VTORTHO_0_5M_CLRIR_2012

Metadata also available as

Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Fugro EarthData, Inc.
Publication_Date: 20120525
Title: VTORTHO_0_5M_CLRIR_2012
Geospatial_Data_Presentation_Form: remote-sensing image
Publication_Information:
Publication_Place: Waterbury VT 05676
Publisher: VT Center for Geographic Information
Edition: 2012A
Other_Citation_Details: Tile Structure - ORTHO
Description:
Abstract:
This metadata record describes the acquisition and production of natural color and color infrared digital ground orthoimagery covering a portion of Vermont State. The digital orthophotography and color infrared digital orthos are composed of 24 bit natural color digital orthos at a scale of 1 to 5,000 with a 0.5 meter pixel resolution.
Purpose:
This orthoimagery has been acquired by the State of Vermont for use in the development of a geographic information system (GIS). GIS is a tool that is used to promote effective environmental management of the facility as well as inventory and management of the facility assets and resources.The acquisition, production, and delivery of natural color digital orthoimagery covering the project area was a coordinated effort between Fugro EarthData Inc. and the Vermont Center for Geographic Information, Inc."
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20120525
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: Irregular
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -73.450514
East_Bounding_Coordinate: -72.158292
North_Bounding_Coordinate: +43.796227
South_Bounding_Coordinate: +43.252289
Keywords:
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: ImageryBaseMapsEarthCover
Theme_Keyword: Imagery
Theme_Keyword: Aerotriangulation
Theme_Keyword: ADS40
Theme_Keyword: Orthoimagery
Theme_Keyword: Aerial Acquisition
Theme_Keyword: EDI Thesaurus
Place:
Place_Keyword_Thesaurus: Geographic Names Information System
Place_Keyword: Vermont
Place_Keyword: USA
Place_Keyword: None
Access_Constraints: None
Use_Constraints:
VCGI and the State of VT make no representations of any kind, including but not limited to the warranties of merchantability or fitness for a particular use, nor are any such warranties to be implied with respect to the data.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: VT Center for Geographic Information
Contact_Address:
Address_Type: Mailing and Physical Address
Address: 1 National Life Dr, Dewey Building, 2nd Floor
City: Montpelier
State_or_Province: VT
Postal_Code: 05620-2001
Country: USA
Contact_Voice_Telephone: (802) 585-0820
Contact_TDD/TTY_Telephone: None
Contact_Facsimile_Telephone:
Contact_Electronic_Mail_Address: vcgi@vermont.gov
Hours_of_Service: 9am - 5pm, M-F
Security_Information:
Security_Classification_System: N/A
Security_Classification: Unclassified
Security_Handling_Description: N/A
Data_Set_Credit: Vermont Imagery Program (VIP)
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
This data has been produced to be fully compliant with the American Society for Photogrammetry and Remote Sensing Accuracy Standards for Class 1 mapping requirements (ASPRSC1) at a scale of 1 to 5,000.
Logical_Consistency_Report:
Compliance with the accuracy standard was ensured by the placement of GPS ground control. The following checks were performed. 1. The ground control and airborne GPS data stream were validated through a fully analytical bundle aerotriangulation adjustment. The residuals of the adjustment met the required standards for accuracy which are 1 part in 10,000 of the flying height for the horizontal position (X and Y) and 1 part in 9,000 or better of the flying height in elevation (Z). 2. The DTM (Digital Terrain Model) data was checked against the project control. The technician visited and confirmed the accuracy of the project mass points during initial compilation. 3. Any topographic data was checked for edge match, consistency of attribution, and cartographic quality through visual inspection. 4. Digital orthophotography was validated through an inspection of edge matching and visual inspection for image quality."
Completeness_Report: 100%
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
This data has been produced to be fully compliant with the American Society for Photogrammetry and Remote Sensing Accuracy Standards for Class 1 mapping requirements at a scale of 1 to 5,000 with a 0.5 meter pixel resolution.
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report: N/A
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: Fugro EarthData, Inc.
Publication_Date: 20120525
Title: 2012 State of Vermont Orthophotography
Geospatial_Data_Presentation_Form: remote-sensing image
Type_of_Source_Media: Aerial Photography
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20120525
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: Aerial Acquisition
Source_Contribution:
The aerial imagery acquisition for Vermont State was flown to support the creation of digital orthophotography with a 0.5 meter pixel resolution. The aerial photographic mission was composed of a total of 4 lifts consisting of 32 North-South oriented flight lines. Photography was obtained at an altitude of 16,047 feet above mean sea level. Aerial photography was collected in conjunction with airborne GPS; the stationary GPS receiver was positioned over a control point located at the airport. All imagery was collected using the Leica ADS40 digital pushbroom sensor."
