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SWIFT

The Soil and Water Integrated Flow Tool (SWIFT) is an open-source model for rapidly estimating sediment and nutrient loads from small watersheds in the United States. Built upon the foundation of the SWAT+ framework, SWIFT leverages readily available data—such as watershed size, land use, and geographic location—to generate load estimates along with distributions that capture the inherent uncertainties of the estimation process. It employs export coefficients originally derived from the Soil and Water Assessment Tool (SWAT) and incorporates delivery ratios informed by the Conservation Effects and Assessment Project (CEAP). This approach makes SWIFT a practical tool for assessing non-point source pollution, soil erosion prevention, and the broader environmental impacts of land use and management practices.

This repository is based on the original SWAT+ repository and has been updated to incorporate the SWIFT framework. It includes the latest SWIFT source code along with test data to compile and validate the executable across various compilers and platforms.

Repository

Get the SWIFT sources by cloning the forked repository using git.

$ git clone https://github.com/<user>/swift.git

Or, download the sources directly from the artifacts, unzip. Use a tagged version (preferred).

$ wget https://github.com/tugraskan/SWIFT/archive/refs/tags/61.0.zip

Directory Structure

The directory structure is shown below. The build directory gets created and populated during the generation of the cmake files and the cmake build.

swift
├── build
│ ├── ...
│ ├── *.mod
│ ├── Testing
│ └── CMakeFiles
│ ├── Makefile.cmake
│ ├── ...
│ └── swift-<ver>.dir
│ ├── *.mod.tstamp
│ ├── src
│ └── ...
├── data ---> contains all data sets for testing
│ ├── Ames_sub1
│ ├── <other>
│ └── ...
├── src ---> contains all swift Fortran source files
│ └── *.f90
├── test ---> contains all unit tests sources
│ ├── check.py
│ └── ...
├── doc ---> contains all hosted documentation
├── CMakeLists.txt ---> cmake project file
├── ford.md.in ---> FORD Documentation creation project
├── README.md ---> this file
└── ...

Developing SWIFT

This GitHub repository is setup to build, test, and deploy SWIFT using the CMake tool. CMake is a cross-platform build tool that can be used at the command line but it is also supported through various IDEs, etc. More information can be found at http://cmake.org.

In addition to CMake, the following tools are also needed:

  • git tool for version control
  • make tool (for building)
  • gfortran or ifort/ifx compiler and linker (for compiling/linking)
  • python3 (for testing, optional)
  • ford (for documentation generation)

Use the operating system's preferred way of adding those tools to your installation. There is certainly more than one way of getting and installing them.

The following sections are emphasizing various development aspects.

Documentation and References

SWIFT Source Documentation on GitHub

! Planned SWIFT Input/Output Documentation on Gitbook

SWIFT at TAMU

About

No description, website, or topics provided.

