{ "currentVersion": 10.91, "id": 0, "name": "Ortho2008", "type": "Raster Layer", "description": "Process_Description: Digital aerial imagery was obtained using a large format Z/I Digital Mapping Camera system (DMC) equipped with Airborne GPS/IMU covering the entire State of New Jersey. A total of 205 flight lines with 9740 frames were collected in the spring of 2007 and 2008 in multi-spectral (RGB and NIR) 16 bits per band format. The imagery was acquired with a 4.7244\" (120 m/m) focal length at an altitude above mean terrain of 9,600' to yield a raw pixel resolution of 0.96' suitable for photogrammetric mapping and orthophoto production. The imagery was collected during leaf off conditions in the spring of 2007 and 2008 under conditions free from clouds and cloud shadows, smoke, fog, haze, light streaks, snow, ice on water bodies, foliage, flooding, and excessive soil moisture. The sun angle threshold was 35 degrees south of US Highway 1 and 40 degrees north of US Highway 1. The imagery consisted of panchromatic, blue, green, red and near infrared bands. The three color bands and near infrared bands have been pan sharpened and archived as frame imagery. Imagery for the photogrammetric mapping and digital orthophotos was captured according to the USACE EM-1110-1-1000 regarding, snow, haze and cloud cover, and modified as appropriate to accommodate the requirements specific to Z/I DMC camera technologies and as specified in this scope of work.Source_Used_Citation_Abbreviation: RAWsProcess_Date: 20080714Source_Produced_Citation_Abbreviation: GeorefsProcess_Step:Process_Description: A total of 66 ground based photo control points and 14 blind QC ground based photo control points were established throughout the State using a combination of conventional and GPS survey methods in order to support softcopy aerotriangulation and photogrammetric mapping meeting the accuracies specified in this Scope of Work. This control supplemented the exposure station control obtained from the onboard Airborne Global Positioning System (ABGPS) and Inertial Measurement Unit (IMU). Photo control points established for this project have a combined local and network accuracy at 95% confidence of less than or equal to five (5) centimeters horizontally and vertically as determined by the residuals of the network adjustment. Ground control collection followed requirements set forth in USACE EM-1110-1-1000, and were modified as appropriate to accommodate the specifications related to ABGPS collection specific to these end photogrammetric mapping requirements. All horizontal and vertical control was prepared under the supervision of State of New Jersey licensed Professional Land Surveyors.Source_Used_Citation_Abbreviation: Geodetic controlProcess_Date: 20080208Source_Produced_Citation_Abbreviation: ControlProcess_Step:Process_Description: Softcopy aerotriangulation was performed on three large blocks of imagery utilizing the airborne GPS/IMU data, GPS ground control and image coordinate measurements allowing the direct computation of the exterior orientation parameters for each image frame to support the photogrammetric process and orthophoto production. The adjusted Root Mean Square Error (RMSE) of all horizontal and vertical control points used for any single block adjustment was 1.0 foot or better. At the same time, residuals on each refined image coordinate remain less than 12 microns and residuals on any horizontal or vertical control point did not exceed plus or minus 2.0 feet. Within each block, the blind QA ground survey coordinates were within two times the RMSE (two feet) of the corresponding AT derived coordinates.Source_Used_Citation_Abbreviation: ABGPSSource_Used_Citation_Abbreviation: ControlSource_Used_Citation_Abbreviation: RAWsProcess_Date: 20080712Source_Produced_Citation_Abbreviation: ATProcess_Step:Process_Description: This process involved the development of seamless topographic landform elevation dataset to support the production of digital orthophotography using photogrammetric digitizing methods and/or the utilization of existing public domain elevation data sets that meet or exceed required horizontal and vertical accuracies. Existing terrain surfaces utilized for this project include photogrammetrically derived DEM data from the 2002 New Jersey Orthophoto Project as well as recently acquired LiDAR bare earth and other recently developed photogrammetric derived terrain surfaces. The topographic features included a grid of elevation points and break lines that define ridges, valleys, edge of water, transportation features and abrupt changes in elevation. The final DTM is suitable for orthophoto production only (not suitable for contour generation). The DTM is used to then generate a Triangulated Irregular Network (TIN) to support orthophoto production. All final elevation surfaces meet NSSDA Standards of six (6) feet or less at 95% confidence level. NSSDA accuracy at the 95% confidence level is defined to be equal to 1.96 times the RMSE as calculated by using test points to compare elevations interpolated from the delivered TIN with elevations derived from higher order surveys for the same