Metadata for Yellowstone River Corridor Orthophotos, 2007

Identification Information
Data Quality Information
Spatial Data Organization Information
Spatial Reference Information
Entity and Attribute Information
Distribution Information
Metadata Reference Information

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Identification Information:

Citation:

Originator: Woolpert, Inc.
Publication date: 03/26/2009
Title: Yellowstone River Corridor Orthophotos, 2007
Online linkage: http://geoinfo.montanastatelibrary.org/data/aerialphotos/

Abstract:

The data set consists of a series of natural color 0.03 meters (approximately 1 foot) digital orthoimages covering part of the Yellowstone River from Sweet Grass County, Montana to the Missouri River confluence in McKenzie County, North Dakota. This imagery will be used as the base for multiple purposes and analyses by the partnership of the YRCDC and the Army Corp of Engineers, Omaha District. The high resolution, 0.3 meter (approximately 1 foot) data will also be used as base map for monitoring long-term change.

These images cover the course of the Yellowstone River through Sweet Grass, Treasure, Rosebud, Custer, Prairie, and Richland Counties, Montana, and McKenzie and Williams Counties in North Dakota. They were created by Woolpert to tie in with images collected in 2004 that cover the river in Stillwater, Yellowstone, and Dawson Counties, Montana.

Purpose:

These data were created as part of a joint Yellowstone River Conservation District Council and U.S. Army Corps of Engineers, Omaha District cumulative impacts study of the Yellowstone River channel and floodplain. The multi-agency interdisciplinary planning study extends 477 river miles from Sweet Grass County, Montana to the Missouri River confluence in McKenzie County, North Dakota.

The datasets were created to operate within the ArcGIS software environment. In addition, they are intended to serve as a base for the project GIS and also to support a wide variety of analyses including planimetric data extraction (e.g., infrastructure, riverine geomorphology, land cover, habitat and vegetation), and to monitor long-term river channel changes.

Time period of content:

Beginning date: 10/15/2007
Ending date: 11/02/2007
Currentness reference: ground condition

Status:

Progress: Complete
Maintenance and update frequency: As needed

Access constraints: None

Use constraints:

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 full awareness of its limitations.

The Montana State Library provides this product/service for informational purposes only. The Library did not produce it for, nor is it suitable for legal, engineering, or surveying purposes. Consumers of this information should review or consult the primary data and information sources to ascertain the viability of the information for their purposes. The Library provides these data in good faith but does not represent or warrant its accuracy, adequacy, or completeness. In no event shall the Library be liable for any incorrect results or analysis; any direct, indirect, special, or consequential damages to any party; or any lost profits arising out of or in connection with the use or the inability to use the data or the services provided. The Library makes these data and services available as a convenience to the public, and for no other purpose. The Library reserves the right to change or revise published data and/or services at any time.

Point of contact:

Jim Robinson
MT DNRC, Water Resources
Water Planner
PO Box 201601
Helena, Montana 59620-1601
Telephone: 406-444-4247
E-Mail: jrobinson@mt.gov

Data Quality Information:

Attribute accuracy report:

Image color values may deviate from the original imagery due to image value interpolation during the rectification and color balancing process. Color values are verified by visual inspection of the orthoimage.

Logical consistency report:

All digital orthoimagery is visually inspected for completeness to ensure that no gaps, hard seam lines, or shifting has occurred. All the imagery is clipped into final delivery format and visually checked for color differences. All imagery is cloud free and was flown in a leaf-off/no-snow timeframe.

Horizontal Positional Accuracy Report:

Horizontal accuracy meets or exceeds a 4.5 foot horizontal accuracy at 95 percent confidence level using RMSE(r) x 1.7308 as defined by the FGDC Geospatial Positioning Accuracy Standards

Quantitative horizontal positional accuracy assessment:

Horizontal positional accuracy value: NSSDA
Horizontal positional accuracy explanation:: The National Standard for Spatial Data Accuracy (NSSDA) implements a statistical and testing methodology for estimating the positional accuracy of points on maps and in digital geospatial data, with respect to georeferenced ground positions of higher accuracy.

Quantitative vertical positional accuracy assessment:

Lineage:

Source information:

Originator: Eisenbraun and Associates
Publication date: 03/14/2008
Title: Digital Orthophotography
Type of source media: digital files
Source contribution:: Horizontal and vertical controls were used to establish positions and elevations for reference and correlation purposes and as input to the aerotriangulation process. Control consists of both Airbourne GPS to provide camera station positions and photoidentifiable surveyed ground control for ground reference.
Calendar date: 200803141

Process step:

The digital orthophotography was obtained with a ADS40 digital sensor. The ortho imagery was rectified to a LiDAR surface using aerotriangulation and Cubic Convolution methodology. The orthoimagery was mosiced and radiometrically balanced to ensure tonal consistency. The final pixel resolution is 0.03 meters and meets all NSSDA accuracy requirements as stated in the positional accuracy section of the metadata report.

Process date: 03/13/2008

Process contact:

Woolpert, Inc
116 Inverness Drive East, Suite 105
Englewood, CO 80112

Spatial Data Organization Information:

Raster object information:

Raster object type: Pixel
Vertical count: 1

Spatial Reference Information:

Horizontal coordinate system definition:

Grid coordinate system name: State Plane Coordinate System

SPCS zone identifier: 2500

Lambert conformal conic:

Standard parallel: 45.000000
Standard parallel: 49.000000
Longitude of central meridian: -109.500000
Latitude of projection origin: 44.250000
False easting: 600000.000000
False northing: 0.000000

Planar distance units: meters

Geodetic model:

Horizontal datum name: North American Datum of 1983
Ellipsoid name: Geodetic Reference System 80
Semi-major axis: 6378137.000000
Denominator of flattening ratio: 298.257222

Entity and Attribute Information:

Distribution Information:

Distributor:

Montana State Library
PO Box 201800
Helena, MT 59620-1800
Telephone: 406-444-5354
TDD/TTY telephone: 406-444-4799
Fax: 406-444-0266
E-Mail: geoinfo@mt.gov

Resource description: Downloadable Data

Distribution liability:

The Montana State Library provides this product/service for informational purposes only. The Library did not produce it for, nor is it suitable for legal, engineering, or surveying purposes. Consumers of this information should review or consult the primary data and information sources to ascertain the viability of the information for their purposes. The Library provides these data in good faith but does not represent or warrant its accuracy, adequacy, or completeness. In no event shall the Library be liable for any incorrect results or analysis; any direct, indirect, special, or consequential damages to any party; or any lost profits arising out of or in connection with the use or the inability to use the data or the services provided. The Library makes these data and services available as a convenience to the public, and for no other purpose. The Library reserves the right to change or revise published data and/or services at any time.

Standard order process:

Digital form:

Format name: TIFF
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Metadata Reference Information:

Metadata date: 01/06/2014

Metadata review date: 07/19/2013

Metadata review date: 04/17/2013

Metadata review date: 12/21/2008

Metadata contact:

Woolpert, Inc.
116 Inverness Drive East, Suite 105
Englewood, CO 80112
Telephone: 303-925-1400
Fax: 303-925-1401