Resources

Readme
LGPL-2.1 license

Code of conduct

Code of conduct
Activity
Custom properties

Stars

0 stars

Watchers

1 watching

Forks

0 forks
Report repository

Releases

Packages

Used by

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

Skip to content
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Release
SWIFT
The Soil and Water Integrated Flow Tool (SWIFT) is an open-source model for rapidly estimating sediment and nutrient loads from small watersheds in the United States. Built upon the foundation of the SWAT+ framework, SWIFT leverages readily available data—such as watershed size, land use, and geographic location—to generate load estimates along with distributions that capture the inherent uncertainties of the estimation process. It employs export coefficients originally derived from the Soil and Water Assessment Tool (SWAT) and incorporates delivery ratios informed by the Conservation Effects and Assessment Project (CEAP). This approach makes SWIFT a practical tool for assessing non-point source pollution, soil erosion prevention, and the broader environmental impacts of land use and management practices.
This repository is based on the original SWAT+ repository and has been updated to incorporate the SWIFT framework. It includes the latest SWIFT source code along with test data to compile and validate the executable across various compilers and platforms.
Repository
Get the SWIFT sources by cloning the forked repository using git.
$ git clone https://github.com/<user>/swift.git
Or, download the sources directly from the artifacts, unzip. Use a tagged version (preferred).
$ wget https://github.com/tugraskan/SWIFT/archive/refs/tags/61.0.zip
Directory Structure
The directory structure is shown below. The build directory gets created and populated during the generation of the cmake files and the cmake build.
swift
├── build
│ ├── ...
│ ├── *.mod
│ ├── Testing
│ └── CMakeFiles
│ ├── Makefile.cmake
│ ├── ...
│ └── swift-<ver>.dir
│ ├── *.mod.tstamp
│ ├── src
│ └── ...
├── data ---> contains all data sets for testing
│ ├── Ames_sub1
│ ├── <other>
│ └── ...
├── src ---> contains all swift Fortran source files
│ └── *.f90
├── test ---> contains all unit tests sources
│ ├── check.py
│ └── ...
├── doc ---> contains all hosted documentation
├── CMakeLists.txt ---> cmake project file
├── ford.md.in ---> FORD Documentation creation project
├── README.md ---> this file
└── ...

Developing SWIFT
This GitHub repository is setup to build, test, and deploy SWIFT using the CMake tool. CMake is a cross-platform build tool that can be used at the command line but it is also supported through various IDEs, etc. More information can be found at http://cmake.org.
In addition to CMake, the following tools are also needed:
  • git tool for version control
  • make tool (for building)
  • gfortran or ifort/ifx compiler and linker (for compiling/linking)
  • python3 (for testing, optional)
  • ford (for documentation generation)
Use the operating system's preferred way of adding those tools to your installation. There is certainly more than one way of getting and installing them.
The following sections are emphasizing various development aspects.
Documentation and References
SWIFT Source Documentation on GitHub
! Planned SWIFT Input/Output Documentation on Gitbook
SWIFT at TAMU
About
No description, website, or topics provided.
Resources
Readme
LGPL-2.1 license
Code of conduct
Code of conduct
Activity
Custom properties
Stars
0 stars
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
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Release
SWIFT
The Soil and Water Integrated Flow Tool (SWIFT) is an open-source model for rapidly estimating sediment and nutrient loads from small watersheds in the United States. Built upon the foundation of the SWAT+ framework, SWIFT leverages readily available data—such as watershed size, land use, and geographic location—to generate load estimates along with distributions that capture the inherent uncertainties of the estimation process. It employs export coefficients originally derived from the Soil and Water Assessment Tool (SWAT) and incorporates delivery ratios informed by the Conservation Effects and Assessment Project (CEAP). This approach makes SWIFT a practical tool for assessing non-point source pollution, soil erosion prevention, and the broader environmental impacts of land use and management practices.
This repository is based on the original SWAT+ repository and has been updated to incorporate the SWIFT framework. It includes the latest SWIFT source code along with test data to compile and validate the executable across various compilers and platforms.
Repository
Get the SWIFT sources by cloning the forked repository using git.
$ git clone https://github.com/<user>/swift.git
Or, download the sources directly from the artifacts, unzip. Use a tagged version (preferred).
$ wget https://github.com/tugraskan/SWIFT/archive/refs/tags/61.0.zip
Directory Structure
The directory structure is shown below. The build directory gets created and populated during the generation of the cmake files and the cmake build.
swift
├── build
│ ├── ...
│ ├── *.mod
│ ├── Testing
│ └── CMakeFiles
│ ├── Makefile.cmake
│ ├── ...
│ └── swift-<ver>.dir
│ ├── *.mod.tstamp
│ ├── src
│ └── ...
├── data ---> contains all data sets for testing
│ ├── Ames_sub1
│ ├── <other>
│ └── ...
├── src ---> contains all swift Fortran source files
│ └── *.f90
├── test ---> contains all unit tests sources
│ ├── check.py
│ └── ...
├── doc ---> contains all hosted documentation
├── CMakeLists.txt ---> cmake project file
├── ford.md.in ---> FORD Documentation creation project
├── README.md ---> this file
└── ...

