00:01Mr. Sherman, thank you. May tanong lang ako. This data is taken from FCOS, MMDA.
00:08Noong nakaraang ulan, nakaraang baha, last July 19 to 25, the total rainfall as recorded in the FCOS is 665.5 millimeters,
00:24which is equivalent to 28% of the annual average rainfall in Metro Manila.
00:31Ibig sabihin, sa period ng isang linggo, one-third of the annual average rainfall in Metro Manila binuhos lamang ng isang linggo na ulan.
00:42So, gusto ko lang kasing ipakita rito na lagi kasing nating sinisisi ang flood control.
00:49Hindi natin din tinitingnan kung gano'ng ang bulyom na ipasok o pumasok doon sa mga flood control systems ng MMDA at DPWH.
01:01Now, 28% or almost one-third of the annual average rainfall binuhos lang ng isang linggo.
01:09Now, what is according to your scale of rainfall,
01:16yung, I don't think, I know DPWH is knowledgeable about this,
01:22yung 600 plus rainfall is equivalent to 100-year return period. Am I right?
01:31Sino makasagot? On record?
01:32Yes, Mr. Chair. Based on the rainfall data that we gathered also from Pag-ASA,
01:44we plotted it against the graph or the rainfall intensity duration frequency curve of that type 1 increasing,
01:52that series of rainfall, and that it exceeded the 100-year return period plot.
01:56100-year return period. Now, my question is,
02:00gaano kalaki ang design ng ating mga drainage system in Metro Manila, internal or main drain?
02:08Ilang return period yun?
02:10Yes, Mr. Chair, since 2005, the DPWH has upgraded its design guidelines and criteria
02:20to account for the climate change, but we could only account for 15 years.
02:27So, previously po, before the climate change events, it's just designed for 10-year return period,
02:33but we upgraded it to 15-year return period plan.
02:36You just can't imagine, Mr. Chairman,
02:38ang buhos ng ulan is 100-year return period,
02:41but the capacities of our drainage system is only 15-year return period.
02:46So, saan papunta ang mga tubig na yan, kundi mag-overflow talaga?
02:52That's one of the problems.
02:53That is why there is a master plan for Metro Manila,
02:56and the recommendation is to upgrade all these drainage systems sa Metro Manila.
03:02Ito ang dahilan kung bakit lagi tayo nagbabaha,
03:05dahil yung mga capacities ng ating mga arteries,
03:08or yung ating mga drains, lateral man, main drains mo natin,
03:12going towards creeks and other outfalls,
03:16and going towards pumping stations,
03:19ay hindi talaga kayang dalhin.
03:22So, because we are now in the 100-year return period,
03:25ibig sabihin ang design,
03:26this is measured in sa design nila kasi return period ang yung basis nila.
03:31So, yun yun ang dahilan, Mr. Chairman.
03:35Okay, we can return to Pagasa, please.
03:37Please wrap up.
03:40Okay, thank you, Mr. Chair.
03:41Just for the record, yung normal natin sa isang taon for the Science Garden is 516 millimeters.
03:53Yun po yung amount, amount.
03:56And also for the record, yung data that we use is from Pagasa, DOST Pagasa po.
04:03It's not from MDA.
04:06Sorry, can you state the data again that you mentioned?
04:08The typical rainfall is what?
04:12Science Garden.
04:16And kindly make a comparison to what has been,
04:19what was the output for July?
04:225164 for July.
04:25That's the normal.
04:26Normal, yun.
04:27The output mo for last month is what?
04:29I have here record of July.
04:42July rainfall is 956 millimeter.
04:46Do you confirm this number, please?
04:50I can confirm lang.
04:50Galing ito kasi sa MMDA, of course.
04:53I think it's for one week, sir, Congressman.
04:55One week lang yun?
04:57Hindi.
04:58Ang one week nila is 600 plus.
05:01Yung kanilang one month is 900 plus.
05:03Meaning, sobra talaga din sa average nyo.
05:07Dahil ang average nyo is 500 lang.
05:09Do you confirm this, please?
05:15Yes, Richard, sir.
05:20Sige po, is Pagasa finished?
05:24Or do you have a wrap-up statement, pa po?
05:28Maybe we can jump to the last slide.
05:32Sige po, please proceed.
05:33Sige po, please.
06:03The forecasting style.
06:06Kasi dito po, it's not what the weather will do, but it will be what the weather can do.
06:15O kung ano yung, kasi magiging, ano na ito, sir, ano yung magiging action ng mga tao based doon sa forecast.
06:23It's not, it's not na sasabihin lang natin na uulan bukas.
06:27So, ang magiging new paradigm ay kung ano ang gagawin dapat ng tao, kung anong mangyayari doon sa community.
06:41Then, number two is the establishment of an EI based.
06:45I think this was discussed earlier by Dr. Paringit.
06:50Then, we have the strengthening capacity of the Republic of the Philippines for disaster risk reduction.
06:56These are the projects of the Pag-asa funded through the Korean government.
07:06At saka marami pa pong mga ibang mga projects listed here.
07:12But I want to emphasize na lang dito sa sinabi ni Dr. Paringit kanina, which is the flood forecasting and warning system or modeling dito sa anim na medyo river basins.
07:24So, dito po sa ginagawa naming project, we will be developing a flood forecasting model, meaning ito po yung gagamitin natin para sa early warning.
07:36Then, aside from that, magkakaroon po tayo ng mga hazard maps or inundation maps, which can be used for planning.
07:44Yun lang po, maraming salamat, Mr. Chair.
07:46Thank you po, Dr. Servando and Dr. Paringit.
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