2002 USGS True Color Orthophotography

Metadata also available as - [Parseable text] - [XML]

Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Sanborn Colorado LLC
Originator: US Department of the Interior - USGS
Originator: Rhode Island Geographic Information System
Publication_Date: 2004
Title: 2002 USGS True Color Orthophotography
Geospatial_Data_Presentation_Form: remote-sensing image
Other_Citation_Details:
Suggested bibliographic reference: RIGIS, 2015. 2002 USGS True Color Orthophotography. Rhode Island Geographic Information System (RIGIS) Data Distribution System, URL: <http://www.rigis.org>, Environmental Data Center, University of Rhode Island, Kingston, Rhode Island (last date accessed: 9 September 2015).
Online_Linkage: <http://www.rigis.org>
Larger_Work_Citation:
Citation_Information:
Originator: Rhode Island Geographic Information System (RIGIS)
Publication_Date: 1993
Title:
Rhode Island Geographic Information System (RIGIS) Data Distribution System
Online_Linkage: <http://www.rigis.org>
Description:
Abstract:
An orthoimage consists of remotely sensed image data in which the 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 0.3-meter pixel resolution (approximately 1-foot). The design accuracy is estimated not to exceed 3-meter diagonal RMSE (2.12m RMSE in X or Y). Each orthoimage provides imagery for a 1500- by 1500-meter block on the ground. The original projected coordinate system was UTM with a NAD83 datum. The imagery was projected into the Rhode Island State Plane Coordinate System in U.S. Survey feet by RIGIS. The resulting resolution in this coordinate system is approximately 1 foot. There is no image overlap been adjacent files. RIGIS combined the original USGS image tiles into four square tile mosaic images. The naming convention as designated by RIGIS consists of vertical columns from west to east from 1 through 12 and horizontal rows from a through p. Variations in this naming system were necessary for areas around the edges of the total image data set and where null images were present. The northwest portion of the overall data set contains a column 01 for rows a-g. Where image mosaics varied from the intended four tile components the mosiac image name contains an upper case H for horizontal or an upper case V for vertical followed by a single digit number designating the number of tiles included in the resulting image mosaic.
Purpose:
These data have been created as a result of the need for having geospatial data immediately available and easily accessible in order to enhance the capability of Federal, State, and local emergency responders, as well as plan for homeland security efforts.
Supplemental_Information:
RIGIS has compressed the original USGS TIF imagary with commercial (LizardTech Geoexpress MrSid 4.0) software. It will be necessary for users to download plugins, dll files or supporting software from Lizardtech.com or other commercial sites.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20020426
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: 71.7
East_Bounding_Coordinate: 71.2
North_Bounding_Coordinate: 42.1
South_Bounding_Coordinate: 41.5
Keywords:
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: imageryBaseMapsEarthCover
Theme:
Theme_Keyword_Thesaurus: none
Theme_Keyword: 1 foot orthoimage
Theme_Keyword: rectified photograph
Theme_Keyword: rectified image
Theme_Keyword: orthophoto
Theme_Keyword: natural color orthophoto
Theme_Keyword: orthoimage
Theme_Keyword: image map
Place:
Place_Keyword_Thesaurus: none
Place_Keyword: US
Place_Keyword: Northeast
Place_Keyword: New England
Place_Keyword: Rhode Island
Place_Keyword: Providence Urban Area
Access_Constraints:
The original imagery is considered public information when obtained from the USGS in their native TIF file format.
Use_Constraints:
This dataset is provided for reference only. These data were created for informational, planning and guidance use only. They are a general reference, not a legally authoritative source for the location of natural or manmade features. Proper interpretation of these data may requre the assistance of appropriate professional services. The cartographic representations depicted have not been verified by a RI Registered Professional Land Surveyor and are not intended to be used in place of a survey. The producer makes no warranty, express or implied, related to the accuracy, reliability, completeness, or currentness of these data. Data from the USGS is considered public information without constraints on its use. Acknowledgment of the U.S. Geological Survey would be appreciated for products derived from these data. This dataset is provided 'as is.’ The producer(s) of this dataset, contributors to this dataset, the Rhode Island Geographic Information System (RIGIS) consortium, the State of Rhode Island, and the University of Rhode Island do not make any warranties of any kind for this dataset, and are not liable for any loss or damage however and whenever caused by any use of this dataset. Please acknowledge both RIGIS and the primary producer(s) of this dataset in any derived products. Versions of the RIGIS logo suitable for both printed and web-based products are available at <http://www.edc.uri.edu/rigis/logos>.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: University of Rhode Island Environmental Data Center
Contact_Person: Greg Bonynge
Contact_Address:
Address_Type: mailing and physical
Address: 1 Greenhouse Road
City: Kingston
State_or_Province: RI
Postal_Code: 02881
Contact_Voice_Telephone: 401-874-2180
Contact_Electronic_Mail_Address: greg@edc.uri.edu
Contact_Instructions: email preferred
Data_Set_Credit:
US Department of the Interior, United States Geological Survey, Rhode Island Geographic Information System, University of Rhode Island Environmental Data Center, Department of Administration, Statewide Planning Program
Native_Data_Set_Environment:
Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 4; ESRI ArcCatalog 8.3.0.800
Cross_Reference:
Citation_Information:
Originator: Sanborn Colorado LLC
Originator: USGS
Publication_Date: 20020426
Title: USGS High Resolution Orthoimage USNG Providence RI-MA
Geospatial_Data_Presentation_Form: remote-sensing image
Online_Linkage: www.geodata.gov
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
During photographic reproduction of the source photographs, limited analog dodging (radiometric editing) is performed to improve image quality. Analog dodging consists of holding back light from certain areas of the sensitized photographic material to avoid overexposure. The diapositive is inspected to ensure clarity and radiometric uniformity. Diapositive image brightness values are collected with a minimum of image quality manipulation. Image brightness values may deviate from the brightness values of the original images because of image value interpolation during the scanning and rectification processes. Radiometry is verified by visual inspection of the digital orthophoto with the original unrectified image to determine if the digital orthophoto has the same or better image quality as the original unrectified input image. Slight systematic radiometric differences can be detected between adjacent orthoimage files; these are due primarily to differences in source photograph capture dates and sun angles along flight lines when the aerial photographs were taken. These differences can be observed in an image's general lightness or darkness when it is compared to adjacent orthoimage file coverages. Tonal balancing may be performed over a group of images during the mosaicking process which may serve to lighten or darken adjacent images for better color tone matching.
