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Cyclone Kevin
Severe Tropical Cyclones Judy and Kevin were a pair of intense tropical cyclones that made landfall on the Pacific island nation of Vanuatu within 48 hours of each other in March 2023. They were the fourth and fifth named storms of the 2022–23 South Pacific cyclone season respectively, as well as the second and third severe tropical cyclones of the season. By the end of February, Judy had affected the Solomon Islands, and shortly after, Kevin began to affect the country. The origins of the tropical cyclones started with Judy forming as a tropical disturbance in the South Pacific tropical cyclone, South Pacific basin southeast of Wallis and Futuna on 23 February. After continuous development from very warm sea surface temperatures, the system was classified as a tropical depression on the 26th by the Fiji Meteorological Service, shortly before the agency further upgraded its status to Category 1 the next day and assigned the name Judy to the storm. That same day, a tropical low ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Erromango
Erromango is the fourth largest island in the Vanuatu archipelago. With a land area of , it is the largest island in Tafea Province, the southernmost of Vanuatu's six administrative regions. Name The endonym for Erromango in Erromangan is ''Nelocompne''. There are several accounts of how 'Erromango' came into common usage: firstly, an oral history from the Potnarvin area tells of how Captain James Cook was given a yam during his visit in August 1774, and was told in the (now-extinct) Sorung language ''armai n'go, armai n'go'' ('this food is good'), and mistakenly assumed this to be the name of the island. A second account is related by the naturalist Georg Forster, who accompanied Cook. He writes that he learned the name 'Irromanga' from a man named Fannòko, while visiting the neighbouring island of Tanna five days later. Cook himself does not name the island in his account of his visit, but writes later that he got the name, which he spells as 'Erromango', from Forster. His ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scatterometer
A scatterometer or diffusionmeter is a scientific instrument to measure the return of a beam of light or radar waves scattered by diffusion in a medium such as air. Diffusionmeters using visible light are found in airports or along roads to measure horizontal visibility. Radar scatterometers use radio or microwaves to determine the normalized radar cross section (σ0, "sigma zero" or "sigma naught") of a surface. They are often mounted on weather satellites to find wind speed and direction, and are used in industries to analyze the roughness of surfaces. Optical Optical diffusionmeters are devices used in meteorology to find the optical range or the horizontal visibility. They consist of a light source, usually a laser, and a receiver. Both are placed at a 35° angle downward, aimed at a common area. Lateral scattering by the air along the light beam is quantified as an attenuation coefficient. Any departure from the clear air extinction coefficient (e.g. in fog) is measured a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coordinated Universal Time
Coordinated Universal Time (UTC) is the primary time standard globally used to regulate clocks and time. It establishes a reference for the current time, forming the basis for civil time and time zones. UTC facilitates international communication, navigation, scientific research, and commerce. UTC has been widely embraced by most countries and is the effective successor to Greenwich Mean Time (GMT) in everyday usage and common applications. In specialised domains such as scientific research, navigation, and timekeeping, other standards such as Universal Time, UT1 and International Atomic Time (TAI) are also used alongside UTC. UTC is based on TAI (International Atomic Time, abbreviated from its French name, ''temps atomique international''), which is a weighted average of hundreds of atomic clocks worldwide. UTC is within about one second of mean solar time at 0° longitude, the currently used prime meridian, and is not adjusted for daylight saving time. The coordination of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Time In Vanuatu
Time in Vanuatu is given by Vanuatu Time (VUT; UTC+11:00). Vanuatu does not currently observe daylight saving time. Vanuatu previously observed DST ( UTC+12:00) between 1 September 1983 until 1993. IANA time zone database In the IANA time zone database, Vanuatu is given one time zone: (2020 edition) at the tz database. (IANA). Retrieved 20 May 2021. References External links [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tropical Cyclone Formation Alert
A Tropical Cyclone Formation Alert (TCFA) is a bulletin released by the U.S. Navy-operated Joint Typhoon Warning Center in Honolulu, Hawaii or the Fleet Weather Center in Norfolk, Virginia, warning of the possibility of a tropical cyclone forming from a tropical disturbance that has been monitored. Such alerts are generally always issued when it is fairly certain that a tropical cyclone will form and are not always released before cyclogenesis, particularly if the cyclone appears suddenly. The TCFA consists of several different checks that are performed by the on-duty meteorologist of the system and its surroundings. If the condition being checked is met, a certain number of points are given to the system. Parts of the TCFA Section 1 The first section of the TCFA contains information on the area of the alert as well as the estimated center of the circulation. The estimated maximum sustained winds are provided as well. Section 2 The second section generally contains more specif ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joint Typhoon Warning Center
