Дисертації з теми "Annual maxima"
Оформте джерело за APA, MLA, Chicago, Harvard та іншими стилями
Ознайомтеся з топ-31 дисертацій для дослідження на тему "Annual maxima".
Біля кожної праці в переліку літератури доступна кнопка «Додати до бібліографії». Скористайтеся нею – і ми автоматично оформимо бібліографічне посилання на обрану працю в потрібному вам стилі цитування: APA, MLA, «Гарвард», «Чикаго», «Ванкувер» тощо.
Також ви можете завантажити повний текст наукової публікації у форматі «.pdf» та прочитати онлайн анотацію до роботи, якщо відповідні параметри наявні в метаданих.
Переглядайте дисертації для різних дисциплін та оформлюйте правильно вашу бібліографію.
MAZZOGLIO, PAOLA. "Geographically-based approaches to the statistical analysis of rainfall extremes." Doctoral thesis, Politecnico di Torino, 2022. https://hdl.handle.net/11583/2973799.
Повний текст джерелаHesarkazzazi, Sina. "Stationary vs. non-stationary modeling of flood frequency distribution across North West England (UK)." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018.
Знайти повний текст джерелаvon, Schantz Carl. "Attack effectively first, plattityd eller maxim?" Thesis, Försvarshögskolan, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:fhs:diva-10103.
Повний текст джерелаScheffler, Jörg Uwe. "Bestimmung der maximal zulässigen Netzanschlussleistung photovoltaischer Energiewandlungsanlagen in Wohnsiedlungsgebieten." Doctoral thesis, Universitätsbibliothek Chemnitz, 2002. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-200201319.
Повний текст джерелаFür den Betrieb des öffentlichen Niederspannungsnetzes in Wohnsiedlungsgebieten ist zukünftig mit einem verstärkten Einsatz dezentraler photovoltaischer Energiewandlungsanlagen zu rechnen. Für Netzbetreiber ist es erforderlich, die maximal zulässige Netzanschlussleistung derartiger Anlagen für Niederspannungs-Netzbezirke zu bestimmen. Dazu wird ein Verfahren auf der Grundlage der Modellierung der Struktur von Netzbezirken, der dort auftretenden Belastungen und Einstrahlungssituationen vorgestellt und demonstriert. Die maximal zulässige Netzanschlussleistung dezentraler photovoltaischer Energiewandlungsanlagen wird wesentlich durch die Siedlungsstruktur des betreffenden Niederspannungs-Netzbezirkes bestimmt. Durch Modifikation des Erzeugermodelles kann das Verfahren auch für andere dezentrale Kleinerzeuger im Niederspannungsnetz angewandt werden
Rönnlund, Elias. "Predictive modeling med maximal entropi för att förutsäga platser med fornnordisk bosättning." Thesis, Högskolan i Gävle, Datavetenskap, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-36239.
Повний текст джерелаMateus, Gustavo Pavan [UNESP]. "Doses de nitrogênio na cultura do milho e do sorgo em consórcio com forrageiras." Universidade Estadual Paulista (UNESP), 2007. http://hdl.handle.net/11449/99917.
Повний текст джерелаConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
A consorciação do milho e sorgo com gramíneas forrageiras pode ser utilizada tanto para a formação de pastagens, como a formação de cobertura morta no sistema de semeadura direta. Dentre os nutrientes aplicados nas fertilizações destaca-se o nitrogênio, devido ser o nutriente absorvido em maior quantidade pelas culturas e o que mais influencia na produtividade de grãos, tendo sua dinâmica no sistema solo-planta condicionada pelo manejo. O trabalho de pesquisa constou de dois experimentos que foram instalados na Fazenda Experimental Lageado da Faculdade de Ciências Agronômicas – Campus de Botucatu, num Latossolo Vermelho, cultivado há aproximadamente 5 anos em sistema de semeadura direta. O objetivo dos experimentos foi avaliar o efeito da adubação nitrogenada na cultura do milho e do sorgo no sistema de cultivo solteiro e consorciado com Brachiaria brizantha e Panicum maximum em sistema de semeadura direta e o posterior desempenho das forrageiras. O delineamento experimental foi o de blocos casualizados, em esquema de parcelas subdivididas, com quatro repetições. As parcelas foram representadas por três sistemas de cultivo da cultura produtora de grãos (cultivo solteiro, cultivo com B. brizantha na linha de semeadura e cultivo com P. maximum na linha de semeadura ) e as subparcelas por quatro doses de nitrogênio em cobertura (0, 50, 100 e 200 kg ha-1 de N). Foram avaliados os atributos químicos do solo, as características agronômicas da cultura, os componentes de produção, a diagnose foliar e a produtividade de grãos, além da produção de massa de matéria seca das forrageiras após a colheita da cultura. Tanto para a cultura do milho quanto para o sorgo pode-se inferir que o cultivo consorciado, desde que seja implantado e manejado adequadamente não afeta a produção de grãos em razão de...
