This is a webmap showing analysis results related to the tropical cyclone Yasa-. Yasa - 20" formed on December 12, 2020, in the south of the Pacific Ocean between Vanuatu and Fiji Island and is expected to cause humanitarian impact on Fiji https://unitar.org/unosat/node/44/3212 https://www.gdacs.org/contentdata/maps/unosat/TC/1000752/UNOSAT_Live_Map_TC20201215FJI.jpg guid_1 Thu, 17 Dec 2020 11:17:46 Tropical Storm "YASA-20" formed on December 12, 2020, in the south of the Pacific Ocean between Vanuatu and Fiji Islands. YASA-20 made landfall in Vanua Levu Island (Fiji) on December 17, at 18:00 local time, as a category 5 cyclone. According to GDACS, Tropical Cyclone YASA-20 have a medium humanitarian impact based on the maximum sustained wind speed, exposed population, and vulnerability.Based on data of the forecasted tropical cyclone path of wind speeds zones from Joint Research Centre (issued on December 12, 2020, 12:00 local time), and population data from the WorldPop 2020, UNITAR-UNOSAT has prepared a population exposure analysis for Fiji. About 15% of the population lives within the wind speed zone that exceeds 120 km/h, while 68% lives within the wind speed zone of 60-120 km/h and 17% lives within the wind speed zone below 60 km/h. https://unitar.org/unosat/node/44/3213 https://www.gdacs.org/contentdata/maps/unosat/TC/1000752/FIJI_YASA_Population_Exposure_Analysis_Report_Fiji_20201218.jpg guid_2 Fri, 18 Dec 2020 11:26:48 This map illustrates satellite-detected surface waters in Bua Tikina, Bua Province, Northern Division of Fiji as observed from an RCM-2 image acquired on 19 October 2020 at 05:39 local time. Within the analyzed area of about 40 km2, a total of about 1 km2 of land appear to be flooded. Based on Worldpop population data and the detected surface waters, about 30 people are potentially exposed or living close to flooded areas. This is a preliminary analysis and has not yet been validated in the field. Please send ground feedback to UNITAR-UNOSAT. Important Note: Flood analysis from radar images may underestimate the presence of standing waters in built-up areas and densely vegetated areas due to backscattering properties of the radar signal. https://unitar.org/unosat/node/44/3215 https://www.gdacs.org/contentdata/maps/unosat/TC/1000752/UNOSAT_A3_Natural_Landscape_TC20201215FJI_Ndalomo_Bua_Fiji_191122020.jpg guid_3 Mon, 21 Dec 2020 09:54:30 This map illustrates satellite-detected surface waters in Labasa Tikina, Macuata Province, Northern Division of Fiji as observed from a Sentinel-1 image acquired on 19 October 2020 at 05:32 local time. Within the analyzed area of about 200 km2, a total of about 5 km2 of lands appear to be flooded. Based on Worldpop population data and the detected surface waters, about 200 people are potentially exposed or living close to flooded areas. This is a preliminary analysis and has not yet been validated in the field. Please send ground feedback to UNITAR-UNOSAT. Important Note: Flood analysis from radar images may underestimate the presence of standing waters in built-up areas and densely vegetated areas due to backscattering properties of the radar signal. https://unitar.org/unosat/node/44/3214 https://www.gdacs.org/contentdata/maps/unosat/TC/1000752/UNOSAT_A3_Natural_Landscape_TC20201215FJI_Lebasa_Macuata_Fiji_191122020.jpg guid_4 Mon, 21 Dec 2020 09:52:04 This map illustrates potentially damaged structures and buildings in Vunua Levu Island, Bua Tikina, Bua Province, Northern Division of Fiji as detected by satellite image acquired after landfall of the Tropical Cyclone YASA on 17 December 2020. UNITAR-UNOSAT analysis used a Pleiades image acquired on 19 December 2020 as post event image. Within the analysis extent about 230 Km2, UNITAR-UNOSAT identified in the cloud free zones 195 potentially damaged structures. Taking into account the pre-building footprints provided by OpenStreetMap, this represents about 15% of the total number of structures within the analyzed cloud free areas. This is a preliminary analysis and has not yet been validated in the field. Please send ground feedback to UNITAR-UNOSAT. https://unitar.org/unosat/node/44/3216 https://www.gdacs.org/contentdata/maps/unosat/TC/1000752/UNOSAT_A3_Natural_Landscape_TC20201215FJI_Bua_Fiji_191122020.jpg guid_5 Mon, 21 Dec 2020 12:47:44 Status: Evidence of damaged buildings, infrastructure and land detectedFurther actions(s): Continue monitoringDate of assessment validity: 21 