6 August 2021 PRELIMINARY SATELLITE- DERIVED FLOOD ASSESSMENT
Bocas Del Toro & Coclé Provinces, Panama
Status: Decreased water extent in Bocas Del Toro & Coclé Provinces
Further action(s): closed monitoring PANAMA AREA OF INTEREST (AOI)
6 August 2021 PROVINCE
AOI 2
AOI 1 N FLOODS OVER PANAMA 80 km
AOI 2
COSTA RICA
Satellite detected water [4 August 2021]
AOI 1 Decreased water extent
Legend Province boundary International boundary
Area of interest
Cloud mask COLOMBIA
Reference water Satellite detected water As of 26 July 2021 [Joint ABI/VIIRS] Satellite detected water As of 4 August 2021 [Joint ABI/VIIRS]
Background: ESRI Basemap 3 AOI 1: COCLÉ PROVINCE Pajonal La Pintada
Penonome
COCLÉ PROVINCE
Rio Grande
No significant flood observed Las Guabas as of 31 July 2021 Cerrezuela
Nata
Aguadulce
N 6 km El Roble Sentinel-2 image acquired on 31 July 2021 Image Center : 80°32'15.469"W 8°24'20.529"N Image center: AOI 1-1: EL ROBLE, SANTA MARÍA AND AGUADULCE DISTRICT, 80°38'15.806"W COCLÉ PROVINCE 8°8'3.862"N Decreased water in agricultural area observed
BEFORE AFTER
El Roble
Inundated agricultural area Decreased water extent
Santa Maria river Santa Maria river
Standing water in agricultural area Inundated agricultural area Santa Maria
N N 1 km
Sentinel-2 / 26 July 2021 Sentinel-2 / 31 July 2021 5 Image center: AOI 1-2: AGUADULCE AND NATA, AGUADULCE DISTRICT, 80°29'4.595"W COCLÉ PROVINCE 8°15'4.27"N Decreased water extent observed in aquaculture ponds
BEFORE AFTERAFTER Nata
Cloud obstruction
Aguadulce Aguadulce
Decreased water Inundated aquaculture ponds identified as of 26 July 2021
N N 1.5 km
Sentinel-2 / 26 July 2021 Sentinel-2 / 31 July 2021 6 Image center: AOI 1-3: RIO GRAND, LAS GUABAS AND CERREZUELA, NATÁ 80°28'3.519"W AND PENONOMÉ DISTRICT, COCLÉ PROVINCE 8°23'34.122"N Decreased water observed
BEFORE AFTER Rio Grande
Overflow evidence Decreased water along the river Decreased water Inundated agricultural area
Colcé del Sur river Colcé del Sur river Las Guabas
Cerrezuela
Rio Grande river Rio Grande river Inundated agricultural area Decreased water
Nata N N 1.5 km Sentinel-2 / 26 July 2021 Sentinel-2 / 31 July 2021 7 Image center: AOI 1-4: PENONOME, PENONOMÉ DISTRICT, NATÁ 80°21'26.053"W AND PENONOMÉ DISTRICT, COCLÉ PROVINCE 8°30'56.987"N No floods observed
BEFORE AFTER
Penonome
N N 1 km
Sentinel-2 / 26 July 2021 Sentinel-2 / 31 July 2021 8 Image center: AOI 1-5: LA PINTADA, LA PINTADA DISTRICT, 80°26'46.977"W COCLÉ PROVINCE 8°35'36.015"N No floods observed
BEFORE AFTER
La Pintada La Pintada
Colcé del Sur river Colcé del Sur river
N N 800 800 m m
Sentinel-2 / 21 July 2021 Sentinel-2 / 31 July 2021 9 Image center: AOI 1-6: PAJONAL , PENONOMÉ DISTRICT, 80°15'20.696"W COCLÉ PROVINCE 8°35'36.079"N No floods observed
BEFORE AFTER
Cloud shadow
Pajonal Pajonal
Zarati river Zarati river
N N 1 1 km km
Sentinel-2 / 21 July 2021 Sentinel-2 / 31 July 2021 10 Image center: AOI 2-1: SAN SAN, CHANGUINOLA DISTRICT, 82°33'23.804"W BOCAS DEL BOCAS DEL TORO PROVINCE 9°27'32.295"N TORO
Increased water observed along the river
BEFORE AFTER
San San river San San river
San San San San
Increased water extent
Inundated area
Sentinel-1 / 13 March 2021 Sentinel-1 / 31 July 2021 11 Image center: AOI 2-2: CHANGUINOLA DISTRICT, 82°38'34.953"W BOCAS DEL BOCAS DEL TORO PROVINCE 9°30'44.624"N TORO
Decreased water in agricultural area observed
BEFORE AFTER
Inundated agricultural area COSTA RICA COSTA RICA Decreased water
La Tablas California
Finca 51 La Mesa
Guabito
San San Inundated agricultural area Decreased water PANAMA PANAMA N
Sentinel-1 / 25 July 2021 Sentinel-1 / 30 July 2021 12 SUMMARY OF FINDINGS
• Decreased water extent observed in El Roble, Santa María and Aguadulce Districts, Coclé Province as of 31 July 2021;
• Decreased water extent in aquaculture ponds observed east of Aguadulce city, Coclé Province as of 31 July 2021;
• Decreased water extent observed in the vicinity of Rio Grande, Las Guabasa nd Cerrezuela, Natá and Penonomé District, Coclé Province as of 31 July 2021;
• No floods observed in the vicinity of Penonome, La Pintada & Pajonal town, Coclé Province as of 31 July 2021;
• Inundated area observed along San San River, Changuinola District, Bocas Del Toro Province as of 31 July 2021;
• No floods observed, Changuinola District, Bocas Del Toro Province as of 30 July 2021;
13 COPYRIGHTS AND SOURCES
Data sources: (3) Ancillary data (1) Satellite Image (Post-event) Administrative boundaries: OCHA, HDX Sentinel-1 / 30 July 2021 at 11:14 UTC Populated places: OpenStreetMap Sentinel-2 / 31 July 2021 at 15:55 UTC Copyright: Contains modified Copernicus Sentinel Data [2021] Analysis: UNITAR-UNOSAT Source: ESA Production: UNITAR-UNOSAT
GOES-16/ABI, Suomi-NPP and NOAA-20/VIIRS / 26 July 2021 Copyright: NOAA/Suomi NPP Source: NOAA and GEOS Rebroadcast (GRB)
(2) Satellite Image (Pre-event)
Sentinel-1 / 25 July 2021 at 11:14 UTC Sentinel-2 / 26 July 2021 at 15:55 UTC Copyright: Contains modified Copernicus Sentinel Data [2021] Source: ESA
14 @UNOSAT
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