New Jersey 2015 High Resolution Orthophotography, NAD83(2011) NJ State Plane Feet, MrSID Tiles  
Downloadable Data 
New Jersey 2015 High Resolution Orthophotography, NAD83(2011) NJ State Plane Feet, MrSID Tiles
 
Keywords:
  Theme:   image map, rectified photograph, orthoimage, rectified image, 12 inch orthoimage, orthophoto, natural color orthophoto, aerial photograph, remote sensing, 1 foot, aerial photography, digital orthophotography, digital orthoimagery, digital land base, 4 band, color infrared, near-infrared, imageryBaseMapsEarthCover, njfw_orthophoto 
  Place:   New Jersey, NJ, United States of America, USA, US, Bergen County, Burlington County, East Coast, Cumberland County, Union County, Somerset County, Gloucester County, Warren County, Sussex County, Monmouth County, Mid Atlantic, Middlesex County, Essex County, Ocean County, Salem County, Mercer County, Camden County, Cape May County, Passaic County, Atlantic County, Morris County, Hudson County, Hunterdon County 
 
Description:
  Abstract:  Digital orthophotography of New Jersey in NJ State Plane Coordinate System NAD83 Coordinates, U.S. Survey Feet. The aerial photography of New Jersey was captured March - May, 2015.Multi-spectral digital orthophotography was produced at a scale of 1:2400 (1"=200') with a 1 foot pixel resolution for the entire state, totaling approximately 8,162 square miles.Digital orthophotography combines the image characteristics of a photograph with the geometric qualities of a map. Each digitized perspective aerial photograph is rectified for camera lens distortion, vertical displacement caused by terrain relief and variations in aircraft altitude and orientation. The tiled image product is available as MG4 (4-band, natural color and near-infrared) 5,000 x 5,000 ft tiles, and as MG3 (3-band, natural color) tiles for use in Autodesk products.The NJ statewide imagery also is available as live WMS service (both natural color and false color infrared) published by NJ Office of Information Technology, Office of Geographic Information Systems. The service is documented separately.
  Purpose:  These data depict geographic features on the surface of the earth. Orthophotos are useful as base maps, interim maps, reference base for field and emergency response mapping, and as a general base for GIS data development and comparison. The data were created to provide easily accessible geospatial information which is readily available to enhance the capability of Federal, State, and local emergency responders, as well as plan for homeland security efforts. These data also support The National Map.
  Supplemental Information:  Multi-spectral digital orthophotography was produced at a scale of 1:2400 (1 in = 200 ft) with a 12 inch pixel resolution for the New Jersey - State Plane project area. Digital orthophotography combines the image characteristics of a photograph with the geometric qualities of a map. Orthophoto data is produced through the use of digitized perspective aerial photographs or other remotely sensed image data. This data is processed into a digital product that has been rectified for camera lens distortion, vertical displacement caused by terrain relief, and variations in aircraft altitude and orientation. Acquisition information, processing, accuracies, etc. apply only to the data collected under Task Order G15PD00279. The information reported does not include imagery acquired and produced by the US Army Corps of Engineers (USACE) and AXIS Geospatial. However, tile counts and boundary coordinates include the USACE imagery. This dataset consists of MrSID orthoimage tiles compressed at 1:10 ratio (lossy), with sdw world files and metadata in several formats.The imagery also was delivered as uncompressed, ortho photo tiles formatted as 16-bit, 4-band (RGB and NIR) GeoTIFF images with TIF world files. A total of 9,201 tiles were produced in NAD83 (2011) State Plane New Jersey, US survey feet; tile size is 5,000 ft x 5,000 ft and uses the NJOIT index. The Microsoft UltraCam Falcon and Eagle large format digital camera was used to capture 4-band (RGB and NIR), 16-bit imagery at a Nominal Acquisition Altitude of 16,480' (AGL) during the Spring of 2015 on the following flight dates: -March 29, 2015-A (N344Q; 40312131) -March 29, 2015-B (N344Q; 40312131) -Apr 1, 2015-A (N344Q; 40312131) -Apr 2, 2015-A (N344Q; 40312131) -Apr 6, 2015-A (N441MD; 817310) -Apr 16, 2015-A (N87WS; 50617043) -Apr 18, 2015-A (N441MD; 817310) -Apr 19, 2015-A (N170TA; 50811038) -Apr 19, 2015-A (N441MD; 817310) -Apr 19, 2015-B (N441MD; 817310) -Apr 26, 2015-A (N87WS; 60617043) -Apr 29, 2015-A (N191TA; 5039383) -May 2, 2015-A (N87WS; 50617043) -May 3, 2015-A (N87WS; 50617043) The Nominal Acquisition Altitude of 16,480' (AGL) was used to capture the imagery. Supplemental flight lines were also acquired over defined urban areas of Atlantic City, Jersey City, Newark, Camden, and Trenton in order to provide additional imagery to be used in the process of minimizing building lean during orthophotography production. Maximum and mean differential baseline lengths were not generated for the DVRPC/LVPC/NJ/YCPC orthoimagery project due to the use of Applanix SmartBase software used to process and compute atmospheric errors within a specified GNSS multi-base network. SmartBase processing offers a number of significant benefits including: The distance to the nearest reference station can be extended well beyond 30 km. The time to fix integer ambiguities is significantly reduced. The overall reliability of fixing integer ambiguities is increased. No special processing is required in the RTK engine, as it is the case for a centralized multi-base approach. Due to the complexity of the typical reference station network used in SmartBase processing, determining maximum and mean differential baseline lengths is not feasible for this project. For the 12 inch GSD Ortho image, horizontal positional accuracy was designed not to exceed 4 feet NSSDA 95% confidence.
 
