BRO2021_307946.xml

<metadata> <idinfo> <citation> <citeinfo> <origin>Surdex Corporation</origin> <pubdate>20210304</pubdate> <title>Digital Orthophotography</title> <geoform>remote-sensing image</geoform> </citeinfo> </citation> <descript> <abstract>Digital orthophotography produced from new aerial photography captured as close as possible to January 1, 2021 as requested by the Broward County Property Appraiser's Office. Acquired imagery took place between December 18, 2020 and December 22, 2020 and is in 4 band, RGB and Near Infrared, 8 bit per channel for 32 bit format. This image data set of 6 inch resolution covers the eastern portion of the County plus a very small perimeter buffer.</abstract> <purpose>To assist the Property Appraiser's Office in providing aerial photography as a raster base map for all mapping and GIS efforts.</purpose> </descript> <timeperd> <timeinfo> <mdattim> <sngdate> <caldate>20201218</caldate> <time>unknown</time> </sngdate> <sngdate> <caldate>20201222</caldate> <time>unknown</time> </sngdate> </mdattim> </timeinfo> <current>ground condition</current> </timeperd> <status> <progress>Complete</progress> <update>As needed</update> </status> <spdom> <bounding> <westbc>-80.27126284340</westbc> <eastbc>-80.25592000290</eastbc> <northbc>26.27138179610</northbc> <southbc>26.25754836460</southbc> </bounding> </spdom> <keywords> <theme> <themekt>Digital Imagery</themekt> <themekey>Orthophotography</themekey> <themekey>2021</themekey> <themekey>Leaf-off</themekey> </theme> <place> <placekt>Broward County</placekt> <placekey>Florida</placekey> </place> <temporal> <tempkt>N/A</tempkt> <tempkey>Spring</tempkey> </temporal> </keywords> <accconst>Unknown to the vendor supplying the finished product.</accconst> <useconst>Unknown to the vendor supplying the finished product.</useconst> <ptcontac> <cntinfo> <cntorgp> <cntorg>BCPA</cntorg> <cntper>Brian Allen</cntper> </cntorgp> <cntaddr> <addrtype>mailing and physical</addrtype> <address>Broward County Property Appraiser</address> <address>115 South Andrews Avenue Room 111</address> <city>Fort Lauderdale</city> <state>FL</state> <postal>33301</postal> <country>US</country> </cntaddr> <cntvoice>(954) 357-6909</cntvoice> </cntinfo> </ptcontac> <native> Version 6.2 (Build 9200) ; Esri ArcGIS 10.5.0.6491</native> </idinfo> <dataqual> <logic>None</logic> <complete>Complete</complete> <posacc> <horizpa> <horizpar>This data set was tested to meet ASPRS Positional Accuracy Standards for Digital Geospatial Data (2014) for a 30 (cm) RMSEx / RMSEy Horizontal Accuracy Class. Actual positional accuracy was found to be RMSEx = 16.7 (cm) and RMSEy = 8.5 cm which equates to Positional Horizontal Accuracy = +/- 32.9 at 95% confidence level. </horizpar> <qhorizpa> <horizpav>1.0</horizpav> <horizpae>Meets ASPRS Class 1.</horizpae> </qhorizpa> </horizpa> <vertacc> <vertaccr>None - this is a horizontal only product.</vertaccr> </vertacc> </posacc> <lineage> <srcinfo> <srccite> <citeinfo> <origin>SURDEX Corporation</origin> <pubdate>20210304</pubdate> <title>Four Band Digital Orthophotography tiff files.</title> </citeinfo> </srccite> <srcscale>1200</srcscale> <typesrc>hardDisk</typesrc> <srctime> <timeinfo> <rngdates> <begdate>20201218</begdate> <begtime>unknown</begtime> <enddate>20201222</enddate> <endtime>unknown</endtime> </rngdates> </timeinfo> <srccurr>ground condition</srccurr> </srctime> <srccitea>Leica ADS</srccitea> <srccontr>Aerial photography captured with a Leica ADS100 Digital Mapping Camera</srccontr> </srcinfo> <procstep> <procdesc>Aircraft was deployed to Southeastern Florida in mid December 2020 for digital image acquisition during a requested time frame. A Cessna Conquest equipped with a Leica ADS100(Digital Mapping Camera) captured 4 band imagery over the entire project area of interest. Imagery was captured at an altitude of 6,100' above mean terrain, not allowing for cloudy conditions. Four bands (rgb natural color and color infrared) of raw camera data were processed by Surdex using Leica X Pro software coupled with Surdex proprietary image handling software for color correction and dodging. Post processing of Airborne and Ground GPS data was performed with Waypoint Consulting's GrafNav software. Aerial Triangulation was completed using Leica X Pro Automatic Triangulation and rectification of imagery to the client supplied DEM was completed using Surdex proprietary software. The DEM utilized in this project was derived from aerial LiDAR bare-earth data provided by various sources, ranging from 2007-2020. Hydro-Flattened Digital Elevation Models (DEMs) files were combined together. The merged DEM was checked for consistency and accuracy at the survey locations. It was assessed to be of sufficient accuracy to support the generation of the 6-inch resolution orthophotography. The density of the DEM points are at a 6 foot post spacing. When necessary, a Semi-Global matching (SGM) correlation process and stereo collection was used to generate an elevation model for bridge locations and areas in need of an update. This correlated DEM was merged and reviewed for anomalies and completeness. The SGM DEM was merged and feathered to the client provided lidar to make a smooth transition. In order to achieve the best color correction results all orthos were generated to support this process. National Elevation Data (NED) was downloaded and added around the project area to support full ortho coverage and to support the ortho color correction. The water on the