Logical_Consistency_Report:
During photographic reproduction of the source photographs, limited analog dodging (radiometric editing) is performed to improve image quality. Analog dodging consists of holding back light from certain areas of the sensitized photographic material to avoid overexposure. The diapositive is inspected to ensure clarity and radiometric uniformity. Diapositive image brightness values are collected with a minimum of image quality manipulation. Image brightness values may deviate from the brightness values of the original images because of image value interpolation during the scanning and rectification processes. Radiometry is verified by visual inspection of the digital orthophoto with the original unrectified image to determine if the digital orthophoto has the same or better image quality as the original unrectified input image. Slight systematic radiometric differences can be detected between adjacent orthoimage files; these are due primarily to differences in source photograph capture dates and sun angles along flight lines when the aerial photographs were taken. These differences can be observed in an image's general lightness or darkness when it is compared to adjacent orthoimage file coverages. Tonal balancing may be performed over a group of images during the mosaicking process which may serve to lighten or darken adjacent images for better color tone matching.
Completeness_Report: Complete to publication date
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The locations of surveyed ground control points were compared with their locations on the GeoTIFF images upon which each point appeared. The distance between the ground control point and the orthophoto location was used to calculate a project-wide RMSE value in ground units.
Quantitative_Horizontal_Positional_Accuracy_Assessment:
Horizontal_Positional_Accuracy_Value: 1.25
Horizontal_Positional_Accuracy_Explanation:
The location of surveyed ground control points used were compared with their location on the GeoTIFF image upon which each point appeared. The difference in the ground location vs. the orthophoto location was used to calculate a project-wide RMSE value in ground units. The algorithm used to derive the RMSE value was pulled directly from the NSDI specification sheet entitled "Geospatial Positioning Accuracy Standards Part 3: National Standard for Spatial Data Accuracy"
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: USGS
Originator: Sanborn Colorado
Publication_Date: 20020426
Title: USGS High Resolution Orthoimagery 2002 RI-MA
Geospatial_Data_Presentation_Form: remote-sensing image
Online_Linkage: www.geodata.gov/gos
Source_Scale_Denominator: 15000
Type_of_Source_Media: stable-base material
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20020426
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: PVD3-109
Source_Contribution: Source imagery for ortho tile production
Process_Step:
Process_Description:
Ground control was collected in the field to support the accuracy requirements. AeroTriangulation was performed in a softcopy environment. Every exposure was triangulated to meet accuracy requirements. Stereo-compilation was done in either softcopy and/or from diaps to accelerate production. The original USGS DEMs were used as a base, and modified with bridge DTM and additional breaklines where needed to meet the accuracy requirements, or where the terrain had changed. True Ortho DTM (DTM of buildings) were captured only if needed on selected buildings, to meet the building lean requirement in the task order. DTM was then delivered back to the USGS in compliance with the task order. Sanborn used proprietary software called METRO to rectify the scanned images. Rectification was done using cubic convolution resampling. Color balancing was then performed on each exposure. Sanborns software tonally balanced each exposure to alleviate the effects of hotspots, side-to-side shading within an exposure, and tonal differences between flightlines due to dissimilar conditions at the time of capture. Each exposure was then balanced to predefined target values used throughout the project, creating a dataset consistent and uniform in radiometry. Seams between exposures were determined by Sanborns software to use the best exposure based on proximity to nadir and ground angle to the camera. Seams were manually modified only to avoid splitting buildings or to improve feature visibility. Delivery tiles were then extracted from Sanborns seamless imagery database, named to meet the national grid naming convention, and formatted as defined in the task order. Quality control was performed on each tile to ensure no artifacts or anomalies were present in the imagery.