Corn and sorghum intercropped with grass can be used both to pasture formation and to soil cover formation in no-tillage system. Nitrogen is prominent among the nutrients applied in fertilizations, because nitrogen is the most absored nutrient by crops and most affect the grains yield, and its dynamic in soil-plant system is conditioned by management. The research consisted of two experiments that were carried out at Lageado Experimental Farm, of Agricultural Science College, campus of Botucatu, in Red Latosol (Oxisol), cultivated to five years in no-tillage system. The objective of this work was to evaluate the effect of nitrogen fertilization on corn and sorghum and Brachiaria brizantha and Panicum maximum intercrops in no-tillage system, and the behavior of forages. The experimental design was in randomized blocks with split plot analyses, with four replications. The plot treatments consisted of three modalities of tillage of corn and sorghum (single crop, intercrop with B. brizantha in the row of sowing or and with P. maximum in the row of sowing) and the split plot of four nitrogen rates (0, 50, 100, and 200 kg ha-1 N). It was evaluated the soil chemical attributes, the agronomical characteristics of crop, grains yield, leaf macronutrients content and forages yield. The intercrop system did not affect grain yield of corn and sorghum, because it did not cause negative effects in plant nutrition and growth. Nitrogen fertilization affected grains yield of corn and sorghum independently of the cultivation system. The residual effect of nitrogen applied on corn and sorghum caused an increased forage yield of B. brizantha and P. maximum. No difference was observed among the soil chemical attributes due to different cultivation systems, because of the high fertility of the soil. The highest net...(Complete abstract click electronic access below)
Grundberg, Staffan. "Radio Netwok Test Configuration for Maximum Test Coverage : Model based load generation in system verification of a GSM Base Station Controller." Thesis, Linköpings universitet, Kommunikationssystem, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-82023.
Повний текст джерелаNilsson, Pontus, and Jan Tordsson. "Improved lifetime of a rubber spring in an articulated hauler through product development." Thesis, Linnéuniversitetet, Institutionen för maskinteknik (MT), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-65832.
Повний текст джерелаHolm, Emelie. "Vattenanvändning hos samhällsbrukare : En studie om flöden och maxfaktorer för en förbättrad dimensionering." Thesis, Institutionen för energi och teknik, Sveriges lantbruksuniversitet, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-324612.
Повний текст джерелаFor water to be delivered according to the requirements of the users in the society there is a need for the water pipelines to be well dimensioned. This means that the amount of water that is needed has to be available at the time when it is required. For the water treatment plants to be able to deliver the right amount of water the pipelines must be sized to carry the water that should be delivered to the users. This requires a good estimate of the amount of water needed. The expected water flow to different users is estimated based on existing water usage patterns as well as the P83 publication, developed by Swedish Water. As society develops the publication may need to be updated to correspond well with reality. Water use patterns in schools, offices, retail stores and industries were examined as a part of an ongoing project to investigate whether P83 should be updated. For these annual and diurnal variations, water flows and max factors were analyzed from yearlong series of measurements. Based on the measured values alternate allocation keys that could potentially contribute to improvement were analyzed. The results suggest that there are possible improvements for flow calculations for schools, retail stores and industry compared to current methods. For schools and retail stores the indoor area would be a relevant variable to use for calculations, while the roof area would be a more appropriate variable to use for industries. The max factors listed in P83 did not agree with those measured in the study and would need to be updated. The study shows that the three categories used in P83 are very general and ought to be divided into more specific categories. Furthermore, the possibility to combine different types of water users to equalize the water flow to an area during the day was analyzed. Villas or semi-attached houses should preferably be combined with schools, offices or industries for evening out the flow during day time.
Mateus, Gustavo Pavan 1976. "Doses de nitrogênio na cultura do milho e do sorgo em consórcio com forrageiras /." Botucatu : [s.n.], 2007. http://hdl.handle.net/11449/99917.