Developing SWIFT
This GitHub repository is setup to build, test, and deploy SWIFT using the CMake tool. CMake is a cross-platform build tool that can be used at the command line but it is also supported through various IDEs, etc. More information can be found at http://cmake.org.
In addition to CMake, the following tools are also needed:
  • git tool for version control
  • make tool (for building)
  • gfortran or ifort/ifx compiler and linker (for compiling/linking)
  • python3 (for testing, optional)
  • ford (for documentation generation)
Use the operating system's preferred way of adding those tools to your installation. There is certainly more than one way of getting and installing them.
The following sections are emphasizing various development aspects.
Documentation and References
SWIFT Source Documentation on GitHub
! Planned SWIFT Input/Output Documentation on Gitbook
SWIFT at TAMU
About
No description, website, or topics provided.
Resources
Readme
LGPL-2.1 license
Code of conduct
Code of conduct
Activity
Custom properties
Stars
0 stars
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
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Release
SWIFT
The Soil and Water Integrated Flow Tool (SWIFT) is an open-source model for rapidly estimating sediment and nutrient loads from small watersheds in the United States. Built upon the foundation of the SWAT+ framework, SWIFT leverages readily available data—such as watershed size, land use, and geographic location—to generate load estimates along with distributions that capture the inherent uncertainties of the estimation process. It employs export coefficients originally derived from the Soil and Water Assessment Tool (SWAT) and incorporates delivery ratios informed by the Conservation Effects and Assessment Project (CEAP). This approach makes SWIFT a practical tool for assessing non-point source pollution, soil erosion prevention, and the broader environmental impacts of land use and management practices.
This repository is based on the original SWAT+ repository and has been updated to incorporate the SWIFT framework. It includes the latest SWIFT source code along with test data to compile and validate the executable across various compilers and platforms.
Repository
Get the SWIFT sources by cloning the forked repository using git.
$ git clone https://github.com/<user>/swift.git
Or, download the sources directly from the artifacts, unzip. Use a tagged version (preferred).
$ wget https://github.com/tugraskan/SWIFT/archive/refs/tags/61.0.zip
Directory Structure
The directory structure is shown below. The build directory gets created and populated during the generation of the cmake files and the cmake build.
swift
├── build
│ ├── ...
│ ├── *.mod
│ ├── Testing
│ └── CMakeFiles
│ ├── Makefile.cmake
│ ├── ...
│ └── swift-<ver>.dir
│ ├── *.mod.tstamp
│ ├── src
│ └── ...
├── data ---> contains all data sets for testing
│ ├── Ames_sub1
│ ├── <other>
│ └── ...
├── src ---> contains all swift Fortran source files
│ └── *.f90
├── test ---> contains all unit tests sources
│ ├── check.py
│ └── ...
├── doc ---> contains all hosted documentation
├── CMakeLists.txt ---> cmake project file
├── ford.md.in ---> FORD Documentation creation project
├── README.md ---> this file
└── ...

Developing SWIFT
This GitHub repository is setup to build, test, and deploy SWIFT using the CMake tool. CMake is a cross-platform build tool that can be used at the command line but it is also supported through various IDEs, etc. More information can be found at http://cmake.org.
In addition to CMake, the following tools are also needed:
  • git tool for version control
  • make tool (for building)
  • gfortran or ifort/ifx compiler and linker (for compiling/linking)
  • python3 (for testing, optional)
  • ford (for documentation generation)
Use the operating system's preferred way of adding those tools to your installation. There is certainly more than one way of getting and installing them.
The following sections are emphasizing various development aspects.
Documentation and References
SWIFT Source Documentation on GitHub
! Planned SWIFT Input/Output Documentation on Gitbook
SWIFT at TAMU
About
No description, website, or topics provided.
Resources
Readme
LGPL-2.1 license
Code of conduct
Code of conduct
Activity
Custom properties
Stars
0 stars
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

