2013 Half Foot Color Orthoimagery East Zone
This metadata is edited and generalized for NYS Orthos Online. For original metadata on a county basis, see http://gis.ny.gov/gateway/mg/metadata.cfm
Identification_Information:
Citation:
Citation_Information:
Originator:Sai Pinnepalli, IIC Technologies, Inc, Manager, GIS Services
Publication_Date:20130404
Title:
Westchester County High Resolution Orthoimage 2013
Geospatial_Data_Presentation_Form:document
Description:
Abstract:
An orthoimage is remotely sensed image data in which displacement of features in the image caused by terrain relief and sensor orientation have been mathematically removed. Orthoimagery combines the image characteristics of a photograph with the geometric qualities of a map. For this dataset, the natural color orthoimages were produced at 0.5 feet (6 ") pixel resolution. The design accuracy is estimated to meet NMAS standards. Each orthoimage provides imagery for a 2,500 by 2,500 feet block on the ground. The projected coordinate system is New York State Plane with a NAD83 datum. There is no image overlap been adjacent files. The ortho image filenames were derived from the northwest corner of each ortho tile using the first three digits of the northing and easting coordinates referenced to the tile grid standadized by Westchester County GIS.
Purpose:
This dataset, photogrammetrically processed was produced from aerial imagery collected in April 2013 using UltraCAM Eagle camera and covers the entire area of Westchester County,NY.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date:20130404
Currentness_Reference:
The geographic extents of this dataset includes entire Westchester County, NY with 200 ft buffer
Status:
Progress:Complete
Maintenance_and_Update_Frequency:As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate:-73.992398
East_Bounding_Coordinate:-73.478471
North_Bounding_Coordinate:41.371617
South_Bounding_Coordinate:40.867355
Keywords:
Theme:
Theme_Keyword_Thesaurus:ISO 19115 Topic Categories
Theme_Keyword:boundaries
Theme_Keyword:imageryBaseMapsEarthCover
Theme_Keyword:planningCadastre
Theme_Keyword:transportation
Theme:
Theme_Keyword_Thesaurus:None
Theme_Keyword:image map
Theme_Keyword:rectified photograph
Theme_Keyword:orthoimage
Theme_Keyword:rectified image
Theme_Keyword:Imagery/Base Maps/Earth Cover
Theme_Keyword:orthophoto
Theme_Keyword:natural color orthophoto
Access_Constraints:None
Use_Constraints:
None
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:Westchester County
Contact_Person:Westchester County GIS
Contact_Address:
Address_Type:mailing and physical
Address:
148 Martine Avenue, Room 214
City:White Plains
State_or_Province:NY
Postal_Code:10601
Country:US
Contact_Voice_Telephone:914-995-5605
Contact_Facsimile_Telephone: 914-813-4116
Contact_Electronic_Mail_Address:GISData@westchestergov.com
Hours_of_Service:Monday - Friday; 8:30 am to 4:30 pm; closed on holidays
Data_Set_Credit:
Westchester County GIS.
Native_Data_Set_Environment:
Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.2.1.3497
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method:Vector
Raster_Object_Information:
Raster_Object_Type:Pixel
Row_Count:22813
Column_Count:17500
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name:NAD83 New York East ftUS
Transverse_Mercator:
NAD83 New York East ftUS
Scale_Factor_at_Central_Meridian:0.9999
Longitude_of_Central_Meridian:-74.5
Latitude_of_Projection_Origin:38.83333333333334
False_Easting:492125.0
False_Northing:0.0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method:coordinate pair
Coordinate_Representation:
Abscissa_Resolution:0.000000007285705372339636
Ordinate_Resolution:0.000000007285705372339636
Planar_Distance_Units:foot_us
Geodetic_Model:
Horizontal_Datum_Name:D North American 1983
Ellipsoid_Name:GRS 1980
Semi-major_Axis:6378137.0
Denominator_of_Flattening_Ratio:298.257222101