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Read PRISM raster layers into data frame

Source: R/read_prism_rasters.R
read_prism_rasters.Rd

Scan directory for rasters (*.tif) and parse PRISM layer names into columns of a data frame.

Usage

read_prism_rasters(dir_tif)

Arguments

dir_tif

directory path PRISM daily rasters were downloaded and cropped using read_importprism().

Value

A data frame with columns for:

  • path_tif path to GeoTIFF

  • lyr layer name

  • date date of modeled weather data

  • md month-day

  • variable variable of modeled weather data

  • version version (1-8)

  • date_updated date the model was updated

Details

Any existing rasters in dir_tif are scanned based on a common naming structure for the raster file name (prism_daily_{month}-{day}.tif) and layer names ({date}_{variable}_v{version}-{date_updated}) into a data frame.

For more on the Parameter-elevation Relationship on Independent Slopes Model (PRISM), see read_importprism().

Examples

dir_tif <- system.file("prism", package = "tbeptools")
read_prism_rasters(dir_tif)
#> # A tibble: 10 × 7
#>    path_tif                 lyr   date       md    variable version date_updated
#>    <chr>                    <chr> <date>     <chr> <chr>      <int> <date>      
#>  1 /home/runner/work/_temp… 1981… 1981-01-01 01-01 ppt            8 1981-07-21  
#>  2 /home/runner/work/_temp… 1981… 1981-01-01 01-01 pptytd         8 1981-07-21  
#>  3 /home/runner/work/_temp… 1981… 1981-01-01 01-01 tdmean         8 1981-07-21  
#>  4 /home/runner/work/_temp… 1981… 1981-01-01 01-01 tmax           8 1981-07-21  
#>  5 /home/runner/work/_temp… 1981… 1981-01-01 01-01 tmin           8 1981-07-21  
#>  6 /home/runner/work/_temp… 1981… 1981-01-02 01-02 ppt            8 1981-07-21  
#>  7 /home/runner/work/_temp… 1981… 1981-01-02 01-02 pptytd         8 1981-07-21  
#>  8 /home/runner/work/_temp… 1981… 1981-01-02 01-02 tdmean         8 1981-07-21  
#>  9 /home/runner/work/_temp… 1981… 1981-01-02 01-02 tmax           8 1981-07-21  
#> 10 /home/runner/work/_temp… 1981… 1981-01-02 01-02 tmin           8 1981-07-21