Metadata for Planimetric data, Yellowstone River Corridor, Stillwater, Yellowstone, and Dawson Counties, Montana, 2004 Metadata for Planimetric data, Yellowstone River Corridor, Stillwater, Yellowstone, and Dawson Counties, Montana, 2004

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Identification Information:

Citation:

Originator: Merrick and Company

Publication date: 07/11/2005

Title:

Planimetric data, Yellowstone River Corridor, Stillwater, Yellowstone, and Dawson Counties, Montana, 2004

Publication place: Helena, MT
Publisher: Montana State Library

Online linkage: https://ftpgeoinfo.msl.mt.gov/Data/Spatial/NonMSDI/Collections/Yellowstone_River_Clearinghouse/Geodatabases

Larger Work Citation:

Title: Yellowstone River Clearinghouse GIS Layers
Online linkage: http://mslapps.mt.gov/Geographic_Information/Data/DataList/datalist_Details.aspx?did={17daa910-aba0-11e3-a5e2-0800200c9a66}

Browse graphic file name: http://docs.msl.mt.gov/geoinfo/Images/Metadata/yell_river_2004.gif

Abstract:

Planimetric features from the Yellowstone River project collected from air photos of 2004 are represented by photogrammetrically compiled lines, points, and polygons and are stored in feature classes derived from the SDSFIE data design standard. The design file prefix for each entity class name was used for the geodatabase feature class name.

The data is split into four ESRI personal geodatabase files, one each for Dawson and Stillwater Counties and one each for the east and west halves of Yellowstone County. The download size of each database is between 219 and 290 megabytes in size.

The geodatabases contain the following feature classes and subclasses:
BGGEN -- Building polygons
-- Existing Structure
-- Concrete Slab
-- Courtyard within existing structures
COEQP -- Communications Equipment -- Radio Towers
FPGEN -- Future Project Sites
GDSRV -- Areas where ground is obscured by vegetation
HYLIN -- Hydrography Lines
-- Surface Water Course Drain
-- Ditch Aqueduct Centerline
-- Surface Water Course Centerline
HYSUR -- Hydrography Polygons
-- Surface Water Body
-- Surface Water Course
-- Canal Area
HSUR_FALL -- Fall River Edge
IMFDC -- Improvement Flood Control
-- Dam Centerline
-- Levee Centerline
LFHYPC -- Topographic and Bathymetric Contours
-- Intermediate (1-meter interval, 0.5-meter bathymetric)
-- Index (5-meter interval, 2.5-meter bathymetric)
-- Intermediate Depression Contour
-- Index Depression Contour
-- Intermediate Contour Hidden under a structure
-- Index Contour Hidden under a structure
-- Approximate Intermediate Contour in an obscured area
-- Approximate Index Contour in an obscured area
-- Approximate Intermediate Depression Contour in an obscured area
-- Approximate Index Depression Contour in an obscured area
-- Index contour to be suppressed for elevation annotation
LFHYPCA -- Annotation for Topographic Contours
LFHYPS -- Spot Elevations
LFHYPSA -- Annotation for Spot Elevations
LFTOP -- Islands
TRAIR -- Airfield polygons
TRRRD -- Railroad Centerlines
TRRRDB -- Railroad Bridges
TRVEH -- Transportation Vehicle
-- Road Paved
-- Road Unpaved
-- Road Bridge
TRVEHC -- Road Centerline
UTGENP -- Transmission Line Towers
UTGENT -- Tanks

Purpose:

This coverage was created as part of a joint Yellowstone River Conservation Districts 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 Sweetgrass County, Montana to the Missouri River confluence in McKenzie County, North Dakota. It is specifically intended to support the hydraulic, geomorphic, biologic and socioeconomic analyses that are part of the planning study. The first phase of the mapping focused on Stillwater, Yellowstone and Dawson Counties in Montana and included approximately 295 square miles of floodplain.

Time period of content:

Beginning date: 05/01/2004
Ending date: 05/02/2004
Currentness reference: ground condition

Status:

Progress: Complete
Maintenance and update frequency: As needed

Access constraints: None

Use constraints:

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:

Nicole McClain
Project Coordinator
Yellowstone River Conservation District Council (YRCDC)
PO Box 148
Livingston, Montana 59047
Telephone: 406-223-5702
Fax: 406-222-9992
E-Mail: nmcclain@mt.gov

Data Quality Information:

Completeness report:

These data were visually checked for completeness against the orthoimagery. All features that could be collected photogrammetrically per the mapping specifications are present.

Horizontal Positional Accuracy Report:

The horizontal positional accuracy of the data, and the assurance of that accuracy depend, in part, on the accuracy of the data inputs. These inputs consists of color aerial photography, fully digital analytical aerotriangulation (FDAAT) controls and methods, and the photo source camera calibration. The planimetric data output from the inputs meets National Map Accuracy Standards (NMAS).

Quantitative horizontal positional accuracy assessment:

Horizontal positional accuracy value:: Ground GPS: X-coord = 0.110, Y-coord = 0.096; Airborne GPS: X-coord = 0.069, Y-coord = 0.068
Horizontal positional accuracy explanation:: The horizontal positional accuracy value is derived from a standard aerotriangulation process known as a simultaneous bundle adjustment. Coordinates of ground points are derived from the measured coordinates of image points using mathematical functions. These corrections are made to points distributed over a large area, known as a block. The resulting solution is obtained simultaneously for all points to maintain consistency of all the stereo-models within the block.

