koppenMatrix: Koppen climate classification matrix

In forestgeo/allodb: Tree Biomass Estimation at Extra-Tropical Forest Plots

Description

A table built to facilitate the comparison between the Koppen climate of a site and the allometric equation in question.

Usage

koppenMatrix

Format

An object of class tbl_df (inherits from tbl, data.frame) with 900 rows and 3 columns.

Details

The value of column we is the weight given to the combination of Koppen climates in columns zone1 and zone2; the table is symmetric: zone1 and zone2 can be interchanged. This weight is calculated in 3 steps: (1) if the main climate group (first letter) is the same, the climate weight starts at 0.4; if one of the groups is "C" (temperate climate) and the other is "D" (continental climate), the climate weight starts at 0.2 because the 2 groups are considered similar enough; otherwise, the weight is 0; (2) if the equation and site belong to the same group, the weight is incremented by an additional value between 0 and 0.3 based on precipitation pattern similarity (second letter of the Koppen zone), and (3) by an additional value between 0 and 0.3 based on temperature pattern similarity (third letter of the Koppen zone). The resulting weight has a value between 0 (different climate groups) and 1 (exactly the same climate classification).

See Also

Other datasets: genus_family, gymno_genus, scbi_stem1, shrub_species

Examples

# preview the dataset
print(head(koppenMatrix))

forestgeo/allodb documentation built on Oct. 25, 2021, 9:33 p.m.