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Dissertations / Theses on the topic 'Annual rainfall'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Sreenivasan, K. R. "Structural Analysis And Forecasting Of Annual Rainfall Series In India." Thesis, Indian Institute of Science, 2001. https://etd.iisc.ac.in/handle/2005/262.

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The objective of the present study is to forecast annual rainfall taking into account the periodicities and structure of the stochastic component. This study has six Chapters. Chapter 1 presents introduction to the problem and objectives of the study. Chapter 2 consists of review of literature. Chapter 3 deals with the model formulation and development. Chapter 4 gives an account of the application of the model. Chapter 5 presents results and discussions. Chapter 6 gives the conclusions drawn from the study. In this thesis the following model formulations are presented in order to achiev

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Sreenivasan, K. R. "Structural Analysis And Forecasting Of Annual Rainfall Series In India." Thesis, Indian Institute of Science, 2001. http://hdl.handle.net/2005/262.

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The objective of the present study is to forecast annual rainfall taking into account the periodicities and structure of the stochastic component. This study has six Chapters. Chapter 1 presents introduction to the problem and objectives of the study. Chapter 2 consists of review of literature. Chapter 3 deals with the model formulation and development. Chapter 4 gives an account of the application of the model. Chapter 5 presents results and discussions. Chapter 6 gives the conclusions drawn from the study. In this thesis the following model formulations are presented in order to achieve th

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3

Moses, Godfrey. "The establishment of the long-term rainfall trends in the annual rainfall patterns in the Jonkershoek Valley, Western Cape, South Africa." Thesis, University of the Western Cape, 2008. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_6556_1263520811.

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<p>The overall aim of this project was to establish whether there is a long-term decline of rainfall collected in rainfall gauges within the Jonkershoek Valley that have the longest and best quality records.</p>

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Maldonado, Tito. "Inter-annual variability of rainfall in Central America : Connection with global and regional climate modulators." Doctoral thesis, Uppsala universitet, Luft-, vatten och landskapslära, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-304656.

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Central America is a region regularly affected by natural disasters, with most of them having a hydro-meteorological origin. Therefore, the understanding of annual changes of precipitation upon the region is relevant for planning and mitigation of natural disasters. This thesis focuses on studying the precipitation variability at annual scales in Central America within the framework of the Swedish Centre for Natural Disaster Science. The aims of this thesis are: i) to establish the main climate variability sources during the boreal winter, spring and summer by using different statistical techn

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5

Köchy, Martin. "Opposite trends in life stages of annual plants caused by daily rainfall variability : interaction with climate change." Universität Potsdam, 2006. http://opus.kobv.de/ubp/volltexte/2007/1469/.

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Global Circulation Models of climate predict not only a change of annual precipitation amounts but also a shift in the daily distribution. To improve the understanding of the importance of daily rain pattern for annual plant communities, which represent a large portion of semi-natural vegetation in the Middle East, I used a detailed, spatially explicit model. The model explicitly considers water storage in the soil and has been parameterized and validated with data collected in field experiments in Israel and data from the literature. I manipulated daily rainfall variability by increasing the

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Akachuku, A. E. "Intra-Annual Variation in Wood Density in Gmelina Arborea from X-Ray Densitometry and its Relationship with Rainfall." Tree-Ring Society, 1985. http://hdl.handle.net/10150/261361.

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The variation in wood density within growth rings was determined from X-ray negative images of wood samples of Gmelina arborea. The within-tree and between-tree comparisons showed that no two growth rings had exactly similar patterns of variation in the radial direction. The proportions of wood in four within-ring density classes were estimated. The variations in the proportions of wood in the four classes with age were nonlinear. On the average, the proportion of low density wood decreased with increasing age, while the proportion of high density wood increased with age. Regression analysis t

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7

MAZZOGLIO, PAOLA. "Geographically-based approaches to the statistical analysis of rainfall extremes." Doctoral thesis, Politecnico di Torino, 2022. https://hdl.handle.net/11583/2973799.

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Burns, Kit Alexander. "Characterisation of rhizobia for the new annual pasture legume Scorpiurus muricatus targeted for medium-to-low rainfall areas of southern Australia." Thesis, Burns, Kit Alexander (2019) Characterisation of rhizobia for the new annual pasture legume Scorpiurus muricatus targeted for medium-to-low rainfall areas of southern Australia. Honours thesis, Murdoch University, 2019. https://researchrepository.murdoch.edu.au/id/eprint/53975/.