The Joint Typhoon Warning Center (JTWC) is a joint United States Navy – United States Air Force command in Pearl Harbor, Hawaii. The JTWC is responsible for the issuing of tropical cyclone warnings in the North-West Pacific Ocean, South Pacific Ocean, and Indian Ocean for all branches of the U.S. Department of Defense and other U.S. government agencies. Their warnings are intended primarily for the protection of U.S. military ships and aircraft, as well as military installations jointly operated with other countries around the world. Its U.S. Navy components are aligned with the Naval Meteorology and Oceanography Command. History The origins of the Joint Typhoon Warning Center (JTWC) can be traced back to June 1945, when the Fleet Weather Center/Typhoon Tracking Center was established on the island of Guam, after multiple typhoons, including Typhoon Cobra of December 1944 and Typhoon Connie in June 1945, had caused a significant loss of men and ships. At this time th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Surface Temperatures
Sea surface temperature (or ocean surface temperature) is the ocean temperature, temperature of ocean water close to the surface. The exact meaning of ''surface'' varies in the literature and in practice. It is usually between and below the sea surface. Sea surface temperatures greatly modify air masses in the Atmosphere of Earth, Earth's atmosphere within a short distance of the shore. The thermohaline circulation has a major impact on average sea surface temperature throughout most of the world's oceans. Warm sea surface temperatures can develop and Tropical cyclogenesis, strengthen cyclones over the ocean. Tropical cyclones can also cause a cool wake. This is due to turbulent mixing of the upper of the ocean. Sea surface temperature changes during the day. This is like the air above it, but to a lesser degree. There is less variation in sea surface temperature on breezy days than on calm days. Coastal sea surface temperatures can cause offshore winds to generate upwelling ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tropical Cyclogenesis
Tropical cyclogenesis is the development and strengthening of a tropical cyclone in the atmosphere. The mechanisms through which tropics, tropical cyclogenesis occur are distinctly different from those through which temperate cyclogenesis occurs. Tropical cyclogenesis involves the development of a warm core, warm-core cyclone, due to significant convection in a favorable atmospheric environment. Tropical cyclogenesis requires six main factors: sufficiently warm sea surface temperatures (at least ), atmospheric instability, high humidity in the lower to middle levels of the troposphere, enough Coriolis force to develop a low-pressure area, low-pressure center, a pre-existing low-level focus or disturbance, and low vertical wind shear. Tropical cyclones tend to develop during the summer, but have been noted in nearly every month in tropical cyclone basins, most basins. Climate cycles such as ENSO and the Madden–Julian oscillation modulate the timing and frequency of tropical c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Halalo
Halalo is a village in Wallis and Futuna. It is located in Mua District on the southwest coast of Wallis Island Wallis () is a Polynesian atoll/island in the Pacific Ocean belonging to the French overseas collectivity (''collectivité d'outre-mer'', or ''COM'') of Wallis and Futuna. It lies north of Tonga, northeast of Fiji, east-northeast of the Hoorn .... Its population according to the 2018 census was 471 people. Just to the northeast is the archeological site of Talietumu. References Populated places in Wallis and Futuna {{WallisFutuna-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vatu
The vatu (abbreviation: VT;The Reserve Bank of Vanuatu.Current Banknotes and Coins in Circulation" Accessed 2 March 2013. ISO code: VUV) is the currency of Vanuatu. It has no subdivisions. Etymology The term ''vatu'', used in all three official languages of Vanuatu (English, French, and Bislama), was borrowed from the word for "stone" in some indigenous languages (such as Raga ''vatu''). Ultimately, it descends from Proto-Oceanic ''*patu'', from Proto-Malayo-Polynesian and Proto-Austronesian ''*batu'' of the same meaning. Exchange rate History The vatu was introduced in 1981, one year after independence, to replace the New Hebrides franc at par. The vatu was issued as a single unit with no subdivision, with the 1 vatu coin being the smallest denomination issued, in a similar vein to the (post-1953) Japanese yen and the Tajikistani ruble (although that had an official if theoretical, subdivision). The ISO 4217 currency code for the Vanuatu vatu is VUV. Its nationally ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Espiritu Santo
Espiritu Santo (, ; ) is the largest island in the nation of Vanuatu, with an area of and a population of around 40,000 according to the 2009 census. Geography The island belongs to the archipelago of the New Hebrides in the Pacific region of Melanesia. It is in the Sanma Province of Vanuatu. The town of Luganville, on Espiritu Santo's southeast coast, is Vanuatu's second-largest settlement and the provincial capital. Roads run north and west from Luganville, but most of the island is far from the limited road network. Around Espiritu Santo lie a number of small islands and islets; among them are: Dany Island, Araki Island, Araki, Elephant Island (Vanuatu), Elephant Island, Sakao Island (Sanma, Vanuatu), Sakao, Lataroa, Lataro, Thion (Vanuatu), Thion, Malohu, Malwepe, Malvapevu, Malparavu, Maltinerava, Oyster Island, Tangoa Island, Tangoa, and Bokissa. Vanuatu's highest peak is the Mount Tabwemasana in west-central Espiritu Santo. History A Spanish East Indies, Spanish ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
