USGS High Resolution Orthoimage for the Boise, ID (Ada County) Urban Area.

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: COMPASS (Community Planning Association)

Publication_Date: Unpublished material

Title:

USGS High Resolution Orthoimage for the Boise, ID (Ada County) Urban Area.

Geospatial_Data_Presentation_Form: remote sensing image

Description:

Abstract:

This data set consists of 0.3-meter pixel resolution (approximately 1-foot), natural color orthoimages covering the Boise, ID urban area footprint. This area includes most of northern Ada County with small portions of Boise County and Canyon County. 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. The design accuracy is estimated not to exceed 3-meter diagonal RMSE (2.12m RMSE in X or Y).

Purpose:

This data depicts geographic features on the surface of the earth. It was created primarily as a visual aid for urban and county planning. It also provides easily accessible geospatial data which is readily available to enhance the capability of Federal, State, and local emergency responders, as well as plan for homeland security efforts.

Time_Period_of_Content:

Time_Period_Information:

Multiple_Dates/Times:

Single_Date/Time:

Calendar_Date: 20030408

Single_Date/Time:

Calendar_Date: 20030419

Currentness_Reference: ground condition

Status:

Progress: complete

Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -116.50

East_Bounding_Coordinate: -116.09

North_Bounding_Coordinate: 43.75

South_Bounding_Coordinate: 43.37

Keywords:

Theme:

Theme_Keyword_Thesaurus: None

Theme_Keyword: 0.3 meter orthoimage

Theme_Keyword: rectified photograph

Theme_Keyword: rectified image

Theme_Keyword: orthophoto

Theme_Keyword: natural color orthophoto

Theme_Keyword: orthoimage

Theme_Keyword: aerial photo

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Categories

Theme_Keyword: imageryBaseMapsEarthCover

Place:

Place_Keyword_Thesaurus:

U.S. Department of Commerce, 1995, Countries, Dependencies, Areas of Special Sovereignty, and Their Principal Administrative Divisions (Federal Information Processing Standard (FIPS) 10-4): Washington, D.C., National Institute of Standards and Technology.

Place_Keyword: US

Place:

Place_Keyword_Thesaurus:

U.S. Department of Commerce, 1987, Codes for the Identification of the States, the District of Columbia and the outlying areas of the United States, and associated areas (Federal Information Processing Standard (FIPS) 5-2): Washington, D.C., National Institute of Standards and Technology.

Place_Keyword: ID

Place:

Place_Keyword_Thesaurus: None

Place_Keyword: Boise, ID

Place_Keyword: Ada County

Access_Constraints: None

Use_Constraints:

None. However, users should be aware that temporal changes may have occurred since this data set was collected and that some parts of this data may no longer represent actual surface conditions. Users should not use this data for critical applications without a full awareness of it's limitations.

Native_Data_Set_Environment:

Digital images rectified on Windows based computers using Socet Set 4.4.1 software. Images cleaned in Corel Photopaint 8; color balanced in Adobe Photoshop 7. Images translated from Ada County coordinate system to UTM using Blue Marble Geographic Transformer 5.

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

Original orthophotos were designed to meet standards for 0.5' pixel images. Conversion of images to 0.3m pixel resulted in no noticeable loss of accuracy when images were checked against vector data. No accuracy testing was performed.

Logical_Consistency_Report:

Aerial photography from which digital imagery was derived was obtained on 2 different days. Otherwise all imagery was processed using the same equipment and methodology. All GeoTIFF tagged data and image file sizes are validated using commercial GIS software to ensure proper loading before being archived. This validation procedure ensures correct physical format and field values for tagged elements.

Completeness_Report:

Digital imagery covers two separate areas: the main area around Boise and environs; and a smaller area covering 9 sections south of Boise. The original orthophoto tiles were designed to approximate the PLSS layout of Ada County. For this data set the imagery was re-tiled to fit the National Grid System. Tiles around the exterior of the project were incomplete since there was no imagery to cover them, nor vector data for rectification. The images are cloud free.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report: Imagery designed to meet standards.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: Bergman Photographic Services

Publication_Date: unpublished material

Title: 2003 Ada County Aerial Photography - True Color

Source_Scale_Denominator: 10,080

Type_of_Source_Media: stable-base material

Source_Time_Period_of_Content:

Time_Period_Information:

Multiple_Dates/Times:

Single_Date/Time:

Calendar_Date: 20030408

Single_Date/Time:

Calendar_Date: 20030419

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: PHOTO

Source_Contribution: Provided the source imagery for orthoimage production.

Source_Information:

Source_Citation:

Citation_Information:

Originator: Axis Geospatial

Publication_Date: Unpublished material

Title: 2003 Ada County digital imagery

Geospatial_Data_Presentation_Form: Remote sensing image

Source_Scale_Denominator: 10,080

Type_of_Source_Media: stable-base material

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: unknown

Source_Currentness_Reference: date of photography

Source_Citation_Abbreviation: Image

Source_Contribution: Converted aerial photography film to digital images.

Source_Information:

Source_Citation:

Citation_Information:

Originator: 3Di West / GeoTerra Mapping Group (comp.)

Publication_Date: Unpublished material

Title: 2000 Ada County vector data & orthophotos

Geospatial_Data_Presentation_Form: Map

Type_of_Source_Media: CD-ROM

Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 200004

Ending_Date: 200006

Source_Currentness_Reference: Date of photography

Source_Citation_Abbreviation: Ada vector

Source_Contribution:

Vector data used for rectification of orthophotos. Vector data and controlled photography used to geo-referenceimagery.

