RTK Hydrograph Data Fields (InfoWorks)

RTK Hydrograph data can be edited on either the RTK Hydrograph Grid Window of the Subcatchments Grid or the RTK Hydrograph Property Sheet.

All RTK Hydrograph data can be edited on the grid or the property sheet.

This table describes all the data fields used to define a RTK Hydrograph object.

Note

Monthly RTK Hydrograph data can also be specified. Any monthly data (with the same RTK Hydrograph ID) will override the data in RTK Hydrograph object for the specified month.

Common Data Fields

Fields that are common to the majority of objects can be found in the Common Fields topic.

RTK Hydrograph Data

Database Table Name: hw_unit_hydrograph

Show Columns

Database Names

Size, Type and Units

Defaults and Error Limits

Field Name

Help Text

Database Field

Data Type

Size

Units

Precision

Default

Error Lower Limit

Error Upper Limit

Warning Lower Limit

Warning Upper Limit

RTK Hydrograph ID

A unique identifier for the RTK hydrograph. This field is used to associate a RTK hydrograph with a particular subcatchment.

ID

Text

64

 

0

 

 

 

 

 

Response ratio R - short term

Applicable to short-term rainfall response component of hydrograph.

Area under graph representing the proportion of rainfall entering the drainage network.

R1

Double

 

 

3

 

0

1

 

 

Time to peak T - short term

Applicable to short-term rainfall response component of hydrograph.

Time from the onset of rainfall to the peak of the triangle of the graph.

T1

Double

 

RS_HOURS

3

 

0

 

 

 

Recession limb ratio k - short term

Applicable to short-term rainfall response component of hydrograph.

Ratio of 'time to recession' to the 'time to peak' of the graph.

K1

Double

 

 

3

 

0

 

 

 

Response ratio R - medium term

Applicable to medium-term rainfall response component of hydrograph.

Area under graph representing the proportion of rainfall entering the drainage network.

R2

Double

 

 

3

 

0

1

 

 

Time to peak T - medium term

Applicable to medium-term rainfall response component of hydrograph.

Time from the onset of rainfall to the peak of the triangle of the graph.

T2

Double

 

RS_HOURS

3

 

0

 

 

 

Recession limb ratio k - medium term

Applicable to medium-term rainfall response component of hydrograph.

Ratio of 'time to recession' to the 'time to peak' of the graph.

K2

Double

 

 

3

 

0

 

 

 

Response ratio R - long term

Applicable to long-term rainfall response component of hydrograph.

Area under graph representing the proportion of rainfall entering the drainage network.

R3

Double

 

 

3

 

0

1

 

 

Time to peak T - long term

Applicable to long-term rainfall response component of hydrograph.

Time from the onset of rainfall to the peak of the triangle of the graph.

T3

Double

 

RS_HOURS

3

 

0

 

 

 

Recession limb ratio k - long term

Applicable to long-term rainfall response component of hydrograph.

Ratio of 'time to recession' to the 'time to peak' of the graph.

K3

Double

 

 

3

 

0

 

 

 

Max initial abstraction rainfall depth -short term

Maximum initial abstraction rainfall depth for the short-term response.

Dmax1 Double   RD 3   0      
Initial abstraction recovery rate - short term The abstraction recovery rate for the short-term response. Drec1 Double   EV 3   0      
Initial abstraction depth - short term The initial rainfall depth for the short-term response. This value must be less than the specified Max initial abstraction rainfall depth -short term one. D01 Double   RD 3   0      
Max initial abstraction rainfall depth -medium term Maximum initial abstraction rainfall depth for the medium-term response. Dmax2 Double   RD 3   0      
Initial abstraction recovery rate - medium term The abstraction recovery rate for the medium-term response. Drec2 Double   EV 3   0      
Initial abstraction depth - medium term The initial rainfall depth for the medium-term response. This value must be less than the specified Max initial abstraction rainfall depth -medium term one. D02 Double   RD 3   0      
Max initial abstraction rainfall depth -long term Maximum initial abstraction rainfall depth for the long-term response. Dmax3 Double   RD 3   0      
Initial abstraction recovery rate - long term The abstraction recovery rate for the long-term response. Drec3 Double   EV 3   0      
Initial abstraction depth - long term The initial rainfall depth for the long-term response. This value must be less than the specified Max initial abstraction rainfall depth -long term one. D03 Double   RD 3   0      

Subcatchments Grid

Property Sheets