|
tides and currents
Supplementary
National Symbols
| NOS/NIMA |
|
| HW |
High water |
| HHW |
Higher high water |
| LW |
Low water |
| LWD |
Low-water datum |
| MTL |
Mean tide level |
| ISLW |
Indian spring low water |
| HWF&C |
High-water full and change (vulgar
establishment of the port) |
| LWF&C |
Low-water full and change |
| CRD |
Columbia River Datum |
| GCLWD |
Gulf Coast Low Water Datum |
| Str |
Stream |
 |
Current, general, with rate |
| vel |
Velocity; Rate |
| Str |
Stream |
| Kn |
Knots |
| ht |
Height |
| fl |
Flood |
| Str |
Stream |
 |
New moon |
 |
Full moon |
 |
Current diagram |
|
