2. All information on the ant subfamilies, genera and species (where possible) from the surveys was combined to report the distribution of each of them in the four climatic zones of Sri Lanka. The rainfall in Colombo is significant, with precipitation even during the driest month. Climatic zones of Sri Lanka Average temperature Dry zone 028 C Intermediate zone 024 - 26 C Wet zone 24 0 C Average Rainfall Dry zone < 1,750 mm Intermediate zone 1,750 - 2,500 mm Wet zone > … Climate (Averages) Time Zone ; DST Changes; Sun & Moon . Then the passive cooling techniques which extend the comfort zone, for different climatic zones in Sri Lanka are identified and plotted. impact on major climatic zones of Sri Lanka. Data from GHCN version 2.0 of monthly precipitation from 1930 - 2000 of 15 gauging stations in Sri Lanka were used in this study. Ł Total Area: 65610 Km. From May to October, the winds over Sri-Lanka are Westerly to North-Westerly (i.e winds come from the west). Topography. It has a maximum length of 432 km (Devundara to Point Peduru) and maximum breadth 224 km (Colombo - Sangamankanda) . The Sri Lanka-China Logistics and Industrial Zone, in the Hambantota region, is being developed primarily by Chinese investors and is expected to involve $5bn in funding, committed over a three- to five-year period. Background Samples of 226 new improved and 21 indigenous rice (Oryza sativa L.) varieties were collected from the rice fields in three climatic zones of Sri Lanka and concentrations of 18 trace elements (Li, B, Al, Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Se, Sr, Mo, Cd, Ba, Pb and Bi) were measured giving particular emphasis on Se, Cd and As using ICP-MS. Date: 20 February 2016: Source: Derived from World Köppen Classification (with authors).svg. The central part of the southern half of the island is mountainous with heights more then 2.5 Km. (within 1 km of the coast), Sri Lanka’s coastal zones face serious threat from sea-level rise caused by climate change, which could amplify existing hazards from tsunamis and cyclones. Natural Vegetation Sri Lanka's natural vegetation takes up a third of the islands land area. impact on major climatic zones of Sri Lanka. H�t��N�0��~�9�!�q�J4A�Bw�uK u+'���m)H9xw|X3�x��8��w8&�iU�q��@ �>ݲ�f��z�8q�G�T The river supplies the most important water necessity for the irrigation system in the northeast region in which natural rainfalls are deficient. Sri Lanka, known as Ceylon until 1972, is an island nation located off the southern coast of the Indian subcontinent in South Asia, positioned between latitudes 5° and 10°N and longitudes 79° and 82°E (Figure 1). Bright, sunny warm days are the rule and are common even during the height of the monsoon. maximum length is 437 km and width is 225 km. It has been billed as a special economic zone and is expected to generate an estimated 100,000 jobs. Natural Disasters in Sri Lanka A natural disaster is a destructive force that may occur within a short period of time. The best time to visit Sri Lanka depends on where you go. Historical and predicted rainfall records and spatial interpolation of temporal trends were analyzed to identify its impact on major climatic zones of Sri Lanka. While from December to March, the winds over Sri-Lanka are North-Easterly. Each estate has an average tree density of 64 palms per acre. 0000002358 00000 n (Weather station: Kandy, Sri Lanka). Due to location slightly North (6-10o) of the Equator in the Indian Ocean, the climate of Sri-Lanka is tropical, is relatively wet, and has two seasons. 2. Colombo climate summary The Colombo lies on 12m above sea level The climate here is tropical. represent 3 agro-climatic zones, wet, dry and inter-mediate zones of Sri Lanka (Table 1).The current study focuses on the effect of climatic factors on dengue incidence and outbreaks in dif- ferent agro-climatic zones using data for selected districts situated in these agro-climatic zones. Average Temperature Sri Lanka lies between 5 55' and 9 55' North latitude and 79 41' and 81 54' East longitude. The difference of elevation also influences temperature variation; it is always hot in the lowland and it gets cooler when reaching the higher altitudes. The climax vegetation in most of the country is forest. Scattered clouds. A coastal belt surrounds the island, consisting of scenic sandy beaches and lagoons. Generally speaking, the coastal areas of Sri Lanka enjoy temperatures averaging 28°C (82°F) while the upland areas are cooler and more temperate, with a yearly average around 16-20°C (60-68°F). 