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Get hourly precipitation at data site

Source: R/get-precip.R
get_precip.Rd

Precipitation is downloaded at an hourly scale based on the provided coordinates.

Usage

get_precip(data, lat, long, method, token = NULL)

Arguments

data

the data to get matching precipitation data for

lat

the latitude to get precipitation data at

long

the longitude to get precipitation data at

method

method used to get data either "merra-2" or "nldas"

token

only required for nldas method. see details for how to obtain this token.

Value

a data.frame with two columns:

  • DateTime: The datetime (POSIXct) in the same timezone as the data, at an hourly resolution.

  • Precip_mm_hr: Average precipitation at the requested point in mm per hour.

Details

There are two different datasets that can be downloaded via this function:

  • Merra-2: Available from NASA power. This dataset is available across a global scale at a resolution of 0.5 x 0.625 degrees available from 1981 to near real time

  • NLDAS: Available from NASA Earthdata. This dataset is available across CONUS at a resolution of 0.125 × 0.125 degrees available from 1981 to near real time. This data requires a token to access the data. See here for directions on creating a token. Note that this token should be kept secret.

Examples

data <- example_data[example_data$Date == "2024-11-13",]
precip <- get_precip(data, 43.96775, -122.63012, "merra-2")
#> Registered S3 methods overwritten by 'bit64':
#>   method               from  
#>   as.double.integer64  cheapr
#>   as.integer.integer64 cheapr