🌾 SwaNET Documentation

Real-time Help — 47 Pages

Interface reference for SwaNET, the MAGNET4WATER SWAT-based watershed modeling platform. Each page documents a specific feature, dialog, or data editor.

SwaNET is built on the SWAT (Soil & Water Assessment Tool) engine for watershed-scale hydrologic, nutrient, and sediment simulation. Use the left-side navigation to jump to any page, or filter by keyword.

ℹ️ Note on groundwater: SwaNET includes a simplified lumped-parameter groundwater component used to estimate baseflow. For detailed 3D groundwater modeling (multi-layer heads, flow paths, pumping, transport), use IGW-NET. SwaNET's HRU-level recharge estimates can feed into IGW-NET.

Getting Started

Project setup, data loading, and overview

SwaNET Welcome to the SwaNET modeling platform. SwaNET brings SWAT modeling tool to the web for easier access and better visualization. What is it? Sw

Manual Delineation

Manual Delineation What is it? Manual Delineation Tool allows users to interactively create SWAT projects. Similar to ArcSWAT/QSWAT, users can select

Create SWAT Project

Create SWAT Project Before users can view, edit, save, download, or visualize data, users must first load SWAT project. SwaNET allows users to create

Save/publish What is it? A SwaNET SWAT model can be saved and downloaded as a Json file, or published on the MAGNET4WATER model network and shared. Ho

Spatial Setup

Map tools, projections, DEM, and watershed delineation

Georeferencing Tool

Georeferencing Tool What is it? Georeferencing is the process of adding geographic information to a map. The process involves identifying a set of gro

Upload DEM What is it? To start interctively creating SWAT projects, users need to select a DEM. A DEM is representation of the topographic surface of

Burn-in stream network and selecting DEM threshold

Burn-in stream network and selecting DEM threshold What is it? Burn-in stream network allows users to reduce the DEM elevation along the burn-in lines

Select outlet What is it? Watershed shape depends on the location of the outlet/outlets. Users can select single or multiple outlets. SwaNET allows us

Manage Maps What is it? Manage map options allow users to show/hide maps, change opacity, show/hide markers, and view in 3D. How to use it: Change ove

Manage Overlay Maps

Manage Overlay Maps What is it? Manage overlay options allow users to show/hide maps, change opacity, and show/hide markers. How to use it: Show/hide

Land use update

Land use update What is it? SwaNET allows users to update land use in any HRU. This is particularly useful when the land use changes during the simula

Analyse Land Use Maps

Analyse Land Use Maps What is it? Land use map analysis option processes series of land use maps and creates SWAT input files based on land use change

HRU & Subbasin Configuration

Hydrologic Response Units and subbasin structure

Load landuse and soil map

Load landuse and soil map What is it? SWAT project needs landuse and soil maps to create HRUs. HRUs or hydrologic response units are the units within

Select HRUs What is it? After crating a potential HRU map, user can use different method to choose final HRUs. Users can select single HRU or multiple

Edit HRU Data What is it? This interface allows users to modify HRU data. How to use it: Subbasin number, land use, soil, slope and HRU number of the

Edit Subbasin Data

Edit Subbasin Data What is it? This interface allows users to modify subbasin level data, including elevation bands and weather adjustment. How to use

View/Edit Subbasin Data

View/Edit Subbasin Data What is it? View/Edit Subasin Data interface allows users to view subbasin/HRU information, edit subbasin/HRU level input file

Edit basin data

Edit basin data What is it? This interface is for modifying general watershed attributes related to runoff, water quality and management. For detailed

Edit Routing Data

Edit Routing Data What is it? This interface allows users to update routing and erosion data (.rte files). How to use it: Subbasin number of the curre

Input Data Editing

Climate, soil, groundwater, land management, water use

Edit Weather Data

Edit Weather Data What is it? This interface allows users to update monthly weather statistics that is used to generate simulated daily weather (.wgn

Edit Weather Data

Edit Weather Data What is it? Edit Weather Data interface allows users to import observed weather data to be used by SWAT. Weather data includes obser

