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Jakarta, CNN Indonesia –
Weather anomalies The girl currently supervised in development at Samudra pasifik Ecuador and is expected to reach a moderate intensity until the end of 2020, so it is necessary to be aware of the impact on the territory of Indonesia.
La Niña is known to have an effect of increasing rainfall in the region it passes through, in contrast to El Niño which brings drought.
“The impact of La Niña is not uniform in Indonesia. In October-November, the increase in monthly rainfall due to La Niña can occur in almost all regions of Indonesia except Sumatra,” said the Deputy of Climatology of the Agency of Meteorology, Climatology and Geophysics (BMKG) Herizal in an accepted statement. in Jakarta on Saturday.
Historical records show that La Niña may cause the cumulative amount of monthly rainfall in Indonesia to increase to 40 percent above normal.
It is estimated that from December to February 2021, increased rainfall due to La Niña may occur in East Kalimantan, Sulawesi, Maluku-North Maluku and Papua.
In October, several seasonal areas in Indonesia are expected to enter the rainy season, including the east coast of Aceh, parts of Riau, Jambi, South Sumatra, Bangka Island, Lampung, Banten, parts of West Java, parts from Central Java, parts of East Java, some West Kalimantan, part of Central Kalimantan, South Kalimantan, part of East Kalimantan, part of North Kalimantan, also a small part of Sulawesi, North Maluku and a small part of West Nusa Tenggara.
Increased rainfall in line with the start of the rainy season accompanied by an increase in accumulated rainfall due to La Niña has the potential to trigger hydrometeorological disasters such as floods and landslides.
BMKG calls on stakeholders to more optimally carry out integrated water management from upstream to downstream, for example, by preparing the capacity of rivers and canals to anticipate excess water discharge.
The public is also encouraged to continue to update the development of BMKG information using the infoBMKG social media channel or by contacting the nearest BMKG office directly.
Anomalous La Niña
Until the end of September 2020, monitoring of global climate anomalies in the Equatorial Pacific Ocean showed that the La Niña climate anomaly is developing.
The ENSO (El Niño-Southern Oscillation) index shows that the sea surface temperature in the central and eastern Pacific region has been cold for the last six decades with anomalous values that have exceeded minus 0.5 degrees Celsius, which is the threshold for the La Niña category.
The development of the anomalous value of the sea surface temperature in the region is minus 0.6 degrees Celsius in August and minus 0.9 degrees Celsius in September 2020, respectively.
BMKG and other climate service centers such as NOAA (United States), BoM (Australia), JMA (Japan) predict that La Niña will begin to decline in January-February and end around March-April 2021.
(Antara / vws)
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