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Operational forecasting systems in the urban environment
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Operational forecasting systems in the urban environment

Asian Megacities presentation: Towards an Operational Urban Flood Forecasting System

Abstract

More than 325 million people are living in the 15 biggest Asian cities and their metropolitan areas (mostly in China, India, Pakistan and Indonesia). Heavy rainfall during extreme weather events can cause significant economic and infrastructure damages and also casualties in those megacities. Urban flooding affects almost any aspect and sector in the city. Better Information regarding expected and existent precipitation in time and space can help authorities and the citizens in these urban environments to be better prepared before and during severe flood events and to take actions that save properties and life. 

ClimaCell’s flood forecasting system (CCFS) is based on multiple sources with both high resolution local and global precipitation coverage. The system integrates observed precipitation data from satellites, radars, rain gauges and dense cellular networks in addition to forecasts from ensembles of global and mesoscale meteorological models. By analyzing long term historical precipitation time series for every megacity across Asia and integration with ClimaCell’s online unique precipitation database, our system can estimate the flooding severity probability of occurrence and send alerts to local decision makers. The system will be able to point specifically where the heaviest precipitation is falling over the metropolis areas and alert different users so they will be better prepared. In particular, bringing online novel estimates of precipitation using commercial microwave links will help immensely in localizing when and where the most intense precipitations occur in larger storm systems, providing a novel way to build warn-on-forecast products for flash flooding.

City planners and engineers can also use ClimaCell’s analysis, statistics and charts regarding precipitation intensity, flooding return periods and probability of occurrence for taking actions in order to better manage urban runoff. This will strengthen the weather and climate resiliency and improve the quality of life for those city’s inhabitants.

Key note presentation given at InterMET Asia 27 March 2019

Plenary session chaired by Robert Thompson, Key Expert HydroMet DSS, ICT Infrastructure and Networks, International Development Projects

Note: please click both links to hear audio and view slides at the same time.

Dr. Amir Givati - Director of Flood Modeling, Climacell

Dr. Amir Givati

Dr. Amir Givati

Director of Flood Modeling, Climacell

Dr. Givati was the head of the Surface water and Hydrometeorology Department at the Israeli Hydrological Service under the Water Authority and from 2009 was also the head of the research unit at the Water Authority. From January 2019 he has been the head of flood modelling division at ‘ClimaCell’.


He received his Ph.D. from the Department of Atmospheric Sciences at the Institute of Earth Science, Hebrew University of Jerusalem. His expertise incudes hydrometeorology, flood forecasting, coupled meteorological-earth models, water resources, drought prediction, seasonal precipitation forecasting, reginal climate modelling, climate change effects on the hydrological cycle. Dr. Givati is teaching courses at the Tel Aviv University on water resources, and climate and water resources.

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