: Mindanao - Intertropical Convergence Zone (ITCZ) (as of 06 July 2015)

WHAT IS AN INTERTROPICAL CONVERGENCE ZONE? INTERTROPICAL CONVERGENCE ZONE’S EFFECTS ON MINDANAO

The Intertropical Convergence Zone, or ITCZ, is the region that circles the Earth, near the The Autonomous Region in Muslim Mindanao equator, where the trade winds of the Northern and Southern Hemispheres come together. The (ARMM) has been experiencing moderate to intense sun and warm water of the equator heats the air in the ITCZ, raising its humidity and heavy rains with winds blowing light to moderate making it buoyant. Aided by the convergence of the trade winds, the buoyant air rises. As the air since 4:00 AM of June 24, 2015 due to 1 Nabilan 935 AH26 Intertropical Convergence Zone (ITCZ). This has rises it expands and cools, releasing the accumulated moisture in an almost perpetualKusiong series of Tapian 935 affected a total 19,874 families/99,319 individuals thunderstorms.* in 18 municipalities from 3 provinces due to Manila Datu Montawal 935 935 flashfloods, river floods and strong wind incidents.

Maguindanao 935

Pikit Northeast Trade Winds As of 3 July 2015, the flooding incident has

Datu Piang affected 19,736 families/ 98,680 individuals in 79 Linamunan Upi Brgy. Katibpuan barangays. In addition, the DepEd-ARMM

Talitay reported 32 public schools affected with 9,970 Creating Shariff Saydona 935 Mustapha student and 200 teachers. While, Department of Guindolungan Liab

clouds Libutan Daladap Agriculture and Fisheries (DAF)-ARMM reported Dabenayan Pimbalakan Tukanalipao that 93lead5 Datu Saudi-Ampatuan Liguasan crop damage of 859 hectares of corn and rice Marsh Dasikil to Tuka fields or amounting to PhP 6,626,420.00** The 2 winds meet near the Equator Mixed air is forced to rise perpetual Affected Barangays storms 935 Ampatuan Bodies of Water

Lambayong Land

Datu Abdullah Sangki

South Upi

935

Kalamangog Basak Esperanza Southeast Trade Winds lanasan

Current Global ITCZ Seasonal shifts in the location of the ITCZ drastically affects rainfall in many equatorial nations, resulting in the wet and dry seasons of the tropics rather than the cold and warm Strong Winds in and Tawi-Tawi seasons of higher Province: latitudes. Longer term Three (3) municipalities from Basilan Province changes in the ITCZ can namely , AND HADJI result in severe droughts MUHTAMAD have experienced strong winds on or flooding in nearby the morning of July 2, 2015 that resulted to 178 areas. * houses were damaged (138 partially damaged and 40 totally damaged) which were mostly made of light material.**

Philippines As of 28 June 2015 from PAGASA satellite imagery Region XII: Heavy ITCZ agricultural and infrastructure damage

Approximately PhP129,668,317 cost of damage to agriculture and PhP176,135,708 cost of damage to infrastructure were reported.**

The boundaries and names shown and the designations used on this map do not imply official Sources: AFP, Panahon.TV, Wikipedia, NASA*, PAGASA, OSM, DND-OCD** Creation Date: 09 July 2015 Feedback: [email protected] www.reliefweb.int philippines.humanitarianresponse.info endorsement or acceptance by the United Nations.