rnf_unit_convert: Runoff conversion Volumen per time from/to level

In gavg712/hydroutils: Utilities to work with hydrological data

Description

The function to transform runoff variables from/to cubic meters per second to water level in mm per unit time on a square meter.

Usage

rnf_unit_convert(x, from = "vol", to.time.unit = "day", area)

Arguments

x	Vector numeric. Runoff variable
from	Character. String to convert 'vol' or 'lev'. Default 'vol'
to.time.unit	Character. String containing the time units of conversion. See more in details
area	numeric, catchment area in suare meters.

Details

Runoff unit conversion

Runoff units can be compared with precipitation by transforming it scale into comparable scales. Usually rainfall is measured in level terms meaning the rise of water level in a theoretical volume of base equal to one square meter.

'from' argument require '"vol"' meaning "volume per second" (m3/s) or '"lev"' meaning "level on a time over area" (mm day).

'to.time.unit' is a time fraction string i.e. "day", "3 hour", "10 minutes", etc.

Author(s)

Gabriel Gaona

Examples

# In a catchment area of 1.4 km2 a measure of water outcomes by runoff is
# 0.023 'm3/s'
area <- 1.4 * 1000000 #convert km2 to m2
r_vol <- 0.023
# let's convert to "mm dia"
r_lev <- rnf_unit_convert(r_vol, from = "vol",
                          to.time.unit = "1 day", area = area)
# Reverse process
r_lev <- rnf_unit_convert(r_lev, from = "lev",
                          to.time.unit = "1 day", area = area)

gavg712/hydroutils documentation built on Dec. 27, 2019, 2:22 a.m.