phenology: Phenology data for North American lilacs

In GISTools: Further Capabilities in Geographic Information Science

Phenology data for North American lilacs

Description

Data set from Schwartz, M.D. and J.M. Caprio, 2003, North American First Leaf and First Bloom Lilac Phenology Data, IGBP PAGES/World Data Center for Paleoclimatology Data Contribution Series # 2003-078. NOAA/NGDC Paleoclimatology Program, Boulder CO, USA.

Usage

 data(phenology)

Format

• chinensis Syringa Chinensis Observation Stations SpatialPointsDataFrame - geographical projection

• chinensis2 Syringa Chinensis Observation Stations SpatialPointsDataFrame - equal area projection

• us_states States of US SpatialPolygonsDataFrame - geographical projection

• us_states2 States of US SpatialPolygonsDataFrame - equal area projection

Source

http://www.ncdc.noaa.gov/paleo/phenology.html

Examples

# Read in the data
data(phenology)
# Split the plot in two
opar <- par(mfrow=c(2,1))
# Plot US states
plot(us_states2)
# Add Locations of observation stations
plot(chinensis2,add=TRUE,pch=16,col='red')
# Plot a histogram of year of observation next to this
hist(chinensis2$Year)
par(opar)

GISTools documentation built on Oct. 3, 2024, 1:08 a.m.