Повний текст джерелаBanca: Ciro Antonio Rosolem
Banca: Salatier Buzetti
Banca: Heitor Cantarella
Banca: Waldo Alejandro Ruben Cabezas
Resumo: A consorciação do milho e sorgo com gramíneas forrageiras pode ser utilizada tanto para a formação de pastagens, como a formação de cobertura morta no sistema de semeadura direta. Dentre os nutrientes aplicados nas fertilizações destaca-se o nitrogênio, devido ser o nutriente absorvido em maior quantidade pelas culturas e o que mais influencia na produtividade de grãos, tendo sua dinâmica no sistema solo-planta condicionada pelo manejo. O trabalho de pesquisa constou de dois experimentos que foram instalados na Fazenda Experimental Lageado da Faculdade de Ciências Agronômicas - Campus de Botucatu, num Latossolo Vermelho, cultivado há aproximadamente 5 anos em sistema de semeadura direta. O objetivo dos experimentos foi avaliar o efeito da adubação nitrogenada na cultura do milho e do sorgo no sistema de cultivo solteiro e consorciado com Brachiaria brizantha e Panicum maximum em sistema de semeadura direta e o posterior desempenho das forrageiras. O delineamento experimental foi o de blocos casualizados, em esquema de parcelas subdivididas, com quatro repetições. As parcelas foram representadas por três sistemas de cultivo da cultura produtora de grãos (cultivo solteiro, cultivo com B. brizantha na linha de semeadura e cultivo com P. maximum na linha de semeadura ) e as subparcelas por quatro doses de nitrogênio em cobertura (0, 50, 100 e 200 kg ha-1 de N). Foram avaliados os atributos químicos do solo, as características agronômicas da cultura, os componentes de produção, a diagnose foliar e a produtividade de grãos, além da produção de massa de matéria seca das forrageiras após a colheita da cultura. Tanto para a cultura do milho quanto para o sorgo pode-se inferir que o cultivo consorciado, desde que seja implantado e manejado adequadamente não afeta a produção de grãos em razão de ...(Resumo completo, clicar acesso eletrônico abaixo)
Abstract: Corn and sorghum intercropped with grass can be used both to pasture formation and to soil cover formation in no-tillage system. Nitrogen is prominent among the nutrients applied in fertilizations, because nitrogen is the most absored nutrient by crops and most affect the grains yield, and its dynamic in soil-plant system is conditioned by management. The research consisted of two experiments that were carried out at Lageado Experimental Farm, of Agricultural Science College, campus of Botucatu, in Red Latosol (Oxisol), cultivated to five years in no-tillage system. The objective of this work was to evaluate the effect of nitrogen fertilization on corn and sorghum and Brachiaria brizantha and Panicum maximum intercrops in no-tillage system, and the behavior of forages. The experimental design was in randomized blocks with split plot analyses, with four replications. The plot treatments consisted of three modalities of tillage of corn and sorghum (single crop, intercrop with B. brizantha in the row of sowing or and with P. maximum in the row of sowing) and the split plot of four nitrogen rates (0, 50, 100, and 200 kg ha-1 N). It was evaluated the soil chemical attributes, the agronomical characteristics of crop, grains yield, leaf macronutrients content and forages yield. The intercrop system did not affect grain yield of corn and sorghum, because it did not cause negative effects in plant nutrition and growth. Nitrogen fertilization affected grains yield of corn and sorghum independently of the cultivation system. The residual effect of nitrogen applied on corn and sorghum caused an increased forage yield of B. brizantha and P. maximum. No difference was observed among the soil chemical attributes due to different cultivation systems, because of the high fertility of the soil. The highest net...(Complete abstract click electronic access below)
Doutor
Sousa, Roberto Pequeno de. "Tamanho de parcela para experimentação com girassol." Universidade Federal Rural do Semi-Árido, 2013. http://bdtd.ufersa.edu.br:80/tede/handle/tede/79.