Publisher Information
  Publisher:   NJ Office of Information Technology (NJOIT), Office of Geographic Information Systems (OGIS) 
  Publication Place:   PO Box 212, Trenton, NJ, 08625-0212, US 
  Publication Date:   20160224 
  Direct NJGIN
metadata link:  
https://njgin.state.nj.us/NJ_NJGINExplorer/ShowMetadata.jsp?docId=188471FF-2803-4145-A5AD-605DE86D3B4D 
 
Spatial Domain:
  West Coordinate:   -75.572848 
  East Coordinate:   -73.873522 
  North Coordinate:   41.372626 
  South Coordinate:   38.914716 
  Coverage Area:   New Jersey 
 
Spatial Data Information:
  Data Type:   Raster 
  Data Format:   MrSID MG4 - 4 band, natural color plus near-infrared; and MrSID MG3 - 3 band natural color only 
  Data Projection:   NAD 1983 2011 StatePlane New Jersey FIPS 2900 Ft US 
  Resolution:   X Axis - 0.000000007285705372339636, Y Axis - 0.000000007285705372339636, Units - foot_us  
 
 
Status of the Data:
  Progress:   Complete 
  Data Update Frequency:   Irregular 
 
Data Storage and Access Information:
  Access Constraints:  None.
  Use Constraints:  Acknowledgement of "NJ Office of Information Technology (NJOIT), Office of Geographic Information Systems (OGIS)" as the data source would be appreciated. Reference date in a citation for the data in this service should be 2015. Read the balance of this metadata record for characteristics that affect fitness for a particular use. Most users will want to display either bands 1,2,3 (natural color RGB), or 4,1,2 (false color near-infrared composite). Users should be aware that temporal changes may have occurred since this data set was collected and that some parts of this data may no longer represent actual surface conditions. Users should not use this data for critical applications without a full awareness of its limitations.
  Online Linkage:  https://njgin.state.nj.us/NJ_NJGINExplorer/IW.jsp?DLayer=NJ%202015%20High%20Resolution%20Orthophotography

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