There is significant spatial variation in temperature due to variations in elevation across the island. WorldCIST'18 2018. Filled markers indicate significant trends at the, Trends in the number of wet days for the SWM season during the study period. Located at the southern tip of the Indian mainland, Sri Lanka geographically falls within the tropical latitude of 5°55′–9°51′N and longitude of 79°42′–81°53′E [2]. Tourist Arrivals in Sri Lanka averaged 53458.42 from 1977 until 2020, reaching an all time high of 253169 in December of 2018 and a record low of 0 in April of 2020. At least 50% of stations showed significant increases in averages for all seasons, with 75% of stations doing so during the months of MJJAS coinciding with the SWM season. Precipitation patterns worldwide are changing under the effects of global warming. 2.1 Subbasin rainfall (areal rainfall) Monthly rainfall data for the years 1950–2013 are used for the study (Ceylon Electricity Board, 2017). The seasonal Sen–Theil slope estimator is computed by calculating pairwise slopes within each season and obtaining slopes from all seasons to compute a median slope for the entire period of record. Park et al., “Historical trends in Florida temperature and precipitation,”, S. Chandrasekara, V. Prasanna, and H.-H. Kwon, “Monitoring water resources over the kotmale reservoir in Sri Lanka using ENSO phases,”. For every 1,000 babies born in Sri Lanka in 2018, 7 die before their 5th birthday. Over the course of the year, the temperature typically varies from 73°F to 90°F and is rarely below 70°F or above 93°F.. Based on the beach/pool score, the best time of year to visit Kelaniya for hot-weather activities is from mid … Threshold values of the variables for the statistical measures Supplementary Table 2. Climate Information for Nuwara Eliya, Sri Lanka. K. S. Anil, J. C. Dagar, A. Arunachalam, R. Gopichandran, and K. N. Shelat, M. V. K. Sivakumar and R. Stefanski, “Chapter 2: climate change in South Asia,” in. It is important to manage water resource and changes in precipitation should be identified as a solution for the climatic changes in Sri Lanka. In this investigation, we performed an iterative prewhitening method as executed in the zyp package in R [44]. According to Köppen and Geiger, this climate is classified as Af. Climate change is a critical factor that effect on the variability of environment in many countries globally. [15], the recent period (1961–2000) shows accelerated daytime warming trends. K. A. U. S. Imbulana, N. T. S. Wijesekera, and B. R. Neupane, L. W. Seneviratne, “Global drought and flood in 2009/10 effected by astronomical conditions,” in, S. Herath and U. Rathnayake, “Changing rainfall and its impact on landslides in Sri Lanka,”, H. K. W. I. Jayawardene, D. U. J. Sonnadara, and D. R. Jayewardene, “Trends of rainfall in Sri Lanka over the last century,”, K. L. A. The data consist of 55 years (1961–2015) of daily rainfall, maximum temperature (Tmax), and minimum temperature (Tmin) records from 20 stations scattered throughout Sri Lanka. The In this paper, the existence of statistically significant trends in rainfall from observational datasets, which were measured by 245 rain gauges over Sicily (Italy) during the 1921–2012 period, was investigated. Analyzing trend and forecasting of rainfall changes in India using non-parametrical and machine lear... Analyzing trend and forecasting of rainfall changes in india using non- parametrical and machine lea... New spatial statistics procedures suggested by a critical comparison between geoestatistical package... Conference: Spatial Analysis of Monthly and Seasonal Rainfall in Sri Lanka. The increase in Tmin indicates likely warming of nighttime temperatures in Sri Lanka. Research on daily temperature extremes in South Asian countries has revealed the warming of both extreme-cold and extreme-warm distributions [59]. Also, there is a considerable degree of interannual variability in the average temperature data. Sometimes, you’ll get to save as much as 40-50% on accommodations and the flight. The trend slopes during the 1961–1970 and 2001–2010 periods were found to be −2.9 and +0.6 mm/decade, respectively. Number of stations with statistically significant trends in measures listed in Table, Trends in total rainfall: (a) annual and (b) NEM seasons during the study period. Seasonal rainfall maxima were investigated using the GEV distribution, and the significance of trends in location parameters was tested using the likelihood ratio test. Katugastota was the only station that detected significant rainfall increase for the NEM season. Find Out . KMI2018-07010). Evidence from long-term meteorological data,”, L. Xiaxiang, Z. Xuezhen, and Z. Lijuan, “Observed effects of vegetation growth on temperature in the early summer over the northeast China plain,”, L. Zhou, R. E. Dickinson, P. Dirmeyer, A. Dai, and S. K. Min, “Spatiotemporal patterns of changes in maximum and minimum temperatures in multi-model simulations,”, T. A. M. G. Klein, T. C. Peterson, D. A. Quadir et al., “Changes in daily temperature and precipitation extremes in central and south Asia,”, M. M. Sheikh, N. Manzoor, J. Ashraf et al., “Trends in extreme daily rainfall and temperature indices over South Asia,”, F. Ikram, M. Afzaal, S. A. At least 50 % of the monsoon months and enjoy in situations with missing/censored as... Number of warmer winter months Ratnapura, Ratmalana monthly rainfall data sri lanka 2018 and 7-day durations ( Table )... 26 ] Malaria Correlations spurious trends in raw ( or unadjusted ) data were used as variables to the. 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