Eastern edge of project was zeroed out and gridded. The orthophoto strips generated by XPro are managed using Surdex's SurGroupTool software environment. Color correction and final color balancing of the orthophotos take place utilizing proprietary color correction tools developed by Surdex. After color correction, ortho mosaic seamlines were generated automatically using SurGroupTool. Each seamline was reviewd and edited for best placement by orthophoto technicians. After seamline edits an orthophoto master tile set is cut and visual inspection was performed on all orthophoto tiles. Technicians review all bridge decks and buildings for warp and accuracy. Orthophoto correction shapefiles are created to track ortho anomalies. In areas where bridge/feature warping was adverse, technicians created an orthophoto patch of the affected area utilzing photogrammetrically collected bridges and mosaicked in the corrected orthophoto image patch. Mosaicking, QC and final tiled products were produced using proprietary Surdex software.</procdesc> <procdate>unknown</procdate> <proccont> <cntinfo> <cntorgp> <cntorg>SURDEX Corporation</cntorg> <cntper>Jim Gottgetreu</cntper> </cntorgp> <cntpos>Project Management</cntpos> <cntaddr> <addrtype>mailing and physical</addrtype> <address>520 Spirit of Saint Louis Boulevard</address> <city>Chesterfield</city> <state>MO</state> <postal>63005</postal> </cntaddr> <cntvoice>636-368-4436</cntvoice> </cntinfo> </proccont> </procstep> </lineage> </dataqual> <spdoinfo> <direct>Raster</direct> <rastinfo> <rasttype>Pixel</rasttype> <rowcount>10000</rowcount> <colcount>10000</colcount> </rastinfo> </spdoinfo> <spref> <horizsys> <planar> <mapproj> <mapprojn>NAD 1983-2011 StatePlane Florida East FIPS 0901 Feet</mapprojn> <transmer> <sfctrmer>0.9999411764705882</sfctrmer> <longcm>-81.0</longcm> <latprjo>24.33333333333333</latprjo> <feast>656166.6666666665</feast> <fnorth>0.0</fnorth> </transmer> </mapproj> <planci> <plance>coordinate pair</plance> <coordrep> <absres>0.5</absres> <ordres>0.5</ordres> </coordrep> <plandu>foot_us</plandu> </planci> </planar> <geodetic> <horizdn>D North American 1983</horizdn> <ellips>GRS 1980</ellips> <semiaxis>6378137.0</semiaxis> <denflat>298.257222101</denflat> </geodetic> </horizsys> </spref> <distinfo> <distrib> <cntinfo> <cntorgp> <cntorg>Florida Department of Transportation</cntorg> <cntper>Jared Causseaux</cntper> </cntorgp> <cntaddr> <addrtype>mailing and physical</addrtype> <address>Florida Department of Transportation</address> <address>605 Suwannee St. MS 5L</address> <city>Tallahassee</city> <state>FL</state> <postal>32399-0450</postal> <country>US</country> </cntaddr> <cntvoice>850-414-4111</cntvoice> </cntinfo> </distrib> <distliab>NO WARRANTIES: This data is made available by the Florida Department of Transportation on an "as is," "as available" basis without warranties of any kind, express or implied, including, but not limited to, those of TITLE, MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE or NON-INFRINGEMENT or any warranty arising from a course of dealing, usage, or trade practice. DISCLAIMER OF LIABILITY: The user of this data assumes all responsibility and risk for the use of the data. Under no circumstances, including negligence, shall the Florida Department of Transportation or its employees be liable for any DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY or CONSEQUENTIAL DAMAGES, or LOST PROFITS that result from the use, misuse or inability to use the data. Nor shall the Florida Department of Transportation, or its employees be liable for any damages resulting from or related to reliance upon the data; mistakes in the data, omissions from the data, interruptions, deletion of files, computer viruses, errors in the data, defects in the data, or any failure of performance, communications failure, theft, destruction or unauthorized access to the data</distliab> <stdorder> <digform> <digtinfo> <formname>SID</formname> <formvern>Unknown</formvern> <formspec>Unknown</formspec> <filedec>Data size of hard drive deliverable is 1.4TB</filedec> <transize>3415</transize> </digtinfo> <digtopt> <offoptn> <offmedia>Unknown</offmedia> <recfmt>Unknown</recfmt> </offoptn> </digtopt> </digform> <fees>0</fees> <ordering>The imagery distributed by FDOT is a combination of in-house collection and creation of orthorectified imagery products as well as imagery procured through contractual agreements with consultants and other government agencies. This lineage is documented in the sucessive additions to this metadata document. This imagery is ultimately distributed via FDOT's Aerial Photo Lookup System web application in a compressed, MrSID generation 3 format as 3-band RGB imagery</ordering> </stdorder> <availabl> <timeinfo> <sngdate> <caldate>20201218</caldate> <time>unknown</time> </sngdate> </timeinfo> </availabl> </distinfo> <metainfo> <metd>20210304</metd> <metc> <cntinfo> <cntorgp> <cntorg>SURDEX Corporation</cntorg> <cntper>Jim Gottgetreu</cntper> </cntorgp> <cntpos>Project Manager</cntpos> <cntaddr> <addrtype>mailing and physical</addrtype> <address>520 Spirit of Saint Louis Boulevard</address> <city>Chesterfield</city> <state>MO</state> <postal>63005</postal> <country>US</country> </cntaddr> <cntvoice>636-368-4436</cntvoice> <cntemail>jimgsurdex.com</cntemail> </cntinfo> </metc> <metstdn>FGDC Content Standard for Digital Geospatial Metadata</metstdn> <metstdv>FGDC-STD-001-1998</metstdv> <mettc>local time</mettc> </metainfo> </metadata>