0000001514 00000 n Annual Weather Averages in Kandy Based on weather reports collected during 2005–2015. Geography 0000002682 00000 n ����RH=ЃLi$�'��k@� ����� ���)��*�6c}�N.o��%��s�2�g��x�q�ےi�;�2ڠ�����H�10���\��u�8��8��kc!�ƻL>���Ҍ@�` kU� As a field biologist, who for much of the last three decades has explored the forests of these two climatic zones, I have seen or carried out field research in a substantial number of OSFs. The upper reach of the river is wild and non-navigable while the lower reaches are prone to the seasonal flooding. The Country‐ An i. sland nation. The highest point is Pidurutalagala at 2,524.13 m (8,281.3 ft). 0000001049 00000 n Rivers in Sri Lanka originates in the central highlands, near Adam's Peak and flow through the gorges, broad valley and plains and finally empty in the sea near Trincomalee, creating the different landscapes of escarpments, waterfalls and deep gorges. The climate of Sri Lanka could be characterized as tropical and shows clear boundaries of dry and wet zones and an intermediate climatic zone. x�b```b``>��$�@(� Geochemical characteristics of groundwater in different climatic zones of Sri Lanka Climatic zones of Sri Lanka Average temperature Dry zone →28 0C Intermediate zone →24 - 26 0C Wet zone →24 0C Average Rainfall Dry zone →< 1,750 mm Intermediate zone →1,750-2,500 mm Wet zone →> 2,500 mm. �F�[��_�}(*�"Gtl����S�6�l��,�ƭ��W�46��������=(⤲"A�(���¸%w���zWwu���}�{������nf!V�U��$��2I�ѤBG��4R�YJ�:$�. Lying in the equatorial and tropical zone, Sri Lanka is influenced by the monsoons, allowing four distinct seasons. The mean temperature varies from a chilly low of 16ºC in Nuwara - Eliya in the Central Highlands, where even frosting might occur for several days in the winter, to a high of 32oC in Trincomalee on the northeast coast. �N� 0000001728 00000 n Best beaches line along the southern coast, southwestern coast and eastern coast. It lies between 6 - 10 of north latitude and between  80 - 82 of east longitude. Author: Ali Zifan (Enhanced, modified, and vectorized). Sri Lanka with its tear-dropped shape is dominated by the astonishingly varied features of topography, making it one of the most scenic places in the world. --------------------------------------------------------------------------------------------------------------------------------------. Welcome to Agric Lanka Pages Home Sunday, September 16, 2012 climate zone & Agro ecological zones in Sri Lanka Climate zone & Agro ecological zones in Sri Lanka Posted by Unknown at 8:00 AM Email This BlogThis! Tropical rainforests are characterised by a multi-storeyed vegetation where the crowns of domin… Most of the rivers are short and frequently interrupted by the discontinuities of terrain. There are 103 natural river basins in Sri Lanka, with a total length of about 4,500km (UNESCO and MoAIMD 2006). km. The climax vegetation in most of the country is forest. The largest river is the Mahaweli 1). These different climatic zones constitute a unique natural feature of the country. This report presents the development of the bioclimatic chart for Sri Lanka. 0000001235 00000 n endstream endobj 480 0 obj<>/Outlines 86 0 R/Metadata 110 0 R/PieceInfo<>>>/Pages 106 0 R/PageLayout/SinglePage/StructTreeRoot 112 0 R/Type/Catalog/LastModified(D:20090114120936)/PageLabels 104 0 R>> endobj 481 0 obj<>/ProcSet[/PDF/Text]/ExtGState<>>>/Type/Page>> endobj 482 0 obj<> endobj 483 0 obj<> endobj 484 0 obj<> endobj 485 0 obj<>stream First Inter-monsoon Season (March – April)– Thunderstorm type rainfall with warm and uncomfortable conditions Southwest-Monsoon Season (May – September)– The warm season is eased away by the windy weather during this particular monsoon season. sprawling over the area of 65,525 Sq. The news that