Academic literature on the topic 'Annual rainfall'

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Journal articles on the topic "Annual rainfall"

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RAGHAVENDRA, V. K. "Trends and periodicities of rainfall in sub-divisions of Maharashtra State." MAUSAM 25, no. 2 (2022): 197–210. http://dx.doi.org/10.54302/mausam.v25i2.5194.

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The Maharashtra State of India is divided into four meteorological sub-divisions, viz., Konkan, Madhya Maharashtra, Marathwada and Vidarbha. Of these, Madhya Maharashtra and Marathwada are prone to droughts. The principal rainy season is the monsoon season of June to September when over 80 per cent of the annual rainfall is received. The coefficient of variation is about 20 per cent for the annual and monsoon rainfall except in Marathwada where it is 25 per cent. The annual and monsoon rainfalls follow the normal distribution for their yearly frequencies. In this region the annual and the mons
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Stefanidis, Stefanos, and Dimitrios Stathis. "Spatial and Temporal Rainfall Variability over the Mountainous Central Pindus (Greece)." Climate 6, no. 3 (2018): 75. http://dx.doi.org/10.3390/cli6030075.

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In this study, the authors evaluated the spatial and temporal variability of rainfall over the central Pindus mountain range. To accomplish this, long-term (1961–2016) monthly rainfall data from nine rain gauges were collected and analyzed. Seasonal and annual rainfall data were subjected to Mann–Kendall tests to assess the possible upward or downward statistically significant trends and to change-point analyses to detect whether a change in the rainfall time series mean had taken place. Additionally, Sen’s slope method was used to estimate the trend magnitude, whereas multiple regression mode
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Liao, Yifan, Bingzhang Lin, Xiaoyang Chen, and Hui Ding. "A New Look at Storm Separation Technique in Estimation of Probable Maximum Precipitation in Mountainous Areas." Water 12, no. 4 (2020): 1177. http://dx.doi.org/10.3390/w12041177.

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Storm separation is a key step when carrying out storm transposition analysis for Probable Maximum Precipitation (PMP) estimation in mountainous areas. The World Meteorological Organization (WMO) has recommended the step-duration-orographic-intensification-factor (SDOIF) method since 2009 as an effective storm separation technique to identify the amounts of precipitation caused by topography from those caused by atmospheric dynamics. The orographic intensification factors (OIFs) are usually developed based on annual maximum rainfall series under such assumption that the mechanism of annual max
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Ledingham, Jamie, David Archer, Elizabeth Lewis, Hayley Fowler, and Chris Kilsby. "Contrasting seasonality of storm rainfall and flood runoff in the UK and some implications for rainfall-runoff methods of flood estimation." Hydrology Research 50, no. 5 (2019): 1309–23. http://dx.doi.org/10.2166/nh.2019.040.

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Abstract Using data from 520 gauging stations in Britain and gridded rainfall datasets, the seasonality of storm rainfall and flood runoff is compared and mapped. Annual maximum (AMAX) daily rainfall occurs predominantly in summer, but AMAX floods occur most frequently in winter. Seasonal occurrences of annual daily rainfall and flood maxima differ by more than 50% in dry lowland catchments. The differences diminish with increasing catchment wetness, increase with rainfalls shorter than daily duration and are shown to depend primarily on catchment wetness, as illustrated by variations in mean
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Ologeh, I., and F. Adesina. "Evaluation of climate change as a major determinant of crop yield improvement in Nigeria." IOP Conference Series: Earth and Environmental Science 1077, no. 1 (2022): 012002. http://dx.doi.org/10.1088/1755-1315/1077/1/012002.

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Abstract Climate change has adversely affected agricultural productivity leading to decline in food production. The influence of climate change on crops and livestock persists despite irrigation, improved plant and animal hybrids. The continued dependence of agricultural production on climatic factors and the relative dependence of human existence on agricultural products create the need for a comprehensive consideration of the relationship between climate and crop production. This study measured the relationship between annual maize/yam yield as dependent variable and seasonal rainfall as ind
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Junges, Amanda H., Carolina Bremm, and Denise C. Fontana. "Rainfall climatology, variability, and trends in Veranópolis, Rio Grande do Sul, Brazil." Revista Brasileira de Engenharia Agrícola e Ambiental 23, no. 3 (2019): 160–66. http://dx.doi.org/10.1590/1807-1929/agriambi.v23n3p160-166.