Process_Step:

Process_Description:

Rectification and generation of orthophotos. Digitally scanned images were ortho-rectified to the 2000 Ada County vector data using Socet Set v.4.4.1 at a 0.5 'pixel resolution.

QC of imagery. Orthophotos were edge-checked to ensure image alignment across tiles using ArcView 3.3. Orthos were checked for correct image alignment with vector data using VROne 2.0. Unwanted artifacts created during the scanning and rectification processes (such as dust particles, scratches, hair etc.) were removed using Corel Photopaint 8 and 11. Images were color balanced using Adobe PhotoShop 7.

Conversion of orthos to UTM. The cleaned, balanced orthos were mosaiced together in groups of 4 using SocetSet 4.4.1. The mosaiced orthos were transformed from the Ada County coordinate system to UTM using Blue Marble Geographic Transformer 5. The transformed mosaics were then recut to the correct size tiles using Socet Set 4.4.1. QC was then performed on each new tile.

Compression of images. The final UTM orthophoto tiles were compressed at a 20:1 ratio using MrSIDWorkstation 1.4.

Original data set provided to COMPASS (CommunityPlanning Association) in the Ada Countycoordinate system.

Metadata imported.

Process_Date: Unknown

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Raster

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Grid_Coordinate_System:

Grid_Coordinate_System_Name: Universal Transverse Mercator

Universal_Transverse_Mercator:

UTM_Zone_Number: 11

Transverse_Mercator:

Scale_Factor_at_Central_Meridian: 0.9996

Longitude_of_Central_Meridian: -117.000

Latitude_of_Projection_Origin: 0.0

False_Easting: 500000

False_Northing: 0

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: row and column

Coordinate_Representation:

Abscissa_Resolution: 0.3

Ordinate_Resolution: 0.3

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

Entity_and_Attribute_Information:

Overview_Description:

Entity_and_Attribute_Overview:

Natural color orthoimagery is organized in three color bands or channels which represent the red, green, and blue (RGB) portions of the spectrum. Each image pixel is assigned a triplet of numeric values, one for each color band. Numeric values range from 0 to 255. Areas where data is incomplete due to lack of full image coverage are represented with the numeric value of 0.

Entity_and_Attribute_Detail_Citation:

U.S. Department of the Interior, U.S. Geological Survey, 1996, Standards for Digital Orthophotos: Reston, VA.

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey

Contact_Address:

Address_Type: mailing and physical address

Address: Customer Services

Address: U.S. Geological Survey

Address: EROS Data Center

Address: 47914 252nd Street

City: Sioux Falls

State_or_Province: SD

Postal_Code: 57198-0001

Country: US

Contact_Voice_Telephone: 1-800-252-4547

Contact_TDD/TTY_Telephone: 1-605-594-6933

Contact_Facsimile_Telephone: 1-605-594-6589

Contact_Electronic_Mail_Address: custserv@usgs.gov

Hours_of_Service: Monday through Friday 8:00 AM to 4:00 PM (Central Time)

Contact_Instructions:

The above is the contact information for EROS Data Center in Sioux Falls, SD. This is the digital data storage and distribution center for the USGS.

Resource_Description: Downloadable Data

Distribution_Liability:

Although these data have been processed successfully on a computer system at the USGS, no warranty expressed or implied is made by the USGS regarding the use of the data on any other system, nor does the act of distribution constitute any such warranty. Data may have been compiled from various outside sources. Spatial information may not meet National Map Accuracy Standards. This information may be updated without notification. The USGS shall not be liable for any activity involving these data, installation, fitness of the data for a particular purpose, its use, or analyses results.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name: <http://seamless.usgs.gov/>

Access_Instructions:

The URL <http://seamless.usgs.gov> provides a map interface that allows for data downloads within a customer defined area of interest. Zoom tools are available that can be used to investigate areas of interest on the map interface. The download tool allows the customer to capture layers from the map, utilizing the Seamless Data Distribution System process for downloading. A request summary page is then generated with the download layers listed. To select different layers to download, modify the request summary. By clicking the "download" button on the summary page, a zipped file will be generated that can be saved on the customer's computer. The file can then be unzipped and imported into various user software applications.

Fees: None

Metadata_Reference_Information:

Metadata_Date: 20050203

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey

Contact_Address:

Address_Type: mailing and physical address

Address: Customer Services

Address: U.S. Geological Survey

Address: EROS Data Center

Address: 47914 252nd Street

City: Sioux Falls

State_or_Province: SD

Postal_Code: 57198-0001

Country: US

Contact_Voice_Telephone: 1-800-252-4547

Contact_TDD/TTY_Telephone: 1-605-594-6933

Contact_Facsimile_Telephone: 1-605-594-6589

Contact_Electronic_Mail_Address: custserv@usgs.gov

Hours_of_Service: Monday through Friday 8:00 AM to 4:00 PM (Central Time)

Contact_Instructions:

The above is the contact information for EROS Data Center in Sioux Falls, SD. This is the digital data storage and distribution center for the USGS. Metadata information can also be obtained through online services using The National Map Viewer, at <http://nationalmap.usgs.gov> or EarthExplorer, at <http://earthexplorer.usgs.gov>.

Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998