| Value |
Name parameter |
Meaning, units and what parameter is used for |
|
| bentazon |
Namecomp |
Name compound (40 characters) |
|
| 5 |
Dose |
Dose active ingredient (kg a.i. ha-1) |
The information is transferred from the user interface, but modified according
to the Ka value of the compound so only neutral compound is allowed to evaporate. |
| 1 |
Indicvol |
Indicator volatilisation
1= from crops, 2 = from soil |
If the crop cover is less than 10%, it is assumed that emmission occurs from
the soil. |
| 1 |
Indicdep |
Indicator deposition
1=stream, 2=lake |
The value of this parameter is set as a function of the scenario chosen. |
| 2.e-4 |
Henrygref |
Henry's law coefficient (cg/cw) at reference temperature
(dimensionless)
[volatilisation from soil, surface resistance water] |
The information is transferred from the user interface |
| 298.15 |
TkwHenrygref |
Reference temperature Henry's law coefficient (K)
[volatilisation from soil, surface resistance water] |
The information is transferred from the user interface |
| 1.e-4 |
Vpref |
Vapour pressure at reference temperature (Pa)
[volatilisation from crops] |
The information is transferred from the user interface |
| 293.15 |
TKVpref |
Reference temperature vapour pressure (K)
[volatilisation from crops] |
The information is transferred from the user interface |
| 283.15 |
Tksoil |
Actual temperature soil (K)
[volatilisation from soil] |
The temperature of the topsoil is assumed to be equal to the air temperature. |
| 1400 |
Denssoil |
Dry bulk density of the soil (kg solid/m³ soil)
[volatilisation from soil] |
Calculated as a weighted average of the bulk densities of the topsoils in
the catchment. |
| 4.7 |
Orgmatproc |
Content of organic matter of the soil material (%)
[volatilisation from the soil] |
Calculated as a weighted average of the organic matter content of the topsoils
in the catchment. |
| 20 |
Moistureproc |
Volumetric moisture content of the soil (%)
[volatilisation from soil] |
Calculated as a weighted average of the values of the moisture content in
the catchment at pF2. |
| 2.4e-3 |
Kd |
Soil-liquid partitioning coefficient
(kg kg-1 solid)/(kg m-3 liquid)
[volatilisation from soil] |
The information is transferred from the user interface as an average value
for the topsoils in the catchment. |
| 293.15 |
Tka |
Actual temperature air (K)
[laminar boundary layer resistance] |
The information stem from the time series of temperature for each catchment |
| 224.5 |
Molw |
Molecular weight (g mol-1)
[laminar boundary layer resistance, surface resistance water body] |
The information is transferred from the user interface |
| 294.15 |
TKw |
Temperature of the stream (K)
[surface resistance water body] |
The value stem from MIKE 11 |
| 1.2 |
depthw |
Average depth water (m).
[surface resistance stream] |
The value stem from MIKE 11 |
| 4.47 |
k2_dhi |
Average aeration coefficient stream calculated by DHI (day-1)
[surface resistance stream] |
The value stem from MIKE 11 |
| 100 |
dxemission |
Upwind length of the emission area (m)
[concentration in the air] |
Calculated as described in Section 4.2 |
| 10 |
dxns1 |
Upwind length of the non-spray area before the water body (m)
[concentration in the air] |
The width of the buffer zone is selected as either the value for the particular
stretch of stream or as the buffer zone value given in the interface. |
| 5 |
dxwater |
Upwind length of the water body (m)
[concentration in the air] |
Calculated as half the cross-section of the water body. |
| 5000 |
dywater |
Length of the water body perpendicular to the wind direction (m) |
Calculated as described in Section 4.2 |