Decision Support System in Hydrological Modeling - A case study in China
Zhang, Linus LU
(1998)
Rain water harvesting and management of small reservoirs in arid and semiarid areas
In Report
p.135-148
- Abstract
- Generally speaking, Computer based numerical hydrological models have been playing a very central role during the last decades in dealing with water resources related problems. Various kinds of conceptual, physical and stochastical models have been developed. Perhaps the most important contribution of those models is the ability of simplifying and schematizing a complex problem in the nature and solve it mathematically against the predefined conditions. Another indispensable contribution of the numerical models is the ability to carry out tedious, time consuming calculations to test different assumptions and scenarios. However, practical applications of the those models indicate severe limitations of the models. Most of the existing models... (More)
- Generally speaking, Computer based numerical hydrological models have been playing a very central role during the last decades in dealing with water resources related problems. Various kinds of conceptual, physical and stochastical models have been developed. Perhaps the most important contribution of those models is the ability of simplifying and schematizing a complex problem in the nature and solve it mathematically against the predefined conditions. Another indispensable contribution of the numerical models is the ability to carry out tedious, time consuming calculations to test different assumptions and scenarios. However, practical applications of the those models indicate severe limitations of the models. Most of the existing models of hydrological systems are facing following problems: Models require tremendous effort in calibrating and parameter identification and thus, very difficult to generalize their usage; Trial-and-error approach must be used due to lack of data; even when the model structures and algorithms are perfect the modeling results are limited by the spatial and temporal resolutions of the models. Like any other numerical models, hydrological models require that the underlining physical mechanisms of the problems are well defined and a mathematical algorithm is established. This is the case for most of the existing models. However, the obstacles preventing the improved modeling results are mostly due to the inability of handling the hydrological processes and properties in both space and temporal domains with satisfactory resolution. By joined efforts with the help of GIS (Geographical Information System) and RS (Remote Sensing) techniques, not only the results of the existing models can be largely improved, but also the new concepts and functions can be incorporated in the new era hydrological modeling. The present study concerns development of a integrated model to combine and incorporate the GIS and RS into existing hydrological modeling systems. The aim is to provide an integrated hydrological modeling system (or a Decision Support System, DSS) for water resources management at basin-wide, regional scale, capable to solve complex problems in four dimensions (spatial and temporal). The existing hydrological models may consists of basin-wide rainfall-runoff models with user interface and data treatment unit. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/d5fdabc9-5944-4e56-bcfb-d688f29f16c0
- author
- Zhang, Linus
LU
- organization
- publishing date
- 1998
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- host publication
- Proceedings of the International Seminar Rain water harvesting and management of small reservoirs in arid and semiarid areas : an expert meeting within the EU-INCO collaboration HYDROMED (Program for research on hill reservoirs in the semiarid zone of the Mediterranean periphery). Lund University, 29 June - 2 July, 1998 - an expert meeting within the EU-INCO collaboration HYDROMED (Program for research on hill reservoirs in the semiarid zone of the Mediterranean periphery). Lund University, 29 June - 2 July, 1998
- series title
- Report
- issue
- 3222
- pages
- 12 pages
- publisher
- Water Resources Engineering, Lund University, Lund, Sweden
- conference name
- Rain water harvesting and management of small reservoirs in arid and semiarid areas
- conference location
- Lund, Sweden
- conference dates
- 1998-06-29 - 1998-07-02
- ISSN
- 1101-9824
- language
- English
- LU publication?
- yes
- id
- d5fdabc9-5944-4e56-bcfb-d688f29f16c0
- date added to LUP
- 2025-02-15 19:29:07
- date last changed
- 2025-04-08 15:44:00
@inproceedings{d5fdabc9-5944-4e56-bcfb-d688f29f16c0,
abstract = {{Generally speaking, Computer based numerical hydrological models have been playing a very central role during the last decades in dealing with water resources related problems. Various kinds of conceptual, physical and stochastical models have been developed. Perhaps the most important contribution of those models is the ability of simplifying and schematizing a complex problem in the nature and solve it mathematically against the predefined conditions. Another indispensable contribution of the numerical models is the ability to carry out tedious, time consuming calculations to test different assumptions and scenarios. However, practical applications of the those models indicate severe limitations of the models. Most of the existing models of hydrological systems are facing following problems: Models require tremendous effort in calibrating and parameter identification and thus, very difficult to generalize their usage; Trial-and-error approach must be used due to lack of data; even when the model structures and algorithms are perfect the modeling results are limited by the spatial and temporal resolutions of the models. Like any other numerical models, hydrological models require that the underlining physical mechanisms of the problems are well defined and a mathematical algorithm is established. This is the case for most of the existing models. However, the obstacles preventing the improved modeling results are mostly due to the inability of handling the hydrological processes and properties in both space and temporal domains with satisfactory resolution. By joined efforts with the help of GIS (Geographical Information System) and RS (Remote Sensing) techniques, not only the results of the existing models can be largely improved, but also the new concepts and functions can be incorporated in the new era hydrological modeling. The present study concerns development of a integrated model to combine and incorporate the GIS and RS into existing hydrological modeling systems. The aim is to provide an integrated hydrological modeling system (or a Decision Support System, DSS) for water resources management at basin-wide, regional scale, capable to solve complex problems in four dimensions (spatial and temporal). The existing hydrological models may consists of basin-wide rainfall-runoff models with user interface and data treatment unit.}},
author = {{Zhang, Linus}},
booktitle = {{Proceedings of the International Seminar Rain water harvesting and management of small reservoirs in arid and semiarid areas : an expert meeting within the EU-INCO collaboration HYDROMED (Program for research on hill reservoirs in the semiarid zone of the Mediterranean periphery). Lund University, 29 June - 2 July, 1998}},
issn = {{1101-9824}},
language = {{eng}},
number = {{3222}},
pages = {{135--148}},
publisher = {{Water Resources Engineering, Lund University, Lund, Sweden}},
series = {{Report}},
title = {{Decision Support System in Hydrological Modeling - A case study in China}},
year = {{1998}},
}