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Browsing by Author "Hewaarachchi, A.P."

Browsing by Author "Hewaarachchi, A.P."

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  • Forecasting monthly household water consumption supplied by NWSD, Sri Lanka 
    Perera, M.L.D.M.; Hewaarachchi, A.P. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)
    Water is an essential element for the survival of mankind and water supply is a pressing issue in this century. Household water use is generally the most important component of water consumption. In Sri Lanka, lack of ...
  • Homogenization of Daily Temperature Data 
    Hewaarachchi, A.P.; Li, Yingbo; Lund, Robert; Rennie, Jared (American Meteorological Society, 2017)
    This paper develops a method for homogenizing daily temperature series. While daily temperatures are statistically more complex than annual or monthly temperatures, techniques and computational methods have been accumulating ...
  • Multivariate time series models for temperature data in Nuwara Eliya, Sri Lanka 
    Wijayawardhana, H.N.A.M.; Hewaarachchi, A.P. (Faculty of Science, University of Kelaniya, Sri Lanka, 2020)
    Sri Lanka is located north of the equator. Hence, its climate is regarded as a tropical climate and the average mean temperature in Sri Lanka is 27.0 °C (81 °F). However, the temperature in some parts of the island deviates ...
  • A Statistical Analysis of Daily Snow Depth Trends in North America 
    Woody, J.; Xu, Y.; Dyer, J.; Lund, R; Hewaarachchi, A.P. (Atmosphere, 2021)
    Several attempts to assess regional snow depth trends have been previously made. These studies estimate trends by applying various statistical methods to snow depths, new snowfalls, or their climatological proxies such ...
  • A Time Series Analysis to Forecast Monthly Producer Price Indices of Manufacturing Sector and Textile Manufacturing Subcategory of Sri Lanka 
    Weerakoon, H.L.A.; Jayawardhana, K.J.U.M.; Piyasena, K.N.T.; Hewaarachchi, A.P. (Faculty of Commerce and Management Studies, University of Kelaniya, 2021)
    The producer price index (PPI) is a group of indices that represents the average movement in selling prices from domestic production over time. PPI covers major sectors of a country’s economy, and it is used as an objective ...
  • Time series models to forecast number of registered cars in Sri Lanka 
    Sanjeewani, D.S.; Hewaarachchi, A.P.; Gunaratne, M.D.N. (Faculty of Science, University of Kelaniya, Sri Lanka, 2020)
    Even though Sri Lanka is a developing country, the automobile industry of Sri Lanka displays rapid growth recently. The Department of Motor Traffic reports indicates that the number of vehicle registrations has been steadily ...

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