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BADM Group: PHEN_EVENT_TYPE

BADM Type: VegCover
Description: Phenological Events
Group Entries per Site: Multiple
Last updated: Mar 02, 2021

BADM Group Overview

BADM variables in this group are organized as shown below. The overview highlights what variables are required per group. It also indicates which variables cannot be specified together ( OR ) in the same group entry. See BADM Basics for more details.

Multiple entries of this BADM group can be reported per site. However, combinations of Ⓒ variables must be unique. Read more:

Required Variable
Optional Variable
Ⓒ Combinations
Examples
RequiredOptional
Phenological Events
  • PHEN_EVENT_TYPE
  • PHEN_EVENT_STATUS Ⓒ
  • PHEN_EVENT_DATE Ⓒ
  • PHEN_EVENT_DATE_STATISTIC Ⓒ
  • PHEN_EVENT_SPP Ⓒ
    		• OR
  • PHEN_EVENT_VEGTYPE Ⓒ
  • PHEN_EVENT_DATE_STATISTIC_METHOD Ⓒ
  • PHEN_EVENT_DATE_STATISTIC_NUMBER
  • PHEN_EVENT_DATE_STD_DEV
  • PHEN_EVENT_DATE_MEAS_UNC
  • PHEN_EVENT_APPROACH
  • PHEN_EVENT_COMMENT

    • BADM variables: Definitions, Units, Requirements

    See Overview tab or BADM Basics for explanation of Required and Optional variables.

    Multiple entries of this BADM group can be reported per site. However, combinations of Ⓒ variables must be unique. Read more:

