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The unusual rainfall and floods in Cusco-Peru, during January, 2010 is described.
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SERVICIO NACIONAL DE METEOROLOGIA E HIDROLOGIASERVICIO NACIONAL DE METEOROLOGIA E HIDROLOGIA SENAMHISENAMHI
ABRIL, 2010ABRIL, 2010
PERÚ Ministeriodel Ambiente
Servicio Nacional de Meteorologíae Hidrología - SENAMHI
Analysis of extreme rainfall in Cusco in Summer 2010
Ing. Jorge Chira La [email protected]
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PERÚ Ministeriodel Ambiente
Servicio Nacional de Meteorologíae Hidrología - SENAMHI
Introduction Analysis of the rainfall episode Conclusions Recommendations
SUMMARY
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PERÚ Ministeriodel Ambiente
Servicio Nacional de Meteorologíae Hidrología - SENAMHI
An extreme precipitation event that affected almost all south highland of Peru is investigated. This event caused very strong socioeconomic impacts in the Cusco region.
The outstanding event of 22–24 January 2010 was connected to a strong south-esterly flow, probably caused by a intensity of South Atlantic convergence zone that persisted for several days and brought unusually large levels of moisture to the South Peru.
INTRODUCTION
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Satellite Pictures-TERRA-ModisSatellite Pictures-TERRA-ModisJanuary 21, 2010January 21, 2010
Source: INPE/CPTEC/BRASIL 4
Pictures Animation-GOES Satélite Pictures Animation-GOES Satélite January 21-25, 2010January 21-25, 2010
Source: INPE/CPTEC/BRASIL 5
Study AreaStudy Area
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The city of Cusco is located at the central and south-eastern zone of Peru,
Near Cusco is Vilcanota/Urubamba River valley. located about 10 miles north of Cusco Peru, and extends northwest through Pisac and Ollantaytambo cities.
Manned weather stations in Cusco. Just three automatic weather stations in this place.
Rainfall Distributión Rainfall Distributión Vilcanota River BasinVilcanota River Basin
Source: DCL/SENAMHI 7
High Basin Low Basin
Medium Basin
The rainfall incress between January 21-25 along the basin.
Historical Rainfall in JanuaryHistorical Rainfall in JanuaryPisac-CuscoPisac-Cusco
8The picture shows a high amount of rainfall in january, 2010
Strong flow of Vilcanota river in Pisac, Cusco with 327 m3/s top exceed its historical values.
Strong Flow of Vilcanota River of Strong Flow of Vilcanota River of CuscoCusco
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Source: Civil Defense Institute
Rainfall Impacts in South PeruRainfall Impacts in South Peru
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Source: Red Cross 11
Flood Impacts in South PeruFlood Impacts in South Peru
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Flood Impacts in Cusco cityFlood Impacts in Cusco city
Damage caused by floods in Damage caused by floods in CuscoCusco
Deads 9
Injured people 10
Homes affected 10.325
Schools afected 35
Medical center affected 06
People affected 21.393
Losses 4
Homes destroyed 4.828
Schools destroyed 9
Medical center destroyed 02
Churchs affected 15Public places affected 143(losas, parques, estadios y otros)
Losses (millions de US dolars) 250
Destroys railroads 6,15 km
Affected railroads 2,45 km
Asphalt roads destroyed 18 km Unpaved Road destroyed 11 km
Track roads destroyed 56 km
Track bridges destroyed 21
Track bridges affected 30
Fallen street light 477
Losen water intake 86
Farms destroyed (Ha) 16.281
Farms Affected (Ha) 10.950
Source: EL COMERCIO Newspaper (February 08, 2010) 13
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WARNING ISSUE
Climate Forecast of Rainfall
December 2009- February 2010
Extreme rainfall
This figure shows the CLIMATE OUTLOOK issued to media, decision makers and stakholders before event
During January 2010 heavy rainfall affected south Peru, increase of river and floods in Cusco, especially in Pisac city.
We observe incress activity of South Atlantic convergence zone that persisted for several days and brought unusually large levels of moisture to the South Peru.
The good cooperation between SENAMHI, Civil Defense Institute and Economy Ministry, lead to finance one automatic weather station loosen during this unusual floods.
At this moment there are a project supported by national government to deploy 12 automatic weather station in that place. This project was designed before this event.
CONCLUSIONSCONCLUSIONS
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To establish an Early Warning System is neccesary in Cusco region, to warning the population by natural disaster.
To strengthen the capacity of local civil defense teams and organizations is necesary.
To organize the population is requerid to improve the emergency management.
Disaster Risk Management Specialists is necesary in order to manage the emergency and prevent future risks.
RECOMMENDATIONSRECOMMENDATIONS
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