December 2020Widespread severe damage observed in Bua province, Northern division, Vanua Levu Islands as of 19 December 2020 (AOI1),No major visible structural damage could be observed in Ba and Rewa provinces, Western division, Viti Levu as of 20 December 2020 (AOI2 & 3). https://unitar.org/unosat/node/44/3217 https://www.gdacs.org/contentdata/maps/unosat/TC/1000752/UNOSAT_Preliminary_Assessment_Report_21DEC2020_TC20201215FJI.jpg guid_6 Mon, 21 Dec 2020 18:54:25 This map illustrates potentially damaged structures and buildings in Oneata Island, Lau Province, Eastern Division of Fiji as detected by satellite image acquired after landfall of the Tropical Cyclone YASA. UNITAR-UNOSAT analysis used a World View 1 image acquired on 19 December 2020 as a post-event image. Within the island extent, UNITAR-UNOSAT identified in the cloud-free zones 14 potentially damaged structures. Taking into account the pre-building footprints provided by OpenStreetMap, this represents about 20% of the total number of structures within the analyzed cloud-free areas. This is a preliminary analysis and has not yet been validated in the field. Please send ground feedback to UNITAR-UNOSAT. https://unitar.org/unosat/node/44/3218 https://www.gdacs.org/contentdata/maps/unosat/TC/1000752/UNOSAT_A3_Natural_Landscape_TC20201215FJI_OneataIsland_LauProvince_Fiji_191122020.jpg guid_7 Tue, 22 Dec 2020 17:34:36 Status: No widespread damage detectedFurther actions: Completed monitoringDate of assessment validity: 24 December 2020No major visible structural damage could be observed in Ovalau Island, Lomaiviti Province, Eastern Division, Fiji as of 22 December 2020 https://unitar.org/unosat/node/44/3219 https://www.gdacs.org/contentdata/maps/unosat/TC/1000752/UNOSAT_Preliminary_Assessment_Report_TC20201215FJI_241202020.jpg guid_8 Mon, 28 Dec 2020 16:33:46 This map illustrates potentially damaged structures and buildings in Nairai island, Lomaiviti province, Eastern division of Fiji as detected by satellite image acquired after landfall of the Tropical Cyclone YASA.UNITAR-UNOSAT analysis used WorldView- 2 image acquired on 24 December 2020 as a post-event image. Within the island extent, UNITAR-UNOSAT identified in the cloud-free zones 4 damaged structures and 8 potentially damaged structures. Taking into account the pre-building footprints provided by OpenStreetMap, this represents about 4% of the total number of structures within the analyzed cloud-free areas.This is a preliminary analysis and has not yet been validated in the field. Please send ground feedback to UNITAR-UNOSAT. https://unitar.org/unosat/node/44/3220 https://www.gdacs.org/contentdata/maps/unosat/TC/1000752/UNOSAT_A3_Natural_Protrait_TC20201215FJI_NairaiIsland_Lomaiviti_Fiji_24122020.jpg guid_9 Mon, 28 Dec 2020 17:04:12 This map illustrates potentially damaged structures and buildings in Kia Island, Macuata province, Northern division of Fiji as detected by satellite image acquired after landfall of the Tropical Cyclone YASA.UNITAR-UNOSAT analysis used WorldView-1 image acquired on 27 December 2020 as a post-event image. Within the island extent, UNITAR-UNOSAT identified in the cloud-free zones 6 damaged structures and 10 potentially damaged structures. Taking into account the pre-building footprints provided by OpenStreetMap, this represents about 17% of the total number of structures within the analyzed cloud-free areas.This is a preliminary analysis and has not yet been validated in the field. Please send ground feedback to UNITAR-UNOSAT. https://unitar.org/unosat/node/44/3221 https://www.gdacs.org/contentdata/maps/unosat/TC/1000752/UNOSAT_A3_Natural_Protrait_TC20201215FJI_KiaIsland_Macuata_Fiji_27122020.jpg guid_10 Mon, 28 Dec 2020 17:10:58 This map illustrates potentially damaged structures and buildings in Yaqaga Island, Bua province, Northern division of Fiji as detected by satellite images acquired after landfall of the Tropical Cyclone YASA. UNITAR-UNOSAT analysis used a WorldView-2 image acquired on 30 December 2020 as a post-event image. Within the island extent, UNITAR-UNOSAT identified 30 damaged structures and 13 potentially damaged structures. Taking into account the pre-building footprints provided by OpenStreetMap, this represents about 80% of the total number of structures. This is a preliminary analysis and has not yet been validated in the field. Please send ground feedback to UNITAR-UNOSAT. https://unitar.org/unosat/node/44/3222 