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ABSTRACT The objective of this study was to characterize the rainfall climatology in Veranópolis, Rio Grande do Sul, Brazil, through analyses of means, variabilities related to El Niño Southern Oscillation (ENSO), and temporal trends, using a 60-year data series (1956-2015). Descriptive statistics of annual, monthly and seasonal rainfall were used to characterize the rainfall climatology. The differences between seasons, and influence of ENSO were evaluated using analysis of variance and the Duncan’s test. Rainfall trends were evaluated by the Mann Kendall test. The local average annual rainfa
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Dr., A. I. Khan, and T. Gaikwad Vipul. "Rainfall Trend in Drought Prone Region of Ahmednagar District of Maharashtra in India: A Geographical Study." International Journal of Advance and Applied Research 4, no. 1 (2023): 46–50. https://doi.org/10.5281/zenodo.7546328.

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In this paper the present study reveals the tehsil wise annual rainfall trend in Ahmednagar District of Maharashtra State during 1984 to 2018. The rainfall is one of the significant parameters among the climate for the development of society. They determine the scarcity of particular region. The rate of rainfall is varied in different region. The average annual rainfall in the Ahmednagar district varies from about 625.09 mm to 405.3; some area has been traditionally affected by drought. The large area of the district comes under the agriculture due to large population depend on agricultural fo
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Whitehead, Peter J., Jeremy Russell-Smith, and Cameron Yates. "Fire patterns in north Australian savannas: extending the reach of incentives for savanna fire emissions abatement." Rangeland Journal 36, no. 4 (2014): 371. http://dx.doi.org/10.1071/rj13129.

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Anthropogenic fires in Australia’s fire-prone savannas produce up to 3% of the nation’s accountable greenhouse gas (GHG) emissions. Incentives to improve fire management have been created by a nationally accredited savanna burning emissions abatement methodology applying to 483 000 km2 of relatively high-rainfall (>1000 mm p.a.) regions. Drawing on 15 years of fire mapping, this paper assesses appropriate biophysical boundaries for a savanna burning methodology extended to cover lower-rainfall regions. We examine a large random sample of points with at least 300 mm of annual rainfall, to sh
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Manike, M. M. A. P., and M. Rajendran. "Analysis of Rainfall Distribution in Kurunegala District, Sri Lanka." Asian Journal of Research in Agriculture and Forestry 10, no. 1 (2024): 48–60. http://dx.doi.org/10.9734/ajraf/2024/v10i1268.

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Investigating the dynamics of rainfall has become very crucial in managing water resources efficiently for sustainable development. The present study aimed to analyze the rainfall distribution in Kurunegala district. Historical rainfall data collected from four gauging stations were subjected to both mathematical and statistical analysis. In addition, trends of rainfall, probability of exceedance and meteorological drought conditions were studied. Rainfall distribution in the district shows high variations. Bathalagoda records the highest mean annual rainfall of 1843 mm. The corresponding valu
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Yoo, Chul-Sang, and Cheol-Soon Park. "Comparison of Annual Maximum Rainfall Series and Annual Maximum Independent Rainfall Event Series." Journal of Korea Water Resources Association 45, no. 5 (2012): 431–44. http://dx.doi.org/10.3741/jkwra.2012.45.5.431.

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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. 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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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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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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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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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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Books on the topic "Annual rainfall"

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Rao, Donthamsetti V. Rainfall analysis for Northeast Florida: Summary of monthly and annual rainfall data through 1995. St. Johns River Management District, 1997.

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Hedgecott, S. An estimate of annual rainfall over the North Sea. Water Research Centre, 1989.

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Fitzgerald, D. Monthly and annual averages of rainfall for Ireland 1961-1990. Meteorological Service, 1996.

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Office, Great Britain Meteorological. Monthly and annual totals of rainfall 1986 for the United Kingdom. Meteorological Office, 1988.

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Service, Canada Meteorological, ed. [R]ain and snow-fall of Canada to the end of 1902: With charts of annual precipitation. S.E. Dawson, 1997.

