News Update Philippine 'Caloy' exiting RP; landslides damage roads in Luzon
Tropical Depression Caloy (international code name Chanthu) has intensified into a tropical storm as it continued to move away from Philippine territory Tuesday morning, state weather forecasters said.
Natural Disasters and Sustainable Development
Philippine Atmospheric Geophysical and Astronomical Services Administration (PAGASA) forecaster Elvie Enriquez said there was little chance Caloy will make a U-turn and return to the country.
"Papalayo na ito sa bansa. Kaya lang nasa loob pa ito ng Philippine area of responsibility. Hindi siya nagpapakita ng kilos na babalik (It is leaving Philippine territory. So far it is not showing any sign of making a U-turn and returning)," Enriquez said on dzBB radio Tuesday.
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Enriquez said Caloy is no longer likely to bring rains to the country, although Visayas and Mindanao can expect rains due to the inter-tropical convergence zone.
PAGASA's 5 a.m. advisory said Caloy was 420 km west northwest of Dagupan City as of 4 a.m., with maximum sustained winds of 65 kph near the center and gustiness of up to 80 kph.
Modern landslide prevention
It was moving northwest at 11 kph and is expected to be 610 km west northwest of Dagupan City or 580 km west of Laoag City Wednesday morning.
Some observations on the use of horizontal drains in the correction and prevention of landslides
On the other hand, PAGASA's 5 a.m. bulletin indicated the entire archipelago will experience mostly cloudy skies with scattered rain showers and thunderstorms.
Rock protection fence and slope protection mat : Multnomah Falls rock protection, Historic Columbia River Highway, Multnomah County, Oregon
But Caloy left several roads and bridges damaged and forced the evacuation of more than 200 families in Aurora province.
The National Disaster Coordinating Council said early Tuesday at least 208 families had been evacuated in Dingalan and 27 in Baler town in Aurora.
Applying a GIS slope-stability model to site-specific landslide prevention in Honduras. (Research).(geographic information system): An article from: Journal of Soil and Water Conservation
Major landslides affected Gabaldon-Dingalan Road Km 174+343 to Km 182+000 and Km 177+800 to Km 177+810 in Tanauan village in Dingalan, but the road remained passable. Repairs may not be completed until July 22.
In Nueva Ecija, the Tabang-Gabaldon Road was covered with sand but still passable.
Fao Watershed Management Field Manual: Landslide Prevention Measures (Fao Conservation Guide 13/4)
In Ifugao, the Hungduan-Tinoc-Benguet Road was closed due to landslides.
In Benguet, the Acop-Kapangan-Kibungan-Bakun Road was temporarily open for light vehicles.
A unified approach to probabilistic risk assessments for earthquakes, floods, landslides, and volcanoes: Proceedings of a multidisciplinary workshop held ... November 16-17, 1999 (Open-file report)
The Benguet-Nueva Vizcaya Road was undergoing clearing operations. — LBG/RSJ,
Rockfall hazard rating system: Participant's manual
