Tempo Interactive 28 Nov 07;
TEMPO Interactive, Jakarta: Jakartans are asked to be on the alert as high waves are still a threat for the capital city’s northern coast.
The Indonesian Naval Hydrology and Oceanography Agency has estimated that high waves will reach a peak this December 8.
“These could be worse than the current ones,” said Major Saroso, Head of the Oceanography Section at the Hydrology and Oceanography Agency, yesterday (27/11).
According to Saroso, on December 8, the high waves will reach their highest point of the whole year.
The reason is the date coincides with the dark of the moon, when as usual, in the cycle of Qomariyah moon system, tides will rise.
In addition, the high tides will culminate because in early December, it is predicated that Jakarta will have rain.
Strong winds from south of the equator at speeds of 12 knots will also pull sea water towards the land.
“This will enlarge the water flow,” said Saroso.
During peak of high tides, according to Suroso, the height of waves may reach 2.2 meters.
High tides reaching 1.2 meters have hit the Jakarta coast since last week.
The high tides breached the sea water dike in Muara Baru, Penjaringan, North Jakarta, on Monday evening (26/11).
In a short period of time, sea water flooded almost the entire north and west parts of Jakarta.
So that sea water flooding does not happen again, next year Jakarta Provincial Government will build a dike of one kilometer long in Muara Baru.
“We propose a budget of Rp15 billion,” said Public Works Service Head, Wisnu Subagyo.