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Legumes play an integral role in increasing agricultural productivity, particularly in low input agricultural systems in Australia, due to their ability to form symbiotic interactions with a group of soil bacteria called rhizobia. However, in medium-to-low rainfall areas of southern Australia, there is a lack of suitable annual pasture legumes, which is limiting agricultural productivity and profitability in these farming systems. Scorpiurus muricatus is an annual legume from the Mediterranean which possesses high nutritive value and palatability for livestock, is high yielding, capable of sel

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9

Smemoe, Christopher M. "Floodplain Risk Analysis Using Flood Probability and Annual Exceedance Probability Maps." Diss., CLICK HERE for online access, 2004. http://contentdm.lib.byu.edu/ETD/image/etd379.pdf.

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Mokhtarnejad, Siamak N. "Storm Water Management Using a High Density Rainfall Network Along With Long Term Records." ScholarWorks@UNO, 2008. http://scholarworks.uno.edu/td/903.

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The United States Weather Bureau had published Technical Paper No. 40 (TP-40) in 1961 which provides a rainfall atlas for the United States. These rainfall frequencies have been used by engineers throughout the United States including Jefferson Parish, Louisiana. Rainfall from Audubon and the New Orleans International Airport rain gauge stations were used with the Log Pearson Method to provide rainfall frequency for Jefferson Parish, Louisiana. The results from the frequency rainfall that were developed for this research along with the current Jefferson Parish design storm rainfall were

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11

Kabine, Ezekiel Simon. "Evaluation of different temperature winter fodder species (Festulolium hybrids, dactylis species, lolium hybrids) and grass-legume mixtures in the warmer summer rainfall areas of South Africa." Thesis, University of Limpopo, 2016. http://hdl.handle.net/10386/1808.

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Thesis (MSc. (Pasture Science)) -- University of Limpopo, 2016<br>South Africa is regarded as a semi-arid area; only 28% of the country receives more than 600 mm rainfall recorded annually. Sustainable utilization of cool season fodder grasses in summer rainfall areas to produce winter animal feed remains a major problem. Farmers are affected by a shortage of adequate, good quality herbage for livestock during winter and dry periods on commercial farms. The study aimed to evaluate and compare the production potential of six Festulolium hybrids, three Dactylis species, and five Lolium hybrids

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12

Alsadi, Aram. "Dynamiken hos organiskt kol i Mälarens avrinningsområde : flöden, drivande faktorer och modellering." Thesis, Uppsala universitet, Luft-, vatten och landskapslära, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-256490.

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I denna rapport undersöks hur mängden organiskt kol, TOC (Totalt organiskt kol), varierar i tid och rum i Mälarens avrinningsområde, samt vad det är som styr TOC-halten i Mälaren. Det är viktigt att förstå dynamiken hos TOC i Mälaren och i dess avrinningsområde eftersom ökat TOC i vattnet påverkar vattenkvaliteten och orsakar problem vid beredning av dricksvatten. TOC kan bland annat reagera med klor/UV-ljus och bilda cancerframkallande ämnen. Det kan också öka antal mikrober i vattnets distributionssystem. Arbetet omfattar analys av samband mellan elementen, transportberäkningar per ytenhet a

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Mahlalela, Precious. "Revisiting the links between the Southern Annular Mode and rainfall over the Western Cape region of South Africa." Master's thesis, University of Cape Town, 2018. http://hdl.handle.net/11427/29208.

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The winter rainfall region of South Africa displays considerable interannual variability and prevalence to prolonged dry periods. Although not completely understood, a wide range of factors have been highlighted to contribute to this interannual variability. The relatively poor understanding of rainfall variability in this region is of concern considering the low rainfall received in 2015-2017, resulting in the City of Cape Town enforcing severe water restrictions due to dam levels falling dangerously low. The focus of this thesis is on the influence of the Southern Annular Mode (SAM) on rainf

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14

Blumenthal, Barbara. "Nederbördsintensitet och andra faktorer som påverkar skyfallsskador." Licentiate thesis, Karlstads universitet, Centrum för klimat och säkerhet (from 2013), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-70173.

