PAMscapes (version 0.7.0)

matchGFS: Match GFS Environmental Data

Description

Downloads and matches wind and precipitation data from the Global Forecast System (GFS) weather model. Data is downloaded from the National Center for Atmospheric Research data server https://rda.ucar.edu/datasets/ds084.1/. The particular GFS dataset downloaded is the closest "forecast" dataset to the particular time (e.g. .f000 or .f003)

Usage

matchGFS(x)

Value

a dataframe with wind (m/s) and precipitation rate (kg/m^2/s) columns added

Arguments

x

a dataframe with columns UTC, Latitude and Longitude to add environmental data to

Author

Taiki Sakai

Examples

# API response may be slow for this example
# \donttest{
gps <- data.frame(Latitude=c(33.2, 33.5,33.6),
                  Longitude=c(-118.1, -118.4, -119),
                  UTC=as.POSIXct(
                    c('2022-04-28 05:00:00',
                      '2022-04-28 10:00:00',
                      '2022-04-28 20:00:00'), tz='UTC'))
gps <- matchGFS(gps)
# }