Skip to content
BranchesTags
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Release
SWIFT
The Soil and Water Integrated Flow Tool (SWIFT) is an open-source model for rapidly estimating sediment and nutrient loads from small watersheds in the United States. Built upon the foundation of the SWAT+ framework, SWIFT leverages readily available data—such as watershed size, land use, and geographic location—to generate load estimates along with distributions that capture the inherent uncertainties of the estimation process. It employs export coefficients originally derived from the Soil and Water Assessment Tool (SWAT) and incorporates delivery ratios informed by the Conservation Effects and Assessment Project (CEAP). This approach makes SWIFT a practical tool for assessing non-point source pollution, soil erosion prevention, and the broader environmental impacts of land use and management practices.
This repository is based on the original SWAT+ repository and has been updated to incorporate the SWIFT framework. It includes the latest SWIFT source code along with test data to compile and validate the executable across various compilers and platforms.
Repository
Get the SWIFT sources by cloning the forked repository using git.
$ git clone https://github.com/<user>/swift.git
Or, download the sources directly from the artifacts, unzip. Use a tagged version (preferred).
$ wget https://github.com/tugraskan/SWIFT/archive/refs/tags/61.0.zip
Directory Structure
The directory structure is shown below. The build directory gets created and populated during the generation of the cmake files and the cmake build.
swift
├── build
│ ├── ...
│ ├── *.mod
│ ├── Testing
│ └── CMakeFiles
│ ├── Makefile.cmake
│ ├── ...
│ └── swift-<ver>.dir
│ ├── *.mod.tstamp
│ ├── src
│ └── ...
├── data ---> contains all data sets for testing
│ ├── Ames_sub1
│ ├── <other>
│ └── ...
├── src ---> contains all swift Fortran source files
│ └── *.f90
├── test ---> contains all unit tests sources
│ ├── check.py
│ └── ...
├── doc ---> contains all hosted documentation
├── CMakeLists.txt ---> cmake project file
├── ford.md.in ---> FORD Documentation creation project
├── README.md ---> this file
└── ...

Developing SWIFT
This GitHub repository is setup to build, test, and deploy SWIFT using the CMake tool. CMake is a cross-platform build tool that can be used at the command line but it is also supported through various IDEs, etc. More information can be found at http://cmake.org.
In addition to CMake, the following tools are also needed:
  • git tool for version control
  • make tool (for building)
  • gfortran or ifort/ifx compiler and linker (for compiling/linking)
  • python3 (for testing, optional)
  • ford (for documentation generation)
Use the operating system's preferred way of adding those tools to your installation. There is certainly more than one way of getting and installing them.
The following sections are emphasizing various development aspects.
Documentation and References
SWIFT Source Documentation on GitHub
! Planned SWIFT Input/Output Documentation on Gitbook
SWIFT at TAMU
About
No description, website, or topics provided.
Resources
Readme
LGPL-2.1 license
Code of conduct
Code of conduct
Activity
Custom properties
Stars
0 stars
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
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Release
SWIFT
The Soil and Water Integrated Flow Tool (SWIFT) is an open-source model for rapidly estimating sediment and nutrient loads from small watersheds in the United States. Built upon the foundation of the SWAT+ framework, SWIFT leverages readily available data—such as watershed size, land use, and geographic location—to generate load estimates along with distributions that capture the inherent uncertainties of the estimation process. It employs export coefficients originally derived from the Soil and Water Assessment Tool (SWAT) and incorporates delivery ratios informed by the Conservation Effects and Assessment Project (CEAP). This approach makes SWIFT a practical tool for assessing non-point source pollution, soil erosion prevention, and the broader environmental impacts of land use and management practices.
This repository is based on the original SWAT+ repository and has been updated to incorporate the SWIFT framework. It includes the latest SWIFT source code along with test data to compile and validate the executable across various compilers and platforms.
Repository
Get the SWIFT sources by cloning the forked repository using git.
$ git clone https://github.com/<user>/swift.git
Or, download the sources directly from the artifacts, unzip. Use a tagged version (preferred).
$ wget https://github.com/tugraskan/SWIFT/archive/refs/tags/61.0.zip
Directory Structure
The directory structure is shown below. The build directory gets created and populated during the generation of the cmake files and the cmake build.
swift
├── build
│ ├── ...
│ ├── *.mod
│ ├── Testing
│ └── CMakeFiles
│ ├── Makefile.cmake
│ ├── ...
│ └── swift-<ver>.dir
│ ├── *.mod.tstamp
│ ├── src
│ └── ...
├── data ---> contains all data sets for testing
│ ├── Ames_sub1
│ ├── <other>
│ └── ...
├── src ---> contains all swift Fortran source files
│ └── *.f90
├── test ---> contains all unit tests sources
│ ├── check.py
│ └── ...
├── doc ---> contains all hosted documentation
├── CMakeLists.txt ---> cmake project file
├── ford.md.in ---> FORD Documentation creation project
├── README.md ---> this file
└── ...