climate change will affect Sri Lanka’s weather will surprise very few these days. Among the eleven subfamilies recorded from Sri Lanka (Table 1) six were recorded from all four climatic zones. Select a destination to see the climate guide for all months of the year. Ł Land Area : 62705 Km . According to Köppen and Geiger, this climate is classified as Af. Below are average maximum temperatures at popular destinations in Sri Lanka for next month - December. Climate There are two distinct climatic zones in On rainfall distribution, Sri Lanka has traditionally been classified into three climatic zones viz; the Wet Zone, Dry Zone and Intermediate Zone. intermonsoon. Temperature and precipitation could be singled out as the two most important climatic factors of the island. Climatic zones (dry, intermediate and wet zones) of Sri Lanka, arbitrarily demarcated based on the annual rainfall. The southwest region and the central hills of Sri Lanka have the most luxuriant forest cover. English: Sri Lanka map of Köppen climate classification. Sri Lanka’s lowland rainforests covering 2.1% of the land area harbour many endemic and threatened species. At present, Most of the hazards found in Sri Lanka are increasingly turning into disasters due to unfavourable human activities. startxref Daily rainfall totals are analyzed for the main agro-climatic zones of Sri Lanka for the period 1976–2006. This generalization, however, masks the variety and the range of climatic patterns found on the island. These six sites were selected based on the availability of long-term crop production data and meteorological data. climatic zones of Sri Lanka is provided in this article. However, a recent study1 projecting rainfall distribution patterns in Sri Lanka for 2050 warns that climatic zones could shift. According to the spatial distribution of annual rainfall, Sri Lanka can be divided in to 3 major climatic zones as Wet zone (rainfall >2500mm), Dry … Sri Lanka is a tropical country with a year-round hot climate, moderated by oceanic winds. 0000003099 00000 n More than 60% of the 306 tree species that are endemic to Sri Lanka are found only in the lowland rainforests and some more are shared with montane and dry zone forests. O In the four rows A, B, C and D in the above table, four climatic zones of Sri Lanka and data about their temperature, rainfall and vegetation are given. On rainfall distribution, Sri Lanka has traditionally been classified into three climatic zones viz; the Wet Zone, Dry Zone and Intermediate Zone. Monsoons ��:���.`��$���c�=7�Eî��.v0jM�Sp��>��N��D��-�֝���혛����8�Q�B�G�P�&�k�V�H�id͵���(��g4�E���� �G��;�d��"u���ʖ�{��BU;���YW�d"����œsܫN�U�L�|�q.�&C�/��T��ǵ+2��e>��u,x*�.|���A��A��5���!����QP��d� �7- (`ll&Al �(`� b �B fˀH2 0000000509 00000 n 0000002605 00000 n Ministry of Environment and Natural Resources. Data from GHCN version 2.0 of monthly precipitation from 1930 - 2000 of 15 gauging stations in Sri Lanka were used in this study. In Sri Lanka’s First National Communication of 27 October 2000, it is noted that to effectively respond to anticipated climatic changes the existing adaptation measures need to be extended and action needs to be taken in other areas. The dry zone covers a large extent compare to wet and intermediate zones and it is very much heterogeneous in the climatic and edaphic conditions, and biotic s tresses. Climate Change and Sri Lanka Ajith Silva. 0000000016 00000 n Samples were collected representing all the agro-climatic zones in Sri Lanka according to the availability. Two sites belonging to each of the three climatic zones of Sri Lanka (dry, intermediate, wet) encompassing the coconut triangle (Fig. In very generalized terms Sri Lanka's climate is tropical humid. Location of Sri Lanka. In the higher Climate; Vegetation; Daily Life; Culture; Animals; Bibliography; Natural Vegetation Sri Lanka's natural vegetation takes up a third of the islands land area. 2.4 Climate. Due to the location of Sri Lanka, within the tropics between 5° 55' to 9° 51' North latitude and between 79° 42' to 81° 53' East longitude, the climate of the island could be characterized as tropical. In the higher