Dr. Ming Ye
Associate ProfessorDepartment of Scientific Computing
Florida State University
PhD, University of Arizona
Office: 489 Dirac Science Library
Phone: (850) 644-4587
Fax: (850) 644-0098
This page has been visited:
times since June 11, 2009
VZMOD version 1.0 for ArcGIS 10.0 is available for download
Vadose Zone MODel for simulation of nitrogen transformation and transport
Developer: Liying Wang, Ming Ye, and Paul Z. Lee
Contact: Use the form below under Support/Comments or email directly to Professor Ming Ye at email@example.com
Funding Source: Florida Department of Environmental Protection (FDEP)
With the support of Florida Department of Environmental Protection, this software is developed to simulate nitrogen transformation and transport
in vadose zone. The software is developed using the Python programming language and based on a simpfied model that simulates (1) one-dimensional (1-D) unsaturated, steady-state flow in the vertical direction,
(2) nitrification process for transformation of ammonium (representing total nitrogen) to nitrate and denitrification process for transformation of nitrate to nitrogen gas, and
(3) coupled, steady-state transport of ammonium and nitrate. The end-product of this model is vertical profiles of ammonium and nitrate. The software can be used for
the following modeling scenarios: (1) a single septic system with homogeneous model parameters, (2) multiple septic systems with homogeneous parameters,
(3) multiple septic systems with heterogeneous hydraulic conductivity and porosity (other parameters being homogeneous), and (4) multiple septic systems with
heterogeneous hydraulic conductivity, porosity, and depth to water table (other parameters being homogeneous). Running VZMOD for the latter three modeling scenarios
requires input files of ArcGIS 10 format; installation of ArcGIS 10 is also required, because VZMOD uses spatial analysis functions of ArcGIS 10 to handle spatial variability of
septic systems and model parameters. Preparing the ArcGIS files can be facilitated by using ArcNLET software
developed to simulate nitrate transport in groundwater. On the other hand, the nitrate concentrations at water table simulated by VZMOD can be directly used as the source plane concentrations
of ArcNLET. In this sense, VZMOD can be used as a pre-processor of ArcNLET. Although VZMOD is developed for modeling septic systems, it can be used to simulate nitrogen transformation and transport
of other nitrogen sources like agriculture use.
The software is available for free download by completing the form below. By filling in this
information, it helps us know who is interested in the software!
VZMOD requires ArcGIS 10.0 with Spatial Analyst.
The user's manual describes the conceptual models, software design and development, software installation, input file preparation, and execution.
In order to follow the tutorial in the user's manual, the data required
is provided here.
you acknowledge that you have
accept the following terms:
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE CONTRIBUTORS, COPYRIGHT HOLDERS OR FLORIDA STATE UNIVERSITY OR ITS EMPLOYEES BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH
THE SOFTWARE OR THE USE OR OTHER DEALINGS WITH THE SOFTWARE.
VZMOD by Liying Wang, Ming Ye and Paul Z. Lee is licensed under a Creative Commons Attribution-NoDerivs 3.0 Unported
on a work supported by the FDEP. This license allows for
redistribution, commercial and non-commercial, as long as it is passed
along unchanged and in whole, with credit to us. The FDEP shall have a
and irrevocable right to reproduce, publish, or otherwise use the work
for governmental purpose.
Software Online Training
Request Technical Support or Provide Comments
- People who are interested in using VZMOD can take an online training using real data of Eggleston Heights neighborhood, Jacksonville, FL.
Please complete the
following form to submit a bug report or to provide comments.
sure to include as much information as possible!
Software version history (* = current release):
||-Version 1 release
Modeling Domain Overview
Simulated Nitrate Concentration
Profiles for FID 391 (loamy sand)
Profiles for FID 543 (sand)
Profiles for FID 100 (sand)