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Weaver, J. Curtis. Frequency of annual maximum precipitation in the City of Charlotte and Mecklenburg County, North Carolina, through 2004. U.S. Geological Survey, 2006.

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Asquith, William H. Atlas of depth-duration frequency of precipitation annual maxima for Texas. U.S. Dept. of the Interior, U.S. Geological Survey, Water Resources Division, 2004.

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Asquith, William H. Atlas of depth-duration frequency of precipitation annual maxima for Texas. U.S. Dept. of the Interior, U.S. Geological Survey, Water Resources Division, 2004.

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Asquith, William H. Atlas of depth-duration frequency of precipitation annual maxima for Texas. U.S. Dept. of the Interior, U.S. Geological Survey, Water Resources Division, 2004.

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Asquith, William H. Atlas of depth-duration frequency of precipitation annual maxima for Texas. U.S. Dept. of the Interior, U.S. Geological Survey, Water Resources Division, 2004.

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Book chapters on the topic "Annual rainfall"

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Tesfaye, Argaw, and Arragaw Alemayehu. "Climate Change and Variability on Food Security of Rural Household: Central Highlands, Ethiopia." In African Handbook of Climate Change Adaptation. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-45106-6_188.

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AbstractThis chapter analyzes the impact of climate change and variability on food security of rural households in the central highlands of Ethiopia taking Basona Werana district as a case study site. Data were obtained from 123 households selected using simple random sampling from three agro ecological zones. Key informant interviews and focus group discussion (FDG) were used to supplement the data obtained from household survey. The monthly rainfall and temperature data are for 56 points of 10 × 10 km grids reconstructed from weather stations and meteorological satellite observations, which
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Mahajan, Asmita, Akanksha Rastogi, and Nonita Sharma. "Annual Rainfall Prediction Using Time Series Forecasting." In Advances in Intelligent Systems and Computing. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-4032-5_8.

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Singh, Anjaney, Amit Dua, and A. P. Singh. "Annual Rainfall Prediction Using Artificial Neural Networks." In Lecture Notes in Civil Engineering. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-6695-4_23.

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Sedrique, Zoyem Tedonfack, and Julius Tata Nfor. "Rainfall Variability and Quantity of Water Supply in Bamenda I, Northwest Region of Cameroon." In African Handbook of Climate Change Adaptation. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-45106-6_139.

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AbstractBamenda I municipality found in the humid tropic is endowed with a dense hydrological network which makes it a water catchment for the entire region. Paradoxically, the region still suffers problems of water shortage. This is due to the spatial and temporal variability in rainfall that greatly affects water supply through its impacts on surface and groundwater. For this reason, we came up with the research topic “Rainfall variability and quantity of water supply in Bamenda 1, Northwest Region of Cameroon.” The objective of this study is to examine the manifestations of rainfall variabi
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Afzal, Muhammad Hassan Bin, and Moniruzzaman Bhuiyan. "Sustainable Trend Analysis of Annual Divisional Rainfall in Bangladesh." In ISFRAM 2014. Springer Singapore, 2015. http://dx.doi.org/10.1007/978-981-287-365-1_21.

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Salvi, Loukik S., and Ashish Jadhav. "Annual Rainfall Prediction of Maharashtra State Using Multiple Regression." In Intelligent Computing and Networking. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-0071-8_14.

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Belarbi, Halima, Bénina Touaibia, Nadir Boumechra, Chérifa Abdelbaki, and Sakina Amiar. "Analysis of the Hydrological Behavior of Watersheds in the Context of Climate Change (Northwestern Algeria)." In Natural Disaster Science and Mitigation Engineering: DPRI reports. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-2904-4_5.

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AbstractThe aim of this work is to study the temporal evolution of the rainfall-runoff relations of four basins in northwestern Algeria: the Tafna Maritime, Isser Sikkak, downstream Mouilah and Upper Tafna basins. The adopted approach consists of analyzing hydroclimatic variables using statistical methods and testing the nonstationarity of the rainfall-runoff relation by the cross-simulation method using the GR2M model. The results of the different statistical methods applied to the series of rainfall and hydrometric variables show a decrease due to a break in stationarity detected since the m
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Malyse, Majoumo Christelle. "Rainfall Variability and Adaptation of Tomatoes Farmers in Santa: Northwest Region of Cameroon." In African Handbook of Climate Change Adaptation. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-45106-6_138.

