2008051913151000FALSE20210827171131002021090715252700Imp_Surface_Kent_2007169667.500000208189.50000087397.500000151225.5000001002ProjectedGCS_North_American_1983Linear Unit: Meter (1.000000)NAD_1983_StatePlane_Delaware_FIPS_0700<ProjectedCoordinateSystem xsi:type='typens:ProjectedCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/10.1'><WKT>PROJCS["NAD_1983_StatePlane_Delaware_FIPS_0700",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",200000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-75.41666666666667],PARAMETER["Scale_Factor",0.999995],PARAMETER["Latitude_Of_Origin",38.0],UNIT["Meter",1.0],AUTHORITY["EPSG",26957]]</WKT><XOrigin>-5423100</XOrigin><YOrigin>-14209500</YOrigin><XYScale>450267657.86718673</XYScale><ZOrigin>-100000</ZOrigin><ZScale>10000</ZScale><MOrigin>-100000</MOrigin><MScale>10000</MScale><XYTolerance>0.001</XYTolerance><ZTolerance>0.00020000000000000001</ZTolerance><MTolerance>0.00020000000000000001</MTolerance><HighPrecision>true</HighPrecision><WKID>26957</WKID><LatestWKID>26957</LatestWKID></ProjectedCoordinateSystem>1.01500000005000FGDCESRI ArcCatalog 9.2.4.1420enThis dataset identifies the impervious surfaces within Kent County, Delaware including, but not exclusively, paved roads, dirt roads, buildings, sidewalks. These data, in addition to being a stand-alone dataset, were produced to aid the Delaware 2007 LU/LC Update.To identify impervious surfaces for the purpose of modeling such as stormwater, and atmospheric pollutant modeling. The goal of this dataset is to provide Kent County with an accurate representation of impervious surfaces in the county. The dataset is suitable for many planning and modeling purposes, but was designed for input to aid in the developement of the landuse classification layer.State of Delaware, Office of Management and Budget051820082007 Impervious Surface Data, Kent County, Delawarekent07_impervhttp://stateplanning.delaware.gov/info/impervious/2007_impervious.shtmlraster digital dataState of Delaware, Office of Management and BudgetDover, Delawareground condition0303200703302007As needed-75.768620-75.32164239.36228338.786819169667.500000208189.50000087397.500000151225.500000NoneLandUseLandCoverAerial photographyImpervious SurfacesimageryBaseMapsEarthCovertransportationKent CountyDelawareUSNoneFor planning purposes onlyFor planning purposes onlyRaster DatasetState of Delaware, Office of Management and BudgetMike MahaffiePrincipal Plannermailing and physical addressDoverDelaware19901USA
Suite 302, Haslet Building, Third Floor
122 William Penn Street
302-739-3090302-739-6958mike.mahaffie@state.de.usenFGDC Content Standards for Digital Geospatial MetadataFGDC-STD-001-1998local timeMike MahaffieState of Delaware, Office of Management and Budgetmailing and physical addressDoverDelaware19901USA
Suite 302, Haslet Building, Third Floor
122 William Penn Street
302-739-3090Principal Planner302-739-6958mike.mahaffie@state.de.us20080520Downloadable Data51.35851.358State of Delaware, Office of Management and BudgetMike MahaffiePrincipal Plannermailing and physical addressDoverDelaware19901USA
Suite 302, Haslet Building, Third Floor
122 William Penn Street
302-739-3090302-739-6958mike.mahaffie@state.de.usRasterPixel63828385221.0000001.00000081Upper LeftTRUELZ771pixel codesTRUE1 meter1 meterrasterSDRGCS_North_American_1983NAD_1983_StatePlane_Delaware_FIPS_0700row and columnmeters1.0000001.000000North American Datum of 1983Geodetic Reference System 806378137.000000298.257222OBJECTIDOBJECTIDOID400Internal feature number.EsriSequential unique whole numbers that are automatically generated.Table2VAT_PLC_Impervious_2007Table of valuesOriginatorValueValueNumeric100Impervious indicator. 1 = Pervious, 2 = ImperviousOriginatorInteger valueGREENGREENDouble800RGB - Green value.OriginatorColor valueCOUNTCOUNTLong3800Count of featuresOriginatorCount of pixelsCLASS_NAMESClass NamesText3200Description of Value. 1 = Pervious, 2 = Impervious.OriginatorDescription of impervious type.REDREDDouble800RGB - Red valueOriginatorColor valueBLUEBLUEDouble800RGB - Blue valueOriginatorColor valueOPACITYOPACITYDouble800OpacityOriginatorInteger value
