WMS:Hydrograph Files: Difference between revisions
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|+ align="bottom"|''Figure 1. Hydrograph File Format | |+ align="bottom"|''Figure 1. Hydrograph File Format'' | ||
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|HYDROGRAPH | |HYDROGRAPH | ||
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|+ align="bottom"|''Figure 2. Sample Hydrograph File | |+ align="bottom"|''Figure 2. Sample Hydrograph File'' | ||
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|HYDROGRAPH | |HYDROGRAPH | ||
Revision as of 15:54, 24 February 2016
When running HEC-1, WMS reads the TAPE22 hydrograph results file. However, it is convenient to read measured hydrographs for comparison with computed hydrographs, therefore a simplified hydrograph file format can be used. The format is shown in Figure 1, with a sample file given in Figure 2.
| HYDROGRAPH |
| name starttime interval numordinates |
| flow-1 flow-2 flow-3 ... flow-10 |
| ... |
| ... |
| ... |
| flow-n |
| HYDROGRAPH |
| B1 0 30 25 |
| 0.0 0.4 0.9 1.5 2.2 3.0 3.9 4.9 6.0 7.2 |
| 9.5 12.8 16.0 15.2 14.1 10.2 9.0 7.5 5.8 4.0 |
| 3.3 2.2 1.0 0.5 0.1 |
| Card Type | HYDROGRAPH | ||
| Description | Defines a set of hydrographs. | ||
| Required | YES | ||
| Format | HYDROGRAPH name starttime interval numordinates flow-1 flow-2 flow-3 ... flow-10 ... ... flow-n | ||
| Sample | HYDROGRAPH B1 730 45 12 8.0 14.0 25.0 40.0 65.0 63.0 55.0 50.0 42.0 30.0 15.0 0.0 B2 730 45 12 10.0 17.0 29.0 45.0 71.0 64.0 53.0 41.0 28.0 15.0 4.0 0.0 | ||
| Field | Variable | Value | Description |
| 1 | name | str | Station (basin or outlet) name (KK in HEC-1). |
| 2 | starttime | + | Military time (0-2400) at the start of the event. |
| 3 | interval | + | Interval in minutes between hydrograph ordinates. |
| 4 | numordinates | + | The number of hydrograph ordinates. |
| 5-n | flow | + | Hydrograph ordinates.Each of fields 1-5+n are repeated for each station in the file. |
The hydrograph file is considered to be free-field when read by WMS so any number of spaces can be used to separated the different parameters. Figure 2 shows a sample file where there are 25 ordinates with a time interval of 30 minutes.
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