Developing SWIFT
This GitHub repository is setup to build, test, and deploy SWIFT using the CMake tool. CMake is a cross-platform build tool that can be used at the command line but it is also supported through various IDEs, etc. More information can be found at http://cmake.org.
In addition to CMake, the following tools are also needed:
  • git tool for version control
  • make tool (for building)
  • gfortran or ifort/ifx compiler and linker (for compiling/linking)
  • python3 (for testing, optional)
  • ford (for documentation generation)
Use the operating system's preferred way of adding those tools to your installation. There is certainly more than one way of getting and installing them.
The following sections are emphasizing various development aspects.
Documentation and References
SWIFT Source Documentation on GitHub
! Planned SWIFT Input/Output Documentation on Gitbook
SWIFT at TAMU
About
No description, website, or topics provided.
Resources
Readme
LGPL-2.1 license
Code of conduct
Code of conduct
Activity
Custom properties
Stars
0 stars
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
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})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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Release
SWIFT
The Soil and Water Integrated Flow Tool (SWIFT) is an open-source model for rapidly estimating sediment and nutrient loads from small watersheds in the United States. Built upon the foundation of the SWAT+ framework, SWIFT leverages readily available data—such as watershed size, land use, and geographic location—to generate load estimates along with distributions that capture the inherent uncertainties of the estimation process. It employs export coefficients originally derived from the Soil and Water Assessment Tool (SWAT) and incorporates delivery ratios informed by the Conservation Effects and Assessment Project (CEAP). This approach makes SWIFT a practical tool for assessing non-point source pollution, soil erosion prevention, and the broader environmental impacts of land use and management practices.
This repository is based on the original SWAT+ repository and has been updated to incorporate the SWIFT framework. It includes the latest SWIFT source code along with test data to compile and validate the executable across various compilers and platforms.
Repository
Get the SWIFT sources by cloning the forked repository using git.
$ git clone https://github.com/<user>/swift.git
Or, download the sources directly from the artifacts, unzip. Use a tagged version (preferred).
$ wget https://github.com/tugraskan/SWIFT/archive/refs/tags/61.0.zip
Directory Structure
The directory structure is shown below. The build directory gets created and populated during the generation of the cmake files and the cmake build.
swift
├── build
│ ├── ...
│ ├── *.mod
│ ├── Testing
│ └── CMakeFiles
│ ├── Makefile.cmake
│ ├── ...
│ └── swift-<ver>.dir
│ ├── *.mod.tstamp
│ ├── src
│ └── ...
├── data ---> contains all data sets for testing
│ ├── Ames_sub1
│ ├── <other>
│ └── ...
├── src ---> contains all swift Fortran source files
│ └── *.f90
├── test ---> contains all unit tests sources
│ ├── check.py
│ └── ...
├── doc ---> contains all hosted documentation
├── CMakeLists.txt ---> cmake project file
├── ford.md.in ---> FORD Documentation creation project
├── README.md ---> this file
└── ...

