Flood Analysis with ALOS Palsar Data Flood Waters in Colombo District, Sri Lanka acquired on 18th May 2010 380000 390000 400000 410000 80°0'0"E 80°10'0"E Mattakkuliya ! Kudagama ! Weralupitiya ! 0 Kanampella 0 ! 0 0 0 Eswatta North 0 ! 0 Modara Seethagama 0 ! ! 7 7 7 Ukwatta 7 Boliatawa ! ! Puwakpitiya ! Thalapathpitiya COLOMBO ! Kahawa Sedawatta ! ! Tawalgoda Eswatta South ! Kosgama Ihala ! Waragoda Pattara ! ! ! Kiriwandala Orugodawatta ! Kiriwandala ! ! ! Kotuwila Kotahe! na ! Muruthagama Paranagama Dolaihala ! ! Meetotamulla Kelanimulla ! ! ! ! Wenawatta ! ! ! Akarawita COLOMBO ! ! Alubodala ³ Kittapahuwa Mulleriyawa North ! ! ! Kohilawatta Kosgama Pahala Galapitamada New Bazaar Ihala Boomiriya ! ! ! ! ! Pettah Maligawatta ! Brandiyawatta Ambatale ! ! Belagama ! Kosgama Dematagoda ! ! Miriswatta ! Palhinimatagama Model Village ! Wellampitiya ! ! Megoda Kolonnawa Aluth Ambalama ! ! Kaduwela Palabotelanda ! Fort Angoda ! ! ! Puwakpitiya Kolonnawa Kaduwela Hingurala ! ! ! Salawa ! ! Arapangala KOLONNAWA ! Himbutana ! ! Weliwita ! ! Kadugod North Kotikawatta Angoda Pahala Bomiriya Karagalla ! Puwakpitiya Maradana ! ! ! ! ! ! Kolonnawa Gotatuwa Kahatapitiya ! ! Udumulla Hewagama ! ! ! Suduwella Weralupitiya Kompannaveediya ! ! ! ! Himbutana ! Weragolla Boralugoda ! V Yakbedda ! ! ! Kotalawala Kandugoda South ! Kaluaggala ! Kalapaluwawa ! HANWELLA ! Madinnagoda Aggona Borella Rajagiriya ! ! Talahena Town Hall ! ! ! ! Ranala Mawalagama ! ! Berendigamola Kahapola Uruwela Kollupitiya Walpola ! ! ! ! Cinnamon Garden ! Ambulagama ! ! Pahala Mambula Koratota ! Welikada East ! Nawagamuwa ! Battaramulla North Malambe ! Mambula ! Koswatta ! Hanwella ! ! Henpita ! Niripola Talangama North ! ! ! Hanwella Pahala Malambe ! ! Henpita Hanwella Ihala ! ! ! Waga Ethul Kotte KADUWELA ! ! Neluwatoduwa TIMBIRIGASYAYA ! ! V Battaramulla South kodiyana pahathgama Narahenpita ! ! ! ! Nawala Akurugoda Arangala Jalatara Atigala ! ! ! Oruwala ! ! Kolankanda Kahahena Ilukowita Bambalapitiya Pelawatta ! ! ! ! ! ! Timbirigasyaya ! ! ! Dedigamuwa SRI JAYAWARDANAPURA KOTTE (NUG ! Atygala Welkanna Polhengoda Talangama South ! ! Ella Uda Hawlock Town ! ! ! ! Elamalawala Pagoda Walpita Tunnana East Diddeniya ! ! ! ! ! Morakella Pannagulla Kirallapona Jayawadanagama ! ! ! ! Mullegama ! Lenagala ! Batawala ! Madiwela Hokandara South ! ! Pelpola ! ! ! 0 Jubilee Post Pore 0 ! ! ! Batawala Tunnana west 0 Talawatugoda ! 0 ! Nugegoda Nugegoda Mirihana ! Meegoda North 0 Wellawatta 0 ! !! Edirigoda! Hokandara South ! 0 ! ! 0 6 Morahena Kiriatula 6 Kohuwala ! Aturugiriya Pinnawala ! 7 ! Kohuwala ! Habarakada ! 