Template: Veg Cover
Description: Stand Age
The age of standing live trees. Stand age is typically only reported for forest ecosystems. If reporting stand age for non-forest ecosystems, describe details in Approach.
|Stand age statistic
The statistic for the measurement reported. Use predefined list (e.g., mean, min / max, standard deviation, etc). If appropriate, report the type of statistic (e.g., spatial for spatial standard deviation) in STATISTIC_TYPE.
|Stand age statistic type
The type of statistic reported if appropriate (e.g., spatial). Use predefined list.
|Number of observations used to determine stand age statistic
Number of observations (samples / replicates) used to calculate the STATISTIC for the reported measurement.
|Stand age measurement approach
|Stand age measurement date
Please report the date at the precision known. Allowed reporting precisions are YYYY, YYYYMM, YYYYMMDD, and YYYYMMDDHHMM. For measurements conducted during a campaign or for temporal averages, use DATE_START and DATE_END instead of DATE.
|Start date of stand age measurment
Start date of a measurement campaign or start date of a temporal average. Please report the date at the precision known. Allowed reporting precisions are YYYY, YYYYMM, YYYYMMDD, and YYYYMMDDHHMM.
|End date of stand age measurment
End date of a measurement campaign or end date of a temporal average. Please report the date at the precision known. Allowed reporting precisions are YYYY, YYYYMM, YYYYMMDD, and YYYYMMDDHHMM.
|Uncertainty in the stand age measurement date
If uncertainty in the start date differs than end date, report the uncertainty for start date here in DATE_UNC and the uncertainty for end date in Comments.
|Stand age comments
STATISTIC Options (back to top)
|Quantile at 1% of distribution
|Quantile at 5% of distribution
|Quantile at 10% of distribution
|Quantile at 25% of distribution
|Median – 50th Percentile
|Median – Quantile at 50% of distribution
|Quantile at 75% of distribution
|Quantile at 90% of distribution
|Quantile at 95% of distribution
|Quantile at 99% of distribution
|Average (mean) value of sample population
|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.
|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.
|Estimate made by expert familiar with site
STATISTIC_TYPE Options (back to top)
|The statistic indicated is a metric that describes the spatial component of the sample population. For example, use spatial for the standard devation of samples (observations) that represents different locations at the site for the same time period.