Unit Hydrograph Group Data Fields (SWMM)
A Unit Hydrograph Group in a SWMM network is used to associate all unit hydrographs in the group to a rain gage.
Information relating to a unit hydrograph group can be viewed and edited on the Unit Hydrograph Group Grid Window of the Nodes Grid or on the Unit Hydrograph Group Property Sheet.
The table below describes all the data which can be used to define a unit hydrograph group.
Common Data Fields Fields that are common to the majority of objects can be found in the Common Fields topic.
Unit Hydrograph Group Data
Database Table Name: sw_unit_hydrograph_group
|
Field Name |
Help Text |
Database Field |
Size |
Precision |
Default |
Error Lower Limit |
Error Upper Limit |
Warning Lower Limit |
Warning Upper Limit |
||
|---|---|---|---|---|---|---|---|---|---|---|---|
| UH group ID | A unique name for the group up to 254 letters, numbers and underscore characters. Upper and lower case letters are treated as being the same. | id | Text | 254 | 0 | ||||||
| Rain gage |
The name of the rain gage that supplies rainfall data to the unit hydrographs in the group. Any rain gages already defined can be selected from the dropdown list. |
raingage_id | Text | 254 | 0 | ||||||
| All months unit hydrograph |
A read-only field which displays the name* of the unit hydrograph defined for all months in a year which is assigned to this group. This field is empty if no unit hydrograph was defined for all the months in a year. Selecting the |
uh_all | Text | 254 | 0 | ||||||
| January unit hydrograph |
A read-only field which displays the name* of the unit hydrograph defined for January which is assigned to this group. This field is empty if no unit hydrograph was defined for this month. Selecting the |
uh_jan | Text | 254 | 0 | ||||||
| February unit hydrograph |
A read-only field which displays the name* of the unit hydrograph defined for February which is assigned to this group. This field is empty if no unit hydrograph was defined for this month. Selecting the |
uh_feb | Text | 254 | 0 | ||||||
| March unit hydrograph |
A read-only field which displays the name* of the unit hydrograph defined for March. This field is empty if no unit hydrograph was defined for this month. Selecting the |
uh_mar | Text | 254 | 0 | ||||||
| April unit hydrograph |
A read-only field which displays the name* of the unit hydrograph defined for April. This field is empty if no unit hydrograph was defined for this month. Selecting the |
uh_apr | Text | 254 | 0 | ||||||
| May unit hydrograph |
A read-only field which displays the name* of the unit hydrograph defined for May which is assigned to this group. This field is empty if no unit hydrograph was defined for this month. Selecting the |
uh_may | Text | 254 | 0 | ||||||
| June unit hydrograph |
A read-only field which displays the name* of the unit hydrographh defined for June which is assigned to this group. This field is empty if no unit hydrograph was defined for this month. Selecting the |
uh_jun | Text | 254 | 0 | ||||||
| July unit hydrograph |
A read-only field which displays the name* of the unit hydrograph defined for July which is assigned to this group. This field is empty if no unit hydrograph was defined for this month. Selecting the |
uh_jul | Text | 254 | 0 | ||||||
| August unit hydrograph |
A read-only field which displays the name* of the unit hydrograph defined for August which is assigned to this group. This field is empty if no unit hydrograph was defined for this month. Selecting the |
uh_aug | Text | 254 | 0 | ||||||
| September unit hydrograph |
A read-only field which displays the name* of the unit hydrograph defined for September which is assigned to this group. This field is empty if no unit hydrograph was defined for this month. Selecting the |
uh_sep | Text | 254 | 0 | ||||||
| October unit hydrograph |
A read-only field which displays the name* of the unit hydrograph defined for October which is assigned to this group. This field is empty if no unit hydrograph was defined for this month. Selecting the |
uh_oct | Text | 254 | 0 | ||||||
| November unit hydrograph |
A read-only field which displays the name* of the unit hydrograph defined for November which is assigned to this group. This field is empty if no unit hydrograph was defined for this month. Selecting the |
uh_nov | Text | 254 | 0 | ||||||
| December unit hydrograph |
A read-only field which displays the name* of the unit hydrograph defined for December which is assigned to this group. This field is empty if no unit hydrograph was defined for this month. Selecting the |
uh_dec | Text | 254 | 0 |
button located to the left of the field displays an option to open the unit hydrograph defined for all the months in a *The name is derived from the unit hydrograph properties and takes the form UH group.Month where UH group is the name of the unit hydrograph group and month is the month (January - December, or All) that this unit hydrograph applies to.