Повний текст джерелаThis study aims to determine the appropriate size of field plots for field experimentation with sunflower. An experiment was conducted in randomized complete blocks design with 14 cultivars of sunflower and 10 replications. The field plots consisted of four rows of six-meter long rows, spaced 0.7 m and 0.3 m between plants, with a total area of 16.8 m2. The useful area of the plot (7.56 m2), consisting of the two central rows, was divided into 12 basic units, each one consisting of three plants in the row (0.63 m2). The production of sunflower grains obtained in basic units was grouped in order to form portions of seven kinds of five different predefined sizes. The appropriate size of the experimental plot was estimated by the following methods: a) Intraclass correlation coefficient b) Maximum modified curvature c) Segmented linear model with plateau and d) Hatheway (1961). Were also estimated the soil heterogeneity coefficient (b) and the detectable difference among treatments (d). There was a reduction in the coefficient of variation with increasing the size of the plot. The soil of the experiment showed high heterogeneity ( = 1.0585). They were estimated by the methods of the intraclass correlation coefficient, maximum modified curvature and segmented linear model with plateau, respectively, the optimal plot sizes corresponding to 2.52, 3.74 and 2.48 m2. The maximum modified curvature method presented estimate of the optimum plot size more appropriate, together with the detectable difference between means of cultivars to accurately assess the yield of sunflower grain. The plot of 3.74 m2 of useful area was considered appropriate to assess the yield of sunflower grains and it was smaller than the size generally used in researches with sunflower. Though the Hatheway method (1961), they were estimated several very aplicable plot sizes. Considering all the cultivars for the same difference to be detected among means of cultivars, the use of a portion of smaller size with the largest number of replicates required less experimental area than the larger plots with a fewer number of replications
O objetivo desse trabalho foi determinar o tamanho adequado de parcela para experimentação de campo com girassol. Foi realizado um experimento no delineamento em blocos completos casualizados com 14 cultivares de girassol e 10 repetições. As parcelas foram constituídas de quatro fileiras de seis metros de comprimento, espaçadas de 0,7 m e entre plantas de 0,3 m, com área total de 16,8 m2. A área útil da parcela (7,56 m2), composta das duas fileiras centrais, foi dividida em 12 unidades básicas, cada uma constituída de três plantas na fileira (0,63 m2). A produção de grãos do girassol obtida nas unidades básicas foi agrupada de modo a formar sete tipos de parcelas de cinco tamanhos diferentes pré-estabelecidos. O tamanho adequado da parcela experimental foi estimado por meio dos seguintes métodos: a) Coeficiente de correlação intraclasse; b) Máxima curvatura modificado; c) Modelo linear segmentado com platô e d) Hatheway (1961). Estimaram-se também o coeficiente de heterogeneidade do solo (b) e a diferença detectável entre tratamentos (d). Ocorreu redução do coeficiente de variação com o aumento do tamanho da parcela. O solo do experimento apresentou alta heterogeneidade ( = 1,0585). Foram estimados pelos métodos do coeficiente de correlação intraclasse, máxima curvatura modificado e modelo linear segmentado com platô, respectivamente, os tamanhos ótimos de parcela correspondentes a 2,52, 3,74 e 2,48 m2. O método da máxima curvatura modificado apresentou estimativa do tamanho ótimo da parcela mais adequado, aliado à diferença detectável entre médias de cultivares para avaliar com precisão o rendimento de grãos do girassol. Parcela 3,74 m2 de área útil foi considerada adequada para avaliação do rendimento de grãos do girassol e foi menor que o tamanho geralmente usado nas pesquisas com o girassol. Pelo método de Hatheway (1961) estimaram-se diversos tamanhos de parcelas, muitos aplicáveis. Considerando todas as cultivares, para uma mesma diferença a ser detectada entre médias de cultivares, a utilização de parcela de menor tamanho com maior número de repetições requereu menos área experimental do que parcelas maiores com menor número de repetições
Igor, Leščešen. "Протицајни режим великих вода Дунава, Саве, Тисе и Драве у Панонском басену". Phd thesis, Univerzitet u Novom Sadu, Prirodno-matematički fakultet u Novom Sadu, 2019. https://www.cris.uns.ac.rs/record.jsf?recordId=110670&source=NDLTD&language=en.
