Metadata for Russian Olive Mapping 2013 Metadata for Russian Olive Mapping 2013

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Identification Information:

Citation:

Originator: Montana Natural Heritage Program (MTNHP)
Publication date: 11/17/2017
Title: Russian Olive Mapping 2013
Online linkage: https://ftpgeoinfo.msl.mt.gov/Data/Spatial/NonMSDI/Geodatabases/Russian_Olive_Mapping2013.zip

Abstract:

This layer was created to map the 2013 distribution of Russian Olive and other landcover types in ten large river valley bottoms in eastern Montana known to be infested with Russian olive: the Bighorn, Clark Fork of the Yellowstone, Judith, Milk, Marias, Missouri, Musselshell, Powder, Tongue, and Yellowstone rivers. Other classes mapped include Forested, Upland Emergent, Riparian Emergent, Shrub-Scrub, Sand Bar, Water, Hay, Irrigated Agriculture, Developed, Road, and Railroad.

Purpose:

This dataset is a polygon layer generated through the segmentation of NAIP 2013 imagery in eCognition 9.0 and its classification using RandomForest in Weka. Ten large rivers in eastern Montana known to be infested with Russian olive were selected (Bighorn, Clark Fork of the Yellowstone, Judith, Milk, Marias, Missouri, Musselshell, Powder, Tongue, and Yellowstone) and their valley bottoms were delineated using contours derived from a 10m DEM and NAIP imagery. Four band, 2013 unprocessed (but georeferenced) NAIP imagery at 1m resolution was extracted for each valley bottom and a pseudo-NDVI was calculated. Agricultural lands were masked out using the most recent (2013) Department of Revenue FLU database; segmentation was conducted in non-agricultural lands using eCognition at a scale of 100, an arbitrary number selected through trial-and-error but aiming to map even small stands of Russian olive. Resulting polygon outlines were displayed on top of NAIP and training points were manually digitized within polygons representative of each of the seven following classes: Forested, Russian Olive, Riparian Emergent, Upland Emergent, Shrub-Scrub, Sand Bar, and Water. By default, developed and barren areas (roads, roofs, paved surfaces) were classified as Upland Emergent or Sand Bar and later updated through post-modeling. Classes poorly represented within a given valley bottom did not enter the classification process but were instead manually recoded during post-modeling. Thirty-five attributes were extracted for each polygon and classification was done using RandomForest in Weka, with number of trees set at 200 and a 10-fold internal cross-validation; results were extrapolated to all segments within each valley bottom. Post-modeling was conducted by scanning each valley bottom and correcting misclassifications manually, giving particular attention to Russian olive. An independent validation performed after post-modeling gave overall accuracies above 90% for all rivers, with accuracy for Russian olive greater than 95%. Agriculture polygons were merged to the final segmentation results. Upland Emergent and Sand Bar polygons overlapping tructures from the most recent Framework geodatabase (04/2015) were reclassified to "Developed". Roads and railroads were extracted from the most recent Framework database (02/2015); roads were buffered based on their width, 10m per lane up to 40m maximum and railroads were buffered by 20m. Both layers were "burned in" the final landcover layer.

Supplemental information: See Abstract

Time period of content:

Calendar date: 11/17/2017
Currentness reference: Publication date

Status:

Progress: Completed
Maintenance and update frequency: None Planned

Access constraints:

None. Acknowledgement of the Montana Natural Heritage Program is appreciated in products derived from these data.

Point of contact:

Claudine Tobalske
Montana Natural Heritage Program (MTNHP)
NS 313 The University of Montana, 32 Campus Drive
Missoula, MT 59812
Telephone: 406-243-5196
E-Mail: claudine.tobalske@umontana.edu

Data set credit: Claudine Tobalske at the Montana Natural Heritage Program.

Data Quality Information:

Attribute accuracy report: No minimum mapping unit

Completeness report: The Russian Olive Mapping 2013 is complete.

Horizontal Positional Accuracy Report:

The horizontal accuracy minimum requirement is commensurate with the base imagery scale. The base imagery scale for this layer is 1:12,000. The minimum horizontal accuracy requirement is 5 meters.

Lineage:

Source information:

Originator: Montana Natural Heritage Program
Publication date: 11/17/2017
Title: Russian Olive Mapping 2013
Calendar date: 11/17/2017

Process step: See abstract

Process date: 11/17/2017

Process contact:

Claudine Tobalske
Montana Natural Heritage Program
PO Box 201800
Missoula, MT 59812
Telephone: 406-243-5196
E-Mail: claudine.tobalske@montana.edu

Spatial Data Organization Information:

Point and vector object information:

SDTS object type: G-polygon

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:

Entity type label: NHP_Layers

Attribute label: ObjectID

Attribute definition: Internal feature number.
Attribute domain:: Sequential unique whole numbers that are automatically generated.

Attribute label: SHAPE

Attribute definition: Feature geometry.
Attribute domain: Coordinates defining the features.

Attribute label: SHAPE_Area

Attribute definition: Area of feature in square meters
Attribute domain: Positive real numbers that are automatically generated.

Attribute label: SHAPE_Length

Attribute definition: Length in meters.

Attribute label: class

Attribute definition: Landcover Class

Distribution Information:

Distributor:

Claudine Tobalske
NS 313 The University of Montana, 32 Campus Drive
Missoula, MT 59812
Telephone: 406-243-5196
E-Mail: claudine.tobalske@montana.edu

Resource description: Downloadable Data

Distribution liability:

Users must assume responsibility to determine if these data are suitable for their purposes.

Standard order process:

Digital form:

Metadata Reference Information:

Metadata date: 11/17/2017

Metadata review date: 11/17/2017

Metadata contact:

Claudine Tobalske
Montana Natural Heritage Program
NS 313 The University of Montana, 32 Campus Drive
Missoula, MT 59812
Telephone: 406-243-5196
E-Mail: claudine.tobalske@umontana.edu