Make.RequestWindows: Creating time windows for CDS queries

In ErikKusch/KrigR: Downloading, Aggregating, and Kriging of ECMWF CDS-Data

Creating time windows for CDS queries

Description

Make a list holding date ranges for which to make individual CDS queries

Usage

Make.RequestWindows(
  Dates_df,
  BaseTResolution,
  BaseTStep,
  BaseTStart,
  TChunkSize,
  DataSet
)

Arguments

Dates_df	A two-column data frame (column names: "IN" and "UTC") holding POSIXct elements. Created with Make.UTC.
BaseTResolution	Character. Base temporal resolution of queried data on CDS
BaseTStep	Numeric. Base time steps of queried data on CDS
BaseTStart	POSIXct. Base starting date and time of queried data on CDS
TChunkSize	Numeric. Maximum amount of layers to include in each query
DataSet	Character. Name of data set. Usually a set of words separated by dashes. See possible datasets by calling Meta.List.

Value

List. Contains:

• QueryTimeWindowsList of dates for individual CDS queries as used by Make.Request..

• QueryTimesCharacter. Layers of data in the raw data set.

Examples

IN_DateStart <- as.POSIXct("1995-01-01 00:00", tz = "CET")
IN_DateStop <- as.POSIXct("2005-01-01 23:00", tz = "CET")
Dates_df <- Make.UTC(DatesVec = c(IN_DateStart, IN_DateStop))
Make.RequestWindows(Dates_df = Dates_df,
                    BaseTResolution = "hour",
                    BaseTStep = 24
                    BaseTStart = as.POSIXct("1950-01-01 00:01", tz = "UTC")
                    TChunkSize = 12000)

ErikKusch/KrigR documentation built on Feb. 17, 2025, 2:09 p.m.