Annual GDP Growth (%) Sri Lanka. ; Rajagoplana, B. Daily rainfall totals are analyzed for the main agro-climatic zones of Sri Lanka for the period 1976–2006. Modulation of Sri Lanka’s climate during El Niño events is related to changes in the Walker circulation, resulting in heightened convection over Sri Lanka in OND and enhanced subsidence during the rest of the year [, We have not investigated links with SSTs in the Bay of Bengal but judging by results in [, Other than OND, significant correlations are almost all negative (JAS, JFM, M+A) or not found at all (AMJ). Kandy, Sri Lanka. The northwest and the southeast are the driest, while the southwestern region is the wettest. Rasmussen, E.M.; Carpenter, T.H. Web Release on NCPI and Inflation - October 2020 . Pearson correlation coefficients were used to identify significant relationships between seasonal rainfall data and climatic indices (SSTs, SOI, IOD). you will at last be able to give in such a way that the other is able to receive Missing data means that the number of pairwise correlations may differ slightly between seasons and stations; in most cases, Daily rainfall data have also been used to provide measures of direct value to the farming community. Gaps (48 months) were infilled using data from the nearby stations: Thihagoda (1979–1981; 11/1973, 1–2/1988, 10–12/1988, 1–3/1989. Precipitation in Sri Lanka is directly influenced by SSTs in the IO, as well as by conditions in the Pacific Ocean. DOI: 10.3390/CLI2040242 Corpus ID: 18032004. CCPI for the month of November 2020 is 137.1. Landslide warnings have been issued for Colombo, Gampaha, Kalutara, Galle, Ratnapura and Kegalle. In Sri Lanka, formerly Ceylon, the climate is tropical, and the weather is hot and humid throughout the year.The country is located just north of the equator. Changing patterns of heavy rainfall in upland areas: a case study from northern England. The pear-shaped island is about 65,000km² in size and is mountainous in the south central region, with the highest peaks climbing to 2500m above sea level. © 2014 by the authors; licensee MDPI, Basel, Switzerland. The emphasis is on daily rainfall rather than on longer-period totals, in particular the number of daily falls exceeding given threshold totals. Why you should get vaccinated. Observed trends in the daily intensity of United Kingdom precipitation. Author to whom correspondence should be addressed. Mean annual rainfall varies from less than 1000 mm on the southeast coast to over 4500 mm on the western slopes of the highlands (Figure 1). Sri Lanka’s Disaster Management Center reported more than half a million people have been affected by the flooding. Annual rainfall and snowfall in Sri Lanka 2015 - 2020. ; Jones, P.D. November is the period with the most evenly balanced distribution of rainfall over Sri Lanka. The analysis emphasises the importance of the selected catchment due to the ongoing Uma Oya development program. NEXT. Precipitation in Sri Lanka averaged 142.05 mm from 1901 until 2015, reaching an all time high of 687.50 mm in December of 1957 and a record low of 1.20 mm in February of 1980. On the weakening relationship between the Indian Monsoon and ENSO. Colombo Weather History for the Previous 24 Hours. Climate Information for Trincomalee, Sri Lanka. We use cookies on our website to ensure you get the best experience. The Sri Lanka lowland rain forests represents Sri Lanka's Tropical rainforests below 1,000 m (3,281 ft) in elevation in the southwestern part of the island. Suppiah, R. Spatial and temporal variations in the relationships between the Southern Oscillation phenomenon and the rainfall of Sri Lanka. Number: 13-2613755, A division of the Foundation for the Support Showers or thundershowers will occur at several places in Sabaragamuwa, Central and Western provinces and in Galle and Matara districts in the evening or night. Based on weather reports collected during 2005–2015. In this study, we used a comprehensive set of statistical metrics to investigate the historical trends in averages and extremes of rainfall and temperature in Sri Lanka. Harshani R. K. Nagahamullais with the Dept of Computing & Information Systems, Faculty of Applied Sciences, Wayamba University of Sri Lanka, Kuliyapitiya, Sri Lanka (e-mail: harshaninag@yahoo.com) Department of Geography, Durham University, Science Laboratories, South Road, Durham DH1 3LE, UK, Department of Agricultural Engineering, University of Ruhuna, Matara 81000, Sri Lanka. Sri Lanka Climate Data First of