Shiromani Jayawardena

Shiromani Jayawardena
Department of Meteorology, Sri Lanka · Ministry of Dissaster Management

PhD , MSc in Meteorology

About

14
Publications
2,827
Reads
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55
Citations
Citations since 2016
11 Research Items
50 Citations
2016201720182019202020212022051015
2016201720182019202020212022051015
2016201720182019202020212022051015
2016201720182019202020212022051015
Additional affiliations
July 2007 - December 2007
University of Hawaiʻi at Mānoa
Position
  • Research Assistant
Education
March 2012 - July 2016
The Open University of Sri Lanka
Field of study
  • Atmospheric Physics
August 2005 - December 2007
University of Hawaiʻi at Mānoa
Field of study
  • Meteorology
August 1991 - August 1995
University of Peradeniya
Field of study
  • Physics

Publications

Publications (14)
Article
Full-text available
The climate outlook for the 2019 southwest monsoon (SWM) season was prepared through an expert assessment of the prevailing global climate conditions and forecasts from different climate models from around the world during the fourteenth session of the South Asian Climate Outlook Forum (SASCOF14). Above-normal rainfall was predicted over Sri Lanka...
Article
Full-text available
The Intergovernmental Panel on Climate Change needs to do more to include the expertise and voices of women, even as numbers and policies improve. The Intergovernmental Panel on Climate Change needs to do more to include the expertise and voices of women, even as numbers and policies improve.
Article
Full-text available
The aim of this study was to assess the application of gridded precipitation datasets for applications in Sri Lanka and to identify suitable products that can be used for hydrological applications in data sparse regions. Here, nine global datasets were considered for this study and after initial screening, four datasets; IMERG (Integrated Multi‐Sat...
Article
Full-text available
The influence of the Madden Julian Oscillation (MJO) on rainfall in Sri Lanka (SL) is examined based on 30 years of daily station data from 1981-2010. Composites are constructed for each of the eight phases of the MJO defined with the Real-time Multivariate MJO (RMM) index, using daily rainfall data from 44 stations over SL for four climatic season...
Technical Report
Full-text available
The book provides the outcome of a collaborative work FAO, the Department of Agriculture of Sri Lanka, the Department of Meteorology of Sri Lanka, the University of Peradeniya in Sri Lanka, the University of Cantabria in Spain and the University of Milan in Italy. Future climate change impacts on these crops were evaluated using the Modelling Sys...
Article
Full-text available
The influence of the Madden Julian Oscillation (MJO) on rainfall in Sri Lanka (SL) is examined based on 30 years of daily station data from 1981-2010. Composites are constructed for each of the eight phases of the MJO defined with the Real-time Multivariate MJO (RMM) index, using daily rainfall data from 44 stations over SL for four climatic season...
Article
Full-text available
Ocean-atmospheric teleconnections such as El Niño Southern Oscillation (ENSO) are important climatic determinants in studying inter-and intra-seasonal variability of rainfall. The ENSO takes place in the central eastern equatorial Pacific Ocean. Warm and cold phases of ENSO cycle are termed as El Niño and La Niña, respectively. As it influences the...
Article
Full-text available
Trends in 20 extreme indices of temperature and precipitation are examined for Sri Lanka using high-quality datasets for 19 meteorological stations, for a period between 1980 and 2015. It is evident that annually averaged mean minimum temperatures are increasing across most of Sri Lanka. The differ- ence between maximum and minimum temperatures, di...
Article
Full-text available
This study revealed the influence of Madden Julian oscillation (MJO) and cold surge (CS) on the extreme rainfall events that occurred in Sri Lanka from 19th to 28th December 2014. During this period, the Northeast Monsoon winds over the Bay of Bengal were strengthened by a CS, which intensified convective activity over the Bay of Bengal. Simultaneo...
Article
Full-text available
The anomalous circulation patterns during an unusually prolonged stormy-weather period in Hawaii from 19 February to 2 April 2006 are analyzed and are compared with those of two previously known prolonged heavy-rainfall periods (March 1951 and February 1979). The circulation patterns for these three periods are characterized by 1) a negative Pacifi...
Article
Full-text available
A four-day educational cruise navigated around the leeward side of Oahu and Kauai to observe the thermodynamic and dynamic features of the trade-wind wakes of these small islands by using weather balloons and other onboard atmospheric and oceanographic sensors. This cruise was proposed, designed, and implemented completely by graduate students from...

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Projects

Project (1)
Project
The development objective of the Climate Resilience Improvement Project for Sri Lanka is to reduce the vulnerability of exposed people and assets to climate risk and to improve government's capacity to respond effectively to disasters. The project has four components. The first component, development of basin investment plans objective is to identify over United States (U.S.) 1 billion dollar of investments in the form of basin investment plans. Investments to be financed include: (i) acquisition of a digital elevation model; (ii) flood and drought risk modeling; and (iii) identification of basin investment programs. The second component, increasing climate resilience of infrastructure objective is to implement urgent climate risk mitigation investments that have been identified and prioritized by the Government of Sri Lanka (GoSL). Investments will be made in the following areas: (i) flood mitigation; (ii) transport continuity; and (iii) school protection. The third component project implementation will implement the current project management unit (PMU) of the Dam Safety and Water Resources Planning Project (DSWRPP) under the Ministry of Irrigation and Water Resources Management (MIWRM). The fourth component, contingent emergency response funds will help government respond to adverse natural event that causes disasters