A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CHARACTERIZATION OF SPATIAL AND TEMPORAL DISTRIBUTION OF MONSOON RAINFALL OVER MUMBAI
Rainfall has been observed to exhibit large spatial and temporal variation over large urban catchments. Hence, knowledge of distribution of the precipitation in time and space will enable to design better urban rainfall-runoff models and to forecast urban floods to improve flood response and mitigation measures. The present paper deals with the spatial and temporal variation of high intensity monsoon rainfall over 437.71 km2 area under the jurisdiction of the Municipal Corporation of Greater Mumbai (MCGM) with a population of 17.7 million (2001 census). The preliminary analysis presented here is based on the data from the rain gauge network of 26 stations in Mumbai for the July 3–5,2006 event, which resulted in a 3-day rainfall total of 409.8 mm. Based on the analysis of data it is concluded that the single rain gauge at Colaba, which has been taken to be representative of the rainfall in the city overestimates rainfall by 11.5%, and the single rain gauge at Santa Cruz, which has been taken to be representative of the rainfall in the suburbs overestimates rainfall by 16.6%. Thus, single point rainfall data cannot be taken as an indication of rainfall over a large urban catchment. Hence all cities in future should install a detailed rain gauge network for better understanding the rainfall variation in the city. This will improve drainage design and flood rescue measures.
CHARACTERIZATION OF SPATIAL AND TEMPORAL DISTRIBUTION OF MONSOON RAINFALL OVER MUMBAI
Rainfall has been observed to exhibit large spatial and temporal variation over large urban catchments. Hence, knowledge of distribution of the precipitation in time and space will enable to design better urban rainfall-runoff models and to forecast urban floods to improve flood response and mitigation measures. The present paper deals with the spatial and temporal variation of high intensity monsoon rainfall over 437.71 km2 area under the jurisdiction of the Municipal Corporation of Greater Mumbai (MCGM) with a population of 17.7 million (2001 census). The preliminary analysis presented here is based on the data from the rain gauge network of 26 stations in Mumbai for the July 3–5,2006 event, which resulted in a 3-day rainfall total of 409.8 mm. Based on the analysis of data it is concluded that the single rain gauge at Colaba, which has been taken to be representative of the rainfall in the city overestimates rainfall by 11.5%, and the single rain gauge at Santa Cruz, which has been taken to be representative of the rainfall in the suburbs overestimates rainfall by 16.6%. Thus, single point rainfall data cannot be taken as an indication of rainfall over a large urban catchment. Hence all cities in future should install a detailed rain gauge network for better understanding the rainfall variation in the city. This will improve drainage design and flood rescue measures.
CHARACTERIZATION OF SPATIAL AND TEMPORAL DISTRIBUTION OF MONSOON RAINFALL OVER MUMBAI
Lokanadham, B. (author) / Gupta, Kapil (author) / Nikam, Vinay (author)
ISH Journal of Hydraulic Engineering ; 15 ; 69-80
2009-01-01
12 pages
Article (Journal)
Electronic Resource
Unknown
Studio Mumbai, Radhika Desai - Monsoon House
| Online Contents | 2012
Tropical disturbances and Indian monsoon rainfall
| British Library Conference Proceedings | 2006
Assessing frequency and severity of extreme rainfall in Mumbai region
| British Library Online Contents | 2007
Generation/forecasting of monsoon rainfall data
| British Library Conference Proceedings | 1994