Details and Metadata

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Methods

The methods followed in the creation of the dataset, including description of field, laboratory and processing steps, and quality control procedures

Past Methods (No longer in use)

  • Transects
    Started: 2000-01-01
    Ended: 2004-12-31

    Four transects on Mount Mansfield's chin with 1.5X1.5m quadrats every 50 meters.

  • Phototransect images
    Started: 2004-07-01
    Ended: 2004-07-30

    Phototransect images were standardized by using a 35mm camera, a stock 50 mm lens, a precise focal distance (5 meters), a constant aperature (16 or 22), and an in-photo reference scale (a yellow and black striped meter board). Camera to meter board compass bearings were recorded for each transect.

  • Reference print
    Started: 2004-07-01
    Ended: 2004-07-30

    A second camera was used to capture an image of the entire photo point landscape- camera, tripod, meter board and all- generating a reference print for each site to be used in the field to ensure follow up photomonitoring images depict the same scene

Dataset Fields

Detailed documentation of the fields comprising the dataset, including the type of measurement, units where applicable, and any controlled vocabularies or code lists present in the data


Field Name Caption Description Additional Information
Quadrat_PhotoQuadrat Photo

Quadrat photo file name

Measurement type: Nominal
Cluster_NumCluster Number

Unique cluster ID

Measurement type: Nominal
DatePhoto Date

Date photo was taken

Measurement type: DateTime
Date/Time Format: MM/DD/YYYY
TimePhoto Time

Time photo was taken

Measurement type: DateTime
Date/Time Format:
Cam_HtCamera Height

Height of camera at which photo was taken

Measurement type: Nominal
Pin_Trail_DistPin to Trail Distance

Distance from location pin to trail

Measurement type: Nominal
Pin_CornerLocation Pin Corner

Location of pin corner in quadrat frame

Measurement type: Nominal
Quadrat_FrameQuadrat Frame Bearing

Quadrat frame bearing, NW to NE

Measurement type: Interval
Unit: unavailable
Precision: 10
CamCamera Type

Type of camera used to take photo

Measurement type: Nominal
LensLens Type

Type of lens used to take photo

Measurement type: Nominal
Northing_CoordNorthing GPS Coordinate

Northward measured GPS coordinate

Measurement type: Interval
Unit: unavailable
Precision: 0.0000000001
Easting_CoordEasting GPS Coordinate

Eastward measured GPS coordinate

Measurement type: Interval
Unit: unavailable
Precision: 0.0000000001

Sampling Equipment

Equipment and software used to collect data, including how that equipment was used.

No sampling equipment recorded for this dataset

Site Characteristics

The spatial extent of the dataset site coverage, and descriptions of the spatial extent and context for the data collection

  • Site Description

    Twenty-four 5 meter phototransects and sixty-four 50 cm by 50 cm photoquadrats were subjectively sited in trampling-disturbed trailside sectors of the Mount Mansfield Natural Area. Selection criteria include site homogeneity, ease of access, and ability to accurately relocate sites for comparitive purposes. All transects and quadrats showed evidence of trampling induced vegitation and/or soil loss loss with disturbance levels ranging from light to extreme