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The Philippine Atmospheric, Geophysical and Astronomical Services Administration (Filipino: Pangasiwaan ng Pilipinas sa Serbisyong Atmosperiko, Heopisiko at Astronomiko, [4] abbreviated as PAGASA, which means "hope" as in the Tagalog word pag-asa) is the National Meteorological and Hydrological Services (NMHS) agency of the Philippines mandated to provide protection against natural calamities ...
Doppler effect. The emitted signal toward the car is reflected back with a variation of frequency that depends on the speed away/toward the radar (160 km/h). This is only a component of the real speed (170 km/h). The Doppler effect (or Doppler shift), named after Austrian physicist Christian Doppler who proposed it in 1842, is the difference ...
Weather radar, also called weather surveillance radar ( WSR) and Doppler weather radar, is a type of radar used to locate precipitation, calculate its motion, and estimate its type (rain, snow, hail etc.). Modern weather radars are mostly pulse-Doppler radars, capable of detecting the motion of rain droplets in addition to the intensity of the ...
The Philippine Area of Responsibility. The Philippine Area of Responsibility ( PAR) is an area in the Northwestern Pacific where PAGASA, the Philippines ' national meteorological agency, monitors weather occurrences. Significant weather disturbances, specifically tropical cyclones that enter or develop in the PAR, are given Philippine-specific ...
The Philippines is archipelagic country in Southeast Asia, located in the northwest Pacific Ocean. It consists of 7,641 islands. It consists of 7,641 islands. The country is known to be "the most exposed country in the world to tropical storms", with about twenty tropical cyclones entering the Philippine area of responsibility each year.
This was a modified version of the AN/APS-2F radar, which the Weather Bureau acquired from the Navy. The WSR-1A, WSR-3, and WSR-4 were also variants of this radar. [88] This was followed by the WSR-57 (Weather Surveillance Radar – 1957) was the first weather radar designed specifically for a national warning network. Using WWII technology ...
Map of Tropical Cyclone Wind Signals hoisted in most of Luzon, Philippines due to Typhoon Noru (Karding) at 5:00 PM PhST on September 25, 2022. The Tropical Cyclone Wind Signals (TCWS, or simply wind signals or signals; [a] Filipino: Mga Babala ng Bagyo) are tropical cyclone alert levels issued by the Philippine Atmospheric, Geophysical, and Astronomical Services Administration (PAGASA) to ...
Typhoon Fengshen, known in the Philippines as Typhoon Frank, was the sixth named storm and the fourth typhoon recognized by the Japan Meteorological Agency. The Joint Typhoon Warning Center recognized Fengshen as the seventh tropical depression, the sixth tropical storm, and fifth typhoon of the 2008 Pacific typhoon season .
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