The data are geographic and atmospheric measures on a very coarse 24 by 24 grid covering Central America. This data was provided by the NASA Langley Research Center Atmospheric Sciences Data Center as part of the ASA Data Expo in 2006. Monthly averages of a set of atmospheric measurements are provided for Jan 1995 to Dec 2000. A subset of this data is available from the `GGally` package.
nasa
Format
A data frame with 41472 (= 24 x 24 x 72) rows and 15 variables:
Source
http://stat-computing.org/dataexpo/2006/
Structural variables
- time
time index for each month from 1 (= Jan 1995) to 72 (= Dec 2000)
- id
identifier for each grid point 1-1 to 24-24
- lat, long
geographic latitude and longitude
- elevation
altitude of the location in meters above sea level
- month, year, date
year/month of each measurement
Measured variables
- cloudlow, cloudmid, cloudhigh
Cloud cover (in percent) at low, middle, and high levels.
- ozone
mean ozone abundance (in dobson)
- pressure
mean surface pressure (in millibars)
- surftemp, temperature
mean surface/near surface air temperature (in Kelvin)
Examples
data(nasa) library(dplyr) library(ggplot2) nasa %>% filter(id == "1-10") %>% ggplot(aes(vars = vars(starts_with("cloud"), ozone, temperature))) + geom_pcp(aes(colour=month))