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I Sverige inträffar många skyfall och intensiva regn under sommarmånaderna. Det finns inga uppenbara geografiska mönster, vilket är en skillnad gentemot älv- eller sjööversvämningar där det vanligtvis är känt vilka områden som kan komma att översvämmas vid en viss vattennivå eller ett visst vattenflöde. För individer och samhällsaktörer innebär en skyfallshändelse i många fall en stor överraskning då skyfall utvecklas snabbt och dagens meteorologiska prognossystem i stort inte lyckas att prognosticera extrema regn korrekt med avseende på mängd, tid och plats. Vädervarningar kommer med kort var

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15

Chang, Chan-Hua, and 張展華. "Characteristics of Annual rainfall and Maximum one day rainfall in Kao-Ping Area." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/58162691719786829098.

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碩士<br>國立屏東科技大學<br>水土保持系<br>91<br>Five frequency analysis methods were used in this study for the Maximum one day rainfall and annual from the data issued by Central Weather Bureau(CWB) of weather observation station in December, 2000(5th edition) and data in annual book about 188 weather observation stations of CWB in Kaohsiung and Pingtung. As the results of analysis shown, it is suggested to use Pearson type Ⅲ method for predicting frequency analysis of annual rainfall in Kaohsiung City, Kaohsiung County, Pingtung County, and the whole region of Kaohsiung and Pingtung; for the Max

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16

林立恆. "Regional frequency analysis of annual maximum 24-hour rainfall." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/9wcbb3.

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碩士<br>逢甲大學<br>水利工程與資源保育學系<br>104<br>Regional analysis is a very important part of the design in hydraulic engineering. Base on measured data from the past,this study can find correlations between the stations.Therefore, regional analysis solve the situation inadequate data, and creates a partition for each of rainfall in Taiwan. This study used two cluster approaches, Cluster analysis and self-organizing map (SOM) with the reference of 127 raingauge data (recorded over 20-years). Hydrological factors presented annual maximum 24-hour rainfall data (mean, standard deviation, skewness and kur

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Wen-HongHuang and 黃文宏. "Trend and distribution-change analysis of annual rainfall in Taiwan." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/81473423351194911447.

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碩士<br>國立成功大學<br>水利及海洋工程學系碩博士班<br>101<br>Extreme climatic events have frequently observed in Taiwan recently. Such unusual extreme events often cause severe economic damages. Many studies report that intensified events caused by climate change are occurred frequently. Declining rainfall would induce insufficient water supplies, while increasing rainfall would cause flooding. Understanding trend of rainfall characteristics thus becomes an important task in water resources planning and management. This study aims to detect trend and distribution-change of annual rainfall by using statistical meth

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18

Frost, Andrew James. "Spatio-temporal hidden Markov models for incorporating inter-annual variability in rainfall." Diss., 2004.

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Thesis (Ph. D.) -- University of Newcastle, 2004.<br>School of Engineering. Discipline of Civil, Surveying and Environmental Engineering. Includes bibliographical references (leaves 205 - 217). Also available online.

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19

Wu, Zheng Ji, and 吳正吉. "Study on regional frequency analysis for annual maximun daily rainfall of southern Taiwan." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/74234249607040395665.

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20

LIU, ZHEN-ZHONG, and 劉振忠. "A study of hydrologic frequency analysis in Taiwan (annual maximum rainfall and streamflow)." Thesis, 1991. http://ndltd.ncl.edu.tw/handle/15306140112081053125.

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21

Fan, Chen-Shuo, and 范辰碩. "Inter-annual Rainfall Variability of Specific Area In The Eastern Equatorial Pacific Ocean." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/jeeyw7.

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碩士<br>國立中央大學<br>大氣科學學系<br>105<br>This research is inspired by Floating City Project which is going to be implemented by American and Netherland Cooperated Institution in 2020. The floating city has been planned to construct over the eastern equatorial Pacific Ocean near Central America in the project. Consider to the future water resource problem of the floating city, this research is dedicated to understand inter-annual precipitation variation over Target Area (6N-12N, 86W-94W) in rainy season. Target Area is actually a place where the floating city would be built in 2020. In this research, c

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22

Pei-SyunWu and 巫佩勳. "Exploring nonstationary characteristics of distributions of annual rainfall indices in Taiwan using GAMLSS." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/eama56.

