Annual data TN

Defines the sources of nutrient (nitrogen) for each year and catchments.

Usage

annual_data_TN

Format

A data frame with 14 variables:

BasinID

integer. The basin unique identifier.

YearValue

integer. The year for which data are defined.

HydroID

integer positive. Unique catchment identifier.

NextDownID

integer. Unique identifier of the catchment to which the catchment goes.

Atm

double. Annual nitrogen deposition from atmosphere (ton/yr).

Min

double. Annual amount of nitrogen from mineral fertilisers (ton/yr).

Man

double. Annual amount of nitrogen in manure fertilisers (ton/yr).

Fix

double. Annual amount of nitrogen fixation by leguminous crops and fodder (ton/yr).

Soil

double. Annual amount of nitrogen fixation by bacteria in soils (ton/yr).

Sd

double. Nitrogen input from scattered dwellings (ton/yr).

Ps

double. Nitrogen input from point sources (ton/yr).

YearlyMass

double. Observed annual total nitrogen load (TN ton/yr) from monitoring station data.

ForestFraction

double. Non-agricultural land cover in the catchment (fraction).

InvNrmRain

double. Inverse of normalized rainfall.