Developing SWIFT
This GitHub repository is setup to build, test, and deploy SWIFT using the CMake tool. CMake is a cross-platform build tool that can be used at the command line but it is also supported through various IDEs, etc. More information can be found at http://cmake.org.
In addition to CMake, the following tools are also needed:
  • git tool for version control
  • make tool (for building)
  • gfortran or ifort/ifx compiler and linker (for compiling/linking)
  • python3 (for testing, optional)
  • ford (for documentation generation)
Use the operating system's preferred way of adding those tools to your installation. There is certainly more than one way of getting and installing them.
The following sections are emphasizing various development aspects.
Documentation and References
SWIFT Source Documentation on GitHub
! Planned SWIFT Input/Output Documentation on Gitbook
SWIFT at TAMU
About
No description, website, or topics provided.
Resources
Readme
LGPL-2.1 license
Code of conduct
Code of conduct
Activity
Custom properties
Stars
0 stars
Watchers
1 watching
Forks
0 forks
Report repository
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} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
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})();

Skip to content
BranchesTags
Repository files navigation
Release
SWIFT
The Soil and Water Integrated Flow Tool (SWIFT) is an open-source model for rapidly estimating sediment and nutrient loads from small watersheds in the United States. Built upon the foundation of the SWAT+ framework, SWIFT leverages readily available data—such as watershed size, land use, and geographic location—to generate load estimates along with distributions that capture the inherent uncertainties of the estimation process. It employs export coefficients originally derived from the Soil and Water Assessment Tool (SWAT) and incorporates delivery ratios informed by the Conservation Effects and Assessment Project (CEAP). This approach makes SWIFT a practical tool for assessing non-point source pollution, soil erosion prevention, and the broader environmental impacts of land use and management practices.
This repository is based on the original SWAT+ repository and has been updated to incorporate the SWIFT framework. It includes the latest SWIFT source code along with test data to compile and validate the executable across various compilers and platforms.
Repository
Get the SWIFT sources by cloning the forked repository using git.
$ git clone https://github.com/<user>/swift.git
Or, download the sources directly from the artifacts, unzip. Use a tagged version (preferred).
$ wget https://github.com/tugraskan/SWIFT/archive/refs/tags/61.0.zip
Directory Structure
The directory structure is shown below. The build directory gets created and populated during the generation of the cmake files and the cmake build.
swift
├── build
│ ├── ...
│ ├── *.mod
│ ├── Testing
│ └── CMakeFiles
│ ├── Makefile.cmake
│ ├── ...
│ └── swift-<ver>.dir
│ ├── *.mod.tstamp
│ ├── src
│ └── ...
├── data ---> contains all data sets for testing
│ ├── Ames_sub1
│ ├── <other>
│ └── ...
├── src ---> contains all swift Fortran source files
│ └── *.f90
├── test ---> contains all unit tests sources
│ ├── check.py
│ └── ...
├── doc ---> contains all hosted documentation
├── CMakeLists.txt ---> cmake project file
├── ford.md.in ---> FORD Documentation creation project
├── README.md ---> this file
└── ...

Developing SWIFT
This GitHub repository is setup to build, test, and deploy SWIFT using the CMake tool. CMake is a cross-platform build tool that can be used at the command line but it is also supported through various IDEs, etc. More information can be found at http://cmake.org.
In addition to CMake, the following tools are also needed:
  • git tool for version control
  • make tool (for building)
  • gfortran or ifort/ifx compiler and linker (for compiling/linking)
  • python3 (for testing, optional)
  • ford (for documentation generation)
Use the operating system's preferred way of adding those tools to your installation. There is certainly more than one way of getting and installing them.
The following sections are emphasizing various development aspects.
Documentation and References
SWIFT Source Documentation on GitHub
! Planned SWIFT Input/Output Documentation on Gitbook
SWIFT at TAMU
About
No description, website, or topics provided.
Resources
Readme
LGPL-2.1 license
Code of conduct
Code of conduct
Activity
Custom properties
Stars
0 stars
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Used by
Contributors
Languages