Повний текст джерелаVelike vode su složena pojava kako u pogledu faktora koji je izazivaju, tako iu pogledu njenog uticaja na ekosistem i društvo. U disertaciji je prikazana prednost analize velikih voda, sa dve promenljive (zapremine i trajanje), u odnosu na uobičajenu analizu sa jednom vrednošću (najčešće maksimalni godišnji proticaj). Rezultati dobijeni statističkom analizom velikih voda, koje su izdvojene metodom praga su pokazali da imaju veću primenljivost u vodoprivredi nego metode koje koriste standardne vrednosti, jer daju konkretne vrednosti mogućih količina vode (zapremine velikih voda) Metoda praga je primenjena na 22 stanica na četiri najveće reke Panonskog basena (Dunav, Sava, Tisa i Drava) za period 1964-2013. godina što do sad predstavlja najveći uzorak na ovako velikom geografskom području. Kao prag za izdvajanje velikih voda uzeta je vrednost Q10, jer je cilj bio analiza prostornih i vremenskih karakteristika ekstremnih velikih voda u najvećih reka Panonskog basena. Izbor praga uticao je i na izbor metode godišnjih maksimuma za statističku analizu karakteristika velikih voda. Za određivanje parametra teorijskih raspodela korišćeni su L-momenti koji daju pouzdanije ocene parametara od običnih momenata. U dosadašnjim radovima, koji su analizirali karakteristike velikih voda metodom godišnjih maksimuma, funkcija raspodele se unapred odabirala, a ne na osnovu testova saglasnosti i provere grafika verovatnoće, kao što je urađeno u ovoj disertaciji. Za proveru saglasnosti godišnjeg maksimuma zapremina i trajanja korišćeni su testovi Kolmogorov-Smirnov i Kramer –Mizes, na osnovu kojih su izabrane merodavne raspodele za proračun velikih voda različitih povratnih perioda na stanicama, i obrnuto. Pomoću L-moment dijagrama (LCs/L-Ck) utvrđena je homogenost regiona, u ovom slučaju Panonskog basena, kao iizabrana regionalna raspodela (LN) za zapremine i trajanje velike vode. Klaster analiza korišćena je kao druga metoda za izdvajanje homogenih regiona. Na osnovu ove analize u Panonskom basenu su izdvojena tri regiona koja imaju iste karakteistike.
High waters are a complex phenomenon both in terms of the factors that cause it, as well as in terms of its impact on the ecosystem and society. This dissertation presents the advantage of analyzing high waters with two variables (volumes and duration), compared to the usual analysis with one value (usually the maximum annual discharge). The results obtained by the statistical analysis of high waters, which are defined by the threshold method, have shown that they have greater applicability in water management than methods that use standard values because they give concrete values of possible water quantities (volume of highwaters). The threshold method was applied to 22 stations on the four largest rivers Pannonian Basin (Danube, Sava, Tisa and Drava) for the period 1964-2013. This represents the largest sample in such a large geographical area. The value of Q10 was taken as the threshold for defining the high waters, as the aim was to analyze the spatial and temporal characteristics of extreme high waters in the largest rivers of the Pannonian Basin. The threshold selection also influenced the selection of the annual maximum method for statistical analysis of the characteristics of high waters. L-moments wereused to determine the parameter of the theoretical distributions, which give more reliable estimates of parameters than ordinary moments. In the previous researches, which analyzed the characteristics of high waters by the method of annual maximums, the distribution function was selected in advance, and not on the basis of tests of approval and check of probability graphs, as is done in this dissertation. In order to check the goodness-offit tests of annual maximum volumes and duration, the tests Kolmogorov-Smirnov and Kramer-Mizes were used, and based on their results representative distribution was chosen for calculation of different return periods of high waters on the stations, and vice versa. The L-moment diagram (L-Cs/L-Ck) determined the homogeneity of the region, in this case the Pannonian basin. L-moments were used for selection of regional distribution (LN) forvolumes and duration of high waters. Cluster analysis was used as the second method for separating homogeneous regions. Based on this analysis in the Pannonian Basin, three regions have been identified that have the same hydrological characteristics.
Cato, Hampus. "Correlation Between 3000-meter Running Performance, Yo-Yo IR1 & Submaximal Treadmill Jogging Test." Thesis, Högskolan i Halmstad, Bio- och miljösystemforskning (BLESS), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-31875.
Повний текст джерелаBergroth, Simon. "Implementering av MPPT-enhet med återkoppling : avsedd för solceller." Thesis, Högskolan i Gävle, Elektronik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-30492.
Повний текст джерелаSöder, Tove, and Erika Eliasson. "Vad visar den plan som säger mer än tusen ord? : Illustrationsplanens betydelse utifrån tydlighetskravet i Plan- och Bygglagen." Thesis, Blekinge Tekniska Högskola, Institutionen för fysisk planering, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-21630.
Повний текст джерелаOskarsson, Joel. "Probabilistic Regression using Conditional Generative Adversarial Networks." Thesis, Linköpings universitet, Statistik och maskininlärning, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-166637.