Source_Scale_Denominator: 5000
Source_Information:
Source_Citation:
Citation_Information:
Originator: Fugro EarthData, Inc.
Publication_Date: 20120525
Title: Report of GPS Survey for Vermont State for photo control
Geospatial_Data_Presentation_Form: model
Source_Scale_Denominator: 5000
Type_of_Source_Media: electronic mail system
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20120525
Ending_Date: 20120525
Source_Currentness_Reference: Ground Condition
Source_Citation_Abbreviation: Ground Control
Source_Contribution:
Vermont Agency of Transportation successfully established ground control for the project area. A total of 24 ground control points were acquired using GPS for both vertical and horizontal coordinate values.
Process_Step:
Process_Description:
EarthData utilized an InfoTerra Pixel Factory workflow for processing the aerotriangulation for the orthoimagery of project area. The airborne GPS data was processed and integrated with the inertial measurement unit (IMU). The resulting imagery and control were imported into the InfoTerra Pixel Factory system for use in the aerotriangulation. The ADS40 imagery was downloaded onto the EarthData server and brought over to the UNIX based InfoTerra Pixel Factory system. The ground control was used in conjunction with the processed airborne global positioning system (ABGPS) results for the aerotriangulation. The ground control points were read in all available imagery and tie points between flight lines were selected. A fully analytical bundle adjustment was run. The properly formatted InfoTerra Pixel Factory results were used for subsequent processing. All final results were output into an AT report which is being delivered with the final orthoimagery.
Source_Used_Citation_Abbreviation: Aerotriangulation
Process_Date: 20120525
Source_Produced_Citation_Abbreviation: Analytical Aerotriangulation
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Fugro EarthData, Inc.
Contact_Person: Bobby Riley
Contact_Address:
Address_Type: mailing and physical address
Address: 7320 Executive Way
City: Frederick
State_or_Province: MD
Postal_Code: 21704
Country: USA
Contact_Voice_Telephone: (301)-948-8550
Contact_Facsimile_Telephone: (301)-963-2064
Contact_Electronic_Mail_Address: briley@fugro.com
Hours_of_Service: Monday to Friday 8:00am to 5:00pm EST
Process_Step:
Process_Description:
InfoTerra Pixel Factory was used in the processing of the DSM for orthorectification of the imagery covering a portion of Vermont state project area. InfoTerra Pixel Factory digital surface modeling is based on an auto correlated pixel-matching system within the InfoTerra Pixel Factory software. The auto correlated digital surface model (DSM) surface represents the initial surface model. The following is the process used. 1.The technician verified that there were no voids, and that the data covered the project limits. 2. The technician runs a macro to automatically filter out non-ground features such as trees, noise, and buildings. 3. The technician checks each tile and manually edits where necessary. 4. The technician interpolates voids left over from feature removal. 5. The resulting digital elevation model (DEM) is used in the rectification of the orthoimagery and the deliverable is provided in ASCII format for each tile.
Source_Used_Citation_Abbreviation: 0
Source_Used_Citation_Abbreviation: 0
Process_Date: 20120525
Source_Produced_Citation_Abbreviation: DSM
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Fugro EarthData, Inc.
Contact_Person: Bobby Riley
Contact_Address:
Address_Type: Mailing and physical address
Address: 7320 Executive Way
City: Frederick
State_or_Province: MD
Postal_Code: 21704
Country: USA
Contact_Voice_Telephone: (301)-948-8550
Contact_Facsimile_Telephone: (301)-963-2064
Contact_Electronic_Mail_Address: briley@fugro.com
Hours_of_Service: Monday to Friday 8:00am to 5:00pm EST
Process_Step:
Process_Description:
The digital orthophotography is comprised of a 24 bit, natural color and color infrared, 0.5 meter pixel resolution ground orthos for the project area. The InfoTerra Pixel Factory was used in the generation of the orthoimagery covering all project tiles. After the rectification process was run using the processed DEM surface, quicklook (reduced resolution rectification) ortho for all flight lines were created. The "Quicklook" orthos were radiometrically balanced using FEDI proprietary software. The radiometrically balanced imagery were then re-imported into the Pixel Factory and the histogram from the Quicklook was applied to the full resolution imagery. Quicklook orthos were also used to generate the automatic mosaic lines, which were placed to mosaic the full resolution ortho of the ADS40 imagery strips. This created a mosaic of the 2012 project area. Additional mosaic lines were then placed between the 2012 mosaic and the 2011 mosaic. These mosaic lines are called tie lines. This process joins the other project areas flown on previous years with the current project area. An initial QA/QC was performed by the technician to ensure that the mosaic lines were appropriately placed and that there was appropriate imagery coverage. The final imagery data set is removed from the InfoTerra environment in a process called "packaging" where the individual tiles are created. All data processing in the InfoTerra system is performed in UTM meters; it is during "packaging" that final datum and projection are defined. The created tiles are reviewed to ensure the output was successful and ground control points are measured and verified for accuracy. QA/QC was performed on each tile looking for anomalies, smears and other indications of problems within the digital Orthophoto creation process, and interactive radiometric adjustments were applied where needed. Additional global radiometric adjustments were applied to the completed orthos in Adobe Photoshop to enhance the color and/or contrast as needed. The orthos were clipped to a project boundary consisting of 4,000 meter by 4,000 meter tile layout. The orthos were produced as GEOTIFF with a .prj file using GDAL software. A Fugro EarthData proprietary software was used to generate the specified header information in the associated TFW file. All data was delivered on firewire."