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AbstractThe Santa agrarian basin being one of the main market gardening basins in Cameroon and one of the producers of tomatoes in the country is vulnerable to the impact of rainfall variability. The spatiotemporal variability of rainfall through the annual, monthly, and daily fluctuations has greatly affected the market gardening sector in general and tomatoes production in particular. Thus, given rise to the research topic “Rainfall variability and adaptation of tomatoes farmers in Santa North west region of Cameroon,” its principal objective is to contribute to better understanding of the r
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Rahman, Nor Faiza Abd, Ee Li Siew, Vin Cent Tai, et al. "Analysis of Annual Cumulative Rainfall Events in Cameron Highlands, Malaysia." In Lecture Notes in Mechanical Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-0169-8_61.

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Swain, Sabyasachi, Surendra Kumar Mishra, and Ashish Pandey. "Assessing Contributions of Intensity-based Rainfall Classes to Annual Rainfall and Wet Days over Tehri Catchment, India." In Lecture Notes in Civil Engineering. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-1303-6_9.

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Conference papers on the topic "Annual rainfall"

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Zilinskas, Mindaugas, Stasys Tamosiunas, and Milda Tamosiuniene. "Calculation of Radio Signal Attenuation Using Annual Precipitation and Heavy Rainfall Data." In 2006_Wroclaw. IEEE, 2006. https://doi.org/10.23919/emc.2006.10852045.

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Shetty, Shashank, Dhanyashree, Diya Dharmendra, Sanjay Bankapur, and Prabhu Prasad B. M. "HydroStack: A Hybrid Meta-Ensemble Machine Learning Framework for Accurate Annual Rainfall Prediction." In 2024 8th International Conference on I-SMAC (IoT in Social, Mobile, Analytics and Cloud) (I-SMAC). IEEE, 2024. http://dx.doi.org/10.1109/i-smac61858.2024.10714739.

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Bucşe, Ionela Gabriela, Mariana Ciobanu, and Marius Criveanu. "Climatic Parameter Influence on Environmental Pollution in Drobeta Turnu Severin." In Advances in Engineering and Management. Trans Tech Publications Ltd, 2025. https://doi.org/10.4028/p-bpd1h5.

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The examination of the primary climatic indicators, air temperature and rainfall, at the Drobeta Turnu Severin meteorological station for the period 2011-2022, allowed for the identification of increasing or declining trends. The entire study was developed using three different time frames of analysis: monthly, seasonal, and annual. The results indicate the specificities for each climate parameter on each of the three-time scales. The yearly trends for mean temperature are primarily increasing, while the annual trends for rainfall are generally decreasing. Because of the fluctuation of meteoro
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Raksha Kodnad, R., M. Chandrika, and B. Pavithra. "Annual Rainfall Classification Using Machine Learning Techniques." In 2024 1st International Conference on Communications and Computer Science (InCCCS). IEEE, 2024. http://dx.doi.org/10.1109/incccs60947.2024.10593366.

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Carlos Rogério Mello, Marcelo Ribeiro Viola, Samuel Beskow, and Lloyd Darrell Norton. "Multivariate Models for Annual Rainfall Erosivity in Brazil." In International Symposium on Erosion and Landscape Evolution (ISELE), 18-21 September 2011, Anchorage, Alaska. American Society of Agricultural and Biological Engineers, 2011. http://dx.doi.org/10.13031/2013.39193.

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Zobrist, Christophe, Nathalie Cencic, and Jean-Pierre Tabuchi. "An Annual Rainfall Model: Why, When and How?" In Ninth International Conference on Urban Drainage (9ICUD). American Society of Civil Engineers, 2002. http://dx.doi.org/10.1061/40644(2002)243.

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Lestari, Sopia, Andrew King, and Claire Vincent. "Annual Changes in Rainfall Extremes over the Megacity Jakarta." In 2020 IEEE Asia-Pacific Conference on Geoscience, Electronics and Remote Sensing Technology (AGERS). IEEE, 2020. http://dx.doi.org/10.1109/agers51788.2020.9452762.

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Fisler, Kathi. "The recurring rainfall problem." In the tenth annual conference. ACM Press, 2014. http://dx.doi.org/10.1145/2632320.2632346.