455 E. Eisenhower Pkwy.
mailing and physical address
Suite 240
Ann ArborMI48108USSanbornMatt VernierSenior Remote Sensing Analyst734.213.1060734.213.1085mvernier@sanborn.comM-F 9-5The impervious classification was created from 2007 high-resolution satellite imagery (0.25 meter resolution) using automated classification methods in Arc GIS Feature Analyst. To begin the process, a shapefile was created for use in Feature Analyst. Using the shapefile in an editing session, the 0.25 meter imagery was referenced to manually collect training data samples for impervious surface features. A wide representation of features were selected ranging from highways and secondary roads, to industrial buildings and single family houses in an effort to collect samples of all types of impervious surfaces. Once training data was collected, the Feature Analyst learner was set up to process the training sites in order to produce an automated representation of impervious features from the imagery. The learner was configured with a user defined input representation of 25 pixels. An aggregate area of 35 pixels was specified a minimum. Once the learner settings were applied, the first learner iteration was run.
After the first iteration, missed areas were identified using the ad-missed tool in Feature Analyst and another iteration was run using the same Learner configuration as the first phase. A final iteration was run in Feature Analyst in order to remove any clutter. The correct/incorrect tool was used for this final iteration in order to identify correctly and incorrectly classified areas. The result from this iteration was saved for manual editing. The impervious shapefile was converted to a binary image for manual editing. The binary image was then manually edited for incorrectly classified or missed features at a scale of 1:2,500 using the Arc GIS raster editing toolbar.ArcGIS 9.2, Feature Analyst v2.0, Erdas Imagine v9.1Jan-Mar 2008Metadata imported.withheld20080518Metadata imported.withheld20080519Dataset copied.withheld200805190%OSPC GIS PlannerState of Delaware, Office of Management and BudgetPrincipal Planner302-739-3090302-739-6958Suite 302, Haslet Building, Third Floor122 William Penn StreetDoverDelaware19901USFirstMap@delaware.gov20210907ArcGIS Metadata1.0OSPC GIS PlannerState of Delaware, Office of Management and BudgetPrincipal Planner302-739-3090302-739-6958Suite 302, Haslet Building, Third Floor122 William Penn StreetDoverDelaware19901USFirstMap@delaware.govEnterprise Geodatabase Raster Datasethttp://stateplanning.delaware.gov/info/impervious/2007_impervious.shtmlEnterprise Geodatabase Raster Dataset2007 Impervious Surface Data2021-09-01T00:00:002018-08-05T00:00:00State of Delaware, Office of Management and BudgetState of Delaware, Office of Management and BudgetDover, Delawareraster digital dataFirstMapDelaware Department of Technology and Information (DTI)801 Silver Lake BlvdDoverDE19904USFirstMap@delaware.gov302-739-9560FirstMap<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>This dataset identifies the impervious surfaces within the State of Delaware including, but not exclusively, paved roads, dirt roads, buildings, sidewalks. These data, in addition to being a stand-alone dataset, were produced to aid the Delaware 2007 LU/LC Update.</SPAN></P></DIV></DIV></DIV>To identify impervious surfaces for the purpose of modeling such as stormwater, and atmospheric pollutant modeling. The goal of this dataset is to provide Kent County with an accurate representation of impervious surfaces in the county. The dataset is suitable for many planning and modeling purposes, but was designed for input to aid in the development of the landuse classification layer.OSPC GIS PlannerState of Delaware, Office of Management and BudgetPrincipal Planner302-739-3090302-739-6958Suite 302, Haslet Building, Third Floor122 William Penn StreetDoverDelaware19901USFirstMap@delaware.govOSPC GIS PlannerState of Delaware, Office of Management and BudgetPrincipal Planner302-739-3090302-739-6958Suite 302, Haslet Building, Third Floor122 William Penn StreetDoverDelaware19901USFirstMap@delaware.govOSPC GIS Plannerexternal8e4a45af632b3e3742aa56256e9eeef90f25884eFirstMapDelaware Department of Technology and Information (DTI)801 Silver Lake BlvdDoverDE19904USFirstMap@delaware.gov302-739-9560FirstMapTrueFirstMapNew Castle CountyKent CountySussex CountyDelawareUSLandUseLandCoverAerial photographyImpervious SurfacesImageryBaseMapsEarthCoverTransportationLandUseLandCoverAerial photographyImpervious