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Mount Apo
Mount Apo is the highest mountain peak in the Philippines, with an elevation of 2,954 meters (9,692 ft) above sea level. A large solfataric, dormant stratovolcano, it is part of the Apo-Talomo Mountain Range of Mindanao island. Apo is situated on the tripartite border of Davao City, Davao del Sur, and Cotabato; its peak is visible from Davao City 45 kilometers (28 mi) to the northeast, Digos 25 kilometers (16 mi) to the southeast, and Bansalan 20 kilometers (12 mi) to the west. Apo is a protected area and is the centerpiece of Mount Apo Natural Park.
Mount Apo is a flat-topped, 2,954 m (9,692 ft) (above sea level) high stratovolcano with three peaks. It is the highest peak of the Philippines. The southwest peak has the highest elevation and is topped by a 200 m (656 ft) wide crater that contains a small lake.
The volcanic history of Mount Apo is poorly known but eruptions have produced andesitic-to-dacitic lava. A line of solfataras extend from the southeast flank at an elevation of 2,400 m (7,874 ft) to the summit. Mount Apo is not known to have had historical eruptions, and was incorrectly attributed to be the source volcano of the 1641 eruption of Mount Melibengoy, also in Mindanao.
Apo is a title of respect meaning "revered elder" in various languages of the surrounding Lumad indigenous peoples. It is the shortened form of the original Manobo and Kalagan name Apo Sandawa ("Elder Sandawa" or "Grandfather Sandawa"), the name of the spirit of the mountain. Apo Sandawa is also regarded as an ancestor spirit by the various Manobo and Kalagan tribes living in the foothills, including the Obo, Manobo Bagobo, Manobo Apao, Tagabawa, Matigsalug, Ata, Arumanen, Tinananen, Kulamanen, Tagakaulo and Kagan peoples. The mountain itself is considered sacred grounds. Various rituals to Apo Sandawa are conducted by the supreme walyan (shaman) known as the diwata, who also serves as the medium for Apo Sandawa and the ancestor spirits of the Manobo and Kalagan tribes.
The climate at the summit of Mount Apo is alpine (Köppen ETH) as its mean temperature does not exceed 10 °C or 50 °F in any month. It falls under the Type IV climate under the modified corona's classification wherein rainfall is uniformly distributed throughout the year. Mean monthly temperature ranges from a low 6.9 °C (44.4 °F) during January to 8.9 °C (48.0 °F) during April. Monthly relative humidity ranges from 78% during March and April and 82% during June and July. Minima reach 2.4 °C (36.3 °F) in January and February.[citation needed]
In late March–April 2016, due to the extreme effects of El Niño caused by climate change, massive patches of forest fires and bushfires appeared on the slopes of the mountain, causing hikers on the mountain to halt their ascent. Tourism in the region was threatened due to a massive haze engulfing the slopes of the mountain. The mountain later recovered after the government and local stakeholders initiated a holistic recovery plan for the entire natural park.
There are four major lakes in Mount Apo. Popular of these are Lake Agco, which used to be called "The Blue Lake", and Lake Venado, a well-known mountaineers camping site and a stopover towards the peak. Lake Macadac and Lake Jordan are found in the summit grassland.
Mount Apo has 19 major rivers and 21 creeks draining its 8 major watersheds (PASAlist.1992). Out of the 19 major rivers, only two has studies as reported by SEA-BMB consultants for the Mt. Apo Geothermal Project Environmental Impact Assessment 1991. According to the report, there are two river ecosystems draining the geothermal site namely: (1) Marbel-Matingao river ecosystem- characterized by narrower river channels at highly elevated areas, much faster water flow, clearer water and rock boulder-rich water beds. The aquatic organisms in the area have expectedly lower biological productivity and species diversity. The report also concluded that this river ecosystem provides much less economic and commercial value for its biological production. The study identified 12 species of fish caught in the area; (2) Kabacan River- Pulangi River ecosystem- characterized by a much wider channels at flat areas, relatively much slower water flow, highly turbid waters and sandy mud river beds.
