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

Current Methods

  • Monitoring on Mount Mansfield
    Started: 1992-07-15

    Sugar maple and yellow birch are monitored at 1400 and 2200 feet on Mansfield


  • Started: 1999-07-15

    Yellow birch and paper birch at 2600 feet on Mansfield were added to represent high elevation fall phenology.

  • Monitoring at Lye Brook

    Red maple at 1400 feet in the Lye Brook Wilderness Area was added as a southern Vermont monitoring site.


  • Started: 1995-07-15

    Red maple (male and female) and white ash are monitored at 1400 feet, only.

  • Crown metrics
    Started: 1991-07-15

    Visual crown ratings are recorded on 5 trees and 5 saplings (same trees as for bud development ratings).

  • New color and leaf drop
    Started: 1991-07-15

    Visual crown ratings consist of percent color other than green, transparency (%), dieback-loss of leaves (%).


  • Started: 1994-07-15

    Crown density measurement was added in 1994 as a way to better estimate leaf drop.


  • Started: 1991-07-15

    Initial crown ratings are recorded in July, then every other week until color and drop changes rapidly (end of September) when weekly measurements are made. Full leaf off density is used to calculate percent leaf drop at each visit.


  • Started: 2001-07-15

    New color and leaf drop methods added to existing methods for testing. Color based on % color visible regardless of leaf drop. Added % green. Leaf drop based on visual estimate rather than measures of density, transparency or dieback. Total of color, green and leaf drop to equal 100%.