    Required Variable
    Optional Variable
    Ⓒ Combinations
    Examples
    Variable
    Requirements    		 Units Description
    PHEN_EVENT_TYPE
    Required    		LIST(PHEN_EVENT) ShowPhenology event type
    Use predefined list to indicate phenology event type.
    PHEN_EVENT Options×
    OptionDescription
    BudBreak
    Cotyledons
    Flowering
    Leaf senescence
    Maximum leaf expansion
    Total leaf-off
    PHEN_EVENT_STATUS
    Ⓒ Required    		LIST(PHEN_STATUS) ShowPhenology event status
    Use predefined list to indicate the temportal status of the phenology event type.
    PHEN_STATUS Options×
    OptionDescription
    StartThe event has occurred in 5% of the expected cases (5% of plants, leaves, etc).
    PeakThe event reached the maximum level and it has occurred in 90% of the expected cases.
    EndThe event is no longer occurring (except natural outliers).
    Other
    PHEN_EVENT_SPP
    Ⓒ Optional-a    		Scientific namePhenology event species (taxa)
    Vegetation species being described by the measurement. To enter a plant species, use the scientific name (Genus species Author or Genus Author). Please refer to www.theplantlist.org for current scientific names and authors. If the measurement includes all vegetation present, do not enter a value. Do not use SPP if reporting VEGTYPE.
    PHEN_EVENT_VEGTYPE
    Ⓒ Optional-a    		LIST(VEGTYPE) ShowPhenology event vegetation type
    Use the predefined list to indicate the type of vegetation being described by the measurement (e.g., Grass, Evergreen Tree, Deciduous Tree, etc). If the measurement includes all vegetation present, do not enter a value. If vegetation type is not in predfined list, enter "Other/Not in list" and describe briefly in Approach. Do not use VEGTYPE if reporting SPP.
    VEGTYPE Options×
    OptionDescription
    Grass
    C3 Grass
    C4 Grass
    Grass / GraminoidGrasses, Sedges, Rushes, and other grass-like monocots (member of order Poales)
    Crop
    Herbaceous Crop
    Woody Crop
    Tree
    Deciduous TreeTrees that shed their entire canopy seasonallly. Drought or cold avoidence are common reasons for deciduousness.
    Evergreen TreeTrees that do not seasonally shed their full canopies.
    Shrub
    Herb / Forb
    Annual Herb / Forb
    Perennial Herb / Forb
    Aerenchymatous Plants
    Liana / vine
    SucculantCactus, Euphorbs, including CAM
    Non-vascularMoss, lichen
    Other/Not in listOnly use this option if a major vegetation group is not included already included in the predefined list. If an existing vegetation group is not specific enough, use the existing vegetation option and add details in Approach (rather than using the "Other/Not in list" option).
    No vegetationBare ground, water, or rock. Use only with SPP_PERC_O and SPP_PERC_U
    WaterWater (perennially submerged ground)
    PHEN_EVENT_DATE
    Ⓒ Required-b    		YYYYMMDDHHMMPhenology event date for the reported statistic
    Report the date at the precision known for the specified PHEN_EVENT_DATE_STATSTIC. Allowed reporting precision are YYYYMMDD and YYYYMMDDHHMM. For variability in the date of the phenological event, consider reporting percentiles if possible or use PHEN_EVENT_DATE_STD_DEV or PHEN_EVENT_DATE_MEAS_UNC.
    PHEN_EVENT_DATE_STATISTIC
    Ⓒ Required    		LIST(STATISTIC) ShowPhenology event date statistic
    Only report statistics that can be expressed as a date (e.g., Mean, Minimum, Maximum, Single Observation, and Percentiles). For Standard Deviation and Measurement Uncertainty statistics, use PHEN_EVENT_DATE_STD_DEV or PHEN_EVENT_DATE_MEAS_UNC.
    STATISTIC Options×
    OptionDescription
    MeanAverage (mean) value of sample population
    Standard DeviationStandard deviation may be reported from a sample population that consists of individual or aggregated samples (observations). If the distinction is important, specify in STATISTIC_METHOD or Comments.
    MinimumMinimum value
    1st PercentileQuantile at 1% of distribution
    5th PercentileQuantile at 5% of distribution
    10th PercentileQuantile at 10% of distribution
    25th PercentileQuantile at 25% of distribution
    Median - 50th PercentileMedian - Quantile at 50% of distribution
    75th PercentileQuantile at 75% of distribution
    90th PercentileQuantile at 90% of distribution
    95th PercentileQuantile at 95% of distribution
    99th PercentileQuantile at 99% of distribution
    MaximumMaximum value
    Single observationSingle observation that is not a calculated statistic of replicates either to get a robust estimate or for spatial variability analysis. For example a single biomass observation may be the vegetation harvested in a single 1 x 1 meter area.
    Measurement UncertaintyReport uncertainty as a plus or minus value in the measurement units. For example, enter 1.5 for +/- 1.5 units. Uncertainty may be reported from the instrument's specifications, determined empirically, or estimated by the tower team. Please describe such details in Approach. For uncertainty values that are better described by a range, a percent, or other, please enter information in Comments.
    PHEN_EVENT_DATE_STATISTIC_METHOD
    Ⓒ Optional    		LIST(STATISTIC_METHOD) ShowPhenology event date statistic method
    Method used to generate the reported statistic (e.g., aggregate of individuals, aggregate of sample aggregates) from observations representing the same time period. Use predefined list. The aggregation method is not meant to describe temporal aggregations for example in calculations of higher frequency observations (e.g., sub-minute) to lower frequency observations (e.g., hourly) at a single location.
    STATISTIC_METHOD Options×
    OptionDescription
    Aggregate of individual observationsThe statistic is aggregated from individual observations located within the site. Observations may be grouped into sample areas (e.g., plots) within the site but those groupings are ignored. Statistics generated from individual observations directly yield information on the site generally. The statistic may represent spatial characteristics of the measurement within the site (e.g., spatial heterogeneity) and/or characteristics due to other factors (e.g., population variability).
    Aggregate of sample aggregatesThe statistic is aggregated from aggregated individual observations located in sample areas within the site. For example, individual observations are made in 5 sample plots within a site. "Aggregate of sample aggregates" is used if a plot statistic (e.g., Mean) is first calculated, and then the plot values are aggregated to calculate the site statistic. Statistics generated by this approach are often used to highlight the spatial characteristics within the site (i.e., the spatial heterogeneity of measurement within the site).
    Expert estimateEstimate made by expert familiar with site
    PHEN_EVENT_DATE_STATISTIC_NUMBER
    Optional    		integer numberNumber of observations used to determine phenology event date statistic
    Number of observations (samples / replicates) used to calculate the STATISTIC for the reported measurement.
    PHEN_EVENT_DATE_STD_DEV
    Optional    		daysPhenology event date standard deviation
    Standard deviation may be reported from a sample population that consists of individual or aggregated samples (observations). If the distinction is important, specify in comments.
    PHEN_EVENT_DATE_MEAS_UNC
    Optional    		daysPhenology event date spatial measurement uncertainty
    Report uncertainty as a plus or minus value in the measurement units. For example, enter 1.5 for +/- 1.5 units. Uncertainty may be reported from the instrument's specifications, determined empirically, or estimated by the tower team. Please describe such details in Approach. For uncertainty values that are better described by a range, a percent, or other, please enter information in comments.
    PHEN_EVENT_APPROACH
    Optional    		free textPhenology event observation approach
    PHEN_EVENT_COMMENT
    Optional    		free textPhenology event comments

