npn_get_agdd_point_data: Get AGDD Point Value

In rnpn: Interface to the National 'Phenology' Network 'API'

Get AGDD Point Value

Description

This function is for requesting AGDD point values. Because the NPN has a separate data service that can provide AGDD values which is more accurate than Geoserver this function is ideal when requested AGDD point values.

Usage

npn_get_agdd_point_data(layer, lat, long, date, store_data = TRUE)

Arguments

layer	The name of the queried layer.
lat	The latitude of the queried point.
long	The longitude of the queried point.
date	The queried date.
store_data	Boolean value. If set TRUE then the value retrieved will be stored in a global variable named point_values for later use.

Details

As this function only works for AGDD point values, if it's necessary to retrieve point values for other layers please try the npn_get_point_data() function.

Value

Returns a numeric value of the AGDD value at the specified lat/long/date. If no value can be retrieved, then -9999 is returned.

Examples

## Not run: 
npn_get_agdd_point_data(
  layer = "gdd:agdd",
  lat = 32.4,
  long = -110,
  date = "2020-01-15"
)

## End(Not run)

rnpn documentation built on April 3, 2025, 5:54 p.m.