Name: Bathymetric Elevations, Orange Lake, 1997 (SJRWMD)
Display Field: TDEPTH_FT2
Type: Feature Layer
Geometry Type: esriGeometryPoint
Description: This layer contains lake level, water depth, sediment thickness and vegetation information for 1830 sampling points in Orange Lake. Thie dataset was created from the excel table "olplot.xls", which is located under the "tables" directory. The table was part of a deliverable from a contract awarded to Environmental Consulting & Technology, Inc. in 1997. The title of the report was: "Bathymetric and Sediment Depth Mapping and Floating Island Survey of Orange Lake", and it could be found in the District's library as of February 2003. The "Oldplot.xls" table is located under Volume 1, Appendix A of the report.This is a Minimum Flows and Levels (MFL) water body to be evaluated in 2020.
Name: Bathymetric Elevations, Lake Monroe, 2004 (SJRWMD)
Display Field: NGVD29
Type: Feature Layer
Geometry Type: esriGeometryPoint
Description: Layer represents points for the top of sediment layer in Lake Monroe. Data was collected as part of a bathymetric and sediment thickness survey conducted by MACTEC Engineering and Consulting, Inc during the summer of 2004. Details about data collection and procedures can be found in the report resulting from this contract. GIS methodology will be described in this metadata file. "St. Johns River Water Management District Middle Basin Lake Monroe and Lake Harney Specific Purpose Survey: Bathymetric Survey and Sediment Thickness Survey Seminole and Volusia Counties" - August 9, 2004 Report can be found at the District library? or from Middle Basin staff.
Copyright Text: Data was created by Karen Zahalka of MACTEC
Name: Bathymetric Near-Shore Elevations, Lake Apopka, 2007-8 (SJRWMD)
Display Field: PNT
Type: Feature Layer
Geometry Type: esriGeometryPoint
Description: Professional Engineering Consultants, Inc. was contracted by the St. John's River Water Management District (SJRWMD), under Contract #SK422FO, Work Order #1 on July 26, 2007, to perform surveying and mapping services for the "near portion" of the updated topographic survey of Lake Apopka. The projcct scope of work for this assignment was to perform the profiles required for the "near shore" portion of the Lake Apopka topographic survey update. The project entailed surveying a total of23 defined profile sites along the shoreline of the lake. Sites E, F, H, K, L, N, P, S, T, V, X, Y, Z, BB, GG, JJ, LL, NN, OO, QQ, and SS were surveyed from elevation 63.0 feet to elevation 66.0 feet. Two additional sites, C and W, were surveyed from 63.0 feet to 68.0 feet. The digital deliverables required for this assignment include all surveyed data in ArcView shape and ASCII text files, as well as aerial exhibits in pdf format which depict each of the surveyed profile lines and the surrounding area. Elevation of the points was originally collected in NGVD 1929 vertical datum. NAVD 1988 elevations were computed from the NGVD 1929 values using VERTCON/CORPSCON software. Elevation values for both vertical datums are included in the attribute table. Note: The metadata for this layer was constructed from information contained in the "Surveyor's Report for Lake Apopka/Near Shore Topographic Survey, Lake County & Orange County, Florida".
Name: Bathymetric Elevations, Lake Apopka, 2007-8 (SJRWMD)
Display Field: DESCRIPT
Type: Feature Layer
Geometry Type: esriGeometryPoint
Description: Bathymetry elevation points of Lake Apopka. Gathered from calibrated soundings by Morgan & Eklund, Inc. 2007 - 2008.Lake Apopka Bathymetry point data file (e.g. alldata_UTM.txt) with a format of (point#, northing, easting, elevation, feature code). Northing and Easting values in UTM NAD83(90), Zone 17 North, meters. Elevation values delivered in NGVD 1929, feet. and converted to NAVD88 feet.
Copyright Text: Original data gathered by: Morgan & Eklund, Inc., Professional Survey Consultants, under the supervision of John R. Morgan, II, PLS #3520