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: foot
Precision: 1
day246Day 246 percent leaf drop

Average percent leaf drop on day-of-year 246

Measurement type: Ratio
Unit: percent
Precision: 0.1
day247Day 247 percent leaf drop

Average percent leaf drop on day-of-year 247

Measurement type: Ratio
Unit: percent
Precision: 0.1
day248Day 248 percent leaf drop

Average percent leaf drop on day-of-year 248

Measurement type: Ratio
Unit: percent
Precision: 0.1
day249Day 249 percent leaf drop

Average percent leaf drop on day-of-year 249

Measurement type: Ratio
Unit: percent
Precision: 0.1
day250Day 250 percent leaf drop

Average percent leaf drop on day-of-year 250

Measurement type: Ratio
Unit: percent
Precision: 0.1
day251Day 251 percent leaf drop

Average percent leaf drop on day-of-year 251

Measurement type: Ratio
Unit: percent
Precision: 0.1
day252Day 252 percent leaf drop

Average percent leaf drop on day-of-year 252

Measurement type: Ratio
Unit: percent
Precision: 0.1
day253Day 253 percent leaf drop

Average percent leaf drop on day-of-year 253

Measurement type: Ratio
Unit: percent
Precision: 0.1
day254Day 254 percent leaf drop

Average percent leaf drop on day-of-year 254

Measurement type: Ratio
Unit: percent
Precision: 0.1
day255Day 255 percent leaf drop

Average percent leaf drop on day-of-year 255

Measurement type: Ratio
Unit: percent
Precision: 0.1
day256Day 256 percent leaf drop

Average percent leaf drop on day-of-year 256

Measurement type: Ratio
Unit: percent
Precision: 0.1
day257Day 257 percent leaf drop

Average percent leaf drop on day-of-year 257

Measurement type: Ratio
Unit: percent
Precision: 0.1
day258Day 258 percent leaf drop

Average percent leaf drop on day-of-year 258

Measurement type: Ratio
Unit: percent
Precision: 0.1
day259Day 259 percent leaf drop

Average percent leaf drop on day-of-year 259

Measurement type: Ratio
Unit: percent
Precision: 0.1
day260Day 260 percent leaf drop

Average percent leaf drop on day-of-year 260

Measurement type: Ratio
Unit: percent
Precision: 0.1
day261Day 261 percent leaf drop

Average percent leaf drop on day-of-year 261

Measurement type: Ratio
Unit: percent
Precision: 0.1
day262Day 262 percent leaf drop

Average percent leaf drop on day-of-year 262

Measurement type: Ratio
Unit: percent
Precision: 0.1
day263Day 263 percent leaf drop

Average percent leaf drop on day-of-year 263

Measurement type: Ratio
Unit: percent
Precision: 0.1
day264Day 264 percent leaf drop

Average percent leaf drop on day-of-year 264

Measurement type: Ratio
Unit: percent
Precision: 0.1
day265Day 265 percent leaf drop

Average percent leaf drop on day-of-year 265

Measurement type: Ratio
Unit: percent
Precision: 0.1
day266Day 266 percent leaf drop

Average percent leaf drop on day-of-year 266

Measurement type: Ratio
Unit: percent
Precision: 0.1
day267Day 267 percent leaf drop

Average percent leaf drop on day-of-year 267

Measurement type: Ratio
Unit: percent
Precision: 0.1
day268Day 268 percent leaf drop

Average percent leaf drop on day-of-year 268

Measurement type: Ratio
Unit: percent
Precision: 0.1
day269Day 269 percent leaf drop

Average percent leaf drop on day-of-year 269

Measurement type: Ratio
Unit: percent
Precision: 0.1
day270Day 270 percent leaf drop

Average percent leaf drop on day-of-year 270

Measurement type: Ratio
Unit: percent
Precision: 0.1
day271Day 271 percent leaf drop

Average percent leaf drop on day-of-year 271

Measurement type: Ratio
Unit: percent
Precision: 0.1
day272Day 272 percent leaf drop

Average percent leaf drop on day-of-year 272

Measurement type: Ratio
Unit: percent
Precision: 0.1
day273Day 273 percent leaf drop

Average percent leaf drop on day-of-year 273

Measurement type: Ratio
Unit: percent
Precision: 0.1
day274Day 274 percent leaf drop

Average percent leaf drop on day-of-year 274

Measurement type: Ratio
Unit: percent
Precision: 0.1
day275Day 275 percent leaf drop

Average percent leaf drop on day-of-year 275

Measurement type: Ratio
Unit: percent
Precision: 0.1
day276Day 276 percent leaf drop

Average percent leaf drop on day-of-year 276

Measurement type: Ratio
Unit: percent
Precision: 0.1
day277Day 277 percent leaf drop

Average percent leaf drop on day-of-year 277

Measurement type: Ratio
Unit: percent
Precision: 0.1
day278Day 278 percent leaf drop

