scholarly journals PRELIMINARY ASSESSMENT OF WAVE ENERGY IN SRI LANKA

2020 ◽  
pp. 21
Author(s):  
Kusalika Ariyarathne ◽  
Pavithra Jayarathne
Keyword(s):  
Sri Lanka ◽  
Wave Energy ◽  
Sri Lankan ◽  
Energy Potential ◽  
Wave Data ◽  
Density Maps ◽  
South West Monsoon ◽  
Near Shore ◽  
Directional Wave

Preliminary results of a numerical model developed to detail spatial and temporal assessment of theoretically available near shore wave energy, and potential wave energy extracting sites, along the Sri Lankan coast is presented in this paper. Wave energy is estimated applying Danish Hydraulic Institute's Mike 21 Spectral Wave (SW) module. The model is developed and applied covering an area along the coast line of entire country extending from 315000 to 640000 mE, and 602000 to 1164000 mN. Model was run with boundary inputs of wind and wave, based on long term measured, and long term hindcast directional wave data available at seven locations, which are well distributed around the country. Model calibration and validation are carried out based on long term measured directional wave data at Colombo, Sri Lanka. Based on the estimated wave energy density maps, and spatial and temporal energy variations, Hambantota, in South East coast is identified as the most feasible location for wave energy harnessing. Annual and seasonal availability of the wave energy, for Hambantota area, at 25 m depth, were looked into in detail. In the above area, mean annual energy potential was estimated as 10 kW/m at 25 m depth, whereas maximum annual potential energy was estimated as 36 kW/m. During South West monsoon, where high waves are present, the mean energy potential is estimated as 15 kW/m.Recorded Presentation from the vICCE (YouTube Link): https://youtu.be/dPa9istaB7A

Sri Lanka is likely to face early elections

2018 ◽  
Keyword(s):  
Sri Lanka ◽  
Prime Minister ◽  
Political Influence ◽  
Sri Lankan ◽  
National Party ◽  
Legislative Elections ◽  
National Unity ◽  
Party Discipline ◽  
Content Type

Subject Political instability in Sri Lanka. Significance Parliament resumed early last month after being prorogued by President Maithripala Sirisena. Sri Lanka’s National Unity Government (NUG), formed after the 2015 legislative elections, is a coalition between Sirisena’s Sri Lanka Freedom Party (SLFP) and Prime Minister Ranil Wickremesinghe’s United National Party (UNP). Former President Mahinda Rajapaksa’s Sri Lanka Podujana Peramuna (SLPP) leads the Joint Opposition (JO). According to the constitution, a two-thirds parliamentary majority would be required for Sirisena to bring forward the next legislative elections due in 2020. Impacts The breakdown in party discipline in parliament suggests instability will be a long-term feature of Sri Lankan politics. Judicial campaigns against the Rajapaksa family will intensify, despite its sustained political influence. Political uncertainty will cause the Sri Lankan rupee to fall further against the dollar.

Defining the Long-Term Wave Resource at Wave Hub: The Role of Measurements and Models

2008 ◽  
Author(s):  
Joseph Phillips ◽  
Joao Cruz ◽  
Rob Holbrow ◽  
Jeremy Parkes ◽  
Rob Rawlinson-Smith
Keyword(s):  
Wave Energy ◽  
Resource Assessment ◽  
Wave Climate ◽  
Short Term ◽  
Wave Data ◽  
Wave Measurements ◽  
Operations And Maintenance ◽  
South West Coast ◽  
Short Term Forecasting

Wave measurements made on the site of a potential wave energy project can be of high value to developers. Such data can be used to define both long-term and short-term wave energy resources available to devices as well as the optimal operations and maintenance strategy which should be employed for the project. All three of these applications are addressed in an ongoing study commissioned by the npower Juice Fund for the Wave Hub project which is planned off the South West coast of England. The aim of this work is to extract best value from the historical and future wave measurements from the project site. The programme of this project is outlined here with a technical description of activity in the three parallel strands of the study; wave resource assessment, short-term forecasting and O&M modelling. The focus of this paper is on a key aspect of the ongoing work programme - that relates to the use of measured and modelled wave data to derive a prediction of the long-term wave climate at the Wave Hub site. In particular, various candidate methodologies for correlating short-term measured wave data and long-term modelled data are explored in the context of a Measure-Correlate-Predict (MCP) analysis. This work has also included consideration of the inter-annual variability of wave resource in order to examine the uncertainty associated with assuming that a finite historical reference period is representative of the long-term wave climate.

