Dissertations / Theses on the topic 'Annual rainfall'
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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.
Full textMoses, 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.
Full textThe 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.
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.
Full textKöchy, 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/.
Full textAkachuku, 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.
Full textBurns, 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/.
Full textSmemoe, 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.
Full textMokhtarnejad, 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.
Full textKabine, 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.
Full textSouth 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 and three grass-legume mixtures in the summer rainfall area. A total of 17 cultivars were evaluated for their DM production under the treatment of different fertilizer levels on three planting dates (16 March 2011, 21 April 2011 and 4 April 2012). The study was carried out at Hygrotech Seed Company (Experimental site), Dewagensdrift in Moloto Village outside Pretoria in the Gauteng Province. Data was collected on a monthly basis from sub-plots of 1 m x 1 m (m2) in 51 plots of 1.5 m x 6 m (9 m2), with nine rows that were 10 cm apart arranged under RCBD with three replicates per cultivar. Harvested fresh samples were taken, weighed, dried at 60ºC until they reached a constant dry weight and weighed to determine DM content. A Fischer’s protected LSD at the 5 % level was performed to compare the treatment means. Over a period of three years of study, it shows that the low fertilizer level resulted in the lowest DM production, with no significant difference occurring between medium and high fertilizer levels. To achieve optimum DM production with minimum cost medium fertilizer is recommended. The cultivars responded differently to the three different planting dates. The time of planting had an effect on DM production in winter. It is recommended that Festulolium hybrids and Lolium hybrids be planted earlier (March) for better DM production in winter.
National Research Foundation (NRF)
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.
Full textIn this report, it has been investigated how the amount of organic carbon, TOC, varies in time and space in the basin of Mälaren, and what controls the TOC content in the lake. It is important to understand the dynamics of the TOC in the lake and its catchment because increased TOC in the water affects water quality and causes problems in the preparation of drinking water. Particularly, it can react with chlorine / UV- light and form carcinogenic substances. It can also increase the number of microbes in water distribution systems. In addition the work includes analysis of the relation between water chemistry variables, annual fluxes calculations (g/m2/year) of element flows to the lake and a modeling approach to a watershed. Annual fluxes calculations (g/m2/year) indicate that the largest supply of TOC to the lake comes from the northeast of the lake. Fyrisån accounts for the largest input of TOC to the lake. The high TOC-flux is due to a small proportion of open water in the catchment. Hydrological, chemical and meteorological data have been included in models to estimate the TOC content in the Mälaren. Input data processing, especially precipitation data, has been an important part of the work as it affects the whole model. Temperature, evapotranspiration and precipitation data were used in a hydrological model, HBV model, to simulate the flow from the catchment area. Then a process-based model, INCA-C, operated by the hydrological data and soil moisture, has been used to simulate the temporal patterns in TOC. The input variables to INCA-C- model, soil moisture and HER (Hydrological effective rainfall), have been simulated using the HBV- model. Those models were applied in Kolbäcksån, one of the lake's largest catchments. The modeling of Kolbäcksån resulted in a model that captured the dynamics of a few periods of the whole time series. The modeling of Kolbäcksån TOC-concentration resulted in a model that captured the dynamics between 1996 and 2009, but misses it between 2009 and June 2010. R2 and NS values obtained for the model were 0.086 and -0.059, respectively.
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.
Full textBlumenthal, 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.
Full textChang, 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.
Full text國立屏東科技大學
水土保持系
91
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 Maximum one day rainfall,Log Natural Distribution for predicting frequency analysis is suggested to use in Kaohsiung City, Log Pearson type Ⅲ method in Kaohsiung County, Pingtung County, and the whole region of Kaohsiung and Pingtung. Based on the distributions from applicable theories, the most applicable theory for each station was found. Then, use the hydrological frequency analysis to estimate the hydrological parameters of 5-yr, 20-yr, 25-yr, 50-yr and 100-yr, and draw the rainfall contour map accordingly for the reference for different requirements. The rainfall contour map shows that the rainfall increases as the elevation increases, but it is hard to estimate the increase rate. By taking each village, town, city and district as the regional units, the frequency regression equations, R squares and standard deviations were obtained, which can provide the relevant engineers an easy way to obtain the hydrological parameters for the reference of construction design. As for the relationship of rainfalls and elevations of station, it can be found from the results of this study that the more the year number of record, the closer the relationship between the average annual rainfall and the maximum one day rainfall. Therefore, as the year number of record increases, the reliability of the hydrological frequency analysis increases. However, the average annual rainfall and the maximum one day rainfall increase as the elevation of the stations increases, but there is no fixed increase trend. The average annual rainfall and maximum one day rainfall have no conspicuous relationship with the elevations of the stations. Especially, the relationship of the maximum one day rainfall and the elevation is worse.
林立恆. "Regional frequency analysis of annual maximum 24-hour rainfall." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/9wcbb3.
