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SUMMARY:® Integrating WRF and Hydrology Models for Improved Urban Flood F
 orecasting in Pune using HPC: A Comprehensive Approach for the Indian Metr
 opolis
DTSTART;VALUE=DATE-TIME:20231206T094500Z
DTEND;VALUE=DATE-TIME:20231206T100000Z
DTSTAMP;VALUE=DATE-TIME:20260814T011210Z
UID:indico-contribution-2009@events.chpc.ac.za
DESCRIPTION:Speakers: Manoj Khare ()\nPune is the second largest city in t
 he Indian state of Maharashtra\, situated over a complex topographical reg
 ion on the leeward side of the Western Ghats\, India. Recently\, Pune City
  has been experiencing frequent heavy to extreme rainfall events\, causing
  urban floods\, threatening lives\, and heavy socio-economic damage. The r
 ecent decade has witnessed the adverse effects of urban foods on daily lif
 e by destroying infrastructure\, water-logging that triggers foods\, disru
 pting transportation\, and resulting in the loss of lives and property. An
  efficient early warning system is a crucial requirement that remains chal
 lenging using a high-resolution numerical weather prediction (NWP) model. 
 The complexity increases manifold\, particularly if the forecast has to be
  made on an urban scale to mitigate its adverse impacts.\nAn attempt is ma
 de to develop a coupled modelling system that integrates the Weather Resea
 rch and Forecasting (WRF) model with Hydrological to enhance urban flood f
 orecasting capabilities for an Indian city. Extensive work has been done t
 o set up the WRF model through sensitivity analysis of domain setup\, para
 meterisation schemes\, land-use information\, and initial conditions for r
 ainfall event forecasting over Pune. Model performance has been validated 
 against various observations available through ground-based and satellite 
 measurements. The rainfall forecast obtained from the WRF model at a very 
 high resolution of 0.5 km has been provided to the hydrology model to simu
 late surface runoff\, stormwater discharge\, and depth in urban regions. T
 he developed coupled system was calibrated against past rainfall flood eve
 nts over Pune. This calibration ensured that the model represented the act
 ual behaviour of the system and the rainfall distribution in the sub-catch
 ments. This coupled system was used for simulations of recent floods of 20
 22 and showed a good agreement with observations. Such coupling of hydro-m
 et systems can be a helpful tool to enhance urban flood forecasting. For t
 his work\, WRF model simulations were performed on HPC (PARAM series) usin
 g around 1900 processors.\n\nhttps://events.chpc.ac.za/event/125/contribut
 ions/2009/
LOCATION:Skukuza 1-1-2 - Ndau
URL:https://events.chpc.ac.za/event/125/contributions/2009/
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