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springpheno (version 0.5.0)

Spring Phenological Indices

Description

Computes the extended spring indices (SI-x) and false spring exposure indices (FSEI). The SI-x indices are standard indices used for analysis in spring phenology studies. In addition, the FSEI is also from research on the climatology of false springs and adjusted to include an early and late false spring exposure index. The indices include the first leaf index, first bloom index, and false spring exposure indices, along with all calculations for all functions needed to calculate each index. The main function returns all indices, but each function can also be run separately. Allstadt et al. (2015) Ault et al. (2015) Peterson and Abatzoglou (2014) Schwarz et al. (2006) Schwarz et al. (2013) .

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Version

Install

install.packages('springpheno')

Monthly Downloads

155

Version

0.5.0

License

Unlimited

Maintainer

Adrienne Wootten

Last Published

November 11th, 2021

Functions in springpheno (0.5.0)

chilldate

Chill Date Calculator
YEAR

Years of the Data
TMAX

Daily High Temperature data
BatonRouge

Example Data for use with springpheno package.
daylength

Daylength Calculator
chillh

Chill Hours Calculator
TMIN

Daily Low Temperature data
damageindex

Damage Index Calculator
calc_si

Spring Index Calculator
FSEI

False Spring Exposure Index
leafindex

Leaf Index Calculator
lat

Latitude
growdh

Growing Degree Hours Calculator
synval

Synoptic Event Identifier
freezedates

Freeze Date Calculator
falsesprings

False Spring Indicators
soldec

Solar Declination Determination