World Library  


Add to Book Shelf
Flag as Inappropriate
Email this Book

Process-based Karst Modelling to Relate Hydrodynamic and Hydrochemical Characteristics to System Properties : Volume 17, Issue 8 (23/08/2013)

By Hartmann, A.

Click here to view

Book Id: WPLBN0004010853
Format Type: PDF Article :
File Size: Pages 17
Reproduction Date: 2015

Title: Process-based Karst Modelling to Relate Hydrodynamic and Hydrochemical Characteristics to System Properties : Volume 17, Issue 8 (23/08/2013)  
Author: Hartmann, A.
Volume: Vol. 17, Issue 8
Language: English
Subject: Science, Hydrology, Earth
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
2013
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

APA MLA Chicago

Humer, F., Lange, J., Wagener, T., Butscher, C., Andreo, B., Huggenberger, P.,...Rimmer, A. (2013). Process-based Karst Modelling to Relate Hydrodynamic and Hydrochemical Characteristics to System Properties : Volume 17, Issue 8 (23/08/2013). Retrieved from http://www.ebooklibrary.org/


Description
Description: Institute of Hydrology, Freiburg University, Freiburg, Germany. More than 30% of Europe's land surface is made up of karst exposures. In some countries, water from karst aquifers constitutes almost half of the drinking water supply. Hydrological simulation models can predict the large-scale impact of future environmental change on hydrological variables. However, the information needed to obtain model parameters is not available everywhere and regionalisation methods have to be applied. The responsive behaviour of hydrological systems can be quantified by individual metrics, so-called system signatures. This study explores their value for distinguishing the dominant processes and properties of five different karst systems in Europe and the Middle East. By defining ten system signatures derived from hydrodynamic and hydrochemical observations, a process-based karst model is applied to the five karst systems. In a stepwise model evaluation strategy, optimum parameters and their sensitivity are identified using automatic calibration and global variance-based sensitivity analysis. System signatures and sensitive parameters serve as proxies for dominant processes, and optimised parameters are used to determine system properties. By sensitivity analysis, the set of system signatures was able to distinguish the karst systems from one another by providing separate information about dominant soil, epikarst, and fast and slow groundwater flow processes. Comparing sensitive parameters to the system signatures revealed that annual discharge can serve as a proxy for the recharge area, that the slopes of the high flow parts of the flow duration curves correlate with the fast flow storage constant, and that the dampening of the isotopic signal of the rain as well as the medium flow parts of the flow duration curves have a non-linear relation to the distribution of groundwater storage constants that represent the variability of groundwater flow dynamics. Our approach enabled us to identify dominant processes of the different systems and provided directions for future large-scale simulation of karst areas to predict the impact of future change on karst water resources.

Summary
Process-based karst modelling to relate hydrodynamic and hydrochemical characteristics to system properties

Excerpt
Anderson, R. G. and Goulden, M. L.: Relationships between climate, vegetation, and energy exchange across a montane gradient, J. Geophys. Res., 116, G01026, doi:10.1029/2010jg001476, 2011.; Aquilina, L., Ladouche, B., and Doerfliger, N.: Water storage and transfer in the epikarst of karstic systems during high flow periods, J. Hydrol., 327, 472–485, 2006.; Bailly-Comte, V., Borrell-Estupina, V., Jourde, H., and Pistre, S.: A conceptual semidistributed model of the Coulazou River as a tool for assessing surface water–karst groundwater interactions during flood in Mediterranean ephemeral rivers, Water Resour. Res., 48, W09534, doi:10.1029/2010wr010072, 2012.; Bakalowicz, M.: Karst groundwater: a challenge for new resources, Hydrogeol. J., 13, 148–160, 2005.; Barberá, J. A. and Andreo, B.: Functioning of a karst aquifer from S Spain under highly variable climate conditions, deduced from hydrochemical records, Environ. Earth Sci., 65, 2337–2349, doi:10.1007/s12665-011-1382-4, 2011.; Beven, K.: A manifesto for the equifinality thesis, J. Hydrol., 320, 18–36, 2006.; Birk, S., Geyer, T., Liedl, R., and Sauter, M.: Process-Based Interpretation of Tracer Tests in Carbonate Aquifers, Ground Water, 43, 381–388, 2005.; Birk, S., Liedl, R., and Sauter, M.: Karst Spring Responses Examined by Process-Based Modeling, Groundwater, 44, 832–836, 2006.; Bishop, K., Seibert, J., Kohler, S., and Laudon, H.: Resolving the Double Paradox of rapidly mobilized old water with highly variable responses in runoff chemistry, Hydrol. Process., 18, 185–189, 2004.; Bloomfield, J. P., Barker, J. A., and Robinson, N.: Modeling fracture porosity development using simple growth laws, Ground Water, 43, 314–326, doi:10.1111/j.1745-6584.2005.0039.x, 2005.; Brielmann, H.: Recharge and discharge mechanisms and dynamics in the mountainous northern Upper Jordan River Catchment, PhD, Faculty of Geosciences Ludwig-Maximilians-University, Munich, 2008.; Butscher, C., and Huggenberger, P.: Intrinsic vulnerability assessment in karst areas: A numerical modeling approach, Water Resour. Res., 44, W03408, doi:10.1029/2007WR006277, 2008.; Butscher, C. and Huggenberger, P.: Enhanced vulnerability assessment in karst areas by combining mapping with modeling approaches, J. Hydrol., 407, 1153–1163, 2009.; Carrillo, G., Troch, P. A., Sivapalan, M., Wagener, T., Harman, C., and Sawicz, K.: Catchment classification: hydrological analysis of catchment behavior through process-based modeling along a climate gradient, Hydrol. Earth Syst. Sci., 15, 3411–3430, doi:10.5194/hess-15-3411-2011, 2011.; Charlier, J.-B., Bertrand, C., and Mudry, J.: Conceptual hydrogeological model of flow and transport of dissolved organic carbon in a small Jura karst system, J. Hydrol., 460–461, 52–64, doi:10.1016/j.jhydrol.2012.06.043, 2012.; Christensen, J. H., Hewitson, B., Busuioc, A., Chen, A., Gao, X., Held, I., Jones, R., Kolli, R. K., Kwon, W.-T., Laprise, R., Rueda, V. M., Mearns, L., Menéndez, C. G., Räisänen, J., Rinke, A., Sarr, A., and Whetton, P.: Climate Change 2007: The Physical Science Basis, Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change, edited by: Solomon, S., Qin, D., Manning, M., Chen, Z., Marquis, M., Averyt, K. B., Tignor, M., and Miller, H. L., Cambridge University Press, Cambridge, UK and New York, NY, USA, 996 pp., 2007.; Doummar, J., Sauter, M., and Geyer, T.: Simulation of flow processes in a large scale karst system with an integrated catchment model (Mik

 

Click To View

Additional Books


  • Future Recovery of Acidified Lakes in So... (by )
  • Mapping Surface Soil Moisture Over the G... (by )
  • Co-operative Agreements and the Eu Water... (by )
  • Links Between the Big Dry in Australia a... (by )
  • On the Sources of Hydrological Predictio... (by )
  • Floodplain Sediment from a 100-year-recu... (by )
  • Sacra – Global Data Sets of Satellite-de... (by )
  • Predictability, Stationarity, and Classi... (by )
  • Hydrologic Predictions in a Changing Env... (by )
  • The June 2013 Flood in the Upper Danube ... (by )
  • Spatial Modelling of the Variability of ... (by )
  • Evaluation of Land Surface Model Simulat... (by )
Scroll Left
Scroll Right

 



Copyright © World Library Foundation. All rights reserved. eBooks from World eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.