Vertical positional accuracy report:

The vertical positional accuracy of the data, and the assurance of that accuracy depend, in part, on the accuracy of the data inputs. These inputs consists of color aerial photography, fully digital analytical aerotriangulation (FDAAT) controls and methods, and the photo source camera calibration. The planimetric data output from the inputs meets National Map Accuracy Standards (NMAS).

Quantitative vertical positional accuracy assessment:

Vertical positional accuracy value: Ground GPS: Z-coord = 0.125; Airborne GPS: Z-coord = 0.032
Vertical positional accuracy explanation:: The vertical positional accuracy value is derived from a standard aerotriangulation process known as a simultaneous bundle adjustment. Coordinates of ground points are derived from the measured coordinates of image points using mathematical functions. These corrections are made to points distributed over a large area, known as a block. The resulting solution is obtained simultaneously for all points to maintain consistency of all the stereo-models within the block.

Lineage:

Source information:

Originator: Aerial Surveys International, LLC
Publication date: 05/02/2004
Title: Color Photography
Source scale denominator: 15840
Type of source media: filmstrip
Source contribution: Stereo pairs for photogrammetric compilation.
Calendar date: 05/01/2004
Calendar date: 05/02/2004

Source information:

Originator: Merrick and Company
Publication date: 09/01/2004
Title: Fully Digital Analytical Aerotriangulation Report (FDAAT)
Source contribution: Control network result with camera calibration information
Calendar date: 09/01/2004

Source information:

Originator: Merrick and Company
Publication date: 08/05/2004
Title: Ground Control
Source contribution: Survey data for aerotriangulation and data quality control.
Calendar date: 08/05/2004

Source information:

Originator: U.S. Geological Survey
Publication date: 02/11/2002
Title:: Report of Calibration of Aerial Mapping Camera; USGS Report No. OSL/2825
Source contribution: Camera calibration parameters
Calendar date: 02/11/2002

Source information:

Originator: Chris Ransome and Associates
Publication date: 10/17/2004
Title: Bathymetric Survey
Source contribution:: Bathymetric survey of a portion of the river channel accurate to produce half-meter contours.
Calendar date: 10/17/2004

Source information:

Originator: Merrick and Company
Title: LIDAR (Light Detection and Ranging)
Source contribution: LIDAR points form the basis of the DTM surface.
Calendar date: 09/08/2004
Calendar date: 09/11/2004

Process step:

The planimetric data was photogrammetrically compiled from aerial photography, using softcopy workstations. Ground control data, combined with FDAAT computations, allows for accurate orientation of the photography. Features required by the planimetric code list are compiled from the photography, stored digitally in Microstation (.dgn) files. Planimetric features are represented by linestrings, coded with attributes that identify each feature.

These files are then translated into Arc/Info coverages, where line and polygon topology is built. Finally, the coverage features are imported into the feature classes of a Personal Geodatabase.

LIDAR data was collected using Merrick's ALS40 sensor. The data was field-verified for complete coverage of the project area. Raw data files were parsed into manageable client-specific tiles. These tiles were then processed through automated filtering that separates the data into different classification groups: error points, ground points, and canopy-building points. The data was next taken into a graphic environment to reclassify the erroneous points that may remain in the LIDAR point cloud after auto filter. The surface was then normalized into a digital surface model (DSM). Final data extraction for the client's keypoint (statistically significant points) and canopy-building files were then generated.

Using orthophotography, planimetric features were compiled as breaklines to supplement the LIDAR data. The LIDAR digital surface model was then processed with the breaklines, and contour lines were interpolated. Bathymetric contours from the bathymetric survey were integrated into the data set at this time. The contours were exported from Merrick's MARS software into Microstation. The contour data was checked for spikes and holes, and then imported into Arc/Info coverages for building topology, coding contour types, and creating annotation. Finally, the coverage features are imported into the feature classes of a Personal Geodatabase.

Hypsographic contours lie outside the fall river boundary and are in one-meter intervals. Bathymetric contours, and contours on the river island areas which lie inside the fall river boundary, are in half-meter intervals.

Process date: 02/17/2005

Process contact:

Doug Jacoby
Senior Project Manager
2450 South Peoria Street
Aurora, CO 80014
Telephone: 303-353-3903
Fax: 303-745-0964
E-Mail: doug.jacoby@merrick.com

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

Altitude system definition:

Altitude datum name: North American Vertical Datum of 1988
Altitude resolution: 0.000010
Altitude distance units: meters
Altitude encoding method:: Explicit elevation coordinate included with horizontal coordinates

Distribution Information:

Distributor:

Montana State Library
PO Box 201800
Helena, MT 59620-1800
Telephone: 406-444-5354
Telephone: 406-444-5354
TDD/TTY telephone: Montana Relay 711
Fax: 406-444-0266
E-Mail: geoinfo@mt.gov
E-Mail: geoinfo@mt.gov

Resource description: Downloadable Data

Distribution liability:

Standard order process:

Digital form:

Metadata Reference Information:

Metadata date: 11/15/2013

Metadata review date: 04/17/2013

Metadata review date: 05/12/2005

Metadata contact:

Andy Morris
ArcGIS Services Manager
Merrick and Company
2450 South Peoria Street
Aurora, CO 80014
Telephone: 303-353-3929
Telephone: 303-751-0741
Fax: 303-745-0964
E-Mail: andy.morris@merrick.com