    BADM Examples

    Choose a variable marked with to show examples of how to submit and interpret these BADM. See BADM Basics for more details.

    Combinations of Ⓒ variables must be unique. Read more: .

    Required Variable
    Optional Variable
    Ⓒ Combinations
    Examples
    Phenological Events
  • PHEN_EVENT_TYPE
  • PHEN_EVENT_STATUS Ⓒ
  • PHEN_EVENT_SPP Ⓒ
  • PHEN_EVENT_VEGTYPE Ⓒ
  • PHEN_EVENT_DATE Ⓒ
  • PHEN_EVENT_DATE_STATISTIC Ⓒ
  • PHEN_EVENT_DATE_STATISTIC_METHOD Ⓒ
  • PHEN_EVENT_DATE_STATISTIC_NUMBER
  • PHEN_EVENT_DATE_STD_DEV
  • PHEN_EVENT_DATE_MEAS_UNC
  • PHEN_EVENT_APPROACH
  • PHEN_EVENT_COMMENT
    • Click a variable marked with to see examples.
    No example currently available

    SPP and VEGTYPE Variables

    Many BADM subgroups and groups have SPP and VEGTYPE variables, like DBH_SPP and DBH_VEGTYPE.

    Do not enter values for SPP and VEGTYPE variables together for the same observation, i.e., in the same row of your CSV file. SPP and VEGTYPE are mutually exclusive, optional variables. Read more at BADM Basics.

    If an observations characterizes the site and is not specific to a single species or to a particular vegetation type, do not enter values for SPP or VEGTYPE:

    However, if the observation characterizes a single species or a particular vegetation type, use SPP or VEGTYPE, like Evergreen Tree in the example below. Do not use both at the same time!

    PHEN_EVENT_DATE Variables

    More coming soon!

    Customize and Download CSV for BADM Submission

    After selecting your desired variables, download the customized CSV file for submission of BADM. For additional submission details, see BADM Submission Instructions. See BADM Basics for general BADM details.

    Multiple entries of this BADM group can be reported per site. However, combinations of Ⓒ variables must be unique. Read more: . See BADM Basics for more details.

    Required Variable
    Optional Variable
    Ⓒ Combinations
    Examples
    Open/Close
    Select
  • Phenological Events
    Required Optional
    PHEN_EVENT_TYPE
    PHEN_EVENT_STATUS Ⓒ
    PHEN_EVENT_DATE Ⓒ
    PHEN_EVENT_DATE_STATISTIC Ⓒ
    PHEN_EVENT_SPP Ⓒ OR PHEN_EVENT_VEGTYPE Ⓒ Both Neither
    PHEN_EVENT_DATE_STATISTIC_METHOD Ⓒ
    PHEN_EVENT_DATE_STATISTIC_NUMBER
    PHEN_EVENT_DATE_STD_DEV
    PHEN_EVENT_DATE_MEAS_UNC
    PHEN_EVENT_APPROACH
    PHEN_EVENT_COMMENT

    • Submit completed CSV file at Upload Data using the BADM option (login required).