Full text逢甲大學
水利工程與資源保育學系
104
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 kurtosis), and Physiographical factor displayed station locations and elevation.After this study established each rainfall characteristics partitions, this study detected partition information by L-moment method.The results showed that after adjusting rainfall characteristics data, the two classifications were likely uniformity. Next, this study used the goodness-of-fit measurement to select the best regional probability distributions of rainfall.The Cluster Analysis results show that the best regional probability distribution for 2 normal distribution ,the Gumbel I and the Pearson type III distribution were the best for 1 region.On the other hand, SOM only shows 3 normal distributions and 2 Gumbel I distributions.Finally, this study used SOM results and with Thiessen polygons method dividing Taiwan rainfall characteristics into several partition. In the absence of rainfall frequency analysis information, this storm frequency analysis results will provide a reference for the design of future project planning.
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.
Full text國立成功大學
水利及海洋工程學系碩博士班
101
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 methods, including linear regression, Mann-Kendall test, and quantile regression. The data used in this study is the annual rainfall with at least 54 years (from 1947 to 2000) of 23 rainfall gauge stations in Taiwan. Quantile regression can identify the linear regression lines at various quantiles. An approach is proposed in this study to integrate changes of all quantiles from quantile regression model in terms of changes of probability density function (PDF) to detect distributional changes of annual rainfall. Linear regression and Mann-Kendall test show that the Taipei station has an increasing trend, while Wukuai, Likang, and Tawu have descending trend. The results of quantile regression also show that the above 4 stations have significant trend at some quantiles. There are 19 stations exhibit non-significant trend by the linear regression model and Mann-Kendall test. However, significant trend at some quantiles are observed by quantile regression for 7 stations. That is, such trends are not detected by linear regression model and Mann-Kendall test. In terms of PDF-change, the PDF of annual rainfall in North region has no shift, the PDF in Central and South regions has leftward shift and concentrates in a narrower rage, and half of PDF in East region has no shift and the other half PDF has left shift.
Frost, Andrew James. "Spatio-temporal hidden Markov models for incorporating inter-annual variability in rainfall." Diss., 2004.
Find full textSchool of Engineering. Discipline of Civil, Surveying and Environmental Engineering. Includes bibliographical references (leaves 205 - 217). Also available online.
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.
Full textLIU, 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.
Full textFan, 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.
Full text國立中央大學
大氣科學學系
105
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, climatology rainy season of Target Area has been classified as three periods. Period-1, Period-2 and Period-3 are represent of May-June, July-August and September-October respectively. Wet years and dry years are picked up in each period, then analysis of atmospheric and oceanic gridded datasets would be conducted through composite analysis method according to these wet and dry years. Follow the diagnostic results of moisture budget over Target Area, Period-1 and Period-2 has dry advection and downward motion anomaly contribution for less precipitation in Dry year. Conversely, wet advection and upward motion anomaly contributed for more precipitation in Wet year. With regard to Period-3, contribution intensity of vertical motion anomaly is much higher than Period-1 and Period-2, but for advection term contribution is much less than former two periods. From the results of correlation analysis between global sea surface temperatures (SST) and Target Area precipitation, precipitation has found to have related with Pacific and Atlantic SST. Therefore, this research further applied Empirical Orthogonal Function (EOF) with SST datasets to separate out the most three significant climate oscillation signals of Pacific and Atlantic Ocean. Through correlation and multi-regression analysis of climate oscillation signals and precipitation, Period-1 and Period-2 precipitation are demonstrated that affected by Central Pacific ENSO (CP), Eastern Pacific ENSO (EP) and North Atlantic Oscillation (NAO). When getting into Period-3, precipitation only affected by CP and EP in this time. Especially for Walker Circulation variation during CP and EP events, Atlantic Subtropical High variation during NAO event, these phenomenon are the main cause of vertical motion and advection anomaly contribution, it is also consistent with the diagnostic results of moisture budget.
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.
Full text國立成功大學
水利及海洋工程學系
107
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 Taiwan. Ten annual rainfall indices are used to detect alterations of the magnitude, duration, and extreme of annual rainfall regime at eight rainfall stations in the north, central, south, and east regions of Taiwan. The results indicate that 55% of the annual rainfall indices are nonstationary, and the characteristics of regional similarities are not found in most of the annual rainfall indices. Trends of some annual rainfall indices are observed at different stations. Annual 1-day maximum rainfall and annual 2-day maximum rainfall have upward trend in the past 30 years at Taipei, Hengchun, and Dawu stations. Annual maximum consecutive rain days has downward changes in the south and east regions. Daily rainfall intensity has rising trend in the past 40 years at most stations except for Sun Moon Lake and Chengkung stations. Annual dry days has increasing trend at Taipei, Hengchun, and Dawu stations, while the downward trend in recent years has been observed at Yilan, Taichung, and Chengkung stations in recent years.
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.
Full textKanetsi, Khahiso. "Annual peak rainfall data augmentation - A Bayesian joint probability approach for catchments in Lesotho." Thesis, 2017. https://hdl.handle.net/10539/25567.
