Simulation of future climate variations using global circulation model and downscaling model

Precipitation is the main cause of variability in the water balance over space and time on the earth surface, and changes in precipitation have important implications for hydrology and water resources. Precipitation varies in space and time as result of the general circulation patterns of atmospheri...

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Main Author: Ghadim, Hamed Benisi
Format: Thesis
Language:English
Published: 2012
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Online Access:http://eprints.utm.my/id/eprint/31519/1/HamedBenisiGhadimMFKA2012.pdf
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spelling my.utm.315192020-09-30T06:38:14Z http://eprints.utm.my/id/eprint/31519/ Simulation of future climate variations using global circulation model and downscaling model Ghadim, Hamed Benisi TA Engineering (General). Civil engineering (General) Precipitation is the main cause of variability in the water balance over space and time on the earth surface, and changes in precipitation have important implications for hydrology and water resources. Precipitation varies in space and time as result of the general circulation patterns of atmospheric circulation and local factors. This study proposes the application Statistical Downscaling Model (SDSM) using three sets of data to investigate the climate variations. The data are the observed daily data of large-scale predictor variables, National Centre for Environmental Prediction (NCEP) and Global Circulation Model (GCM) simulations from Hadley Centre 3rd generation (HadCM3). The records of daily precipitation data (1961-1990) are from five stations namely, Ldg. Allagor, Pusat Kesihatan Kecil, Stn. Petak, Ldg. Gedong and Ldg. Gula. Those stations are located in Perak, Malaysia. The HadCM3 data starts from 1961 to 2099 were extracted for 30-year time slices. The results of SDSM downscaling model on precipitation have shown that the differences exist between current observed data and future periods (2020’s, 2050’s and 2080’s) for the five stations. The observed parameters are mean daily precipitation, wet days percentage, wet spell and dry spell with the future simulated climate data for the periods 2020’s, 2050’s and 2080’s. The differences can be recognized between the observed and simulated mean daily precipitation for the future periods 2020’s. The SDSM model is generally feasible and reliable for use in downscaling of precipitation in Perak, Malaysia. 2012-05 Thesis NonPeerReviewed application/pdf en http://eprints.utm.my/id/eprint/31519/1/HamedBenisiGhadimMFKA2012.pdf Ghadim, Hamed Benisi (2012) Simulation of future climate variations using global circulation model and downscaling model. Masters thesis, Universiti Teknologi Malaysia, Faculty of Civil Engineering. http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:72734?site_name=Restricted Repository
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
Ghadim, Hamed Benisi
Simulation of future climate variations using global circulation model and downscaling model
description Precipitation is the main cause of variability in the water balance over space and time on the earth surface, and changes in precipitation have important implications for hydrology and water resources. Precipitation varies in space and time as result of the general circulation patterns of atmospheric circulation and local factors. This study proposes the application Statistical Downscaling Model (SDSM) using three sets of data to investigate the climate variations. The data are the observed daily data of large-scale predictor variables, National Centre for Environmental Prediction (NCEP) and Global Circulation Model (GCM) simulations from Hadley Centre 3rd generation (HadCM3). The records of daily precipitation data (1961-1990) are from five stations namely, Ldg. Allagor, Pusat Kesihatan Kecil, Stn. Petak, Ldg. Gedong and Ldg. Gula. Those stations are located in Perak, Malaysia. The HadCM3 data starts from 1961 to 2099 were extracted for 30-year time slices. The results of SDSM downscaling model on precipitation have shown that the differences exist between current observed data and future periods (2020’s, 2050’s and 2080’s) for the five stations. The observed parameters are mean daily precipitation, wet days percentage, wet spell and dry spell with the future simulated climate data for the periods 2020’s, 2050’s and 2080’s. The differences can be recognized between the observed and simulated mean daily precipitation for the future periods 2020’s. The SDSM model is generally feasible and reliable for use in downscaling of precipitation in Perak, Malaysia.
format Thesis
author Ghadim, Hamed Benisi
author_facet Ghadim, Hamed Benisi
author_sort Ghadim, Hamed Benisi
title Simulation of future climate variations using global circulation model and downscaling model
title_short Simulation of future climate variations using global circulation model and downscaling model
title_full Simulation of future climate variations using global circulation model and downscaling model
title_fullStr Simulation of future climate variations using global circulation model and downscaling model
title_full_unstemmed Simulation of future climate variations using global circulation model and downscaling model
title_sort simulation of future climate variations using global circulation model and downscaling model
publishDate 2012
url http://eprints.utm.my/id/eprint/31519/1/HamedBenisiGhadimMFKA2012.pdf
http://eprints.utm.my/id/eprint/31519/
http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:72734?site_name=Restricted Repository
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score 13.209306