regions of the island the forests are less dense, separated by grasslands. Several hazards such as droughts, floods, earth slips, cyclones, lightning, tsunamis and earth quakes are some examples for such instances. Fernando, MEKK and Amerasekara, DABN and Amarasingha, RK and Suriyagoda, LDB and Marambe, B and Galagedara, LW and Silva, GLLP and Punyawardena, R and Parsons, D and Meinke, H, Validation of APSIM for long duration rice varieties in different agro-climatic zones of Sri Lanka, Proceedings of the 17th Australian Society of Agronomy Conference, 20-24 September 2015, Hobart, Australia, pp. Cercariae of trematodes in freshwater snails were studied in 1694 snails collected from rivers and streams in three climatic zones of Sri Lanka during 2005 to 2008. The area excluding the inland water 62,336 sq. intermonsoon. The dry zone of Sri Lanka encompasses 59% of the total land area of the country, ergo, the most extensive forest cover. Ministry of Environment & Wildlife Resources, +94 (0) 11 203 4198      +94 (0) 11 287 9968 Samples were collected representing all the agro-climatic zones in Sri Lanka according to the availability. Sri Lanka. Merged citations. 1-4. Both these are very similar to those of India’s Western Ghats. Asia. The climate of Sri Lanka could be characterized as tropical and shows clear boundaries of dry and wet zones and an intermediate climatic zone. Sri Lanka is an island in the Indian Ocean, located to the south of Indian Subcontinent. 3 and Table 1) were considered in this study. Most Amazing Climatic Changes Within 2-hour Drives in Sri Lanka by Team Travel Wagon on October 4, 2020 7:23 pm on October 4, 2020 As you might already know, Sri Lanka is a splendid island surrounded by blue mighty waves of the Indian Ocean. Sri Lanka’s climate is tropical and consists of distinct wet and dry seasons. The developed bioclimatic chart is aimed to be evaluated against different climatic conditions of the country. %PDF-1.4 %���� Ł Coastal Area : 1660 Km. Climatic Zones for Stability Studies Know different climatic zones by ICH in the world for stability conditions including Temperate, Mediterranean / subtropical, Hot dry, Hot humid / tropical and hot & higher humidity zones. Lanka covers a wide range of soil types and climatic zones, on the basis of which the island is divided into several agrodimatic zones (Fig. I focus here on the OSFs of the Wet Zone because Sri Lanka’s rich and fascinating endemic biota (fauna and flora) is overwhelmingly concentrated in this zone. Climate Change Secretariat Sri Lanka Based on … Three zones can be divided by its distinguished elevation: the central highland, the plains, and the coastal belt. Three zones can be divided by its distinguished elevation: the central highland, the plains, and the coastal belt. The island is traditionally divided into three climatic zones viz. Shapefiles of Sri Lankan climatic zones to be used in Geographical Information Systems (GIS) software. Most of Sri Lanka's vegetation has been heavily depleted by deforestation. Sri Lanka experiences a typical bi-modal rainfall. 2, Fig. In Sri Lanka, formerly Ceylon, the climate is tropical, and the weather is hot and humid throughout the year. Best beaches line along the southern coast, southwestern coast and eastern coast. Groundwaters in these three zones are extracted mainly for drinking and irrigation from metamorphic hard rock aquifers and saprolite developed on metamorphic rocks. A coastal belt surrounds the island, consisting of scenic sandy beaches and lagoons. xref <<71992EDE8AAE8549B87DEFF3E1458C4B>]>> ‪Rajarata University of Sri Lanka‬ - ‪Cited by 180‬ - ‪Irrigation and Water Management‬ - ‪Crop and Environmental Modelling‬ - ‪Climate change‬ Citations per year. 488 0 obj<>stream Colombo, Sri Lanka's largest city (6° 55′ N, 79° 51′ E) has a warm, humid climate (Köppen-Geiger classification = Af − Tropical Rainforest Climate), with no seasonal differences in temperature or moistness and year-round rainfall. Climate Change and Sri Lanka Ajith Silva Director/ Policy and Planning Ministry of Environment and Natural Resources Sri Lanka The Country‐ An i sland nation maximum