Повний текст джерела"The Shift of Precipitation Maxima on the Annual Maximum Series using Regional Climate Model Precipitation Data." Master's thesis, 2013. http://hdl.handle.net/2286/R.I.20926.
Повний текст джерелаDissertation/Thesis
M.S. Civil and Environmental Engineering 2013
Réis, Délia Canha Gouveia. "Statistical modelling of extreme rainfall in Madeira Island." Doctoral thesis, 2014. http://hdl.handle.net/10400.13/869.
Повний текст джерела林立恆. "Regional frequency analysis of annual maximum 24-hour rainfall." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/9wcbb3.
Повний текст джерела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.
Su-HanYang and 楊舒涵. "Non-stationary Frequency Analysis for Annual Maximum Daily Precipitation." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/aa65tj.
Повний текст джерелаLi, Hsuan-Chang, and 李軒誠. "The Simulation of Annual Maximum Wind and Probability Distribution of Taiwan." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/68472233619643225952.
Повний текст джерела淡江大學
土木工程學系碩士班
102
Taiwan is an island located in the western Pacific Ocean and suffered from strong winds, such as tropical cyclones or typhoons in the summer season and monsoons in the winter season. To give a wind resistant design of a structure, specialists and structural engineers need to understand the local design wind speed in detail. However, due to the lack of observed wind speed data, numerical models are developed to simulate design wind speed. In this study, analysis on annual maximum wind speed and the peak wind speed during a typhoon event is executed. 29 meteorological stations in Taiwan are collected to understand the basic statistical parameters of 10-minute mean wind speeds. Further, the trend of annual maximum wind speed and the highly correlated third and fourth moments are found. To tell the extreme distribution of 29 stations, the GEVD extreme value distribution model is applied. Then a non-Gaussian simulation technique called Hermite-based transform is adopted for simulation of annual maximum wind speed for each station by inputting their statistical parameters. Results show that even the simulation is based on short term period record, the non-Gaussian simulation method to simulation the annual maximum wind speed provides fairly good agreement with the full-year observation. Finally in this study, the typhoon event is especially picked up among 4 stations, Yilan , Aliahsn , Hsinchu , Kaohsiung, to show the inconsistence with the distribution with annual maximum wind speeds. The GEVD model is also applied for discussion.
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.
Повний текст джерелаLIU, 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.
Повний текст джерелаChang, 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.
Повний текст джерела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.
Rodgers, Charles Andrew. "Joint characteristics of annual maximum instantaneous flood discharges and associated flood volumes in unregulated midwestern catchments." 1997. http://catalog.hathitrust.org/api/volumes/oclc/39656274.html.
Повний текст джерелаTypescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 411-424).
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.
Повний текст джерела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.
Повний текст джерелаLIN, GIN-JIE, and 林慶杰. "The guidelines for hydrologic frequency analysis in Taiwan (annual 1-day, 2-day, and 3-day maximum storm)." Thesis, 1990. http://ndltd.ncl.edu.tw/handle/43234392035466832285.
Повний текст джерелаChen, Po-Chun, and 陳柏均. "A Comparison of Methods for Non-Stationary Hydrologic Frequency Analysis: Case Study with Annual Maximum Daily recipitation in Taiwan." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/90193694420658773932.
Повний текст джерела國立臺灣大學
土木工程學研究所
101
Due to the climate changing, the hydrological stationarity, a fundamental component of engineering design and practice involves predicting or characterizing future conditions based on previous observation or record, could be inappropriate. We have been experiencing more intense and more frequent extreme hydrological events in recent. Under current climate changing condition, the stationary assumption and corresponding assessment approach need to be re-evaluated carefully. This study investigates the nonstationarity of annual maximum daily precipitation in Taiwan. Based on the concept of IDT (identification of distribution and trend), three different schemes are applied to analyze the precipitation data from nine major cities in Taiwan. These studies adopts, Weighted Least Square Method, Discrete Wavelet Transform Method, and Empirical Mode Decomposition, to explore the time variation of first and second statistical moments of annual maximum precipitation. From the analysis, we find that all the three schemes demonstrate clear nonstationarity in Keelung, Taitung and Hwalian. According the result, this study further discusses the change of exceedance probability and return period in the near future. As results, we can determine the hydrological risks, review the current management policies and engineering standards, and have a better long term planning in engineering.
Pellerin, Brian. "Modelling Biennial Bearing in Apple Trees." 2011. http://hdl.handle.net/10222/14275.
Повний текст джерелаCHEN, 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.
Повний текст джерела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