Full textThe 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 using rainfall data for catchments in Lesotho. Marginal distributions describing the annual maximum rainfall for the catchments, and a joint distribution of pairs of catchments were established. The parameters of these distributions were estimated using the Bayesian – Markov Chain Monte Carlo approach, and using both the single-site (univariate) estimation and the two-site (bivariate) estimations. The results of the analyses show that for catchments with data with short periods of record, the precision of the estimated location and scale parameters improved when the estimates were carried out using the two-site (bivariate) method. Rainfall events predicted using bivariate analyses parameters were generally higher than the univariate analyses parameters. From the results, it can be concluded that the two-site approach can be used to improve the precision of the rainfall predictions for catchments with data with short periods of record. This method can be used in practice by hydrologists and design engineers to enhance available data for use in designs and assessments.
CK2018
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.
Full textDepartment of Hydrology and Water Resources
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 number of seasonal rainy days were used to identify trends for the period of 51 years (1965- 2015), using Mann Kendal (MK), linear regression (LR) and quantile regression methods. The MK, LR and quantile regression methods have indicated dominance of decreasing trends of the annual, seasonal rainfall and duration of seasonal rainfall although they were not statistically significant. However, statistical significant decreasing trends in duration of seasonal rainfall were identified by MK and LR at Matiwa, Palmaryville, Levubu, and Entabeni Bos stations only. Quantile regression identified the statistically significant decreasing trends on 0.2, 0.5 and 0.7 quantiles only in the Palmaryville, Levubu and Entabeni Bos, respectively. Stations with non-statistically significant decreasing trends of annual and seasonal rainfall had magnitude of change ranging from 0.12 to 12.31 and 0.54 to 6.72 mm, respectively. Stations with non-statistically increasing trends of annual and seasonal rainfall magnitude had positive magnitude of change ranging from 1.51 to 6.78 and 2.05 to 6.51 mm, respectively. The Study recommended further studies using other approaches to determine the duration of rainfall to improve, update and compare the results obtained in the current study. Continuous monitoring and installation of rain gauges are recommended on the lower reaches of the catchment for the findings to be of complete picture for the whole catchment and to also minimize the rainfall gaps in the stations. Water resources should be used in a sustainable way to avoid water crisis risk in the next generations.
NRF
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.
Full text淡江大學
水資源及環境工程學系碩士班
95
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 stations, the means and coefficient of variation of the annual maximum 1-day rainfall. The L-moment based discordancy, heterogeneity, and goodness-of-fit measures are then used to detect unusual sites and select the optimal regional probability models. In this study, a total of 77 rainfall gauge stations are used as the basis to estimate the frequencies of the annual maximum 1-day rainfall for ungauged sites. The number of homogeneous regions derived by cluster analysis is 3. The best regional probability model for one region is Pearson type Ⅲ distribution, and generalized Pareto distribution is the best model for the other two regions. Frequency analysis for ungauged sites needs to establish the variogram models of the mean and coefficient of variation of the annual maximum 1-day rainfall first. The obtained variogram models is then used to estimate the mean annual maximum 1-day rainfall for the ungauged sites. The ungauged sites belong to which homogeneous region depend on the minimum distance to the centroid of the homogeneous regions. Combined with the derived regional frequency model and estimated mean annual maximum 1-day rainfall, the computing procedures of frequency analysis for ungauged sites are identical with the procedures of gauged sites.
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.
Full textFrost, Andrew James. "Spatio-temporal hidden Markov models for incorporating interannual variability in rainfall." Thesis, 2004. http://hdl.handle.net/1959.13/24868.
Full textPhD Doctorate
Frost, Andrew James. "Spatio-temporal hidden Markov models for incorporating interannual variability in rainfall." 2004. http://hdl.handle.net/1959.13/24868.
Full textPhD Doctorate
Réis, Délia Canha Gouveia. "Statistical modelling of extreme rainfall in Madeira Island." Doctoral thesis, 2014. http://hdl.handle.net/10400.13/869.
Full textHou, 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.
Full text臺灣大學
生物環境系統工程學研究所
98
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 simulation model (SRSM) is presented to accommodate the aforementioned scales and provide quantitative assessment of the impact on annual typhoon rainfall under given scenarios of climate change. The SRSM is a parametric stochastic simulation model which considers random processes of four major storm types: frontal rainfall, Mei-Yu, convective storms and typhoons occurring annually in Taiwan. Random process of a storm rainfall event is characterized by (1) inter-arrival time of storm events and (2) joint probability distribution of storm duration and total rainfall depth. Occurrences of storm events of a certain storm type can be modeled as a Poisson process and the inter-arrival time is modeled as a random variable with exponential distribution. A frequency-factor based bivariate gamma distribution model is proposed for generating random sample pairs (duration and total depth), which have not only the desired marginal densities of component random variables but also their correlation coefficient. Under certain scenarios of climate change, i.e. when the average number of typhoon events for the study site increases or decreases, we can assess the impact of climate change on annual typhoon rainfall from a stochastic point of view.
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.
Full text淡江大學
水資源及環境工程研究所
81
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