Average percent leaf drop on day-of-year 278

Measurement type: Ratio
Unit: percent
Precision: 0.1
day279Day 279 percent leaf drop

Average percent leaf drop on day-of-year 279

Measurement type: Ratio
Unit: percent
Precision: 0.1
day280Day 280 percent leaf drop

Average percent leaf drop on day-of-year 280

Measurement type: Ratio
Unit: percent
Precision: 0.1
day281Day 281 percent leaf drop

Average percent leaf drop on day-of-year 281

Measurement type: Ratio
Unit: percent
Precision: 0.1
day282Day 282 percent leaf drop

Average percent leaf drop on day-of-year 282

Measurement type: Ratio
Unit: percent
Precision: 0.1
day283Day 283 percent leaf drop

Average percent leaf drop on day-of-year 283

Measurement type: Ratio
Unit: percent
Precision: 0.1
day284Day 284 percent leaf drop

Average percent leaf drop on day-of-year 284

Measurement type: Ratio
Unit: percent
Precision: 0.1
day285Day 285 percent leaf drop

Average percent leaf drop on day-of-year 285

Measurement type: Ratio
Unit: percent
Precision: 0.1
day286Day 286 percent leaf drop

Average percent leaf drop on day-of-year 286

Measurement type: Ratio
Unit: percent
Precision: 0.1
day287Day 287 percent leaf drop

Average percent leaf drop on day-of-year 287

Measurement type: Ratio
Unit: percent
Precision: 0.1
day288Day 288 percent leaf drop

Average percent leaf drop on day-of-year 288

Measurement type: Ratio
Unit: percent
Precision: 0.1
day289Day 289 percent leaf drop

Average percent leaf drop on day-of-year 289

Measurement type: Ratio
Unit: percent
Precision: 0.1
day290Day 290 percent leaf drop

Average percent leaf drop on day-of-year 290

Measurement type: Ratio
Unit: percent
Precision: 0.1
day291Day 291 percent leaf drop

Average percent leaf drop on day-of-year 291

Measurement type: Ratio
Unit: percent
Precision: 0.1
day292Day 292 percent leaf drop

Average percent leaf drop on day-of-year 292

Measurement type: Ratio
Unit: percent
Precision: 0.1
day293Day 293 percent leaf drop

Average percent leaf drop on day-of-year 293

Measurement type: Ratio
Unit: percent
Precision: 0.1
day294Day 294 percent leaf drop

Average percent leaf drop on day-of-year 294

Measurement type: Ratio
Unit: percent
Precision: 0.1
day295Day 295 percent leaf drop

Average percent leaf drop on day-of-year 295

Measurement type: Ratio
Unit: percent
Precision: 0.1
day296Day 296 percent leaf drop

Average percent leaf drop on day-of-year 296

Measurement type: Ratio
Unit: percent
Precision: 0.1
day297Day 297 percent leaf drop

Average percent leaf drop on day-of-year 297

Measurement type: Ratio
Unit: percent
Precision: 0.1
day298Day 298 percent leaf drop

Average percent leaf drop on day-of-year 298

Measurement type: Ratio
Unit: percent
Precision: 0.1
day299Day 299 percent leaf drop

Average percent leaf drop on day-of-year 299

Measurement type: Ratio
Unit: percent
Precision: 0.1
day300Day 300 percent leaf drop

Average percent leaf drop on day-of-year 300

Measurement type: Ratio
Unit: percent
Precision: 0.1
day301Day 301 percent leaf drop

Average percent leaf drop on day-of-year 301

Measurement type: Ratio
Unit: percent
Precision: 0.1
day302Day 302 percent leaf drop

Average percent leaf drop on day-of-year 302

Measurement type: Ratio
Unit: percent
Precision: 0.1
day303Day 303 percent leaf drop

Average percent leaf drop on day-of-year 303

Measurement type: Ratio
Unit: percent
Precision: 0.1
day304Day 304 percent leaf drop

Average percent leaf drop on day-of-year 304

Measurement type: Ratio
Unit: percent
Precision: 0.1
day305Day 305 percent leaf drop

Average percent leaf drop on day-of-year 305

Measurement type: Ratio
Unit: percent
Precision: 0.1
day306Day 306 percent leaf drop

Average percent leaf drop on day-of-year 306

Measurement type: Ratio
Unit: percent
Precision: 0.1
day307Day 307 percent leaf drop

Average percent leaf drop on day-of-year 307

Measurement type: Ratio
Unit: percent
Precision: 0.1
day308Day 308 percent leaf drop

Average percent leaf drop on day-of-year 308

Measurement type: Ratio
Unit: percent
Precision: 0.1
day309Day 309 percent leaf drop

Average percent leaf drop on day-of-year 309

Measurement type: Ratio
Unit: percent
Precision: 0.1
day310Day 310 percent leaf drop

Average percent leaf drop on day-of-year 310

Measurement type: Ratio
Unit: percent
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,