National training workshop in Sri Lanka on Enhancing Paddy Mapping through Open-Source Geospatial Data and Technologies
Sri Lanka’s rice sector plays a vital role in national food security, yet traditional field-based monitoring methods remain labor-intensive and time-consuming. With recurring climate extremes and increasing pressure on agriculture, the use of satellite-based Earth Observation (EO) technologies has b...
| Autores principales: | , , |
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| Formato: | Informe técnico |
| Lenguaje: | Inglés |
| Publicado: |
International Water Management Institute
2025
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/179277 |
| _version_ | 1855525304718589952 |
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| author | Alahacoon, Niranga Jayamini, Kalpani Amarnath, Giriraj |
| author_browse | Alahacoon, Niranga Amarnath, Giriraj Jayamini, Kalpani |
| author_facet | Alahacoon, Niranga Jayamini, Kalpani Amarnath, Giriraj |
| author_sort | Alahacoon, Niranga |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Sri Lanka’s rice sector plays a vital role in national food security, yet traditional field-based monitoring methods remain labor-intensive and time-consuming. With recurring climate extremes and increasing pressure on agriculture, the use of satellite-based Earth Observation (EO) technologies has become essential for timely and accurate mapping of paddy cultivated areas to forecast the yield. To strengthen the national technical capacity, a training workshop was conducted focusing on the use of open-source geospatial tools and Synthetic Aperture Radar (SAR) satellite data, particularly Sentinel-1, for high-resolution paddy mapping. The workshop introduced participants to the full workflow of satellite-based rice monitoring, from data preprocessing and time-series analysis to classification, accuracy assessment, and validation. Led by experts from the International Water Management Institute (IWMI), the sessions included theoretical presentations, hands-on exercises, and live demonstrations using platforms such as Google Earth Engine (GEE), QGIS, Python, and Google Colab. Participants gained practical skills in using SAR-based indices, recognizing crop growth stages, and generating reliable paddy extent maps. Discussions highlighted a strong interest in applying these tools to irrigation schemes managed by the Mahaweli Authority, with recommendations for further field-based training and data integration. The workshop successfully strengthened national capacity and advanced the use of EO technologies for sustainable agricultural planning in Sri Lanka. |
| format | Informe técnico |
| id | CGSpace179277 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | International Water Management Institute |
| publisherStr | International Water Management Institute |
| record_format | dspace |
| spelling | CGSpace1792772025-12-25T02:07:43Z National training workshop in Sri Lanka on Enhancing Paddy Mapping through Open-Source Geospatial Data and Technologies Alahacoon, Niranga Jayamini, Kalpani Amarnath, Giriraj rice spatial data decision-making satellite observation technology Sri Lanka’s rice sector plays a vital role in national food security, yet traditional field-based monitoring methods remain labor-intensive and time-consuming. With recurring climate extremes and increasing pressure on agriculture, the use of satellite-based Earth Observation (EO) technologies has become essential for timely and accurate mapping of paddy cultivated areas to forecast the yield. To strengthen the national technical capacity, a training workshop was conducted focusing on the use of open-source geospatial tools and Synthetic Aperture Radar (SAR) satellite data, particularly Sentinel-1, for high-resolution paddy mapping. The workshop introduced participants to the full workflow of satellite-based rice monitoring, from data preprocessing and time-series analysis to classification, accuracy assessment, and validation. Led by experts from the International Water Management Institute (IWMI), the sessions included theoretical presentations, hands-on exercises, and live demonstrations using platforms such as Google Earth Engine (GEE), QGIS, Python, and Google Colab. Participants gained practical skills in using SAR-based indices, recognizing crop growth stages, and generating reliable paddy extent maps. Discussions highlighted a strong interest in applying these tools to irrigation schemes managed by the Mahaweli Authority, with recommendations for further field-based training and data integration. The workshop successfully strengthened national capacity and advanced the use of EO technologies for sustainable agricultural planning in Sri Lanka. 2025-12-24 2025-12-24T05:26:50Z 2025-12-24T05:26:50Z Report https://hdl.handle.net/10568/179277 en Open Access application/pdf International Water Management Institute CGIAR Climate Action Program Alahacoon, N.; Jayamini, K.; Amarnath, G. 2025. National training workshop in Sri Lanka on Enhancing Paddy Mapping through Open-Source Geospatial Data and Technologies. Report of the National Training Workshop in Sri Lanka on Enhancing Paddy Mapping through Open-Source Geospatial Data and Technologies, Colombo, Sri Lanka, 10 October 2025. Colombo, Sri Lanka: International Water Management Institute (IWMI). CGIAR Climate Action Program. 20p. |
| spellingShingle | rice spatial data decision-making satellite observation technology Alahacoon, Niranga Jayamini, Kalpani Amarnath, Giriraj National training workshop in Sri Lanka on Enhancing Paddy Mapping through Open-Source Geospatial Data and Technologies |
| title | National training workshop in Sri Lanka on Enhancing Paddy Mapping through Open-Source Geospatial Data and Technologies |
| title_full | National training workshop in Sri Lanka on Enhancing Paddy Mapping through Open-Source Geospatial Data and Technologies |
| title_fullStr | National training workshop in Sri Lanka on Enhancing Paddy Mapping through Open-Source Geospatial Data and Technologies |
| title_full_unstemmed | National training workshop in Sri Lanka on Enhancing Paddy Mapping through Open-Source Geospatial Data and Technologies |
| title_short | National training workshop in Sri Lanka on Enhancing Paddy Mapping through Open-Source Geospatial Data and Technologies |
| title_sort | national training workshop in sri lanka on enhancing paddy mapping through open source geospatial data and technologies |
| topic | rice spatial data decision-making satellite observation technology |
| url | https://hdl.handle.net/10568/179277 |
| work_keys_str_mv | AT alahacoonniranga nationaltrainingworkshopinsrilankaonenhancingpaddymappingthroughopensourcegeospatialdataandtechnologies AT jayaminikalpani nationaltrainingworkshopinsrilankaonenhancingpaddymappingthroughopensourcegeospatialdataandtechnologies AT amarnathgiriraj nationaltrainingworkshopinsrilankaonenhancingpaddymappingthroughopensourcegeospatialdataandtechnologies |