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碩士<br>國立成功大學<br>水利及海洋工程學系<br>107<br>Global climate change would induce changes of the rate of hydrologic cycles and intensify the frequency and intensity of hydrologic extreme events. Changes in rainfall characteristics lead to the hypothesis of stationary in traditional hydrologic analysis no longer applicable. Nonstationary analysis of rainfall characteristics thus becomes one of the important issues in water resources management. In this study, the generalized additive models for location, scale, and shape (GAMLSS) is adopted for the nonstationary analysis of the annual rainfall indices in

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23

Singh, Charu. "The Changing Nature Of Rainfall Annual Cycle And The Propagation Characteristics Of The Intraseasonal Oscillations In Flood And Drought Years Of The Indian Monsoon." Thesis, 2008. https://etd.iisc.ac.in/handle/2005/850.

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Using a 50-year (1951-2000) gridded (1-degree) daily rainfall data set over the Indian land region, we study two main aspects of the Indian monsoon. The first aspect deals with the changing nature of the rainfall annual cycle. This, to our knowledge, is the first attempt at studying the changing behaviour of the Indian monsoon rainfall annual cycle in a systematic way. The annual cycle is defined as a combination of the first few Fourier harmonics of daily rainfall. We then identify five attributes of the annual cycle for each year and location (grid): (a) the day of maximum intensity (peak

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Singh, Charu. "The Changing Nature Of Rainfall Annual Cycle And The Propagation Characteristics Of The Intraseasonal Oscillations In Flood And Drought Years Of The Indian Monsoon." Thesis, 2008. http://hdl.handle.net/2005/850.

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Using a 50-year (1951-2000) gridded (1-degree) daily rainfall data set over the Indian land region, we study two main aspects of the Indian monsoon. The first aspect deals with the changing nature of the rainfall annual cycle. This, to our knowledge, is the first attempt at studying the changing behaviour of the Indian monsoon rainfall annual cycle in a systematic way. The annual cycle is defined as a combination of the first few Fourier harmonics of daily rainfall. We then identify five attributes of the annual cycle for each year and location (grid): (a) the day of maximum intensity (peak

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Kanetsi, Khahiso. "Annual peak rainfall data augmentation - A Bayesian joint probability approach for catchments in Lesotho." Thesis, 2017. https://hdl.handle.net/10539/25567.

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A research report submitted to the Faculty of Engineering and the Built Environment, University of the Witwatersrand, Johannesburg, in fulfilment of the requirements for the degree of Master of Science in Engineering, 2017<br>The main problem to be investigated is how short duration data records can be augmented using existing data from nearby catchments with data with long periods of record. The purpose of the investigation is to establish a method of improving hydrological data using data from a gauged catchment to improve data from an ungauged catchment. The investigation is undertaken usi

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Mashinye, Mosedi Deseree. "Long term seasonal and annual changes in rainfall duration and magnitude in Luvuvhu River Catchment, South Africa." Diss., 2018. http://hdl.handle.net/11602/1152.

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MESHWR<br>Department of Hydrology and Water Resources<br>This study was aimed at investigating the long term seasonal and annual changes in rainfall duration and magnitude at Luvuvhu River Catchment (LRC). Rainfall in this catchment is highly variable and is characterised of extreme events which shift runoff process, affect the timing and magnitude of floods and drought, and alter groundwater recharge. This study was motivated by the year to year changes of rainfall which have some effects on the availability of water resources. Computed long term total seasonal, annual rainfall and total numb

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27

Huang, Liang-Yun, and 黃亮芸. "Frequency Analysis of Annual Maximum 1-Day Rainfall for Ungauged Sites in Taiwan Using Regionalization Approach." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/79724791308063577030.

