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| The [[Water_Overlay|water overlay's]] model calculations depend on a number of calculation-wide parameters. These parameters are available as attributes of the water overlay and can be modified as such. | | {{Overlay attribute |
| | |attribute=[[Breach_height_(Water_Overlay)|BREACH_HEIGHT]] |
| | |unit={{mdatum}} |
| | |description=The new [[terrain height (Water Overlay)|terrain height]] at the location of the breach. |
| | |defaultvalue=n/a |
| | |icon=[[File:waterwizard_icon_breach_height.png]] |
| | }} |
| | ==Notes== |
| | * The Breach height attribute can be defined as values over time, using an [[attribute array]]. This allows users to more dynamically define the height used in the [[Breach_flow_formula_(Water_Overlay)|Breach flow formula]]. |
| | * The initial surface height at the breach (both active and inactive) cells are lowered to the lowest value of the defined breach height array. |
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|
| {| class="wikitable"
| | ==See also== |
| ! Icon
| | *[[Breach_growth_formula_(Water_Overlay)|Breach growth formula]] |
| ! Attribute
| | {{WaterOverlay hydrological features nav}} |
| ! Unit
| |
| ! Description
| |
| |-
| |
| |[[File:waterwizard_icon_allowed_water_increase.png]]
| |
| |{{anchor|ALLOWED_WATER_INCREASE_M|[[Allowed_water_increase_m_(Water_Overlay)|ALLOWED_WATER_INCREASE_M]]}}
| |
| |m
| |
| |The amount by which the water level on a water terrain must increase before it is considered stressed by water. This is used to compute the {{inlink|WATER_STRESS}} result type.
| |
| |-
| |
| |
| |
| |{{anchor|DESIGN_FLOOD_ELEVATION_M|[[Design_flood_elevation_m_(Water_Overlay)|DESIGN_FLOOD_ELEVATION_M]]}}
| |
| |m
| |
| |Constructions in the 3D world are assumed to have at most this height compared to the surface of the terrain. Greater values can create a more accurate model but will impact performance.
| |
| |-
| |
| |
| |
| |{{anchor|GRAVITY|[[Gravity_(Water_Overlay)|GRAVITY]]}}
| |
| |m/s²
| |
| |Used constant for gravitational acceleration
| |
| |-
| |
| |
| |
| |{{anchor|GROUND_BOTTOM_DISTANCE_M|[[Ground_bottom_distance_m_(Water_Overlay)|GROUND_BOTTOM_DISTANCE_M]]}}
| |
| |m
| |
| |Assumed distance under the terrain surface where the soil becomes impenetrable for water. The groundwater level cannot go below this depth, relative to the surface. The maximum amount of water that can be stored underground is equal to this attribute multiplied by the local terrain's [[Terrain water storage percentage (Water Overlay)|WATER_STORAGE_PERCENTAGE]]
| |
| |-
| |
| |
| |
| |{{anchor|GROUND_WATER|[[Ground_water_(Water_Overlay)|GROUND_WATER]]}}
| |
| |boolean
| |
| |Whether [[Underground model (Water Overlay)|underground water flow]] is simulated during the calculation. If this is deactivated, surface infiltration, underground infiltration, and [[Evaporation model (Water Overlay)|underground evaporation]] do not occur. Water flowing [[Sewer model (Water Overlay)|in- and out of the sewer]] are still simulated when sewers are present.
| |
| |-
| |
| |[[File:waterwizard_icon_allowed_water_increase.png]]
| |
| |{{anchor|IMPACT_FLOOD_THRESHOLD_M|[[Impact_flood_threshold_m_(Water_Overlay)|IMPACT_FLOOD_THRESHOLD_M]]}}
| |
| |m
| |
| |The amount of water a construction must experience before it is considered impacted by water. Water must reach this height either on one of the cells the construction is on, or on one of the cells adjacent to it. This is used to compute the [[IMPACTED BUILDINGS]] result type.
| |
| |-
| |
| |
| |
| |{{anchor|LIMIT_RAIN|[[Limit_rain_(Water_Overlay)|LIMIT_RAIN]]}}
| |
| |{{boolean}}
| |
| |Whether rainfall locations should be limited to water level areas (1) or everywhere (0).
| |
| |-
| |
| |
| |
| |{{anchor|MAX_WATER_DEPTH_M|[[Max_water_depth_(Water_Overlay)|MAX_WATER_DEPTH_M]]}}
| |
| |m
| |
| |
| |
| |-
| |
| |
| |
| |{{anchor|MIN_SLOPE|[[Min_slope_(Water_Overlay)|MIN_SLOPE]]}}
| |
| |ratio
| |
| |The minimum slope required to account for the effect of gravity on the speed of the water. If the slope of the terrain is less than the minimum slope, the effect of gravity on the speed of the water is assumed to be 0. The ratio is the height over distance.
| |
| |-
| |
| |
| |
| |{{anchor|QUAD_CELL|[[Quad_cell_(Water_Overlay)|QUAD_CELL]]}}
| |
| |boolean
| |
| |This attribute name is reserved for future functionality. Currently, this marks an experimental feature which is currently under development and may result in unexpected behavior when activated.
| |
| |-
| |
| |
| |
| |{{anchor|SEWER_OVERFLOW_THRESHOLD|[[Sewer_overflow_threshold_(Water_Overlay)|SEWER_OVERFLOW_THRESHOLD]]}}
| |
| |fraction
| |
| |How much of a sewer's storage must be filled with water before the {{inlink|Sewer overflow|sewer's overflows}} are allowed to overflow water.
| |
| |-
| |
| |[[File:waterwizard_icon_allowed_water_increase.png]]
| |
| |{{anchor|SHOW_DURATION_FLOOD_LEVEL_M|[[Show_duration_flood_level_m_(Water_Overlay)|SHOW_DURATION_FLOOD_LEVEL_M]]}}
| |
| |m
| |
| |The amount of water which must be present in a specific location before the duration of surface water can be recorded. This is used to compute the {{inlink|SURFACE_DURATION}} result type.
| |
| |-
| |
| |
| |
| |{{anchor|SURFACE_WATER_EVAPORATION_FACTOR|[[Surface_water_evaporation_factor_(Water_Overlay)|SURFACE_WATER_EVAPORATION_FACTOR]]}}
| |
| |factor
| |
| |The factor by which the {{inlink|lcase=1|Weather}}'s evaporation factor is multiplied to compute the amount of {{inlink|Evaporation model|evaporation}} which takes place on the surface.
| |
| |-
| |
| |
| |
| |{{anchor|TIMEFRAMES|[[Timeframes_(Water_Overlay)|TIMEFRAMES]]}}
| |
| |integer
| |
| |The number of intermediate results recorded during the calculation. Each {{inlink|Timeframes|timeframe}} becomes a snapshot of data which can be viewed and analysed. The total simulation time is divided by this value, and at each interval of that period of time a snapshot of the results so far is made. Note that the first timeframe does not contain the starting conditions of the simulation, but the state of the simulation after the first period of time has passed.
| |
| |-
| |
| |
| |
| |{{anchor|WALL_ANGLE|[[Wall_angle_(Water_Overlay)|WALL_ANGLE]]}}
| |
| |degrees
| |
| |The minimal angle for a slope to be considered a wall. Cells that have a wall behavior will slow down and reflect the water's movement considerably. The x- and y-direction are handled separately.
| |
| |}
| |
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| {{WaterOverlay_model_attribute_nav}}
| |
| [[Category:Water Module]]
| |
| {{Water Module buttons}} | | {{Water Module buttons}} |
