The browser you are using is not supported by this website. All versions of Internet Explorer are no longer supported, either by us or Microsoft (read more here: https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Please use a modern browser to fully experience our website, such as the newest versions of Edge, Chrome, Firefox or Safari etc.

Profile photo of Ronny Berndtsson

Ronny Berndtsson

Professor, Dep Director, MECW Dep Scientific Coordinator

Profile photo of Ronny Berndtsson

PODMT3DMS-Tool : proper orthogonal decomposition linked to the MT3DMS model for nitrate simulation in aquifers

Author

  • Roohollah Noori
  • Farhad Hooshyaripor
  • Saman Javadi
  • Mehrnaz Dodangeh
  • Fuqiang Tian
  • Jan Franklin Adamowski
  • Ronny Berndtsson
  • Akbar Baghvand
  • Björn Klöve

Summary, in English

The PODMT3DMS-Tool, which consists of a proper orthogonal decomposition (POD) linked to the Modular Transport 3-Dimensional Multi Species (MT3DMS) code for nitrate simulation in groundwater, is introduced. POD, as a statistical technique, reduces a large amount of information produced by the MT3DMS model to provide the main components of the PODMT3DMS-Tool, i.e., space- and time-dependent terms of nitrate. The low-dimensional components represent time- and space-dependent factors in the aquifer response such as hydraulic, hydrogeological and water quality variables represented in the simulation using the MT3DMS model. The PODMT3DMS-Tool is thus a combined statistical and conceptual model with a simple structure and comparable accuracy to MT3DMS. Practical application of the PODMT3DMS-Tool to the Karaj Aquifer in Iran during 6 years revealed agreement between nitrate concentrations simulated by the PODMT3DMS-Tool and MT3DMS, with a mean absolute error of less than 0.5 mg/L in most parts of the aquifer. Moreover, the PODMT3DMS-Tool needed only about 10% of the calculation time required by MT3DMS. The PODMT3DMS-Tool can be used in predict nitrate concentration in the Karaj Aquifer, while its simplicity also makes it highly interesting for other water resources problems.

Department/s

  • Centre for Advanced Middle Eastern Studies (CMES)
  • MECW: The Middle East in the Contemporary World
  • Division of Water Resources Engineering
  • LTH Profile Area: Water

Publishing year

2020-01-21

Language

English

Publication/Series

Hydrogeology Journal

Document type

Journal article

Publisher

Springer

Topic

  • Water Engineering

Keywords

  • Iran
  • MODFLOW
  • MT3DMS
  • Nitrate
  • Proper orthogonal decomposition (POD)

Status

Published

ISBN/ISSN/Other

  • ISSN: 1431-2174