PMID- 25687259
OWN - NLM
STAT- MEDLINE
DCOM- 20150709
LR  - 20181202
IS  - 1573-2959 (Electronic)
IS  - 0167-6369 (Linking)
VI  - 187
IP  - 3
DP  - 2015 Mar
TI  - Numerical simulations of heavily polluted fine-grained sediment remobilization 
      using 1D, 1D+, and 2D channel schematization.
PG  - 115
LID - 10.1007/s10661-015-4339-3 [doi]
AB  - This article used various hydrodynamic and sediment transport models to analyze 
      the potential and the limits of different channel schematizations. The main aim 
      was to select and evaluate the most suitable simulation method for fine-grained 
      sediment remobilization assessment. Three types of channel schematization were 
      selected to study the flow potential for remobilizing fine-grained sediment in 
      artificially modified channels. Schematization with a 1D cross-sectional 
      horizontal plan, a 1D+ approach, splitting the riverbed into different functional 
      zones, and full 2D mesh, adopted in MIKE by the DHI modeling suite, was applied 
      to the study. For the case study, a 55-km stretch of the Bilina River, in the 
      Czech Republic, Central Europe, which has been heavily polluted by the chemical 
      and coal mining industry since the mid-twentieth century, was selected. Long-term 
      exposure to direct emissions of toxic pollutants including heavy metals and 
      persistent organic pollutants (POPs) resulted in deposits of pollutants in 
      fine-grained sediments in the riverbed. Simulations, based on three hydrodynamic 
      model schematizations, proved that for events not exceeding the extent of the 
      riverbed profile, the 1D schematization can provide comparable results to a 2D 
      model. The 1D+ schematization can improve accuracy while keeping the benefits of 
      high-speed simulation and low requirements of input DEM data, but the method's 
      suitability is limited by the channel properties.
FAU - Kaiglova, Jana
AU  - Kaiglova J
AD  - Department of Physical Geography and Geoecology, Faculty of Science, Charles 
      University in Prague, Albertov 6, Prague 2, 128 43, Czech Republic.
FAU - Langhammer, Jakub
AU  - Langhammer J
FAU - Jirinec, Petr
AU  - Jirinec P
FAU - Jansky, Bohumir
AU  - Jansky B
FAU - Chalupova, Dagmar
AU  - Chalupova D
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20150217
PL  - Netherlands
TA  - Environ Monit Assess
JT  - Environmental monitoring and assessment
JID - 8508350
RN  - 0 (Metals, Heavy)
RN  - 0 (Water Pollutants)
SB  - IM
MH  - Cross-Sectional Studies
MH  - Environmental Monitoring/*methods
MH  - Environmental Pollution
MH  - Europe
MH  - Geologic Sediments/*analysis/chemistry
MH  - Metals, Heavy/analysis
MH  - *Models, Chemical
MH  - Rivers/chemistry
MH  - Water Pollutants/*analysis
EDAT- 2015/02/18 06:00
MHDA- 2015/07/15 06:00
CRDT- 2015/02/18 06:00
PHST- 2014/07/31 00:00 [received]
PHST- 2015/02/02 00:00 [accepted]
PHST- 2015/02/18 06:00 [entrez]
PHST- 2015/02/18 06:00 [pubmed]
PHST- 2015/07/15 06:00 [medline]
AID - 10.1007/s10661-015-4339-3 [doi]
PST - ppublish
SO  - Environ Monit Assess. 2015 Mar;187(3):115. doi: 10.1007/s10661-015-4339-3. Epub 
      2015 Feb 17.