Source_Used_Citation_Abbreviation: Digital Orthophotos
Process_Date: 20120525
Source_Produced_Citation_Abbreviation: Digital Orthos
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Fugro EarthData, Inc.
Contact_Person: Bobby Riley
Contact_Address:
Address_Type: Mailing and physical address
Address: 7320 Executive Way
City: Frederick
State_or_Province: MD
Postal_Code: 21704
Country: USA
Contact_Voice_Telephone: (301)-948-8550
Contact_Facsimile_Telephone: (301)-963-2064
Contact_Electronic_Mail_Address: briley@fugro.com
Hours_of_Service: Monday to Friday 8:00am to 5:00pm EST
Process_Step:
Process_Description:
Fugro delivered data to VCGI. VCGI loaded data into VCGI image library.
Process_Date: 20130102
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Ivan Brown
Contact_Organization: VCGI
Contact_Position: GIS Database Administrator
Cloud_Cover: 0
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:
Raster_Object_Type: Pixel
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: State Plane Coordinate System 1983
State_Plane_Coordinate_System:
SPCS_Zone_Identifier: FIPS 4400
Lambert_Conformal_Conic:
Standard_Parallel: 33.3
Standard_Parallel: 34.766667
Longitude_of_Central_Meridian: -72.5
Latitude_of_Projection_Origin: 42.5
False_Easting: 500000
False_Northing: 0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.5
Ordinate_Resolution: 0.5
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137
Denominator_of_Flattening_Ratio: 298.2572221
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: VT Center for Geographic Information
Contact_Address:
Address_Type: Mailing and Physical Address
Address: 1 National Life Dr, Dewey Building, 2nd Floor
City: Montpelier
State_or_Province: VT
Postal_Code: 05620-2001
Country: USA
Contact_Voice_Telephone: (802) 585-0820
Contact_TDD/TTY_Telephone: None
Contact_Facsimile_Telephone:
Contact_Electronic_Mail_Address: vcgi@vermont.gov
Hours_of_Service: 9am - 5pm, M-F
Distribution_Liability:
VCGI and the State of VT make no representations of any kind, including but not limited to the warranties of merchantability or fitness for a particular use, nor are any such warranties to be implied with respect to the data.
Resource_Description: VTORTHO_0_5M_CLRIR_2012
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: JPEG2000 and GeoTIFF
Format_Specification: JPEG2000 (18x compression) and GeoTIFF
Format_Information_Content: geospatial data
File_Decompression_Technique: Image viewer
Format_Version_Number: Unknown
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
https://maps.vcgi.vermont.gov/gisdata/vcgi/imagery/VTORTHO/0_5M/CLRIR/2012/COMP/
Access_Instructions:
Download compressed (JPEG2000) from web site. Uncompressed GeoTIFF available on offline media.
Offline_Option:
Offline_Media: USB drive
Fees:
No charge when downloading from the internet, and when no custom processing is required.
Ordering_Instructions: Send an email describing data request to vcgi@vermont.gov
Turnaround: About 5 days.
Custom_Order_Process: Send an email describing data request to vcgi@vermont.gov
Technical_Prerequisites: GIS Software
Available_Time_Period:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20120525
Metadata_Reference_Information:
Metadata_Date: 20120525
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Person: Bobby Riley
Contact_Organization: Fugro EarthData, Inc.
Contact_Address:
Address_Type: Mailing and physical address
Address: 7320 Executive Way
City: Frederick
State_or_Province: MD
Postal_Code: 21704
Country: USA
Contact_Voice_Telephone: (301)-948-8550
Contact_Facsimile_Telephone: (301)-963-2064
Contact_Electronic_Mail_Address: briley@fugro.com
Hours_of_Service: Monday to Friday 8:00am to 5:00pm EST
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Use_Constraints: None
Generated by mp version 2.9.22 on Thu Aug 25 20:52:24 2022