Richmond County Selective True Ortho 4 bd 6in

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: NYS Office of Information Technology Services, GIS Program Office
Publication_Date: 20141103
Title:
Richmond County Selective True Ortho 4 bd 6in
Geospatial_Data_Presentation_Form: raster digital data
Series_Information:
Series_Name: NYS Digital Ortho-imagery Program (NYSDOP)
Issue_Identification: 2014 imagery in Richmond County
Publication_Information:
Publication_Place: Albany, New York
Publisher: NYS Office of Information Technology Services, GIS Program Office
Description:
Abstract:
These files contain 2014 digital Selective True Ortho-imagery of Richmond County,
New York. Image pixel size is 6" GSD. Image type is 4-band, RGB &
NIR. Image horizontal accuracy is within 2' at the 95% confidence
level (NSSDA). Each file contains an image covering 2500 ft. by 2500
ft. on the ground.
Purpose:
This digital Selective True 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:
Single_Date/Time:
Calendar_Date: 20140401
Currentness_Reference:
ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: Irregular
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: 40.4888531
East_Bounding_Coordinate: 40.7019041
North_Bounding_Coordinate: -74.0243442
South_Bounding_Coordinate: -74.2759218
Keywords:
Theme:
Theme_Keyword_Thesaurus: none
Theme_Keyword: Digital Selective True Ortho-imagery
Place:
Place_Keyword_Thesaurus: none
Place_Keyword: Richmond 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:
State Office Campus Building 7A, 4th Floor, 1220 Washington Avenue
City: Albany
State_or_Province: New York
Postal_Code: 12242
Country: USA
Contact_Voice_Telephone: 518-242-5029
Contact_Facsimile_Telephone: 518-322-4976
Contact_Electronic_Mail_Address: tim.ruhren@its.ny.gov
Hours_of_Service: 9am -4:30pm Easten time
Data_Set_Credit:
NYS ITS GIS Progam Office
Security_Information:
Native_Data_Set_Environment:
Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; ESRI ArcCatalog 10.2
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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.
Completeness_Report:
The project consisted of 460 final tiles.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
+/-2 ft. at the 95% confidence level (NSSDA) for 6 inch resolution.
Lineage:
Process_Step:
Process_Description:
This dataset contains selective true orthoimagery of Richmond
County, New York as part of the contract to provide new natural
color digital aerial imagery with airborne GPS-IMU control and
ground surveyed control to develop and support 4 band (RGBIR) 8
bit 6 inch pixel resolution for selective areas within the New
York City's five bouroughs. Imagery acquisition and flight lines
were planned and acquired for the NYC STO area based upon the
project specifications of selective true orthos using a diagonal
orientation with a forward overlap of 80 percent and a flight line
sidelap of 60 percent. The area was planned and flown with
Keystone's Aerial Survey's Ultracam Falcon Prime digital mapping camera
UCFP-50616147 equipped with flight navigation
systems and airborne GPS and inertial measurement units flown at
an approximate altitude of 8200' above mean ground elevation. An
average image footprint of 17310' x 11310' size image was
captured; thereby capturing an average image footprint of 8655'
wide by 5655' inline for a six inch pixel resolution. A total of
114 flight lines and 8156 exposures were captured for the NYC STO
area region. Imagery was captured between March 26th and April
5th, 2016, with a sun angle exceeding 30 degrees. For the Aerotriangulation 
Automatic Point Measurement (APM)
was run on the images to measure terrain points to tie the images
together. The imagery was then used in the AT process in UltraMap 
where tie point measurement was performed and
independent ground control points and airborne GPS were introduced
to further refine the data. Final EO data was derived using BINGO AT software using the
Microsoft UltraMap mapping platform. 
The UltraMap Ortho module produced a Digital Surface Model (DSM)
at a .5' resolution of the entire NYC STO area. The DSM data was then 
applied in the orthorectification process to produce 4-band 
RGB-IR digital orthoimages free of distortion and lean on the selective 
true buildings. All orthorectified images were reviewed for consistency with project
requirements before the mosaicking and tiling process. Bridge
distortions and other errors were corrected at this stage. As part
of the mosaicking and tiling process in UltraMap, all images 
were adjusted for color and radiometric differences for the entire image dataset. 
The individual tiles produced were then inspected in a
final QA/QC process for overall image quality with all undesirable
artifacts and errors corrected before delivery. The end product
for Richmond County was 491 seamless 8-bit 4-band RGB-IR image
tiles, 2500 by 2500 feet wide in GeoTIFF/TFW format. Imagery was
also delivered in JP2/J2W format at a 10:1 compression ratio with
ESRI AUX and MapInfo TAB files.
Process_Date: 201608
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 and physical address
Address:
101 Bay St
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:
Map_Projection_Name: Transverse Mercator
Transverse_Mercator:
Transverse Mercator
Scale_Factor_at_Central_Meridian: 0.999375
Longitude_of_Central_Meridian: -76.583333333333333333
Latitude_of_Projection_Origin: 40.0
False_Easting: 249999.9998983998
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: D_North_American_1983
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
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Transfer_Size: 0.004
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Metadata_Reference_Information:
Metadata_Date: 20141103
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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