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

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.

Hooshyaripor, FarhadIslamic Azad University (author)
Javadi, SamanUniversity of Tehran (author)
Dodangeh, MehrnazUniversity of Tehran (author)
Tian, FuqiangTsinghua University (author)
Adamowski, Jan FranklinMcGill University (author)
Berndtsson, RonnyLund University,Lunds universitet,Avdelningen för Teknisk vattenresurslära,Institutionen för bygg- och miljöteknologi,Institutioner vid LTH,Lunds Tekniska Högskola,Centrum för Mellanösternstudier (CMES),Samhällsvetenskapliga institutioner och centrumbildningar,Samhällsvetenskapliga fakulteten,LTH profilområde: Vatten,LTH profilområden,Division of Water Resources Engineering,Department of Building and Environmental Technology,Departments at LTH,Faculty of Engineering, LTH,Centre for Advanced Middle Eastern Studies (CMES),Departments of Administrative, Economic and Social Sciences,Faculty of Social Sciences,LTH Profile Area: Water,LTH Profile areas,Faculty of Engineering, LTH(Swepub:lu)tvrl-rbe (author)
Baghvand, AkbarUniversity of Tehran (author)
Klöve, BjörnUniversity of Oulu(Swepub:lu)extLU-1535 (author)
University of TehranIslamic Azad University (creator_code:org_t)

In:Hydrogeology Journal: Springer Science and Business Media LLC1431-21741435-0157

By the author/editor: Noori, Roohollah; Hooshyaripor, Fa ...; Javadi, Saman; Dodangeh, Mehrna ...; Tian, Fuqiang; Adamowski, Jan F ...; show more...; Berndtsson, Ronn ...; Baghvand, Akbar; Klöve, Björn; show less...

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ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Civil Engineerin ...; and Water Engineerin ...

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