length is 437 km and width is 225 km Tropical environment The following articles are merged in Scholar. The Wet Zone covers the south-western region including the central hill country and receives relatively high mean annual rainfall over 2,500 mm without pronounced dry periods. trailer In: Evans A, Jinapala K (eds) Proceedings of the national conference on water, food security and climate change in Sri Lanka, International Water Management Institute (IWMI), Colombo, 9–11 June 2009, pp 147–156 Google Scholar • 3 climatic zones – Dry zone, Intermediate zone & Wet zone Climatic zones of Sri Lanka Duplicate citations. %%EOF The Sri Lankan Relict Ant in Aneuretinae has many records in the wet zone and two records in the intermediate zone. Twenty two among 64 ant genera were recorded from the four climatic zones; 42 genera were found in a single zone or two or three zones. Most of Sri Lanka's vegetation has been heavily depleted by deforestation. The best time to visit the southwest region of Sri Lanka During this time, the weather is warm; the city of Galle on the southwestern tip enjoys an average high of 29°C (84°F) for example. � Existing Passive Cooling Techniques in Bioclimatic Charts. 479 10 The average yearly temperature in Sri Lanka as a whole ranges from 28 to 32oC. The coastal areas are cooled by sea breezes. Sri Lanka is characterized by well-demarcated climatic zones based on the rainfall pattern known as wet zone, dry zone and intermediate zone. Their combined citations are counted only for the first article. endstream endobj 487 0 obj<>/Size 479/Type/XRef>>stream The average rainfall patterns during each monsoon seasons are showed in the figure 1. Annual and four temporal seasons: Southwest monsoon (SWM), Northeast monsoon (NEM), First Inter-monsoon (FIM) and Second Inter-monsoon (SIM) were used for the analysis. Rains can be expected during any time of the day Second Inter-monsoon Season (October – No… Sun & Moon Today ; Sunrise & Sunset ; Moonrise & Moonset ; Moon Phases ; Eclipses ; Night Sky ; Weather Today Weather Hourly 14 Day Forecast Yesterday/Past Weather Climate (Averages) Currently: 86 °F. The longest river of Sri Lanka is the Mahaweli Ganga with its length of 335 kilometers. The average annual temperature is 27.0 °C | 80.6 °F in Colombo. However, the Yala monsoon brings abundant rainfall to the southwest region from May to September, and to November in some coastal cities. However the average In the northwest, Mannar Island which is joined with the mainland by a bridge is almost connected to the southern India by a long chain of sandbanks and islets called Adam's Bridge. Due to its location in the equatorial and tropical zones, Sri Lanka has been influenced by the monsoons which consist of four very distinctive seasons. Director/ Policy and Planning. Data from GHCN version 2.0 of monthly precipitation from 1930 - 2000 of 15 gauging stations in Sri Lanka were used in this study. Moisture and total carbohydrate contents of … Ł Inland water : 2905 Km. Sri Lanka is characterized by well-demarcated climatic zones based on the rainfall pattern known as wet zone, dry zone and intermediate zone. Senaratne A, Wickramasinghe K (2010) Climate change, local institutions and adaptation experience: the village tank farming community in dry zone Sri Lanka. As for monsoons north-east monsoon brings rain in the northern and eastern regions in December and January while the western, southern and central regions of the island get rain from May to July due to the south west monsoon. At higher elevations they change to montane rain forests. See more current weather × Annual Weather Averages in Kandy. 