Model:Nitrate Network Model


Nitrate Network Model


Also known as
Model type Single
Model part of larger framework
Note on status model
Date note status model
Incorporated models or components:
Spatial dimensions 1D
Spatial extent Continental, Regional-Scale, Landscape-Scale, Watershed-Scale
Model domain Terrestrial, Hydrology
One-line model description Nitrate and organic carbon dynamics on a wetland-river network
Extended model description Network-based modeling framework of Czuba and Foufoula-Georgiou as applied to nitrate and organic carbon on a wetland-river network.

This code is capable of reproducing the results (with some work of commenting/uncommenting code by the end user) described in the following publication:

Czuba, J.A., A.T. Hansen, E. Foufoula-Georgiou, and J.C. Finlay (2018), Contextualizing wetlands within a river network to assess nitrate removal and inform watershed management, Water Resources Research, 54(2), 1312-1337, doi:10.1002/2017WR021859.


River network, Nitrate, Organic carbon, Wetland, Denitrification,

Name Jonathan Czuba
Type of contact Model developer
Institute / Organization Virginia Tech
Postal address 1
Postal address 2
Town / City Blacksburg
Postal code 24061
State Virginia
Country United States
Email address

Supported platforms
Other platform
Programming language


Other program language
Code optimized
Multiple processors implemented
Nr of distributed processors
Nr of shared processors
Start year development 2015
Does model development still take place? No
If above answer is no, provide end year model development 2018
Code development status As is, no updates are provided
When did you indicate the 'code development status'? 2020
Model availability As code, As teaching tool
Source code availability
(Or provide future intension)
Through CSDMS repository
Source web address
Source csdms web address
Program license type GPL v3
Program license type other
Memory requirements
Typical run time a few seconds

Describe input parameters Minimum requirements include a river network with link id, downstream link id, upstream drainage area, link length, and link slope. All of these are attributes are included as part of the National Hydrography Dataset Version 2 Plus (NHDV2Plus).
Input format
Other input format
Describe output parameters See results of related publication by J. A. Czuba.
Output format
Other output format
Pre-processing software needed? No
Describe pre-processing software
Post-processing software needed? No
Describe post-processing software
Visualization software needed? No
If above answer is yes
Other visualization software

Describe processes represented by the model Advective transport and removal of nitrate and organic carbon via denitrification in lakes, wetlands, and channels.
Describe key physical parameters and equations See readme file with the source file download or related publication by J. A. Czuba.
Describe length scale and resolution constraints The river network is composed of links, defined as a segment of river channel between tributaries, but can be made smaller if desired. Generally each link has a length on the order of a few kilometers.
Describe time scale and resolution constraints Limited by computational resources.
Describe any numerical limitations and issues See related publication by J. A. Czuba.

Describe available calibration data sets An application dataset for the Le Sueur Basin is included as part of the source file download with all associated calibration and validation data.
Upload calibration data sets if available:
Describe available test data sets
Upload test data sets if available:
Describe ideal data for testing

Do you have current or future plans for collaborating with other researchers?
Is there a manual available? No
Upload manual if available:
Model website if any
Model forum / discussion board A readme file is included along with the source file download.

This part will be filled out by CSDMS staff

OpenMI compliant Yes
BMI compliant Yes
WMT component Yes
PyMT component
Is this a data component
Can be coupled with:
Model info
Nr. of publications: 1
Total citations: 24
h-index: 1
m-quotient: 0.17

Link to this page




Nr. of publications: 1
Total citations: 24
h-index: 1
m-quotient: 0.17

Featured publication(s)YearModel describedType of ReferenceCitations
Czuba, Jonathan A.; Hansen, Amy T.; Foufoula-Georgiou, Efi; Finlay, Jacques C.; 2018. Contextualizing Wetlands Within a River Network to Assess Nitrate Removal and Inform Watershed Management. Water Resources Research, 54, 1312–1337. 10.1002/2017WR021859
(View/edit entry)
2018 Nitrate Network Model
Model overview 24
See more publications of Nitrate Network Model



Input Files

Output Files