Source_Used_Citation_Abbreviation: PVD
Process_Date: 20040515
Source_Produced_Citation_Abbreviation: UTM -19 ortho tiles in TIF format
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: USGS EROS Data Center
Contact_Position: customer service
Contact_Voice_Telephone: 605 594 6156
Contact_Facsimile_Telephone: 605 594 6589
Contact_Electronic_Mail_Address: custserv@usgs.gov
Process_Step:
Process_Description:
USGS orthophoto images were projected from UTM 19 meters NAD83 to RISPC US Survey feet NAD83 by the Environmental Data Center at the University of Rhode Island
Source_Used_Citation_Abbreviation: UTM-19 in TIF format
Process_Date: 20040515
Source_Produced_Citation_Abbreviation: RISPC in feet
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Roland Duhaime
Contact_Organization: URI/EDC
Contact_Position: Research Assistant
Contact_Voice_Telephone: 401-874-5406
Contact_Facsimile_Telephone: 401-874-4561
Contact_Electronic_Mail_Address: roland@edc.uri.edu
Hours_of_Service: M-F 9-4
Process_Step:
Process_Description:
Individual image tiles in RISPC were mosaiced into four tile structures and compressed at a 25:1 and indexed in a numberic column and alphabetic row sequence by RIGIS at RI Department of Administration Statewide Planning Program to MrSid MG3 file format
Source_Used_Citation_Abbreviation: RISPC feet in TIF format
Process_Date: 20040615
Source_Produced_Citation_Abbreviation: RISPC in MrSid Mosaic
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: John Stachelhaus
Contact_Organization: RI Department of Administration Statewide Planning Program
Contact_Position: RIGIS Coordinator
Contact_Voice_Telephone: 401 222 6483
Contact_Facsimile_Telephone: 401 222 6482
Contact_Electronic_Mail_Address: rigis@admin.ri.gov
Hours_of_Service: M-F 8-4
Process_Step:
Process_Description: Metadata reviewed and updated as necessary.
Process_Date: 20100201
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: University of Rhode Island Environmental Data Center
Contact_Person: Greg Bonynge
Contact_Address:
Address_Type: mailing and physical
Address: 1 Greenhouse Road
City: Kingston
State_or_Province: RI
Postal_Code: 02881
Contact_Voice_Telephone: 401-874-2180
Contact_Electronic_Mail_Address: greg@edc.uri.edu
Contact_Instructions: email preferred
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:
Raster_Object_Type: Pixel
Row_Count: 10000
Column_Count: 10000
Vertical_Count: 1
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: row and column
Coordinate_Representation:
Abscissa_Resolution: 0.984252
Ordinate_Resolution: 0.984252
Planar_Distance_Units: survey feet
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.00
Denominator_of_Flattening_Ratio: 298.25722210088
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: Band_1
Attribute:
Attribute_Label: ObjectID
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label: Value
Attribute:
Attribute_Label: Count
Detailed_Description:
Entity_Type:
Entity_Type_Label: Band_2
Attribute:
Attribute_Label: ObjectID
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label: Value
Attribute:
Attribute_Label: Count
Detailed_Description:
Entity_Type:
Entity_Type_Label: Band_3
Attribute:
Attribute_Label: ObjectID
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label: Value
Attribute:
Attribute_Label: Count
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: University of Rhode Island Environmental Data Center
Contact_Person: Erica Tefft
Contact_Address:
Address_Type: mailing and physical
Address: 1 Greenhouse Road
City: Kingston
State_or_Province: RI
Postal_Code: 02881
Contact_Voice_Telephone: 401-874-5054
Contact_Electronic_Mail_Address: erica@edc.uri.edu
Contact_Instructions: email preferred
Distribution_Liability:
This dataset is provided 'as is.' The producer(s) of this dataset, contributors to this dataset, the Rhode Island Geographic Information System (RIGIS) consortium, the State of Rhode Island, and the University of Rhode Island do not make any warranties of any kind for this dataset, and are not liable for any loss or damage however and whenever caused by any use of this dataset.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: Esri shapefile
File_Decompression_Technique: ZIP
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: <http://www.rigis.org>
Fees:
No fee for downloading directly from the RIGIS Data Distribution System located at <http://www.rigis.org>.
Metadata_Reference_Information:
Metadata_Date: 20040629
Metadata_Review_Date: 20150909
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: RI Department of Administration - RIGIS
Contact_Person: John Stachelhaus
Contact_Position: RIGIS Coordinator
Contact_Address:
Address_Type: mailing and physical address
Address: RI Department of Administration
Address: One Capitol Hill - RIGIS
City: Providence
State_or_Province: RI
Postal_Code: 02908-5872
Country: US
Contact_Voice_Telephone: 401 222-6483
Contact_Facsimile_Telephone: 401-222-6482
Contact_Electronic_Mail_Address: rigis@admin.ri.gov
Hours_of_Service: M-F 8-4
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Extensions:
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile
Generated by mp version 2.9.22 on Wed Sep 09 09:58:44 2015