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
YearYear

Year of survey

Measurement type: DateTime
Date/Time Format: YYYY
SpeciesSpecies

Species observed. Note that RMS is female red maple, and RMP is male red maple.

Measurement type: Nominal
Fall Color Phenology Monitoring Species Codes
+ show
Appears in data asMeaning
SMsugar maple (Acer saccharum) - View ITIS Record
RMSred maple (Acer rubrum) - View ITIS Record
WAwhite ash (Fraxinus americana) - View ITIS Record
WBpaper birch (Betula papyrifera) - View ITIS Record
YByellow birch (Betula alleghaniensis) - View ITIS Record
RMPred maple (Acer rubrum) - View ITIS Record
ElevationElevation

Elevation of survey

Measurement type: Ratio
Unit: unavailable
Precision: 1
day246Day 246 percent color

Average percent fall color on day-of-year 246

Measurement type: Ratio
Unit: unavailable
Precision: 0.1
day247Day 247 percent color

Average percent fall color on day-of-year 247

Measurement type: Ratio
Unit: unavailable
Precision: 0.1
day248Day 248 percent color

Average percent fall color on day-of-year 248

Measurement type: Ratio
Unit: unavailable
Precision: 0.1
day249Day 249 percent color

Average percent fall color on day-of-year 249

Measurement type: Ratio
Unit: unavailable
Precision: 0.1
day250Day 250 percent color

Average percent fall color on day-of-year 250

Measurement type: Ratio
Unit: unavailable
Precision: 0.1
day251Day 251 percent color

Average percent fall color on day-of-year 251

Measurement type: Ratio
Unit: unavailable
Precision: 0.1
day252Day 252 percent color

Average percent fall color on day-of-year 252

Measurement type: Ratio
Unit: unavailable
Precision: 0.1
day253Day 253 percent color

Average percent fall color on day-of-year 253

Measurement type: Ratio
Unit: unavailable
Precision: 0.1
day254Day 254 percent color

Average percent fall color on day-of-year 254

Measurement type: Ratio
Unit: unavailable
Precision: 0.1
day255Day 255 percent color

Average percent fall color on day-of-year 255

Measurement type: Ratio
Unit: unavailable
Precision: 0.1
day256Day 256 percent color

Average percent fall color on day-of-year 256

Measurement type: Ratio
Unit: unavailable
Precision: 0.1
day257Day 257 percent color

Average percent fall color on day-of-year 257

Measurement type: Ratio
Unit: unavailable
Precision: 0.1
day258Day 258 percent color

Average percent fall color on day-of-year 258

Measurement type: Ratio
Unit: unavailable
Precision: 0.1
day259Day 259 percent color

Average percent fall color on day-of-year 259

Measurement type: Ratio
Unit: unavailable
Precision: 0.1
day260Day 260 percent color

Average percent fall color on day-of-year 260

Measurement type: Ratio
Unit: unavailable
Precision: 0.1
day261Day 261 percent color

Average percent fall color on day-of-year 261

Measurement type: Ratio
Unit: unavailable
Precision: 0.1
day262Day 262 percent color

Average percent fall color on day-of-year 262

Measurement type: Ratio
Unit: unavailable
Precision: 0.1
day263Day 263 percent color

Average percent fall color on day-of-year 263

Measurement type: Ratio
Unit: unavailable
Precision: 0.1
day264Day 264 percent color

Average percent fall color on day-of-year 264

Measurement type: Ratio
Unit: unavailable
Precision: 0.1
day265Day 265 percent color

Average percent fall color on day-of-year 265

Measurement type: Ratio
Unit: unavailable
Precision: 0.1
day266Day 266 percent color

Average percent fall color on day-of-year 266

Measurement type: Ratio
Unit: unavailable
Precision: 0.1
day267Day 267 percent color

Average percent fall color on day-of-year 267

Measurement type: Ratio
Unit: unavailable
Precision: 0.1
day268Day 268 percent color

Average percent fall color on day-of-year 268

Measurement type: Ratio
Unit: unavailable
Precision: 0.1
day269Day 269 percent color

Average percent fall color on day-of-year 269

Measurement type: Ratio
Unit: unavailable
Precision: 0.1
day270Day 270 percent color

Average percent fall color on day-of-year 270

Measurement type: Ratio
Unit: unavailable
Precision: 0.1
day271Day 271 percent color

Average percent fall color on day-of-year 271

Measurement type: Ratio
Unit: unavailable
Precision: 0.1
day272Day 272 percent color

Average percent fall color on day-of-year 272

Measurement type: Ratio
Unit: unavailable
Precision: 0.1
day273Day 273 percent color

Average percent fall color on day-of-year 273

Measurement type: Ratio
Unit: unavailable
Precision: 0.1
day274Day 274 percent color

Average percent fall color on day-of-year 274

Measurement type: Ratio
Unit: unavailable
Precision: 0.1
day275Day 275 percent color

Average percent fall color on day-of-year 275

Measurement type: Ratio
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Precision: 0.1
day276Day 276 percent color

Average percent fall color on day-of-year 276

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Precision: 0.1
day277Day 277 percent color

Average percent fall color on day-of-year 277

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Precision: 0.1
day278Day 278 percent color

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day279Day 279 percent color

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Precision: 0.1
day280Day 280 percent color

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Precision: 0.1
day281Day 281 percent color

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day282Day 282 percent color

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day283Day 283 percent color

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day284Day 284 percent color

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day285Day 285 percent color

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day286Day 286 percent color

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Precision: 0.1
day287Day 287 percent color

Average percent fall color on day-of-year 287

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Precision: 0.1
day288Day 288 percent color

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day289Day 289 percent color

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day290Day 290 percent color

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day291Day 291 percent color

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day292Day 292 percent color

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day293Day 293 percent color

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day294Day 294 percent color

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day295Day 295 percent color

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day296Day 296 percent color

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day297Day 297 percent color

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day298Day 298 percent color

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day299Day 299 percent color

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day300Day 300 percent color

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day301Day 301 percent color

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day302Day 302 percent color

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day303Day 303 percent color

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day304Day 304 percent color

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day305Day 305 percent color

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day306Day 306 percent color

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day307Day 307 percent color

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day308Day 308 percent color

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day309Day 309 percent color

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day310Day 310 percent color

Average percent fall color on day-of-year 310

Measurement type: Ratio
Unit: unavailable
Precision: 0.1

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,