SurfacesImageryBaseMapsEarth CoverTransportationKent CountyNew Castle CountySussex CountyDelawareUS<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>The State of Delaware makes no warranty or representation, expressed or implied, with respect to the quality, content, accuracy, completeness, currency, or non-infringement of proprietary rights, of any of the GIS or other data or information, or any other materials and items, that are displayed or made available for download from this site. All such data, information, items and materials (collectively, the “FirstMap Data”) are provided "as is" and users are fully and solely responsible for any consequences of use. FirstMap Data may have been created from a variety of sources, including sources beyond the control of the State of Delaware, and are subject to change without notice. To the extent you use, apply, add to, modify or implement this information in your own information system or other setting, or otherwise for your own purposes, you do so at your own risk. In no event shall the State of Delaware or its agencies, officers, employees, agents, or representatives be liable for any damages of any kind or nature whatsoever including, but not limited to, direct, indirect, special, punitive, incidental, exemplary or consequential damages arising from your downloading, modifying, sharing, distributing, or using of FirstMap Data even if notified of the possibility of such damages. Further, the State of Delaware does not accept liability for any damages or misrepresentation caused by inaccuracies in the FirstMap Data or as a result of changes to the FirstMap Data, nor is there responsibility assumed to maintain the FirstMap Data in any manner or form.</SPAN></P></DIV></DIV></DIV>For planning purposes onlySee access and use constraints information.ESRI ArcCatalog 9.2.4.1420ground condition2007-03-01T00:00:002007-03-30T00:00:001-75.794642-75.03340139.84318638.449826external8e4a45af632b3e3742aa56256e9eeef90f25884eFirstMapDelaware Department of Technology and Information (DTI)801 Silver Lake BlvdDoverDE19904USFirstMap@delaware.gov302-739-9560FirstMapTrueFirstMapSanbornThe impervious classification was created from 2007 high-resolution satellite imagery (0.25 meter resolution) using automated classification methods in Arc GIS Feature Analyst. To begin the process, a shapefile was created for use in Feature Analyst. Using the shapefile in an editing session, the 0.25 meter imagery was referenced to manually collect training data samples for impervious surface features. A wide representation of features were selected ranging from highways and secondary roads, to industrial buildings and single family houses in an effort to collect samples of all types of impervious surfaces. Once training data was collected, the Feature Analyst learner was set up to process the training sites in order to produce an automated representation of impervious features from the imagery. The learner was configured with a user defined input representation of 25 pixels. An aggregate area of 35 pixels was specified a minimum. Once the learner settings were applied, the first learner iteration was run.
After the first iteration, missed areas were identified using the ad-missed tool in Feature Analyst and another iteration was run using the same Learner configuration as the first phase. A final iteration was run in Feature Analyst in order to remove any clutter. The correct/incorrect tool was used for this final iteration in order to identify correctly and incorrectly classified areas. The result from this iteration was saved for manual editing. The impervious shapefile was converted to a binary image for manual editing. The binary image was then manually edited for incorrectly classified or missed features at a scale of 1:2,500 using the Arc GIS raster editing toolbar.Matt VernierSanbornSenior Remote Sensing Analyst734.213.1060734.213.1085455 E. Eisenhower Pkwy.Suite 240Ann ArborMI48108USmvernier@sanborn.comM-F 9-52008-05-05T00:00:00Metadata imported.withheldWorking file2008-05-05T00:00:00363828385221FalseFalsedatasetEPSG6.18.3(9.3.1.2)FirstMapDelaware Department of Technology and Information (DTI)801 Silver Lake BlvdDoverDE19904USFirstMap@delaware.gov302-739-9560OSPC GIS PlannerState of Delaware, Office of Management and BudgetPrincipal Planner302-739-3090302-739-6958Suite 302, Haslet Building, Third Floor122 William Penn StreetDoverDelaware19901USFirstMap@delaware.govOSPC GIS Planner
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