results cartographically using Geographic Information System (GIS) software.", "description": "

The South Florida Water Management District (District or SFWMD) and the U.S. Army Corps of Engineers have built six large treatment wetlands, referred to as Stormwater Treatment Wetlands (STAs), in the Everglades Agricultural Area (EAA) as part of a State and Federal initiative to protect the Everglades (Chimney and Goforth, 2001; Sklar et al., 2005). These treatment wetlands are intended to reduce high phosphorus concentrations in surface runoff coming from the EAA before this water reaches the northern portion of the present-day Everglades, i.e., the Water Conservations Areas. Each STA is subdivided into a number of treatment cells by interior levees. Treatment wetlands reduce the concentration of water-borne pollutants through natural bio-geochemical processes (Kadlec and Wallace, 2009). Wetland biogeochemistry, in turn, is intimately associated with the extent and condition of the wetland\u2019s vegetation community (Reddy and DeLaune, 2009). Because of the important relationship between wetland treatment performance and vegetation, the vegetation communities in the STAs have been monitored throughout their operational histories. This effort was mandated as a condition of STA operating permits and by the Process Development and Engineering section of the District\u2019s Long Term Plan (Burns & McDonnell, 2003). The vegetation communities in the STAs have been monitored using two different approaches: (1) vegetation maps were prepared for each STA based on the spatial distribution of different vegetation types interpreted from aerial photographs and (2) field surveys were conducted at a network of sites within each wetland to catalog plant taxa and assess vegetation areal coverage of the dominant taxa. The field-survey program was initiated as a cost-effective alternative to mapping for characterizing the plant community.<\/SPAN><\/P>

For information about the imagery collection access this file: <\/SPAN><\/SPAN>2011 Imagery Collection in STAs<\/SPAN><\/A><\/P>

The Survey Report can be accessed from here: <\/SPAN><\/SPAN>2011 Survey Report<\/SPAN><\/A><\/P>

For details how the data was processed see the Lineage section.<\/SPAN><\/P>

<\/P><\/DIV><\/DIV><\/DIV>", "summary": "This polygon feature class defines the extent and type of vegetation within the Stormwater Treatment Areas (STA -1E, STA -1W, STA-2, STA-3/4, STA-5, and STA-6) using aerial photography taken during March 7 to 22, 2011. The data were collected with the intent of relating the treatment effectiveness of the STAs to the composition of their vegetation communities. \n\nThe 2011 digital imagery was obtained in May 2011 utilizing a Vexcel UltraCamX large format digital camera mounted in a Cessna 208 Grand Caravan aircraft at an approximate altitude of 13,500 feet above ground level. Raw images were processed using Microsoft Vexcel UltraMap 1.0. The raw imagery has a ground sampling distance of 30.5 centimeter (12 inches). Stereo imagery was captured with 60 percent overlap between adjacent frames and 40 percent overlap between adjacent flight lines. \n\nSTA vegetation cover maps for Stormwater Treatment Area 1 East (STA-1E) and Stormwater Treatment Area 1 West (STA-1W), Stormwater Treatment Area 2 (STA-2) and Stormwater Treatment Area 3/4 (STA-3/4), and Stormwater Treatment Area 5 (STA-5) and Stormwater Treatment Area 6 (STA-6) were produced using unsupervised classification on the color infrared bands of this imagery. Image processing software (ERDAS Imagine 2010) was also used to reclass, filter, and aggregate the initial classification. Expert knowledge and ground-truthing of vegetation composition were employed to conduct final edits, calculate acreage, and output results cartographically using Geographic Information System (GIS) software.", "title": "Stormwater Treatment Area (STA) - Vegetation (2011)", "tags": [ "vegetation", "photointerpretation", "digital imagery", "vegetation mapping", "exotic vegetation", "stage", "hydrology", "bathymetry", "drought", "terrestrial species", "native vegetation", "aerial imagery", "vegetation classification", "Stormwater Treatment Area", "STA", "Water Management District", "Florida", "SFWMD", "biota", "boundaries", "environment", "location", "inlandWaters", "geoscientific Information", "2011" ], "type": "", "typeKeywords": [], "thumbnail": "", "url": "", "minScale": 150000000, "maxScale": 5000, "spatialReference": "", "accessInformation": "SFWMD Scientific Data Management Policies and Procedures govern these environmental monitoring data.\n\nAcknowledgment of theSouth Florida Water Management District would be appreciated for products derived from this file.", "licenseInfo": "