Landscape parameters
| Parameter | Name | Unit | Group | Type | Description |
|---|---|---|---|---|---|
date_start
|
Start Date | N/A | General |
Date(1)
|
A single-value Date vector (or a convertible object).
Defines the starting date of the date interval for the
simulation.
|
date_end
|
End Date | N/A | General |
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 | General |
numeric(1)
|
Seed for random number generation used by the simulation algorithms. |
outflows_df
|
Lake outflows and levels data frame | N/A | Hydrology |
data.frame
|
Time-series dataset that provides the observational hydrological data on
the Albufera lake, along the template of albufera_outflows
(the default value).
|
storage_curve_slope_m2
|
Storage curve slope | m² | Hydrology |
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. |
storage_curve_intercept_m3
|
Storage curve intercept | m³ | Hydrology |
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. |
petp_surface_m2
|
PET surface | m² | Hydrology |
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. |
weather_df
|
Weather data frame | N/A | Meteorology |
data.frame
|
A dataset that provides the relevant metereological time series, along
the template of albufera_weather (the default
value).
|
ideal_flow_rate_cm
|
Ideal flow rate | cm | Environmental properties |
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 of water depth per day. |
height_thresh_cm
|
Cluster Height Threshold | cm | Environmental properties |
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 | Environmental properties |
numeric(1)
|
Constant water depth in ditches. |
covmax
|
Max interception potential | 1 | Environmental properties |
numeric(1)
|
A number between 0 and 1. Maximum potential
fraction of applied chemicals intercepted by foliage at crop
maturation.
|
jgrow
|
Maturation cycle length | day | Environmental properties |
numeric(1)
|
A positive integer. Length (in days) of crop maturation cycle in rice paddies. |
dact_m
|
Depth of active sediment | m | Environmental properties |
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. |
css_ppm
|
Suspended solid concentration | ppm | Environmental properties |
numeric(1)
|
A positive number. Concentration of water suspended solids, expressed in parts per million. |
foc_ss
|
Fraction of organic content in suspended solid | 1 | Environmental properties |
numeric(1)
|
A number between 0 and 1. Fraction of organic
matter content within suspended solids.
|
foc_sed
|
Fraction of organic content in sediment | 1 | Environmental properties |
numeric(1)
|
A number between 0 and 1. Fraction of organic
matter content within sediment.
|
bd_g_cm3
|
Bulk density of sediment | g·cm⁻² | Environmental properties |
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. |
qseep_m_day
|
Seepage rate | m·day⁻¹ | Environmental properties |
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. |
porosity
|
Porosity | 1 | Environmental properties |
numeric(1)
|
A number between 0 and 1. The fraction of the
total sediment volume that is occupied by pore spaces.
|
rfms_map
|
Map of rice field management systems | N/A | Agrochemical management |
erahumed_rfms_map
|
An object of class rfms_map that defines how different rice
field management systems (RFMSs) are assigned to spatial clusters within
the simulation. This object also encapsulates the full set of
user-defined agrochemical configurations, including custom chemicals and
RFMSs, and serves as the main interface for scenario customization. See
rfms for an overview of RFMS definitions and customization
options.
