By Marita Moaje | Philippine News Agency
The Department of Environment and Natural Resources (DENR) is using weather stations and satellite mapping to track early signs of drought and water stress as it strengthens measures to help communities cope with El Niño’s impacts.
In a news release Tuesday, Environment Secretary Juan Miguel Cuna said the agency has deployed Automated Weather Stations (AWS), Satellite Heat Stress Mapping, and Geographic Information System (GIS)-based risk modeling to strengthen the early warning framework.
“In an era of accelerating climate extremes, timely information saves ecosystems and lives,” Cuna said, noting the importance of leveraging modern technology to anticipate climate shocks.
“By deploying satellite-based heat stress tracking for coral reefs in Aurora, processing Automated Weather Station data to map fire hazards in the Agusan Marsh, and running Red Flag alert systems in Region 1, the DENR is replacing reactive measures with precision early warning,” he added, stressing the importance of data-driven environmental governance.
He said the technology allows the agency to monitor rainfall deficits, changing water levels, and other environmental conditions to identify areas vulnerable to water shortages and guide local conservation efforts.
“At the same time, we are strengthening water conservation and resource management efforts to help communities and institutions cope with the growing risks of drought and water scarcity,” Sec. Cuna said.
Water conservation efforts
The DENR has directed its regional offices to promote water-efficient practices, monitor water availability, and prioritize areas facing or at risk of shortages, dry spells, and drought.
In Catanduanes and Masbate, field personnel use daily weather station data to track drying creeks, dry forest patches, shallow reefs, and other signs of water stress.
The findings support localized drought advisories and water conservation measures in agricultural and coastal communities.
At the Agusan Marsh Wildlife Sanctuary in Caraga, automated weather stations monitor heat indices, rainfall deficits, and water levels.
The data help personnel map peatland fire risks and direct patrols to vulnerable areas.
The DENR is also monitoring coral bleaching risks using satellite-derived sea surface temperature data.
In Aurora province, elevated temperatures prompted coral bleaching alerts in May, June, and July 2026, with waters reaching Coral Bleaching Alert Level 1, while reef monitoring was ordered in Aurora, Bataan, and Zambales.
The US National Oceanic and Atmospheric Administration (NOAA) said coral bleaching happens when stressed corals expel the microscopic, colorful algae or zooxanthellae, living inside their tissues, causing them to turn completely white and vulnerable to starvation.
In Ilocos Region, 10 ranger stations equipped with lookout towers support a Red Flag Alert System linked to the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) and local disaster risk reduction offices to detect early signs of wildland fires.
“We are equipping our field teams and local chief executives with real-time environmental intelligence to safeguard our forests, coral reefs, water resources, and coastal communities before severe damage occurs,” Sec. Cuna said.
The DENR has ordered regional offices to maintain continuous data transmission from automated weather stations and require marine monitoring teams to submit weekly reef assessment reports to the national portal.
The agency said the data would help guide drought preparedness, water conservation, and climate adaptation measures.
