|
Environmental parameters
|
bd_g_cm3
|
Bulk density of sediment
|
g·cm⁻²
|
numeric(1)
|
A positive number. Bulk density of the sediment (including both the
solid material and the pore spaces). Expressed in grams per cubic
centimeter.
|
dact_m
|
Depth of active sediment
|
m
|
numeric(1)
|
A positive number. Active sediment layer depth, where “active”” refers
to the portion of the sediment that is actually involved in chemical
exchange or transport processes. Expressed in meters.
|
foc
|
Fraction of organic content
|
1
|
numeric(1)
|
A number between 0 and 1. Fraction of organic
content within suspended solids and sediments.
|
jgrow
|
Maturation cycle length
|
day
|
numeric(1)
|
A positive integer. Length (in days) of crop maturation cycle in rice
paddies.
|
porosity
|
Porosity
|
1
|
numeric(1)
|
A number between 0 and 1. The fraction of the
total sediment volume that is occupied by pore spaces.
|
qseep_m_day
|
Seepage rate
|
m·day⁻¹
|
numeric(1)
|
A positive number. Seepage rate, i.e. the rate at which water
seeps through the sediment or soil. Expressed in meters per day.
|
css_ppm
|
Suspended solid concentration
|
ppm
|
numeric(1)
|
A positive number. Concentration of suspended solid, expressed in parts
per million.
|
|
General
|
date_end
|
End Date
|
N/A
|
Date(1)
|
A single-value Date vector (or a convertible object).
Defines the ending date of the date interval for the simulation.
|
seed
|
Simulation random seed
|
N/A
|
numeric(1)
|
Seed for random number generation used by the simulation algorithms.
|
date_start
|
Start Date
|
N/A
|
Date(1)
|
A single-value Date vector (or a convertible object).
Defines the starting date of the date interval for the simulation.
|
|
Hydrology
|
height_thresh_cm
|
Cluster Height Threshold
|
cm
|
numeric(1)
|
A positive number. Height threshold for water levels, below which a
cluster is considered to be emptied.
|
ditch_level_m
|
Ditch water level
|
m
|
numeric(1)
|
Constant water depth in ditches.
|
ideal_flow_rate_cm
|
Ideal flow rate
|
cm
|
numeric(1)
|
Ideal inflow/outflow of a cluster, for days in which the cluster is
scheduled to be in flux (i.e. when being simultaneously
irrigated and drained). Expressed in centimeters per day.
|
outflows_df
|
Lake outflows and levels data frame
|
N/A
|
data.frame
|
Time-series dataset that provides the observational hydrological data on
the Albufera lake, along the template of albufera_outflows
(the default value).
|
petp_surface_m2
|
PET surface
|
m²
|
numeric(1)
|
The surface area (in square meters) used to convert precipitation and
evapotranspiration per unit area into volume changes for the Albufera
Lake. The default numeric value was computed by the package authors and
corresponds to the average flooded surface of the Albufera lake and its
irrigation ditches.
|
management_df
|
Rice paddy management data frame
|
N/A
|
data.frame
|
Dataset that provides the yearly schedule for irrigation and draining,
along the template of albufera_management (the default
value).
|
storage_curve_intercept_m3
|
Storage curve intercept
|
m³
|
numeric(1)
|
Intercept of the linear storage curve for the Albufera Lake, expressed
in cubic meters. This value represents the lake’s water volume when the
water level is at sea level. The default numeric values are derived from
the CHJ report
Modelo
de seguimiento de l’Albufera de Valencia con AQUATOOLDMA.
|
storage_curve_slope_m2
|
Storage curve slope
|
m²
|
numeric(1)
|
Slope of the (linear) storage curve of the Albufera Lake, in square
meters. Multiplying this value by the change in the lake’s water level
gives the corresponding change in water volume. The default
numeric values are derived from the CHJ report
Modelo
de seguimiento de l’Albufera de Valencia con AQUATOOLDMA.
|
|
Meteorology
|
weather_df
|
Weather data frame
|
N/A
|
data.frame
|
A dataset that provides the relevant metereological time series, along
the template of albufera_weather (the default value).
|
|
Pesticide application scheme
|
ca_schedules_df
|
Chemical application schedules data frame
|
N/A
|
data.frame
|
A dataset that provides the list of scheduled chemical applications,
along the template of albufera_ca_schedules.
|
drift
|
Drift
|
1
|
numeric(1)
|
A number between 0 and 1. Fraction of applied
chemical lost to drift during application.
|
covmax
|
Max interception potential
|
1
|
numeric(1)
|
A number between 0 and 1. Maximum potential
fraction of applied chemicals intercepted by foliage at crop maturation.
|
variety_prop
|
Rice variety proportion
|
N/A
|
numeric(3)
|
Vector of 3 positive values. Controls the relative
proportions of field surface allocated to the cultivation of the J.
Sendra, Bomba, and Clearfield varieties, respectively.
|