scholarly journals Spatio-Temporal Assessment of Climate Change Impact on Wave Energy Resources Using Various Time Dependent Criteria

Energies ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 768 ◽  
Author(s):  
Bahareh Kamranzad ◽  
George Lavidas ◽  
Kaoru Takara
Keyword(s):  
Climate Change ◽  
Indian Ocean ◽  
Wave Energy ◽  
Fossil Fuels ◽  
Energy Resources ◽  
Southern Indian Ocean ◽  
Future Change ◽  
Short Term ◽  
Energy Potential

The wave energy resources in the Indian Ocean can be considered as a potential alternative to fossil fuels. However, the wave energy resources are subject to short-term fluctuations and long-term changes due to climate change. Hence, considering sustainable development goals, it is necessary to assess both short-term (intra-annual) variation and long-term change. For this purpose, the simulated wave characteristics were utilized, and the wave power and its variation and change were analyzed in the whole domain and nearshore areas. The short-term fluctuation was investigated in terms of monthly and seasonal variations and the future change was discussed based on absolute and relative changes. Both analyses show that the Southern Indian Ocean, despite experiencing extreme events and having higher wave energy potential, is more stable in terms of both short and long-term variation and change. The assessment of the total and exploitable storages of wave energy and their future change revealed the higher potential and higher stability of the nearshores of the Southern Indian Ocean. It can be concluded that based on various factors, the south of Sri Lanka, Horn of Africa, southeast Africa, south of Madagascar and Reunion and Mauritius islands are the most suitable areas for wave energy extraction.

scholarly journals To Be or Not to Be a Hero

2019 ◽  
Vol 5 (1) ◽  
pp. 96-114
Author(s):  
Matti Weisdorf ◽  
Birgitte Refslund Sørensen
Keyword(s):  
Civil War ◽  
Sri Lanka ◽  
Sri Lankan ◽  
Post Injury ◽  
Ethnographic Fieldwork ◽  
The Social ◽  
Material Benefits ◽  
Struggle For Recognition ◽  
Collective Narrative

Based on long-term ethnographic fieldwork in and around a so-called War Hero Village (Ranavirugama) in northwestern Sri Lanka, this article traces the social (un)becomings of Sri Lankan Army veterans injured during the civil war with the Tamil liberation front. It argues that such veterans have long been able to draw on a materially rewarding narrative of sacrifice and carnal capital—epitomized in the honorific ranaviru (war hero)—in order to produce a particular kind of veteran citizenship, let alone subjectivity, and thus to pursue socially meaningful post-injury existences. In the eyes of the veterans themselves, however, this celebratory narrative is eroding and a “collective narrative” characterized by a kind of social forgetting of the injured veteran is emerging. Material benefits notwithstanding, this narrative contestation entails a “struggle for recognition” that threatens to leave them not only disabled but also with no one to be, or become.

scholarly journals EXTREME WAVE PREDICTION USING DIRECTIONAL DATA

1986 ◽  
Vol 1 (20) ◽  
pp. 11
Author(s):  
M.C. Deo ◽  
R. Burrows
Keyword(s):  
Directional Data ◽  
Irish Sea ◽  
Data Set ◽  
Wave Data ◽  
The North ◽  
Wave Heights ◽  
Directional Wave ◽  
The Irish Sea ◽  
Height Predictions

Potential inconsistencies in the predictions of long term wave heights can be experienced as a result of different methods of analysis possible when using directional wave data. This paper attempts to illustrate some of them. It involves analysis of two sets of directional wave data - one froa a coastal location in the Irish Sea and another from an offshore location in the North Sea. An attempt is made to eliminate the discrepancies between the long term return-value wave height predictions based upon the conditional height distributions associa ted with different direction sectors and those derived from the oonl-directional data set.

scholarly journals Are We Ready for An Economic Meltdown? The Impact of COVID19 on Sri Lanka Economy

2020 ◽  
Author(s):  
Prageeth Weerathunga ◽  
WHMS Samarathunga
Keyword(s):  
Sri Lanka ◽  
Central Bank ◽  
Global Economy ◽  
Annual Reports ◽  
Research Articles ◽  
Sri Lankan ◽  
Long Term Effects ◽  
Policy Measures ◽  
The Impact