horizontal positions.Source_Used_Citation_Abbreviation: DTMSource_Used_Citation_Abbreviation: DEMSource_Used_Citation_Abbreviation: LiDARProcess_Date: 20080715Source_Produced_Citation_Abbreviation: DTM/DEMProcess_Step:Process_Description: Utilizing all four pan-sharpened bands [blue (B), green (G), red(R) and near infrared (IR)] digital orthorectification was performed using cubic convolution algorithms resulting in a spatial and radiometric transformation of the digital image from line/sample space into the New Jersey State Plane Coordinate System, NAD 83, US Survey Feet. The interior and exterior orientation parameters from the aerotriangulation process were used to project each pixel into the ground coordinate system, while the ortho grade DEM/DTM was used to correct for relief displacement. Radiometric correction software and techniques were used to create orthophoto files that minimize the appearance of image seams and without loss of feature signature. Orthophotos are checked for geometric accuracy, image quality and tonally balanced to produce a uniform contrast and tone across the entire project. The individual overlapping orthophoto frames were mosaicked together and the final tiles were extracted from the image set to adhere to the New Jersey 5,000' x 5,000' tiling scheme consisting of 9,201 individual ortho tiles. Delivery included digital ortho photos at a 1' pixel ground sample distance in the following formats: 16 bit, 4 band (RGB and NIR) uncompressed GeoTIFF; 8 bit, 3 band (RGB) compressed MrSID; 8 bit, 4 band (RGB and NIR) compressed JPEG2000 formats. The ortho photos meet a horizontal accuracy of four (4) feet or less at 95% confidence level when compared to higher accuracy check points based on NSSDA testing standards.Source_Used_Citation_Abbreviation: GeorefsSource_Used_Citation_Abbreviation: ATSource_Used_Citation_Abbreviation: ControlSource_Used_Citation_Abbreviation: DTM/DEMProcess_Date: 20080910Source_Produced_Citation_Abbreviation: OrthosProcess_Step:Process_Description: Orthophotographs were compressed into 8-bit, 4-band, JPEG2000 files with a 10:1 (lossy) compression ratio, tiled at 1024x1024, 8 layers, 5 precincts using GeoExpress Unlimited 7. Build 7.0.0.2052.Head.Source_Used_Citation_Abbreviation: OrthosProcess_Date: 20080925Source_Produced_Citation_Abbreviation: JPEG2000Spatial_Data_Organization_Information:Direct_Spatial_Reference_Method: RasterRaster_Object_Information:Raster_Object_Type: pixelRow_Count: 5000Column_Count: 5000Spatial_Reference_Information:Horizontal_Coordinate_System_Definition:Planar:Grid_Coordinate_System:Grid_Coordinate_System_Name: State Plane Coordinate System 1983State_Plane_Coordinate_System:SPCS_Zone_Identifier: 2900Transverse_Mercator:Scale_Factor_at_Central_Meridian: 0.999900Longitude_of_Central_Meridian: -74.500000Latitude_of_Projection_Origin: 38.833333False_Easting: 492125.000000False_Northing: 0.000000Planar_Coordinate_Information:Planar_Coordinate_Encoding_Method: row and columnCoordinate_Representation:Abscissa_Resolution: 1.0Ordinate_Resolution: 1.0Planar_Distance_Units: survey feetGeodetic_Model:Horizontal_Datum_Name: North American Datum of 1983 (NSRS 2007)Ellipsoid_Name: Geodetic Reference System 1980Semi-major_Axis: 6378137.000000Denominator_of_Flattening_Ratio: 298.257222", "geometryType": null, "copyrightText": "Originator: NJ Office of Information Technology (NJOIT), Office of Geographic Information Systems (OGIS)\nPublication_Date: 200810\nTitle: New Jersey 2007 - 2008 High Resolution Orthophotography, JPEG2000 5K Tiles\nGeospatial_Data_Presentation_Form: remote-sensing image\nPublication_Information:\nPublication_Place: Trenton, NJ\nPublisher: NJ Office of Information Technology (NJOIT), Office of Geographic Information Systems (OGIS)\nOnline_Linkage: http://njgin.nj.gov/OIT_IW/index.jsp", "parentLayer": null, "subLayers": [], "minScale": 0, "maxScale": 0, "defaultVisibility": true, "extent": { "xmin": 325000, "ymin": 195000, "xmax": 385000, "ymax": 270000, "spatialReference": { "wkid": 102711, "latestWkid": 3424 } }, "hasAttachments": false, "htmlPopupType": "esriServerHTMLPopupTypeNone", "displayField": "", "typeIdField": null, "subtypeFieldName": null, "subtypeField": null, "defaultSubtypeCode": null, "fields": null, "geometryField": {}, "indexes": [], "subtypes": [], "relationships": [], "canModifyLayer": false, "canScaleSymbols": false, "hasLabels": false, "capabilities": "Map,Query", "supportsStatistics": false, "supportsAdvancedQueries": false, "supportedQueryFormats": "JSON, geoJSON", "isDataVersioned": false, "ownershipBasedAccessControlForFeatures": {"allowOthersToQuery": true}, "useStandardizedQueries": true, "advancedQueryCapabilities": { "useStandardizedQueries": true, "supportsStatistics": false, "supportsHavingClause": false, "supportsCountDistinct": false, "supportsOrderBy": false, "supportsDistinct": false, "supportsPagination": false, "supportsTrueCurve": false, "supportsReturningQueryExtent": true, "supportsQueryWithDistance": true, "supportsSqlExpression": false }, "dateFieldsTimeReference": null, "supportsCoordinatesQuantization": true, "serviceItemId": "0ae18ca6ef1949e0b32971e6a9b1586f" }