https://www.gdacs.org/contentdata/maps/unosat/TC/1000752/UNOSAT_A3_Natural_Landscape_TC20201215FJI_YaqagaIsland.jpg guid_11 Fri, 08 Jan 2021 14:35:42 This map illustrates potentially damaged structures and buildings in Tavea Island, Bua province, Northern division of Fiji as detected by satellite images acquired after landfall of the Tropical Cyclone YASA. UNITAR-UNOSAT analysis used a WorldView-2 image acquired on 30 December 2020 as a post-event image. Within the island extent, UNITAR-UNOSAT identified 13 damaged structures and 10 potentially damaged structures. Taking into account the pre-building footprints provided by OpenStreetMap, this represents about 80% of the total number of structures. This is a preliminary analysis and has not yet been validated in the field. Please send ground feedback to UNITAR-UNOSAT. https://unitar.org/unosat/node/44/3224 https://www.gdacs.org/contentdata/maps/unosat/TC/1000752/UNOSAT_A3_Natural_Landscape_TC20201215FJI_TaveaIsland.jpg guid_12 Fri, 08 Jan 2021 17:09:59 This map illustrates potentially damaged structures and buildings in Galoa Island, Bua province, Northern division of Fiji as detected by satellite images acquired after landfall of the Tropical Cyclone YASA. UNITAR-UNOSAT analysis used a WorldView-2 image acquired on 30 December 2020 as a post-event image. Within the island extent, UNITAR-UNOSAT identified 56 damaged structures and 17 potentially damaged structures. Taking into account the pre-building footprints provided by OpenStreetMap, this represents about 80% of the total number of structures. This is a preliminary analysis and has not yet been validated in the field. Please send ground feedback to UNITAR-UNOSAT. https://unitar.org/unosat/node/44/3223 https://www.gdacs.org/contentdata/maps/unosat/TC/1000752/UNOSAT_A3_Natural_Landscape_TC20201215FJI_GaloaIsland.jpg guid_13 Fri, 08 Jan 2021 17:07:31 This map illustrates potentially damaged structures and buildings in Lakemba Island, Lau province, Eastern division of Fiji as detected by satellite images acquired after landfall of the Tropical Cyclone YASA. UNITAR-UNOSAT analysis used a WorldView-1 image acquired on 9 January 2021 as a post-event image. Within the island extent, UNITAR-UNOSAT identified 75 damaged structures and 71 potentially damaged structures. Taking into account the pre-building footprints provided by OpenStreetMap, this represents about 20% of the total number of structures.This is a preliminary analysis and has not yet been validated in the field. Please send ground feedback to UNITAR-UNOSAT. https://unitar.org/unosat/node/44/3225 https://www.gdacs.org/contentdata/maps/unosat/TC/1000752/UNOSAT_A3_Natural_Landscape_TC20201215FJI_LakembaIsland.jpg guid_14 Mon, 11 Jan 2021 18:10:32 This map illustrates potentially damaged structures and buildings in Vuya tikina, Bua province, Northern division of Fiji as detected by satellite images acquired after landfall of the Tropical Cyclone YASA. UNITAR-UNOSAT analysis used a WorldView-1 image acquired on 8 January 2021 as a post-event image. Within the island extent, UNITAR-UNOSAT identified 15 damaged structures and 18 potentially damaged structures. Taking into account the pre-building footprints provided by OpenStreetMap, this represents about 20% of the total number of structures. This is a preliminary analysis and has not yet been validated in the field. Please send ground feedback to UNITAR-UNOSAT. https://unitar.org/unosat/node/44/3226 https://www.gdacs.org/contentdata/maps/unosat/TC/1000752/UNOSAT_A3_Natural_Landscape_TC20201215FJI_VuyaTikina.jpg guid_15 Mon, 11 Jan 2021 18:13:54 This map illustrates potentially damaged structures and buildings in Vuya tikina, Bua province, Northern division of Fiji as detected by satellite images acquired after landfall of the Tropical Cyclone YASA. UNITAR-UNOSAT analysis used a WorldView-1 image acquired on 31 December 2020 as a post-event image. Within the island extent, UNITAR-UNOSAT identified 33 damaged structures and 46 potentially damaged structures. Taking into account the pre-building footprints provided by OpenStreetMap, this represents about 20% of the total number of structures. This is a preliminary analysis and has not yet been validated in the field. Please send ground feedback to UNITAR-UNOSAT. https://unitar.org/unosat/node/44/3227 https://www.gdacs.org/contentdata/maps/unosat/TC/1000752/UNOSAT_A3_Natural_Protrait_TC20201215FJI_VuyaTikina_12012021.jpg guid_16 Tue, 12 Jan 2021 17:30:23