<p>This essay briefly discusses the impact of COVID-19 on the global economy and the Sri Lankan Economy. The essay begins with an analysis of the global scenario and then discusses the impact on the Sri Lankan Economy. Information required for analysis was obtained from a variety of sources, such as newspapers, websites, blogs, annual reports from the central bank, research articles, books, etc. In this article, we identified different industry that are likely to be seriously affected by the COVID-19 pandemic. The impact on these industries has been discussed and, where applicable, quantified effects have been identified. Finally, a number of policy measures have been proposed to minimize long-term effects on the economy.</p><p><br></p>

scholarly journals Population Pyramid And Economic Growth: An Econometric analysis of Sri Lanka

2018 ◽  
Vol 10 (3) ◽  
pp. 1348-1354
Author(s):  
Pivithuru Janak Kumarasinghe ◽  
Anuraj Wickramasinghe
Keyword(s):  
Economic Growth ◽  
Sri Lanka ◽  
Population Growth ◽  
Time Series Data ◽  
Series Data ◽  
Sri Lankan ◽  
Causality Analysis ◽  
Domestic Savings ◽  
Total Investment

Economists are torn between basically three schools of thoughts where the first theory states that the population growth will stimulate the economic growth of a country and other believes that the population growth will bring detrimental or adverse impact to the economic growth. Not only that, but there is another school of thought, which believes that the population growth is a neutral factor in economic growth. Given this diverse of opinions, through this study it is expected to established a firm relationship between the population growth and the economic growth of Sri Lanka. This study developed an econometric model using time series data from 1980 to 2015 and tested the relationship not only the GDP of Sri Lanka, but other significant variables of an economy such as Domestic Savings, Private consumption and Total Investment as well.  The results of this study indicate absence of a long term relationship between the population growth and the GDP of Sri Lanka and there will be no any relationship between the other selected variables and the population growth of Sri Lanka. The Granger Causality Analysis found out a unidirectional relationship between the GDP and the population growth, running from population growth to GDP. The study concludes that in Sri Lankan context, the population growth will not have any significant impact on the economic growth.

scholarly journals Trade in Asian elephant ivory in Sri Lanka

Oryx ◽  
1999 ◽  
Vol 33 (2) ◽  
pp. 176-180 ◽  
Author(s):  
Charles Santiapillai ◽  
Ajith Silva ◽  
Champika Karyawasam ◽  
Shameema Esufali ◽  
Salila Jayaniththi ◽  
...  
Keyword(s):  
Sri Lanka ◽  
Endangered Species ◽  
Turn Of The Century ◽  
Elephas Maximus ◽  
Sri Lankan ◽  
Recent Past ◽  
Term Survival ◽  
In The Wild ◽  
Elephant Ivory

AbstractElephants Elephas maximus have declined in range and number in the wild in Sri Lanka, from c. 12,000 at the turn of the nineteenth century to c. 4000 today. While in the distant past the decline in elephant numbers was due largely to indiscriminate killing by sportsmen and trophy hunters, today elephants are being killed primarily because they interfere with agriculture. Human-elephant conflicts have increased substantially in the recent past and ivory poaching has become a byproduct of such conflicts. Elephant tusks have been used traditionally in the ivory-carving industry in Sri Lanka since the time of the ancient kings. Until the turn of the century, very little ivory was imported from Africa because there was a plentiful supply of tuskers locally available. Sri Lankan ivory carvers started to use African ivory in 1910. Today ivory and fake-ivory products are sold openly to tourists in some 86 shops in the island. Before the listing of the African elephant in Appendix I of the Convention on International Trade in Endangered Species (CITES), the value of raw ivory in Sri Lanka used to be $US228–285 per kg. After the listing, the price fell to $US72 per kg, reflecting a drastic drop in the demand for ivory from tourists. Many ivory carvers have switched to other jobs or are using substitutes (such as bone and horn) to produce fake-ivory carvings. Only about 7.5 per cent of bulls in Sri Lanka are tuskers and they are under poaching pressure outside protected areas. Given the rarity of tuskers in Sri Lanka, promotion of trade in ivory products, even locally, may pose a serious threat to their long-term survival in the wild.

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