Load weather data from MAGNET4WATER data server

Load weather data from MAGNET4WATER data server What is it? SwaNET provides users to select NOAA / PRISM weather data for the US and CFSR data for the

Edit Soil Data What is it? This interface allows users to modify HRU level soil data. How to use it: Subbasin number, land use, soil, slope and HRU nu

Edit Soil Chemical Data

Edit Soil Chemical Data What is it? This interface allows users to modify HRU level soil chemical data. How to use it: Subbasin number, land use, soil

Edit Groundwater Data

Edit Groundwater Data What is it? This interface allows users to modify HRU level groundwater parameters. How to use it: Subbasin number, land use, so

Edit Management Data

Edit Management Data What is it? This interface allows users to modify HRU level general management and management operation data. How to use it: Subb

Edit Operation Data

Edit Operation Data What is it? This interface allows users to modify HRU level scheduled management operation data (.ops). These management operation

Edit Water Use Data

Edit Water Use Data What is it? This interface allows users to designate amount of water removed for consumptive use. The consumpting use can be for i

Edit Low Impact Development Data

Edit Low Impact Development Data What is it? This interface allows users to update low impact development (LID) parameters (.lid files). Available LID

Water Quality & Loading

Point sources, stream/watershed water quality, LOADEST tools

Edit point sources

Edit point sources What is it? This interface allows users to update/enter point source inputs. Please note that point sources need to be added to the

Edit Septic Data

Edit Septic Data What is it? This interface allows users to modify HRU level onsite wastewater systems data. How to use it: Subbasin number, land use,

Edit Stream Water Quality Data

Edit Stream Water Quality Data What is it? This interface allows users to update stream water quality parameters (.swq files). How to use it: Subbasin

Edit watershed level water quality parameters

Edit watershed level water quality parameters What is it? SWAT is able to model in-stream water quality process for nutrients, organic chemicals, heav

SwaNET LOADEST Tool-Calibration Options

SwaNET LOADEST Tool-Calibration Options What is it? SwaNET LOADEST tool is the integration of the LOAD ESTimator (LOADEST) program developed by United

SwaNET LOADEST Tool-Prediction Options

SwaNET LOADEST Tool-Prediction Options What is it? This prediction option tool is the continuation of the SwaNET LOADEST tool. How to use it: Predicti

Hydraulic Structures

Ponds, reservoirs, and storage

Edit Pond Data What is it? This interface allows users to update pond data parameters (.pnd files). How to use it: Subbasin number of the current pond

Edit reservoir data

Edit reservoir data What is it? This interface allows users to update/enter reservoir inputs. Please note that reservoirs need to be added to the subb

Simulation & Calibration

Running models, auto-calibration, validation

Edit SWAT Data What is it? Edit SWAT Data interface allows users to edit SWAT input files. These input files include HRU level input files, subbasin l

Simulation Options

Simulation Options What is it? Simulation Options allows users to run SWAT simulation for the desired time period. Users can select either daily or mo

Write SWAT input files

Write SWAT input files What is it? Final step in creating SWAT project is to write SWAT input files. In this step, users can select weather generator

Auto Calibration

Auto Calibration What is it? Auto calibration is used to calibrate and validate SWAT model outputs. The auto calibration tool uses Non-Dominated Sorti

View Auto calibration results

View Auto calibration results What is it? SWAT auto-calibration results window allows users to view the results, plot results from multiple runs, view

Calibration helper

Calibration helper What is it? Calibration helper allows users to calibrate and validate SWAT model outputs. User can upload observed streamflow data

Results & Visualization

Plots, 3D views, Sankey diagrams

Result Visualization

Result Visualization What is it? Result Visualization interface allows users have more control over how figures are created and displayed. Users can c

Sankey Diagram What is it? Sankey diagrams provide a powerful visual representation of the water balance in SWAT outputs, illustrating the flow magnit

View Maps in 3D

View Maps in 3D What is it? SwaNET 3D view allows users to view the SWAT models in 3D. Users have the option to change base map and overlay maps. The

View Maps in 3D

View Maps in 3D What is it? SwaNET 3D view allows users to view the SWAT models in 3D. Users have the option to change base map and overlay maps. The