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Mount Apo
Mount Apo is the highest mountain peak in the Philippines, with an elevation of 2,954 meters (9,692 ft) above sea level. A large solfataric, dormant stratovolcano, it is part of the Apo-Talomo Mountain Range of Mindanao island. Apo is situated on the tripartite border of Davao City, Davao del Sur, and Cotabato; its peak is visible from Davao City 45 kilometers (28 mi) to the northeast, Digos 25 kilometers (16 mi) to the southeast, and Bansalan 20 kilometers (12 mi) to the west. Apo is a protected area and is the centerpiece of Mount Apo Natural Park.
Mount Apo is a flat-topped, 2,954 m (9,692 ft) (above sea level) high stratovolcano with three peaks. It is the highest peak of the Philippines. The southwest peak has the highest elevation and is topped by a 200 m (656 ft) wide crater that contains a small lake.
The volcanic history of Mount Apo is poorly known but eruptions have produced andesitic-to-dacitic lava. A line of solfataras extend from the southeast flank at an elevation of 2,400 m (7,874 ft) to the summit. Mount Apo is not known to have had historical eruptions, and was incorrectly attributed to be the source volcano of the 1641 eruption of Mount Melibengoy, also in Mindanao.
Apo is a title of respect meaning "revered elder" in various languages of the surrounding Lumad indigenous peoples. It is the shortened form of the original Manobo and Kalagan name Apo Sandawa ("Elder Sandawa" or "Grandfather Sandawa"), the name of the spirit of the mountain. Apo Sandawa is also regarded as an ancestor spirit by the various Manobo and Kalagan tribes living in the foothills, including the Obo, Manobo Bagobo, Manobo Apao, Tagabawa, Matigsalug, Ata, Arumanen, Tinananen, Kulamanen, Tagakaulo and Kagan peoples. The mountain itself is considered sacred grounds. Various rituals to Apo Sandawa are conducted by the supreme walyan (shaman) known as the diwata, who also serves as the medium for Apo Sandawa and the ancestor spirits of the Manobo and Kalagan tribes.
The climate at the summit of Mount Apo is alpine (Köppen ETH) as its mean temperature does not exceed 10 °C or 50 °F in any month. It falls under the Type IV climate under the modified corona's classification wherein rainfall is uniformly distributed throughout the year. Mean monthly temperature ranges from a low 6.9 °C (44.4 °F) during January to 8.9 °C (48.0 °F) during April. Monthly relative humidity ranges from 78% during March and April and 82% during June and July. Minima reach 2.4 °C (36.3 °F) in January and February.[citation needed]
In late March–April 2016, due to the extreme effects of El Niño caused by climate change, massive patches of forest fires and bushfires appeared on the slopes of the mountain, causing hikers on the mountain to halt their ascent. Tourism in the region was threatened due to a massive haze engulfing the slopes of the mountain. The mountain later recovered after the government and local stakeholders initiated a holistic recovery plan for the entire natural park.
There are four major lakes in Mount Apo. Popular of these are Lake Agco, which used to be called "The Blue Lake", and Lake Venado, a well-known mountaineers camping site and a stopover towards the peak. Lake Macadac and Lake Jordan are found in the summit grassland.
Mount Apo has 19 major rivers and 21 creeks draining its 8 major watersheds (PASAlist.1992). Out of the 19 major rivers, only two has studies as reported by SEA-BMB consultants for the Mt. Apo Geothermal Project Environmental Impact Assessment 1991. According to the report, there are two river ecosystems draining the geothermal site namely: (1) Marbel-Matingao river ecosystem- characterized by narrower river channels at highly elevated areas, much faster water flow, clearer water and rock boulder-rich water beds. The aquatic organisms in the area have expectedly lower biological productivity and species diversity. The report also concluded that this river ecosystem provides much less economic and commercial value for its biological production. The study identified 12 species of fish caught in the area; (2) Kabacan River- Pulangi River ecosystem- characterized by a much wider channels at flat areas, relatively much slower water flow, highly turbid waters and sandy mud river beds.