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碩士<br>淡江大學<br>水資源及環境工程學系碩士班<br>95<br>The purpose of the study aims to estimate frequencies of annual maximum 1-day rainfall for ungauged sites in Taiwan using regionalization approach. The index flood method with parameters estimated by L-moments is used to establish the regional frequency model. Kriging is then employed to estimate the mean annual maximum 1-day rainfall of ungauged sites in order to analyze the rainfall magnitudes of various frequencies. Delineation of homogeneous regions is determined by cluster analysis in this study based on the coordinates of the rainfall gauge station

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28

LIN, JIAN-YI, and 林賢義. "Studies on hydrologic frequency analysis in Taiwan (Annual maximum 1-hr., 2-hr.,3-hr. rainfall)." Thesis, 1992. http://ndltd.ncl.edu.tw/handle/47930029565003731701.

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Frost, Andrew James. "Spatio-temporal hidden Markov models for incorporating interannual variability in rainfall." Thesis, 2004. http://hdl.handle.net/1959.13/24868.

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Two new spatio-temporal hidden Markov models (HMM) are introduced in this thesis, with the purpose of capturing the persistent, spatially non-homogeneous nature of climate influence on annual rainfall series observed in Australia. The models extend the two-state HMM applied by Thyer (2001) by relaxing the assumption that all sites are under the same climate control. The Switch HMM (SHMM) allows at-site anomalous states, whilst still maintaining a regional control. The Regional HMM (RHMM), on the other hand, allows sites to be partitioned into different Markovian state regions. The analyses wer

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30

Frost, Andrew James. "Spatio-temporal hidden Markov models for incorporating interannual variability in rainfall." 2004. http://hdl.handle.net/1959.13/24868.

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Two new spatio-temporal hidden Markov models (HMM) are introduced in this thesis, with the purpose of capturing the persistent, spatially non-homogeneous nature of climate influence on annual rainfall series observed in Australia. The models extend the two-state HMM applied by Thyer (2001) by relaxing the assumption that all sites are under the same climate control. The Switch HMM (SHMM) allows at-site anomalous states, whilst still maintaining a regional control. The Regional HMM (RHMM), on the other hand, allows sites to be partitioned into different Markovian state regions. The analyses wer

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31

Réis, Délia Canha Gouveia. "Statistical modelling of extreme rainfall in Madeira Island." Doctoral thesis, 2014. http://hdl.handle.net/10400.13/869.

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Extreme rainfall events have triggered a signiﬁcant number of ﬂash ﬂoods in Madeira Island along its past and recent history. Madeira is a volcanic island where the spatial rainfall distribution is strongly aﬀected by its rugged topography. In this thesis, annual maximum of daily rainfall data from 25 rain gauge stations located in Madeira Island were modelled by the generalised extreme value distribution. Also, the hypothesis of a Gumbel distribution was tested by two methods and the existence of a linear trend in both distributions parameters was analysed. Estimates for the 50– and 100–year

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Hou, Ju-Chen, and 侯如真. "A Frequency-Factor Based Approach for Bivariate Gamma Simulation and Its Application for Assessment of Climate Change Impact on Annual Typhoon Rainfall." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/30389918061073903260.

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博士<br>臺灣大學<br>生物環境系統工程學研究所<br>98<br>Many studies related to climate change focused on global, continental or regional scale effect in space and annual or seasonal scale effect in time. However, for practical planning and engineering design, it is necessary to deal with local (spatial) and event (temporal) scales. However, the mathematical expressions of many previous stochastic simulation models are complex with a large number of parameters to be calibrated from the observed rainfall data and have computational limitations. In this dissertation, a continuous stochastic storm-rainfall simulatio

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CHEN, XIU-JUAN, and 陳秀娟. "Studies on Wakeby distribution and its application on the annual 1-day, 2-day and 3-day maximum rainfalls in Taiwan area." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/45224137978327178894.

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碩士<br>淡江大學<br>水資源及環境工程研究所<br>81<br>Houghton(1978)提出威克拜分布(Wakeby Distribution) ，本研究將其與頻率分析中常用之分布(TN、LN2、LN3、EV1、PT3及LPT3)作一詳盡之比較，究中使用合成資以模擬各迴歸周期之理論值及模擬隨機樣本值兩者來探討威克拜分布之性，並分析台灣年一日、二日及三日最大暴兩量，探討威克拜分布之適用性。合成資之研究結果顯示威克拜分布無論於推估各頻率理論值或擬合樣本值上，其精確度均較六種常用分布為高，同時，實測資料研究結果亦顯示威克拜分布較其他常用分布更適合模擬台灣暴雨資

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