|
Chemical parameters
| Parameter | Name | Unit | Group | Type | Description |
|---|---|---|---|---|---|
display_name
|
Chemical display name | N/A | Chemical identity |
character(1)
|
The common name of the chemical (e.g., “Acetamiprid”). |
tmoa_id
|
Toxic mode of action ID | N/A | Chemical identity |
character(1)
|
Identifier for the toxic mode of action (e.g., “NicotinicAcetylcholine”). |
MW
|
Molecular weight | g/mol | Physicochemical properties |
numeric(1)
|
Molecular weight in grams per mole. |
ksetl_m_day
|
Settling rate | m/day | Transport parameters |
numeric(1)
|
Settling rate, representing particle-bound transfer to sediment. |
sol_ppm
|
Solubility | ppm | Physicochemical properties |
numeric(1)
|
Water solubility. |
koc_cm3_g
|
Koc | cm ³ /g | Sorption |
numeric(1)
|
Organic carbon-water partition coefficient (Koc). |
fet_cm
|
Foliar extraction term | 1/cm | Transport parameters |
numeric(1)
|
Fraction of pesticide washed off from foliage per cm of rainfall. |
kf_day
|
Foliage degradation rate | 1/day | Degradation |
numeric(1)
|
Degradation rate in foliage. |
kw_day
|
Water column degradation rate | 1/day | Degradation |
numeric(1)
|
Degradation rate in the water column. |
ks_sat_day
|
Saturated sediment degradation rate | 1/day | Degradation |
numeric(1)
|
Degradation rate in saturated sediment. |
ks_unsat_day
|
Unsaturated sediment degradation rate | 1/day | Degradation |
numeric(1)
|
Degradation rate in unsaturated sediment. |
kw_temp
|
Water degradation reference temp. | ° C | Degradation |
numeric(1)
|
Reference temperature for kw_day. |
ks_sat_temp
|
Sat. sediment degradation ref. temp. | ° C | Degradation |
numeric(1)
|
Reference temperature for ks_sat_day. |
ks_unsat_temp
|
Unsat. sediment degradation ref. temp. | ° C | Degradation |
numeric(1)
|
Reference temperature for ks_unsat_day. |
Q10_kw
|
Q10 for water degradation | N/A | Degradation |
numeric(1)
|
Q10 coefficient for temperature correction of degradation in water. |
Q10_ks_sat
|
Q10 for sat. sediment degradation | N/A | Degradation |
numeric(1)
|
Q10 coefficient for temperature correction in saturated sediment. |
Q10_ks_unsat
|
Q10 for unsat. sediment degradation | N/A | Degradation |
numeric(1)
|
Q10 coefficient for temperature correction in unsaturated sediment. |
ssd_acute_mu
|
SSD acute mean (log10) | N/A | Toxicity |
numeric(1)
|
Mean (log10 scale) of the acute species sensitivity distribution. |
ssd_acute_sigma
|
SSD acute std. deviation (log10) | N/A | Toxicity |
numeric(1)
|
Standard deviation (log10 scale) of the acute species sensitivity distribution. |
ssd_chronic_mu
|
SSD chronic mean (log10) | N/A | Toxicity |
numeric(1)
|
Mean (log10 scale) of the chronic species sensitivity distribution. |
ssd_chronic_sigma
|
SSD chronic std. deviation (log10) | N/A | Toxicity |
numeric(1)
|
Standard deviation (log10 scale) of the chronic species sensitivity distribution. |
Rice field management system parameters
| Parameter | Name | Unit | Group | Type | Description |
|---|---|---|---|---|---|
sowing_yday
|
Start of sowing season | N/A | Calendar |
integer(1)
|
Day of the year marking the start of the sowing season (1–366, assuming a leap year). |
harvesting_yday
|
End of sowing season | N/A | Calendar |
integer(1)
|
Day of the year marking the end of the sowing season (1–366, assuming a leap year). |
perellona_start_yday
|
Start of Perellona | N/A | Calendar |
integer(1)
|
Day of the year marking the beginning of the Perellona flooding period (after harvest). |
perellona_end_yday
|
End of Perellona | N/A | Calendar |
integer(1)
|
Day of the year marking the end of the Perellona flooding period (before sowing). |
flow_height_cm
|
Target water level (sowing) | cm | Hydrology |
numeric(1)
|
Target water level (in cm) during the regular days of the sowing season, excluding emptying and transition days. |
perellona_height_cm
|
Target water level (Perellona) | cm | Hydrology |
numeric(1)
|
Target water level (in cm) during the Perellona flooding period. |
display_name
|
Display name | N/A | Metadata |
character(1)
|
Name of the management system to be displayed in output plots and summaries. |
Surface allocation parameters
| Parameter | Name | Unit | Group | Type | Description |
|---|---|---|---|---|---|
map
|
Cluster map | N/A | Inputs |
erahumed_rfms_map
|
A cluster map created with new_rfms_map() or
default_rfms_map().
|
system
|
Management system | N/A | Inputs |
erahumed_rfms
|
A management system to assign, created with new_rfms() or
helper functions such as bomba() or
clearfield().
|
target_fraction
|
Target allocation fraction | 1 | Allocation settings |
numeric(1)
|
The fraction of surface area within the selected subset
of clusters (filtered by ditches and
field_type) to allocate to the given system. Must be a
number between 0 and 1.
|
ditches
|
Ditches | N/A | Allocation settings |
integer
|
A vector of ditch IDs (e.g., 1:26) defining the subset of clusters to be considered for allocation. Defaults to all ditches. |
field_type
|
Field type | N/A | Allocation settings |
character(1)
|
Type of field to consider when selecting clusters. Must be one of:
|