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Tropical Storm Winona (1990)
Tropical Storm Winona struck Japan during August 1990. An area of disturbed weather developed within the monsoon trough, located over the East China Sea, on August 4. Despite the presence of strong wind shear, a tropical depression developed later that day. The depression initially tracked northeast, bypassing the southern tip of Kyushu. Thereafter, the depression turned southeast, and on August 6, was believed to have obtained tropical storm intensity. In response to a building subtropical ridge to its southeast, Winona veered north while gradually intensifying. On August 9, Winona peaked in intensity, and while near peak intensity, made landfall in Shizuoka Prefecture early the following morning. Winona transitioned into an extratropical cyclone on August 11, and was last observed on August 14. The tropical storm lashed the Japanese archipelago with heavy rains, strong winds, and waves up to high. More than 60 scheduled domestic air flights betw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Japan
Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north toward the East China Sea, Philippine Sea, and Taiwan in the south. Japan is a part of the Ring of Fire, and spans Japanese archipelago, an archipelago of List of islands of Japan, 6852 islands covering ; the five main islands are Hokkaido, Honshu (the "mainland"), Shikoku, Kyushu, and Okinawa Island, Okinawa. Tokyo is the Capital of Japan, nation's capital and largest city, followed by Yokohama, Osaka, Nagoya, Sapporo, Fukuoka, Kobe, and Kyoto. Japan is the List of countries and dependencies by population, eleventh most populous country in the world, as well as one of the List of countries and dependencies by population density, most densely populated and Urbanization by country, urbanized. About three-fourths of Geography of Japan, the c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atmospheric Convection
Atmospheric convection is the result of a parcel-environment instability, or temperature difference layer in the atmosphere. Different lapse rates within dry and moist air masses lead to instability. Mixing of air during the day which expands the height of the planetary boundary layer leads to increased winds, cumulus cloud development, and decreased surface dew points. Moist convection leads to thunderstorm development, which is often responsible for severe weather throughout the world. Special threats from thunderstorms include hail, downbursts, and tornadoes. Overview There are a few general archetypes of atmospheric instability that are used to explain convection (or lack thereof). A necessary (but not sufficient) condition for convection is that the environmental lapse rate (the rate of decrease of temperature with height) is steeper than the lapse rate experienced by a rising parcel of air. When this condition is met, upward-displaced air parcels can become buoyant and th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Tsukuba
is an mountain located at the northern-end of Tsukuba, Japan. It is one of the most famous mountains in Japan, particularly well known for its double peaks, and . Many people climb the so-called "purple mountain" every year for the panoramic view of the Kantō plain from the summit. On clear days the Tōkyō skyline, Lake Kasumigaura and even Mount Fuji are visible from the summit. Japanese mountains are mostly volcanic, but Mount Tsukuba is non-volcanic granite and gabbro in origin. Renowned beautiful granites are produced in the northern quarries even today. Etymology The , a national geography completed in 721 AD, says Mount Tsukuba was named after a noble called . According to this account, the area around Mount Tsukuba was once called . Under the reign of (Emperor Sujin), Tsukuha no Mikoto from the was appointed as its governor. He had a strong desire to leave his name in history, so he renamed the area "Tsukuha", which is now pronounced Tsukuba. History As leg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harunasan
is a dormant stratovolcano in Gunma, eastern Honshū, Japan. Outline Mount Haruna started to form more than 300,000 years ago and the last known eruption was 550 AD. The volcano has a summit caldera containing the symmetrical cinder cone of Mount Haruna-Fuji, along with a crater lake, Lake Haruna, along the western side. To the west of the lake is Mount Kamonga, the tallest of Mount Haruna's numerous peaks at high. The lake and the area to its east, as well as the southern and southwestern slopes, lie within the borders of Takasaki city. The border of Shibukawa city (to the east) nearly approaches Lake Haruna. Both Shinto village and Yoshioka town are on the southeast slopes of the mountain. The northern and northwestern slopes lie within Higashi Agatsuma town, which also bounds Lake Haruna. The summit lies on the border of Takasaki and Higashi Agatsuma. Mount Haruna, along with Mount Akagi and Mount Myōgi, is one of the "Three Mountains of Jōmō." (Jōmō is an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hakone
is a town in Kanagawa Prefecture, Japan. , the town had a population of 11,293 and a population density of 122 persons per km². The total area of the town is . The town is a popular tourist destination due to its many hot springs and views of Mount Fuji. Geography Hakone is located in the mountains in the far west of the prefecture, on the eastern side of Hakone Pass. Most of the town is within the borders of the volcanically active Fuji-Hakone-Izu National Park, centered on Lake Ashi. Surrounding municipalities Kanagawa Prefecture *Odawara *Yugawara * Minami-ashigara Shizuoka Prefecture' *Gotemba * Susono *Mishima * Oyama *Kannami Climate Hakone has a Humid subtropical climate (Köppen ''Cfa'') characterized by warm summers and cool winters with light to no snowfall. The average annual temperature in Hakone is 13.3 °C. The average annual rainfall is 2221 mm with September as the wettest month. The temperatures are highest on average in August, at around 24.0 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Institute Of Informatics
The is a Japanese research institute located in Chiyoda, Tokyo, Japan. NII was established in April 2000 for the purpose of advancing the study of informatics. This institute also works on creating systems to facilitate the spread of scientific information to the general public. It oversees and maintains a large, searchable information database on a variety of scientific and non-scientific topics called Webcat. NII is the only comprehensive research institute in informatics in Japan. It is a major part of the Graduate University for Advanced Studies, SOKENDAI, and since 2002 has offered a Ph.D. program in informatics. History NII had its inception in a proposition from the Ministry of Education, Science, Sports, and Culture presented to the Science Council in October 1973, entitled "Improved Circulation System for Academic Information." In 1976 the Research Center for Library and Information Science was established at the University of Tokyo, paving the way for the institu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Westerlies
