Allegany County Ortho 4 bd 12in

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: NYS Office of Information Technology Services, GIS Program Office
Publication_Date: 20170120
Title:
Allegany County Ortho 4 bd 12in
Geospatial_Data_Presentation_Form: raster digital data
Series_Information:
Series_Name: NYS Digital Ortho-imagery Program (NYSDOP)
Issue_Identification: 2016 imagery in Allegany County
Publication_Information:
Publication_Place: Albany, New York
Publisher: NYS Office of Information Technology Services, GIS Program Office
Description:
Abstract:
These files contain 2016 digital Ortho-imagery of Allegany County, New York. Image pixel size is 1' GSD. Image type is 4-band, RGB & NIR. The Image horizontal accuracy is within 4' at the 95% confidence level (NSSDA). Each file contains an image covering 2000 ft. by 3000 ft. on the ground.
Purpose:
This digital Ortho-imagery can serve a variety of purposes, from general planning to field reference for spatial analysis to a tool for revision of vector maps. It can also serve as a reference layer for GIS.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20160327
Ending_Date: 20160414
Currentness_Reference:
ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: Irregular
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -78.304825
East_Bounding_Coordinate: -77.712586
North_Bounding_Coordinate: 42.530235
South_Bounding_Coordinate: 41.989472
Keywords:
Theme:
Theme_Keyword_Thesaurus: Orthophoto, ortho
Theme_Keyword: Digital Ortho-imagery
Place:
Place_Keyword_Thesaurus: none
Place_Keyword: Allegany County
Place_Keyword: New York
Access_Constraints:
Use_Constraints:

Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Tim Ruhren
Contact_Organization: NYS ITS GIS Program Office
Contact_Address:
Address_Type: mailing and physical address
Address:
10B Airline Drive
City: Albany
State_or_Province: New York
Postal_Code: 12235
Country: USA
Contact_Voice_Telephone: 518-242-5061
Contact_Facsimile_Telephone: 518-322-4976
Contact_Electronic_Mail_Address: Tim.Ruhren@its.ny.gov
Hours_of_Service: 9am -4:30pm Eastern time
Data_Set_Credit:
NYS ITS GIS Progam Office
Security_Information:
Native_Data_Set_Environment:
Microsoft Windows 7 Professional Service Pack 1; ESRI ArcCatalog 10.3
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Data_Quality_Information:
Logical_Consistency_Report:
The New York State Office of Information Technology Services makes no claims to the accuracy of the information in this file. THE GIS DATA IS PROVIDED AS IS AND WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED, AS TO THEIR PERFORMANCE, MERCHANTABILITY, OR FITNESS FOR ANY PARTICULAR PURPOSE. NYS ITS does not represent or warrant that the GIS data is error-free, complete, current, or accurate. The file naming convention was supplied by New York State. When the ortho tiles were created the file names were restricted to a numeric value representing the lower left corner of the ortho tile. These tiles were then all renamed using a batch script so that they reflected the N.Y. state standard (i.e. "l_15510420_06_08200_4bd_2016.tif"). Consistency of file naming was ensured by using a batch process. The file naming convention consists of the first letter for Central, East, West or Long Island for New York State Plane Coordinate Systems (NYSPCS). The following four numeric characters represent the first four characters of the "X" coordinate value for the tile's lower left corner coordinate in NYSPCS and the next four characters represent the first four characters of the "Y" coordinate value for the tile's lower left corner coordinate in NYSPCS. The next two numeric characters represent the tile's Ground Sampling Distance (GSD) value in ft. The following five numeric characters represent the Above Mean Terrain (AMT) nominal height at which the Ultracam X sensor recorded or collected the original imagery for the corresponding area. The next three characters are "4bd" for 4-band ortho-photos. Lastly, the last four numeric digits represent the year in which the particular ortho was created.
Completeness_Report:
The project consisted of 4939 final tiles.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
+/-4 ft. at the 95% confidence level (NSSDA) for 12 inch resolution.
Lineage:
Process_Step:
Process_Description:
The Digital Natural Color aerial imagery was acquired in Spring 2016 using a Microsoft Ultracam Eagle sensor flown at a nominal height of 15000' AMT (Above Mean Terrain). ABGPS data was also collected and processed using POSPac (version 7.3) Mobile Mapping Suite . The Ground Control used to support the 4-band ortho-imagery production was collected by identifying and surveying photo identifiable points (PID), using existing PIDs, and existing aerial targets. The Digital Aerial Triangulation (DAT) was performed, primarily, using softcopy workstations and Vexcel UltraMap coupled with BINGO. Digital Elevation Models (DEM) used for ortho imagery production were supplied by the state and updated as needed using UltraMap mapping software. The images were then ortho-rectified using UltraMap ortho dtm software modules. Color balancing, seamless mosaicking was performed by automatic seam line creation steps, final color balancing and final extractions were also accomplished using this software. A final tile by tile quality control was performed using Adobe PhotoShop software. The imagery product deliverables are GeoTIFF images with embedded header information describing the required projection, pixel size, tile size and other related data and corresponding world files (.tfw). Derivative compressed imagery is also available in JP2000 format.
Process_Date: 20161201
Source_Produced_Citation_Abbreviation:
Aerial Imagery
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Brian Tolley
Contact_Organization: Axis GeoSpatial, LLC
Contact_Position: Quality Manager
Contact_Address:
Address_Type: mailing address
Address:
101 Bay Street, Suite 4
City: Easton
State_or_Province: Maryland
Postal_Code: 21601
Country: USA
Contact_Voice_Telephone: 410-822-1441
Contact_Electronic_Mail_Address: btolley@axisgeospatial.com
Hours_of_Service: 9am - 5pm Eastern Time
Cloud_Cover: <1%
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Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:
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Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.999900
Longitude_of_Central_Meridian: -74.500000
Latitude_of_Projection_Origin: 38.833333
False_Easting: 492125.000000
False_Northing: 0.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.000000
Ordinate_Resolution: 0.000000
Planar_Distance_Units: survey feet
Geodetic_Model:
Horizontal_Datum_Name: NAD83 2011 State Plane New York West US Foot
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222
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Entity_and_Attribute_Information:
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Distribution_Information:
Resource_Description: Downloadable Data
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Metadata_Reference_Information:
Metadata_Date: 20170120
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Tim Ruhren
Contact_Organization: NYS ITS GIS Program Office
Contact_Position: NYS GIS Clearinghouse
Contact_Address:
Address_Type: mailing and physical address
Address:
10B Airline Drive
City: Albany
State_or_Province: New York
Postal_Code: 12235
Country: USA
Contact_Voice_Telephone: 518-242-5061
Contact_Facsimile_Telephone: 518-322-4976
Contact_Electronic_Mail_Address: Tim.Ruhren@its.ny.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
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