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Glazner, Michael K., Saša Tomić, and Benjamin White. "Redefining Rainfall Classification." In 29th Annual Water Resources Planning and Management Conference. American Society of Civil Engineers, 1999. http://dx.doi.org/10.1061/40430(1999)5.

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Amarasinghe, H. G. K. H., and B. M. L. A. Basnayake. "Spatial Patterns and Temporal Trends of Rainfall Seasonality in Sri Lanka." In The SLIIT International Conference on Engineering and Technology 2022. Faculty of Engineering, SLIIT, 2022. http://dx.doi.org/10.54389/qrsp2741.

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Understanding and knowledge of rainfall variability is necessitated for agricultural planning, flood mitigation activities, and water resources planning and management. Like other rainfall characteristics seasonality of rainfall is also spatio-temporally specific which has not been evaluated to Sri Lanka. In this study, seasonality in rainfall over Sri Lanka was analyzed using the seasonality index (SI) proposed by Walsh and Lawler. Rainfall data at 39 raingauge stations for the period 1988-2017 were collected to obtain the annual monthly rainfall cycles. The SI, a measure of annual rainfall d
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Reports on the topic "Annual rainfall"

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Wagner, Anna, Christopher Hiemstra, Glen Liston, Katrina Bennett, Dan Cooley, and Arthur Gelvin. Changes in climate and its effect on timing of snowmelt and intensity-duration-frequency curves. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/41402.

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Snow is a critical water resource for much of the U.S. and failure to account for changes in climate could deleteriously impact military assets. In this study, we produced historical and future snow trends through modeling at three military sites (in Washington, Colorado, and North Dakota) and the Western U.S. For selected rivers, we performed seasonal trend analysis of discharge extremes. We calculated flood frequency curves and estimated the probability of occurrence of future annual maximum daily rainfall depths. Additionally, we generated intensity-duration-frequency curves (IDF) to find r
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Rodriguez, Dirk, and Cameron Williams. Channel Islands Nation Park: Terrestrial vegetation monitoring annual report - 2016. National Park Service, 2022. http://dx.doi.org/10.36967/2293561.

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This report presents the data collected in 2016 as part of the long-term terrestrial vegetation monitoring program at Channel Islands National Park. The purposes of the monitoring program are to document the long-term trends in the major vegetation communities within the park. The data collected are from 30 m point-line intercept transects. In the past, each transect was sampled annually. However, beginning in 2012 the program began adding randomly located transects to improve the representativeness of the sampling, and transitioned to a rotating panel design. Now only a core subset of the tra
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Raikow, David, Jacob Gross, Amanda McCutcheon, and Anne Farahi. Trends in water quality and assessment of vegetation community structure in association with declining mangroves: A condition assessment of American Memorial Park. National Park Service, 2023. http://dx.doi.org/10.36967/2301598.

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American Memorial Park (AMME) in Saipan contains a rare mangrove wetland that is known to support several endangered species. Through monitoring water quality and vegetation characteristics of the wetland for &gt;10 years we documented a declining mangrove population, an increase in invasive plant species, and declining surface water salinity. Comprehensive surveys conducted in 2014 and 2019 quantified declines in the plant community observed by park staff. Surface water salinity declined from 2009 to 2018 and no other trend in surface water quality was observed. Over the time period of the pr
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Mendelsohn, Mark, John Tiszler, and Tarja Sagar. Vegetation monitoring in the Santa Monica Mountains and Simi Hills region: 2014?2020 annual report. National Park Service, 2023. http://dx.doi.org/10.36967/2300992.

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Our Inventory &amp; Monitoring team surveyed over 200 Terrestrial Native Vegetation Monitoring Plots in the Santa Monica Mountains and Simi Hills (SAMO) Region over the first seven years of this program?s history, 2014?2020. During this period, the park experienced a large wildfire in 2013 followed by historic drought, and then in 2018 the largest wildfire in the region?s recorded history, succeeded by well-timed rainfall. The goal of this monitoring program is to detect and understand the nature of vegetation change, for example in drought or post-fire environments, providing a knowledge base
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Pérez, N., D. Criollo, and S. Ospina. Wood density and vessel traits of woody species in Colombian seasonal dry lands as an adaptation to, and resilience mechanism for, livestock systems. Corporación colombiana de investigación agropecuaria - AGROSAVIA, 2019. http://dx.doi.org/10.21930/agrosavia.poster.2019.5.

