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)

  • Aerial surveys
    Started: 1985-07-01
    Ended: 2000-12-31

    360 acre aerial photo blocks taken on a grid of 170 statewide points. Aerial surveys flown in 1985, 1995 and 2000

  • Ground surveys
    Started: 1986-07-01
    Ended: 2006-12-31

    Ground surveys on 84 plots to assess dieback and mortality, conducted the year following the aerial surveys. Surveys conducted in 1986, 1991, 1996, 2001 and 2006

  • Images for stereoscope
    Started: 1985-07-01
    Ended: 2000-12-31

    Bursts of 5 photos taken at each point for use with stereoscope

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
CELL_numbCELL_numb

Cell number

Measurement type: Nominal
DECLININGDECLINING

Declining

Measurement type: Interval
Units:
OLDERDEADOLDERDEAD

OLDERDEAD

Measurement type: Interval
Units:
PHOTOnumbPHOTOnumb

Photo number

Measurement type: Nominal
RECENTLYDEADRECENTLYDEAD

RECENTLY DEAD

Measurement type: Interval
Units:
TOTALTOTAL

TOTAL

Measurement type: Interval
Units:
VEG_MORTALITYVEG_MORTALITY

VEG_MORTALITY

Measurement type: Nominal

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

    Vermont hardwood forests