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
datedate

Date

DateTime Date/Time Format: DD/MM/YYYY
DOYDOY

Day of the Year

Nominal
ElevationElevation

Elevation

Interval Units:
NotesNotes

Notes

Nominal
numnum

Numerical Date

DateTime Date/Time Format: other
PercentColorR1PercentColorR1

Percent color R1

Ratio Units:
PercentColorR2PercentColorR2

Percent Color R2

Interval Units:
PercentColorR3PercentColorR3

Percent Color R3

Interval Units:
PercentColorR4PercentColorR4

Percent Color R4

Interval Units:
PercentColorR5PercentColorR5

Percent Color R5

Interval Units:
PercentColorRAVEPercentColorRAVE

Percent Color Rave

Interval Units:
PercentColorT1PercentColorT1

Percent Color T1

Interval Units:
PercentColorT2PercentColorT2

Percent Color T2

Interval Units:
PercentColorT3PercentColorT3

Percent Color T3

Interval Units:
PercentColorT4PercentColorT4

Percent Color T4

Interval Units:
PercentColorT5PercentColorT5

Percent Color T5

Interval Units:
PercentColorT6PercentColorT6

Percent Color T6

Interval Units:
PercentColorTAVEPercentColorTAVE

Percent Color Tave

Interval Units:
PercentDensityR1PercentDensityR1

Percent Density R1

Interval Units:
PercentDensityR2PercentDensityR2

Percent Density R2

Interval Units:
PercentDensityR3PercentDensityR3

Percent Density R3

Interval Units:
PercentDensityR4PercentDensityR4

Interval Units:
PercentDensityR5PercentDensityR5

Percent Density R5

Interval Units:
PercentDensityRAVEPercentDensityRAVE

Percent density Rave

Interval Units:
PercentDensityT1PercentDensityT1

Percent Density T1

Interval Units:
PercentDensityT2PercentDensityT2

Percent Density T2

Interval Units:
PercentDensityT3PercentDensityT3

Percent Density T3

Interval Units:
PercentDensityT4PercentDensityT4

Percent Density T4

Interval Units:
PercentDensityT5PercentDensityT5

Percent Density T5

Interval Units:
PercentDensityT6PercentDensityT6

Percent Density T6

Interval Units:
PercentDensityTAVEPercentDensityTAVE

Percent Density TAVE

Interval Units:
PercentDKR1PercentDKR1

Percent DK R1

Interval Units:
PercentDKR2PercentDKR2

Percent DK R2

Interval Units:
PercentDKR3PercentDKR3

Percent DK R3

Interval Units:
PercentDKR4PercentDKR4

Percent DK R4

Interval Units:
PercentDKR5PercentDKR5

Percent DK R5

Interval Units:
PercentDKRAVEPercentDKRAVE

Percent DK RAVE

Interval Units:
PercentDKT1PercentDKT1

Percent DK T1

Interval Units:
PercentDKT2PercentDKT2

Percent DK T2

Interval Units:
PercentDKT3PercentDKT3

Percent DK T3

Interval Units:
PercentDKT4PercentDKT4

Percent DK T4

Interval Units:
PercentDKT5PercentDKT5

Percent DK T5

Interval Units:
PercentDKT6PercentDKT6

Percent DK T6

Interval Units:
PercentDKTAVEPercentDKTAVE

Percent DK TAVE

Interval Units:
PercentLeafDropR1PercentLeafDropR1

Percent Leaf Drop R1

Interval Units:
PercentLeafDropR2PercentLeafDropR2

Percent Leaf Drop R2

Interval Units:
PercentLeafDropR3PercentLeafDropR3

Percent Leaf Drop R3

Interval Units:
PercentLeafDropR4PercentLeafDropR4

Percent Leaf Drop R4

Interval Units:
PercentLeafDropR5PercentLeafDropR5

Percent Leaf Drop R5

Interval Units:
PercentLeafDropRAVEPercentLeafDropRAVE

Percent Leaf Drop Rave

Interval Units:
PercentLeafDropT1PercentLeafDropT1

Percent Leaf Drop T1

Interval Units:
PercentLeafDropT2PercentLeafDropT2

Percent Leaf Drop T2

Interval Units:
PercentLeafDropT3PercentLeafDropT3

Percent Leaf Drop T3

Interval Units:
PercentLeafDropT4PercentLeafDropT4

Percent Leaf Drop T4

Interval Units:
PercentLeafDropT5PercentLeafDropT5

Percent Leaf Drop T5

Interval Units:
PercentLeafDropT6PercentLeafDropT6

Percent Leaf Drop T6

Interval Units:
PercentLeafDropTAVEPercentLeafDropTAVE

Percent Leaf Drop TAVE

Interval Units:
PercentTRR1PercentTRR1

Percent TR R1

Interval Units:
PercentTRR2PercentTRR2

Percent TR R2

Interval Units:
PercentTRR3PercentTRR3

Percent TR R3

Interval Units:
PercentTRR4PercentTRR4

Percent TR R4

Interval Units:
PercentTRR5PercentTRR5

Percent TR R5

Interval Units:
PercentTRRAVEPercentTRRAVE

Percent TR RAVE

Interval Units:
PercentTRT1PercentTRT1

Percent TR T1

Interval Units:
PercentTRT2PercentTRT2

Percent TR T2

Interval Units:
PercentTRT3PercentTRT3

Percent TR T3

Interval Units:
PercentTRT4PercentTRT4

Percent TR T4

Interval Units:
PercentTRT5PercentTRT5

Percent TR T5

Interval Units:
PercentTRT6PercentTRT6

Percent TR T6

Interval Units:
PercentTRTAVEPercentTRTAVE

Percent TR TAVE

Interval Units:
SppSpp

Specie code using the first letter of the first and second part of the species common name IE Sugar maple = SM

Nominal
SppModSppMod

Male or Female

Nominal
UniqueIDUniqueID

Unique ID

Nominal
VMCSiteVMCSite

VMC site

Nominal
YearYear

Year

DateTime Date/Time Format: YYYY

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

    Upper elevation site (2200 ft.) added in the Underhill State Park.

  • Site Description

    West slope of Mount Mansfield in the Browns River watershed at low elevation site (1400 ft.) at the Proctor Maple Research Center,