mintrendmeta: Area-wide Minimum-Values Trend

In maibrittbergh/dischanalyst: Analyses Hydrological Data, especially Discharge Data

Area-wide Minimum-Values Trend

Description

Calculating Trend for annual minimum values. It is possible to calculate the trend for the minimum values of a season or for the whole hydrological year.

Usage

mintrendmeta(metadata, data, Startyear, Endyear)

Arguments

metadata	data.frame; Overview of GRDC-Dataset. The metadata can be created by metadata_grdc function.
data	list; Contains all stations that the discharge analysis should consider. List can be created by grdc_list. Each entry of the list contains the existing discharge measurements (as numeric) and the corresponding dates (as character) for the station.
Startyear	numeric; Startyear of timerange.
Endyear	numeric; Endyear of timerange.

Value

dataframe. Including the stationname, the river, the spatial information of the station, the trend (linear model and zyp/"yuepilon"approach (with PreWhitening and Autocorrelation)) trend within every year/winter/summer/spring/autumn in timeframe.

intercept_zyp

intercept created by zyp.trend.vector

slope_zyp

slope created by zyp.trend.vector

sig_zyp

significance (Kendall's P-Value) for the final detrended time-series

intercept_ls

intercept created by lm

slope_ls

slope created by lm

maibrittbergh/dischanalyst documentation built on May 13, 2022, 1:52 a.m.