all, take a look at the page I did on Sri Lanka Malaria Correlations.. A good deal of research has been conducted at the scale of the Indian subcontinent, some of it reviewed here, and it is vital to place Sri Lanka in its regional context. Four seasons were identified in past studies [1]. Climate Information for Trincomalee, Sri Lanka. Weerasinghe, K.D.N. Subscribe to receive issue release notifications and newsletters from MDPI journals, You can make submissions to other journals. Rainfall data for five rain gauges in one of the most important catchments in Sri Lanka were tested for the rainfall trends. of International Medical Training (FSIMT), Website by: SNAP 360° | Editorial Policy | Terms of Use | Privacy Policy. The focus is particularly on rainfall in March and April, given the sensitivity of agricultural decisions to early SWM rainfall at the start of Yala, the minor cropping season in most parts of the country due to relative dryness; The predictability of rainfall is investigated in relation to the main drivers known to affect climate in the region: ENSO and IOD. Morris, R.A.; Zandrasta, H.G. Colombo Temperature Yesterday. Sri Lanka receives ample annual rainfall between 965.2mm (38") and 2540mm (100"). Chandimala, J.; Zubair, L. Predictability of stream flow and rainfall based on ENSO for water resources management in Sri Lanka. This site complies with the HONcode standard for trustworthy health information: verify here. Forward rainfall accumulation from 1 March and 1 September was also calculated. Sri Jayawardenapura Kotte has a significant amount of rainfall during the year. Months with missing data and the seasons in which they fell were excluded from the analysis. Anuradhapura, Sri Lanka. The emphasis is on daily rainfall rather than on longer-period totals, in particular the number of daily falls exceeding given threshold totals. DOI: 10.3390/CLI2040242 Corpus ID: 18032004. The Area of Anuradhapura is roughly 7179.00 km² (2771.83 mi²) The Anuradhapura is an holy place in the Region North Central of the Country Sri Lanka Popular places Melbourne Burt, T.P. The National Statistical System that prevails in Sri Lanka is mostly centralised and it needs to be upgraded to keep abreast with the current data revolution. According to the Brookings Institution, Colombo metropolitan area has a population of 5.6 million, and 752,993 in the city proper. Kripilani, R.H.; Kumar, P. Northeast monsoon rainfall variability over south peninsula India vis-à-vis the Indian Ocean dipole mode. It remains important to assess the risk of drought for both cultivation seasons and to understand how risk varies spatially in relation to the different ENSO phases. High & Low Weather Summary for … Regionalization of daily rainfall in Sri Lanka was examined using orthogonal factor analysis (OFA) based on daily rainfall data of 42 stations for a 15-year period (1971–1985). ; Luc, G. Kaplan, A.; Cane, M.A. The main objective of this study was to identify the spatial distribution of annual and seasonal rainfall in Kandy District (2005-2014) and long term annual and seasonal rainfall trends in Kandy (18752014). Global Economic Prospects - Forecasts. Sri Lanka NSS Review Report New. Heavy rainfall warnings in Sri Lanka. Geethalakshmi, V.; Yatagai, A.; Palanisamy, K.; Umetsu, C. Impact of ENSO and the Indian Ocean Dipole on the north-east monsoon rainfall of Tamil Nadu State in India. Zubair, L. El Niño-Southern Oscillation influences on rice production in Sri Lanka. ; Ferranti, E.J.S. Given Sri Lanka’s location, it is subject to the Indian Ocean (IO) monsoon system, which results in a systematic migration of intense rainfall across the region during the course of a year [, The IO monsoon system is well known to be significantly influenced by the El Niño-Southern Oscillation (ENSO) and ENSO’s influence on Sri Lankan temperature, rainfall and streamflow is well established [. In this study, we used a comprehensive set of statistical metrics to investigate the historical trends in averages and extremes of rainfall and temperature in Sri Lanka. To give you the best possible experience, this site uses cookies. Is it COVID-19 or the flu? When you have reached the point where you no longer expect a response, Rainfall is the liquid form of precipitation. Returning to travel responsibly: World Tourism Day, “The search for the human”: 60 years of supporting health and building understanding. In Sri Lanka, formerly Ceylon, the climate is tropical, and the weather is hot and humid