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2013's Tropical Storm Dorian as a tropical wave just north of Puerto Rico on July 29, 2013. A tropical wave (also called easterly wave, tropical easterly wave, and African easterly wave), in and around the Atlantic Ocean, is a type of atmospheric trough, an elongated area of relatively low air pressure, oriented north to south, which moves from east to west across the tropics, causing areas of ...
This wave pattern was first recognized in 1977 using satellite images, by R. Legeckis, who called them "long waves". The term "tropical instability waves" is attributed to a 1986 paper by S. G. H. Philander, W. J. Hurlin, and R. C. Pacanowski, who explained the existence and basic properties of the waves using a mathematical model of ocean heat ...
Mindanao Current. The Mindanao Current (MC) is a southward current in the western Pacific Ocean that transports mass and freshwater between ocean basins. It is a low-latitude western boundary current that follows the eastern coast of the Philippine island group and its namesake, Mindanao. The MC forms from the North Equatorial Current (NEC ...
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; Filipino: Mga Babala ng Bagyo) are tropical cyclone alert levels issued by the Philippine Atmospheric, Geophysical, and Astronomical Services Administration (PAGASA) to areas ...
Recording of CONDAR transmissions on 4.630mhz. Coastal ocean dynamics applications radar ( CODAR) is a type of portable, land-based, high frequency (HF) radar developed between 1973 and 1983 at NOAA 's Wave Propagation Laboratory in Boulder, Colorado. CODAR is a noninvasive system that can measure and map near-surface ocean currents in coastal ...
The average year-round temperature measured from all the weather stations in the Philippines, except Baguio, is 26.6 °C (79.9 °F). Cooler days are usually felt in the month of January with temperature averaging at 25.5 °C (77.9 °F) and the warmest days, in the month of May with a mean of 28.3 °C (82.9 °F). [1]
Marginal seas. v. t. e. The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica) in the south, and is bounded by the continents of Asia and Australia in the west and the Americas in the east.
The national weather bureau issued a severe wind and heavy rainfall warning on Monday, saying "destructive typhoon-force winds extend outward up to 110 km (68.35 miles) from the centre of the storm".