7 ! Talapathpitiya ! Panaluwa ! ! Kalubowila ! Balapokuna ! ! Kalalgoda Walgama Mawathagama ! Gangodawila North ! ! ! Thunmodara Udahamulla Panagoda Wawelpanawa Waga ! ! ! ! ! ! Puwakgahahena Kottawa North Panagoda West Panagoda East ! Uggala Waga West ! ! Meepe ! ! Navinna MAHARAGAMA Rukmale ! ! ! Watareka North ! Polwatta Gangodawila South ! ! ! ! ! Polwatta Beddegedaramalla Meepe Junction DEHIWALA - MOUNT LAVINIA Beddegedaramulla! Pamunuwa Homagama North ! ! ! ! Karagampitiya Nedimal!a Navinna Labugama Dehiwala ! ! Waga east ! ! Pitumpe Angampitiya ! Divulpitiya Godagama Godagama ! ! Labugama Wattegedara ! ! Meegoda ! ! Depanama ! Galagedara Maharagama ! ! Pallidora ! ! Moraketi!ya Watareka South ! Bellatara ! Malapalla ! Nikape ! Pannipitiya ! ! Rattanapitiya Godagama Gehenuwala ! Pannipitiya ! ! Egodawatta ! Mahadeniya PADUKKA ! Homagama ! Kavdana ! Arukwatta North Dambote ! Homagama South Migoda ! ! Kottawa ! ! Koshena ! ! ! ! Pahala Bope Godigamuwa Erawwela East ! ! ! ! ! Ovitigama Padukka Legend Owitigama Watarappala Boralesgamuwa South Kottawa Homagama Mawathgama ! ! Arukwatta South ! ! ! HOMAGAMA ! Makumbura GamageWatta Attidiya ! Homagama South ! ! ! Liyanwala Neelammahara Niyandagala ! Bope ! ! weragala ! Probable Flood water/ 6°50'0"N ! Galkissa Hirirpitiya Jayamathugama ! ! ! ! Udumulla Niwanthid!iya ! Mt. Lavinia Katuwawala! ! Pelanwatta Maduluwawa ! Mabulgoda ! RATMALANA ! Angamuwa Ihala Bope udagama Dampe ! ! ! Flood affected area Siddamulla ! ! Magammana Uduwana Werahera Kaliyammahara ! ! Kurugala ! ! ! Borupana Kandawala ! Pitipana South ! ! Poregedara Dulanmahara Brahmanagama ! Ratmalana ! Paligedara ! Mahingala ! ! ! Bokundara Gorakapitiya Sangarama ! ! ! Tumbowila Jaligoda ! Main Roads ! ! Udumulla Mattegoda Horagala East ! Makuluduwa ! ! Mampe North! ! Horagala Mahingala Nampamunuwa ! ! ! ! Diyagama Horagala West Kaldemulla ! ! Telawala Kirigam Pamunuwa Meeriyagala Rail Roads ! ! ! ! Wewala ! Kudamaduwa ! ! KE! SBEWA Kiriwattuduwa Angulana Mawittara ! ! ! Siyambalagoda Piliyandala ! Miriswatta ! Honnantara Streams ! Suwarapola ! Laksapatiya ! Kesbewa ! ! ! Kolamunna Kiriwattuduwa Rawatawatta Kuduwamulla ! Kesbewa ! ! ! Rilawala Malagala Molpe ! ! ! ! Hedigama Divisional Secretariat ! Kondurawa Lunawa ! Polgasowita Kahatuduwa 0 Moratuwa 0 ! ! Willorawatta ! ! ! 0 Deitara 0 ! 0 Berawawala 0 ! Wetara Batakettara ! Kahatuduwa 0 ! Halpita ! 0 Divisions ! ! 5 Ambalangoda 5 M! ORATUW! A ! 7 Undurugoda 7 Idama Indibedda Makandana Nivungama ! Yatawatura ! ! ! Kahawela ! Moranda ! ! Dampe ! ! Paluambalangoda ! Moraenda ! ! Undurugoda Village Names ! ! Yatawatura Weniwelkola ! Digarolla ! Polhena Madapata ! ! Dampe ! Batuwandara ! ! Jambureliya Palagama Koralawella ! Koralawella! Heraliyawala No Data ! ! Kahapola ! Scale : 1:100,000 Egoda Uyana ! Egoda Uyana ! Projection :UTM, Zone 44 N Datum : WGS84 380000 390000 400000 410000 Kilometers 0 2.5 5 10 Data Source: Analysed and Prepared by Survey Department, Sri Lanka Satellite Images provided by JAXA & METI, Japan.