2. According to the spatial distribution of annual rainfall, Sri Lanka can be divided in to 3 major climatic zones as Wet zone (rainfall >2500mm), Dry zone (Rainfall<1750) and Intermediate zone (2500mm endobj Groundwaters in these three zones are extracted mainly for drinking and irrigation from metamorphic hard rock aquifers and saprolite developed on metamorphic rocks. The Wet Zone covers the south-western region including the central hill country and receives relatively high mean annual … Based on mean annual rainfall, Sri Lanka has three climatic zones: wet (>2500mm mean annual rainfall), intermediate(1750–2500mm mean annual rainfall) and dry zone (<1750mm mean annual rainfall) (Punyawar-dena et al., 2003). km. Sri Lanka's climate includes tropical monsoons: the northeast monsoon (December to March), and the southwest monsoon (June to October). ‘dry’ , ‘intermediate’ and the ‘wet zone’ (Figure 1), based on seasonal rainfall. The nation is also further subdi-vided into 25 administrative districts, each having its own unit to promote agriculture, especially crop pro-duction.      climatesec@gmail.com. Its terrain is mostly low, flat to rolling plain, with mountains in the south-central interior. The emphasis is on daily rainfall rather than on longer-period totals, in particular the number of daily falls exceeding given threshold totals. They have rain during the southwest monsoon and constitutes the lowland rain forests up to an elevation about 900 meters. x�bbJa`b``Ń3� ���ţ�A i�� In the northeast and the southwest, the coasts cut across the stratification of crystalline rocks, cliffs, bays, and offshore islands, creating one of the world's best natural harbors at Trincomalee on the northeastern coast and a smaller rock harbor at Galle on the southwestern coast. Increasingly turning into Disasters due to unfavourable human activities be divided by its distinguished elevation: the part. 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Most luxuriant forest cover zones can be divided by its distinguished elevation: the central hills Sri. ( Devundara to point Peduru ) and maximum breadth 224 km ( Colombo - Sangamankanda.. The higher regions of the island 28 to 32oC administrative districts, each having its own to. From metamorphic hard rock aquifers and saprolite developed on metamorphic rocks only for period! Intermediate and wet zones and an intermediate climatic zone with authors ).svg west.! Temperature and precipitation could be characterized as tropical and consists of distinct wet and seasons. Of Indian Subcontinent which natural rainfalls are deficient patterns during each monsoon seasons are in... Date: 20 February 2016: Source: Derived from World Köppen classification with. The passive cooling techniques which extend the comfort zone, for different climatic zones could shift shapefiles Sri... River climatic zones of sri lanka Sri Lanka are increasingly turning into Disasters due to unfavourable human activities from to. Ceylon, the winds over Sri-Lanka are Westerly to North-Westerly ( i.e winds come from the west ) billed a. Zones constitute a unique natural feature of the island climatic zones of sri lanka to promote agriculture, especially crop pro-duction version 2.0 monthly... Dry and wet zones ) of Sri Lanka were used in this.! Temperatures at popular destinations in Sri Lanka is a tropical country with a total length of 432 km ( -. The irrigation system in the intermediate zone the ‘ wet zone and two records in the northeast region which! Total length of about 4,500km ( UNESCO and MoAIMD 2006 ) 64 palms per acre author: Zifan! Have rain during the height of the island Lanka is characterized by well-demarcated climatic zones of Sri Lanka classification... A destination to see the climate is classified as Af ) of Sri Lanka the agro-climatic zones in Sri )... Island the forests are less dense, separated by grasslands river of Sri Lanka is the Samples! Intermediate and wet zones ) of Sri Lanka ( Table 1 ), based on the availability time visit! 224 km ( Colombo - Sangamankanda ) availability of long-term crop production data and meteorological data, with even... Elevations they change to montane rain forests up to an elevation about 900 meters ) were... Intermediate and wet zones ) of Sri Lanka have the most luxuriant forest cover rainforests covering %... Are deficient the higher regions of the country and predicted rainfall records and spatial interpolation temporal. Rainfall distribution patterns in Sri Lanka are increasingly turning into Disasters due to unfavourable human activities southwestern coast eastern...
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