The westerlies, anti-trades, or prevailing westerlies, are prevailing winds from the west toward the east in the middle latitudes between 30 and 60 degrees latitude. They originate from the high-pressure areas in the horse latitudes and trend towards the poles and steer extratropical cyclones in this general manner. Tropical cyclones which cross the subtropical ridge axis into the westerlies recurve due to the increased westerly flow. The winds are predominantly from the southwest in the Northern Hemisphere and from the northwest in the Southern Hemisphere. The westerlies are strongest in the winter hemisphere and times when the pressure is lower over the poles, while they are weakest in the summer hemisphere and when pressures are higher over the poles. The westerlies are particularly strong, especially in the Southern Hemisphere (called also 'Brave West winds' at striking Chile, Tasmania and New Zealand), in areas where land is absent, because land amplifies the flow pattern, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hamamatsu, Japan
is a Cities of Japan, city located in western Shizuoka Prefecture, Japan. the city had an estimated population of 791,707 in 340,591 households, making it the prefecture's largest city, and a population density of . The total area of the site was . Overview Hamamatsu is a member of the World Health Organization’s Alliance for Healthy Cities (AFHC). Cityscapes File:Hamamatsu Castle, enkei-3.jpg, Hamamatsu Castle（2021） File:Views from Hamamatsu Castle20211002.jpg, City views from Hamamatsu Castle（2021） File:Hamamatsu view - panoramio.jpg, Central Business District, CBD of Hamamatsu File:Hamamatsu from Mount Tonmaku.jpg, Part of Hamamatsu Skyline File:Skyline of Hamamatsu01.jpg, Skyline of Hamamatsu File:Arco Mall Yurakugai in Hamamatsu City（2）.jpg, Yūrakugai File:Night view of Hamamatsu city.jpg, Night view of Hamamatsu Geography Hamamatsu is southwest of Tokyo.Fukue, Natsuko.Nonprofit brings together foreign, Japanese residents in HamamatsuArchive. ''T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barometric Pressure
Atmospheric pressure, also known as barometric pressure (after the barometer), is the pressure within the atmosphere of Earth. The standard atmosphere (symbol: atm) is a unit of pressure defined as , which is equivalent to 1013.25 millibars, 760mm Hg, 29.9212 inchesHg, or 14.696psi.International Civil Aviation Organization. ''Manual of the ICAO Standard Atmosphere'', Doc 7488-CD, Third Edition, 1993. . The atm unit is roughly equivalent to the mean sea-level atmospheric pressure on Earth; that is, the Earth's atmospheric pressure at sea level is approximately 1 atm. In most circumstances, atmospheric pressure is closely approximated by the hydrostatic pressure caused by the weight of air above the measurement point. As elevation increases, there is less overlying atmospheric mass, so atmospheric pressure decreases with increasing elevation. Because the atmosphere is thin relative to the Earth's radius—especially the dense atmospheric layer at low altitudes—the Earth's gravi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tropical Cyclone Scales
Tropical cyclones are ranked on one of five tropical cyclone intensity scales, according to their maximum sustained winds and which tropical cyclone basins they are located in. Only a few scales of classifications are used officially by the meteorological agencies monitoring the tropical cyclones, but other scales also exist, such as accumulated cyclone energy, the Power Dissipation Index, the Integrated Kinetic Energy Index, and the Hurricane Severity Index. Tropical cyclones that develop in the Northern Hemisphere are unofficially classified by the warning centres on one of three intensity scales. Tropical cyclones or subtropical cyclones that exist within the North Atlantic Ocean or the North-eastern Pacific Ocean are classified as either tropical depressions or tropical storms. Should a system intensify further and become a hurricane, then it will be classified on the Saffir–Simpson hurricane wind scale, and is based on the estimated maximum sustained winds over a 1-minut ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Outflow (meteorology)
Outflow, in meteorology, is air that flows outwards from a storm system. It is associated with ridging, or anticyclonic flow. In the low levels of the troposphere, outflow radiates from thunderstorms in the form of a wedge of rain-cooled air, which is visible as a thin rope-like cloud on weather satellite imagery or a fine line on weather radar imagery. For observers on the ground, a thunderstorm outflow boundary often approaches in otherwise clear skies as a low, thick cloud that brings with it a gust front. Low-level outflow boundaries can disrupt the center of small tropical cyclones. However, outflow aloft is essential for the strengthening of a tropical cyclone. If this outflow is restricted or undercut, the tropical cyclone weakens. If two tropical cyclones are in close proximity, the upper-level outflow from the upwind system can limit the development of the other system. Thunderstorms For thunderstorms, outflow tends to indicate the development of a system. Large quan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tropical Cyclone Naming
Tropical cyclones and subtropical cyclones are named by various warning centers to simplify communication between forecasters and the general public regarding forecasts, watches and warnings. The names are intended to reduce confusion in the event of concurrent storms in the same basin. Once storms develop sustained wind speeds of more than , names are generally assigned to them from predetermined lists, depending on the basin in which they originate. Some tropical depressions are named in the Western Pacific; while tropical cyclones must contain a significant amount of gale-force winds before they are named in the Southern Hemisphere. Before it became standard practice to give personal (first) names to tropical cyclones, they were named after places, objects, or the saints' feast days on which they occurred. Credit for the first usage of personal names for weather systems is generally given to Queensland Government Meteorologist Clement Wragge, who named systems between 18 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
