| Category | Constant | Description | Emoji |
|---|---|---|---|
| Analysis Option Keywords | FLOW_UNITS | Flow Units | 💧 |
| INFIL_MODEL | Infiltration Model | 💦 | |
| ROUTE_MODEL | Flow Routing Model | 🌊 | |
| START/END_DATE/TIME | Start and End Date and Time | 📅 | |
| REPORT_START_DATE/TIME | Report Start Date and Time | 📊 | |
| SWEEP_START/END | Sweep Start and End | 🧹 | |
| START_DRY_DAYS | Start Dry Days | 🌵 | |
| WET/DRY_STEP | Wet/Dry Step | ⏱️ | |
| ROUTE/REPORT_STEP | Routing/Report Step | 🔄 | |
| RULE_STEP | Rule Step | ⚖️ | |
| ALLOW_PONDING | Allow Ponding | 💧 | |
| INERT_DAMPING | Inertial Damping | 🔽 | |
| SLOPE_WEIGHTING | Slope Weighting | ⚖️ | |
| VARIABLE_STEP | Variable Step | ⚙️ | |
| NORMAL_FLOW_LTD | Normal Flow Limited | 🚦 | |
| LENGTHENING_STEP | Lengthening Step | ➡️ | |
| MIN_SURFAREA | Minimum Surface Area | 📏 | |
| COMPATIBILITY | Compatibility | 🤝 | |
| SKIP_STEADY_STATE | Skip Steady State | ⏩ | |
| TEMPDIR | Temporary Directory | 📂 | |
| IGNORE_RAINFALL | Ignore Rainfall | ☂️ | |
| FORCE_MAIN_EQN | Force Main Equation | 🔧 | |
| LINK_OFFSETS | Link Offsets | 🔗 | |
| MIN_SLOPE | Minimum Slope | 📐 | |
| IGNORE_SNOWMELT | Ignore Snowmelt | ❄️ | |
| IGNORE_GWATER | Ignore Groundwater | 💦 | |
| IGNORE_ROUTING | Ignore Routing | ➡️ | |
| IGNORE_QUALITY | Ignore Quality | ❌ | |
| MAX_TRIALS | Max Trials | 🔢 | |
| HEAD_TOL | Head Tolerance | 🎯 | |
| SYS_FLOW_TOL | System Flow Tolerance | 🌡️ | |
| LAT_FLOW_TOL | Lateral Flow Tolerance | 🌊 | |
| IGNORE_RDII | Ignore RDII | ❌ | |
| MIN_ROUTE_STEP | Minimum Route Step | ⏱️ | |
| NUM_THREADS | Number of Threads | 🧵 | |
| SURCHARGE_METHOD | Surcharge Method | 🌊 | |
| Flow Units | CFS, GPM, MGD, CMS, LPS, MLD | Flow Units | 💧 |
| Flow Routing Methods | NF, KW, EKW, DW, STEADY, KINWAVE, XKINWAVE, DYNWAVE | Routing Methods | 🌊 |
| Surcharge Methods | EXTRAN, SLOT | Surcharge Methods | 🔝 |
| Infiltration Methods | HORTON, MOD_HORTON, GREEN_AMPT, MOD_GREEN_AMPT, CURVE_NUMEBR | Infiltration | 💧 |
| Normal Flow Criteria | SLOPE, FROUDE, BOTH | Normal Flow Criteria | 📐 |
| Snowmelt Data Keywords | WINDSPEED, SNOWMELT, ADC, PLOWABLE | Snowmelt Data | ❄️ |
| Evaporation Data Options | CONSTANT, TIMESERIES, TEMPERATURE, FILE, RECOVERY, DRYONLY | Evaporation Data | 💨 |
| DWF Time Pattern Types | MONTHLY, DAILY, HOURLY, WEEKEND | DWF Time Patterns | ⏰ |
| Rainfall Record Types | INTENSITY, VOLUME, CUMULATIVE | Rainfall Records | 🌧️ |
| Unit Hydrograph Types | SHORT, MEDIUM, LONG | Hydrograph Types | 🌊 |
| Internal Runoff Routing | OUTLET, IMPERV, PERV | Runoff Routing Options | 🔀 |
| Outfall Node Types | FREE, FIXED, TIDAL, CRITICAL, NORMAL | Outfall Nodes | 🏞️ |
| Flow Divider Node Types | FUNCTIONAL, TABULAR, CUTOFF, OVERFLOW | Flow Dividers | ➗ |
| Storage Node Shapes | CYLINDRICAL, CONICAL, PARABOLOID, PYRAMIDAL | Storage Shapes | 🛢️ |
| Pump Curve Types | TYPE1-5, IDEAL | Pump Curves | 🚰 |
| Pump Curve Variables | VOLUME, DEPTH, HEAD | Pump Variables | 🌊 |
| Orifice Types | SIDE, BOTTOM | Orifice Types | ⚪ |
| Weir Types | TRANSVERSE, SIDEFLOW, V-NOTCH, ROADWAY | Weir Types | 🌊 |
| Conduit Cross-Section Shapes | DUMMY, CIRCULAR, FILLED_CIRCULAR, RECT_CLOSED, RECT_OPEN, TRAPEZOIDAL, TRIANGULAR, PARABOLIC, POWERFUNC, STREET, RECT_TRIANG, RECT_ROUND, MOD_BASKET, HORIZELLIPSE, VERTELLIPSE, ARCH, EGGSHAPED, HORSESHOE, GOTHIC, CATENARY, SEMIELLIPTICAL, BASKETHANDLE, SEMICIRCULAR, IRREGULAR, CUSTOM, FORCE_MAIN, H_W, D_W | Conduit Shapes | 🚇 |
Each row in the table categorizes a constant or a group of constants, provides a brief description, and associates an emoji for a visual representation.
