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News Release from: Wallingford Software | Subject: Flood Forecasting System 5
Edited by the Buildingtalk Editorial
Team on 10 February 2004
Bangkok Benefits From Flood Forecasting
System
Bangkok benefits from Wallingford Software's Flood Forecasting System 5.
From mid-September to the end of October each year Bangkok residents and businesses fear the rising levels of the Lower Chao Praya River Unlike previous years however, in 2003 the quality of information available about the behavior of the Lower Chao Praya River has improved considerably
This article was originally published on Buildingtalk on 6 Oct 2003 at 8.00am (UK)
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Undertaken by the Thailand Royal Irrigation Dept (RID), the Office of the Royal Development Projects Board (RDPB) and the National Research Fund (NRF), the Hydrodynamic Flow Measurement Project represents a significant investment in flood forecasting and management systems.
The objective is to provide government engineers with accurate and timely information about likely flood patterns well ahead of any flood event itself.
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From August onwards residents and businesses in Bangkok, Nontaburi and Pathumthani Provinces begin to take an active and detailed interest in water levels because of the enormous social and economic cost for the whole of Thailand that would result from flooding in the cities.
Previously engineers have made hand calculations based on daily readings of river levels.
Engineers recognized that the implementation of a more sophisticated telemetry and modeling-based forecasting system would provide Bangkok and the surrounding area with more information about impending floods further ahead of the event itself and enable preventative action to be taken upstream, such as retention of flood water in the less valuable land.
The project involved the development of a real time flood forecasting system for the Lower Chao Praya River that flows through the center of Bangkok and its surrounding area.
The active forecast area is from Ayutthaya through Bangkok to the mouth of the Chao Praya River.
Implementing a computerized system for the first time required significant hardware and software investments.
This included the addition of eight new telemetry sites to the existing network of 25 sites to monitor and record water and rainfall levels.
In addition to the software investments, new servers were installed at the offices of the RID and to facilitate remote access to the system, new communications links were established to existing Bangkok Metropolitan Administration (BMA) and Public Works Dept (PWD) telemetry systems along the Chao Praya River.
Wallingford Software co-operated on the project with AMR Asia Co Ltd (main contractor and supplier of telemetry/SCADA equipment) and Professor Chukiat Sapphaisal of Kasetsart University (leading a team of specialist local Thai modelers and flood forecasting experts).
Andrew Brown of Wallingford Software said: "InfoWorks RS and FloodWorks have alleviated concerns about the risk of flooding by improving the accuracy of flood forecasting very considerably.
Bangkok now benefits from 7-day predictions of water levels and flows in the lower Chao Praya River compared with or two days previously.
It is a tremendous improvement that directly benefits the residents and businesses of Bangkok.".
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