zonalDaymet: zonalDaymet
In Conte-Ecology/zonalDaymet: A toolset to process Daymet climate records

zonalDaymet provides tools to establish a relationship between Daymet climate records and user-defined spatial polygons within the R environment.

Daymet climate records are provided in a gridded format (1 km^2 resolution) as netCDF files. Each point location in the grid, specified by latitude/longitude coordinates, has one time series associated with each climate variable. Each netCDF file contains 1 variable record over 1 year for the entire North American range. The zonalDaymet package provides tools to accomplish the following:

Download netCDF climate mosaics from the Daymet THREDDS Server
Iterate through netCDF files combining time series records and variables into tables
Spatially average climate records within user-specified spatial polygons
Process spatial objects into manageable pieces within the R environment to avoid memory issues during spatial averaging
Return subsets from the climate mosaics given latitude/longitude coordinate bounds

Functionality is provided to return spatial averages as either a dataframe in the current R environment or write directly to a SQLite database. A function is provided to simplify record selection from the database. If a polygon is too small to warrant a spatial average of points, the nearest point is assigned to the polygon.

Conte-Ecology/zonalDaymet documentation built on Aug. 11, 2021, 12:52 a.m.