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In Colombia, as well as in South America, dry seasonal tropics have drought periods that can last for six months with less than 10% of mean annual rainfall (900-1150 mm). For livestock systems, this situation generates constraints in the quantity and quality of forage affecting productivity, protability and causing damage to natural resources (Figure 1). Within vegetative genetic resources, fodder trees are recognized for their adaptation to climate change and because they are a source of nutrients for herbivores, they are a topic that waits for improving knowledge about their contribution to
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Guzman-Finol, Karelys, Angela C. Lyons, Sandy Dall’erba, and Jorge Eiras-Barca. The sensitivity of rice yields to weather variation in Colombia. Banco de la República, 2025. https://doi.org/10.32468/be.1299.

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We estimate the effects of annual temperature and precipitation on rice yields in Colombia from 1987 to 2016. The analysis explores the degree of variation in response to climate changes across the country’s diverse topography. Since there are two growing seasons in Colombia, the effects of the weather conditions for these two seasons are independently investigated. Additionally, rice yields are projected for two periods (2046-2065 and 2081-2100) based on the RCP 4.5, 6.5, and 8.0 of future climate scenarios. We found a positive effect of rainfall and temperature on yields, although one variab
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Williams, Cameron, Dirk Rodriguez, Dirk Rodriguez, and Cameron Williams. Channel Islands National Park: Terrestrial vegetation monitoring annual report?2019. National Park Service, 2024. http://dx.doi.org/10.36967/2306141.

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Long-term ecological research is critical for evaluating past resource management actions and guiding future decisions. This report presents the data collected at Channel Islands National Park (CHIS) in 2019 as part of its terrestrial vegetation monitoring program. The program?s objective is to document long-term trends in the park?s vegetation communities consistent with the Mediterranean Network that also includes Santa Monica Mountains National Recreation Area and Cabrillo National Monument. Monitoring at CHIS began in 1984 to observe vegetation recovery after the removal of nonnative ranch
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Williams, Cameron. Channel Islands National Park: Terrestrial vegetation monitoring annual report - 2020. National Park Service, 2023. http://dx.doi.org/10.36967/2299696.

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This report presents the data collected in 2020 as part of the long-term terrestrial vegetation monitoring program at Channel Islands National Park. The purpose of this monitoring program is to document long-term trends in the park’s vegetation communities. Data are collected from 30-m-long transects using a point-line intercept method. In the past, each transect was sampled annually. However, beginning in 2012 the program began adding randomly located transects to improve the representativeness of the sampling, and transitioned to a rotating panel design. Now only a core subset of the transec
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Raymond, Kara, Laura Palacios, and Evan Gwilliam. Status of climate and water resources at Big Bend National Park: Water year 2019. Edited by Tani Hubbard. National Park Service, 2022. http://dx.doi.org/10.36967/2294267.

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Climate and hydrology are major drivers of ecosystem structure and function, particularly in arid and semi-arid ecosystems. Understanding changes in climate, groundwater, streamflow, and water quality is central to assessing the condition of park resources. This report combines data collected on climate, groundwater, and springs at Big Bend National Park (NP) to provide an integrated look at climate and water conditions during water year (WY) 2019 (October 2018–September 2019). However, this report does not address the Rio Grande or its tributaries. Annual precipitation was higher than normal
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Raymond, Kara, Laura Palacios, Cheryl McIntyre, and Evan Gwilliam. Status of climate and water resources at Saguaro National Park: Water year 2019. Edited by Alice Wondrak Biel. National Park Service, 2021. http://dx.doi.org/10.36967/nrr-2288717.

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Climate and hydrology are major drivers of ecosystems. They dramatically shape ecosystem structure and function, particularly in arid and semi-arid ecosystems. Understanding changes in climate, groundwater, and water quality and quantity is central to assessing the condition of park biota and key cultural resources. The Sonoran Desert Network collects data on climate, groundwater, and surface water at 11 National Park Service units in south-ern Arizona and New Mexico. This report provides an integrated look at climate, groundwater, and springs conditions at Saguaro National Park (NP) during wa
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