18 June 2021 PRELIMINARY SATELLITE- DERIVED FLOOD ASSESSMENT Along the Essequibo and Demerara rivers in Right Bank Essequibo Sub-Region, Region 10- Upper Demerara-Berbice, Guyana Status: Inundated structures near Essequibo river and along Demerara rivers observed Further action(s): continue monitoring GUYANA AREA OF INTEREST (AOI) 18 June 2021 REGION FLOODS OVER GUYANA N 120 km Region 1 Region 2 Region 3 Region 4 Region 7 Region 5 AOI Region 10 Region 8 Legend Satellite detected water Region boundary as of 16 and17 June 2021 International boundary River Region 6 Satellite detected water as of 16 and 17 June 2021 [Joint ABI/VIIRS] Region 9 Cloud mask Area of interest Background: ESRI Basemap 3 N Right Bank Essequibo Sub-Region, Region 10- Upper Demerara-Berbice 3 km AOI 2 AOI Torani/Bul Linden city letwood Region 10 AOI 1 Right Bank Essequibo Rockstone town AOI 3 Worldview-2 / 15 Jun 2021 Image center: AOI 1 Right Bank Essequibo Sub-Region, 58°32'21.815"W Region 10- Upper Demerara-Berbice 5°59'28.371"N Inundated structures near Essequibo river observed BEFORE AFTER Inundated structures N 60 m Worldview-2 / 16 Dec 2017 Worldview-2 / 15 Jun 2021 5 AOI 2 Image center: AOI 2-1 Right Bank Essequibo Sub-Region, 58°17'35.647"W Region 10- Upper Demerara-Berbice 6°1'32.678"N No floods observed BEFORE AFTER N 150 m Worldview-2 / 26 Aug 2020 Worldview-2 / 15 Jun 2021 6 AOI 2 Image center: AOI 2-2 Linden city, Right Bank Essequibo Sub-Region, 58°18'57.245"W Region 10- Upper Demerara-Berbice 6°0'59.099"N No floods observed BEFORE AFTER Linden city Linden city N 100 m Worldview-2 / 26 Aug 2020 Worldview-2 / 15 Jun 2021 7 AOI 2 Image center: AOI 2-3 Right Bank Essequibo Sub-Region, 58°17'19.747"W Region 10- Upper Demerara-Berbice 6°0'45.915"N Water Increase and inundated structures observed BEFORE AFTER Water increase Inundated structures N 100 m Worldview-2 / 9 Feb 2015 Worldview-2 / 15 Jun 2021 8 AOI 3 Image center: AOI 3-2 Linden town, Right Bank Essequibo Sub-Region, 58°18'45.685"W Region 10- Upper Demerara-Berbice 5°56'24.166"N Water Increase and potentially structures inundated observed BEFORE AFTER Water increase Demerara river Demerara river Potentially inundated structures N 50 m Worldview-2 / 9 Feb 2015 Worldview-2 / 15 Jun 2021 9 AOI 3 Image center: AOI 3-1 Right Bank Essequibo Sub-Region, 58°18'44.192"W Region 10- Upper Demerara-Berbice 5°54'20.881"N Water Increase and inundated structures observed BEFORE AFTER Inundated structures Demerara river Demerara river Overflow evidence N 50 m Worldview-2 / 9 Feb 2015 Worldview-2 / 15 Jun 2021 10 SUMMARY OF FINDINGS • Inundated structures near Essequibo river, AOI 1, near Rockstone town in Right Bank Essequibo Sub-Region, Region 10- Upper Demerara-Berbice, as of 15th of June 2021; • No floods in Linden city, AOI 2-1, Right Bank Essequibo Sub-Region, Region 10- Upper Demerara-Berbice, as of 15th of June 2021; • No floods along Mederara river near Linden city, AOI 2-2, Right Bank Essequibo Sub-Region, Region 10- Upper Demerara-Berbice, as of 15th of June 2021; • Inundated structures due to increased water level of permanent water at AOI 2-3 near Linden city, Right Bank Essequibo Sub-Region, Region 10- Upper Demerara-Berbice, as of 15th of June 2021; • Water increase and inundated structures along the Mederara river, AOI 3 Right Bank Essequibo Sub-Region, Region 10- Upper Demerara-Berbice, as of 15th of June 2021; 11 COPYRIGHTS AND SOURCES Data sources: (3) Ancillary data (1) Satellite Image (Post-event) Administrative boundaries: Guyana Lands and Surveys Commission, Worldview-2 / 15 Jun 2021 HDX Copyright: 2015, 2020, and 2021 Digital Globe Populated places: OpenStreetMap Source: USGS Waterways: OpenStreetMap Analysis: UNITAR-UNOSAT (2) Satellite Image (Pre-event) Production: UNITAR-UNOSAT WorldView-2 / 19 Apr 2021, 26 Aug 2020, and 9 Feb 2015 Copyright: 2015, 2020, and 2021 Digital Globe Source: USGS Worldview-2 / 16 Dec 2017 Copyright: 2017 Digital Globe Source: Maxar, ESRI Basemap 12 @UNOSAT @UNITAR.unosat UNOSAT, United Nations Institute for Training T +41 022 917 4720 and Research (UNITAR) E [email protected] 7 bis, Avenue de la Paix, CH-1202 Geneva 2, www.unosat.org Switzerland.