get_model_temp: Download GCM temperature data

In ropensci/rWBclimate: A package for accessing World Bank climate data

Download GCM temperature data

Description

Function wraps get_climate_data() and returns temperature by basin or country in degrees C as output from all 15 models, for the a1 and b2 scenarios.

Usage

get_model_temp(locator, type, start, end)

Arguments

locator	A vector of either watershed basin ID's from http://data.worldbank.org/sites/default/files/climate_data_api_basins.pdf It can be just a single basin id, or a vector of ids. ids should be strings.
type	the type of data to retrieve, must be "mavg" for monthly averages, "annualavg" for annual averages, "manom" for monthly anomaly, and "annualanom" for annual anomaly.
start	the start year to gather data for.
end	the end year to gather data to.

Details

start and end year can be any years, but all years will be coerced into periods outlined by the API (http://data.worldbank.org/developers/climate -data-api) anomaly periods are only valid for future scenarios and based on a reference period of 1969 - 1999, see API for full details.

Value

a dataframe with temperature predictions in degrees C for all scenarios, gcms, for each time period.

Examples

## Not run: 
# Get data for 2 basins, annual average temperature for all valid time periods
# then subset them, and plot
temp_dat <- get_model_temp(c("2","231"),"annualavg",1900,3000)
temp_dat <- subset(temp_dat,temp_dat$gcm=="ukmo_hadcm3")
temp_dat <- subset(temp_dat,temp_dat$scenario!="b1")
ggplot(temp_dat,aes(x=fromYear,y=data,group=locator,
colour=locator))+geom_path()

### Get data for 4 countries with monthly tempitation values
temp_dat <- get_model_temp(c("USA","BRA","CAN","YEM"),"mavg",2020,2030)
temp_dat <- subset(temp_dat,temp_dat$gcm=="ukmo_hadcm3")
temp_dat <- subset(temp_dat,temp_dat$scenario!="b1")
ggplot(temp_dat,aes(x=as.factor(month),y=data,group=locator,
colour=locator))+geom_path()

## End(Not run)

ropensci/rWBclimate documentation built on Sept. 4, 2024, 5:53 p.m.