throughout the year.The country is located just north of the equator. those of the individual authors and contributors and not of the publisher and the editor(s). The mean annual rainfall varies from under 900mm in the driest parts (southeastern and northwestern) to over 5000mm in the wettest parts (western slopes of the central highlands). Utilizing over 100 years of rainfall records in 15 meteorology stations, an analysis was carried out to extract the trends of annual rainfall depth in Sri Lanka over the last century. Maximum temperature yesterday: 88 °F (at 2:30 pm) Minimum temperature yesterday: 77 °F (at 5:30 am) Average temperature yesterday: 83 °F. As expected, these patterns are reflected in the number of days with rainfall above a given threshold. The monsoonal rainfall is categorized into 4 main types according to the direction of wind flow. ; Yamagata, T. A dipole mode in the tropical Indian Ocean. See weather overview. Much of Sri Lanka receives 50% of its annual rainfall in the three months beginning October. This location is classified as Af by Köppen and Geiger. In. Is it COVID-19 or the flu? Rainfall data for five rain gauges in one of the most important catchments in Sri Lanka were tested for the rainfall trends. (Weather station: Colombo, Sri Lanka). Figure 01 - Annual rainfall pattern of Colombo district according to past studies. over Sri Lanka. The mountains of the Central Highlands unload the moisture that the winds carry from the Indian Ocean. Zubair, L.; Ropelewski, C.F. Suppiah, R. Four types of relationships between rainfall and paddy production in Sri Lanka. To elaborate comments made above where NINO34 and IOD correlations were compared, A similar pattern of significant correlations is seen for JFM except that the sign has now reversed, showing the drying tendency for this season in the El Niño phase (, As expected from the above results, there was a varying pattern of inter-correlations between stations from the different agro-climatological regions. The year-around warm, wet climate together with thousands years of isolation from mainland India have resulted in the evolution of numerous plants and animal species that can only be found in rain forests in Sri Lanka. (Fig. Less than 10 mm rainfall in a week was defined as a dry week and more than 10 mm as a wet week. Global and regional scale precipitation patterns associated with the El Niño/Southern Oscillation (ENSO). The mean annual rainfall is less than 900mm in the South-eastern and north-western (driest) parts of the island to over 5000mm in the western slopes and the central highlands. Saji, N.H.; Goswami, B.N. The monthly rainfall data have - been collected from 19 rainfall … Monsoons: Processes, predictability, and the prospects for prediction, in the TOGA decade. Read more here. E.I. Yoshino, M.M. What is the driest month in Colombo? ; Palmer, T.N. You can review our privacy policy to find out more about the cookies we use. Average minimum and maximum temperature over the year 2. Throughout the year, in Colombo, there are 145 rainfall days, and 2523.7mm (99.4") of precipitation is accumulated. Webster, P.J. Furthermore, the northward and southward migrations of the Inter Tropical Convergence Zone (ITCZ) during the year also govern the climate. Rainfall Distributions in Sri Lanka in Time and Space: An Analysis Based on Daily Rainfall Data @article{Burt2014RainfallDI, title={Rainfall Distributions in Sri Lanka in Time and Space: An Analysis Based on Daily Rainfall Data}, author={T. Burt and K. Weerasinghe}, journal={Climate}, year={2014}, volume={2}, pages={242-263} } Please select a city you wish to travel to or the one closest to your destination. An extension of the Tahiti-Darwin Southern Oscillation Index. The relationship between eastern equatorial Pacific sea surface temperature and rainfall over India and Sri Lanka. ; Vinayachandran, P.N. PREV. From the daily rainfall data, weekly values were calculated for the entire period of study and the 75% probability of receiving at least 10 mm rainfall in a week was estimated for all the stations. ; Rajagopalan, B.; Hoerling, M.; Bates, G.; Cane, M. Unraveling the mystery of Indian Monsoon Failure during El Niño. 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To Sri Lanka Malaria Correlations in Sri Lanka for the period 1976–2006 °F in Sri have! Of stream flow and rainfall data and climatic indices ( SSTs, SOI, IOD ), P. Northeast rainfall! Opinions and data contained in the catchment over the last 26 years and in!