越南峴港天氣 相關
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越南
陰32°26°26°C- Thursday雷雨32°26°
- Friday局部多雲32°26°
- Saturday多雲33°26°
- Sunday局部多雲34°26°
- Monday多雲36°26°
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Vietnam,[d][e] officially the Socialist Republic of Vietnam (SRV),[f] is a country at the eastern edge of mainland Southeast Asia, with an area of about 331,000 square kilometres (128,000 sq mi) and a population of over 100 million, making it the world's fifteenth-most populous country. Vietnam shares land borders with China to the north, and ...
- dd/mm/yyyy
Ho Chi Minh City (HCMC; Vietnamese: Thành phố Hồ Chí Minh), commonly known as Saigon (Vietnamese: Sài Gòn), is the most populous city in Vietnam, with a population of around 10 million in 2023.[7] The city's geography is defined by rivers and canals, of which the eponymously-named Saigon River is the largest. As a municipality, Ho Chi ...
- 19 m (63 ft)
- Vietnam
- 1698
- Ho Chi Minh
- History
- Forecast Sub-Organizations
- Data Acquisition
- Event-Driven Products
- Product Dissemination
- Technology
- Organization
- Privatization and Dismantling Attempts
- Accuracy Problems
1870-1899
Calls for the creation of a government weather bureau began as early as 1844, when the electrical telegraph was introduced. In 1869, Cleveland Abbe began developing probabilistic forecasts using daily weather data sent via telegraph by the Cincinnati Chamber of Commerce and Western Union, which he convinced to back the collection of such information. Meanwhile, Increase A. Lapham of Wisconsin lobbied Congress to create such a service, having witnessed the destructive power of storms in the Gr...
20th century
The first Weather Bureau radiosonde was launched in Massachusetts in 1937, which prompted a switch from routine aircraft observation to radiosondes within two years. The Bureau prohibited the word "tornado" from being used in any of its weather products out of concern for inciting panic (a move contradicted in its intentions by the high death tolls in past tornado outbreaks due to the lack of advanced warning) until 1938, when it began disseminating tornado warnings exclusively to emergency m...
The NWS, through a variety of sub-organizations, issues different forecasts to users, including the general public. Although, throughout history, text forecasts have been the means of product dissemination, the NWS has been using more forecast products of a digital, gridded, image or other modern format. Each of the 122 Weather Forecast Offices (WF...
Surface observations
The primary network of surface weather observation stations in the United States is composed of Automated Surface Observing Systems (ASOS). The ASOS program is a joint effort of the National Weather Service (NWS), automatic weather station(AWS), the Federal Aviation Administration (FAA), and the Department of Defense (DOD). ASOS stations are designed to support weather forecast activities and aviation operations and, at the same time, support the needs of the meteorological, hydrological, and...
Marine observations
NWS forecasters need frequent, high-quality marine observations to examine conditions for forecast preparation and to verify their forecasts after they are produced. These observations are especially critical to the output of numerical weather models because large bodies of water have a profound impact on the weather. Other users rely on the observations and forecasts for commercial and recreational activities. To help meet these needs, the NWS's National Data Buoy Center (NDBC) in Hancock Co...
Upper air observations
Upper air weather data is essential for weather forecasting and research. The NWS operates 92 radiosonde locations in North America and ten sites in the Caribbean. A small, expendable instrument package is suspended below a 2 metres (6.6 ft) wide balloon filled with hydrogen or helium, then released daily at or shortly after 1100 and 2300 UTC, respectively. As the radiosonde rises at about 300 meters/minute (1,000 ft/min), sensors on the radiosonde measure profiles of pressure, temperature, a...
The National Weather Service has developed a multi-tier concept for forecasting or alerting the public to all types of hazardous weather: 1. Outlook – Hazardous Weather Outlooks are issued daily by individual Weather Forecast Offices to address potentially hazardous weather or hydrologic events that may occur over the next seven days. The outlook w...
NOAA Weather Radio All Hazards (NWR), promoted as "The Voice of the National Weather Service", is a special radio system that transmits uninterrupted weather watches, warnings and forecasts 24 hours a day directly from a nearby NWS office, with the broadcasts covering across 95–97% of the United States' population. The system – which is owned and o...
The WSR-88D Doppler weather radar system, also called NEXRAD, was developed by the National Weather Service during the mid-1980s, and fully deployed throughout the majority of the United States by 1997. There are 158 such radarsites in operation in the U.S., its various territorial possessions and selected overseas locations. This technology, becau...
As of 2016, the National Weather Service was organized as follows 1. Chief Information Officer 2. National Centers for Environmental Prediction (NCEP) 2.1. Aviation Weather Center (AWC) 2.2. Climate Prediction Center(CPC) 2.3. Environmental Modeling Center(EMC) 2.4. Weather Prediction Center(WPC) 2.5. Ocean Prediction Center(OPC) 2.6. NCEP Central ...
While respected as one of the premier weather organizations in the world, the National Weather Service has been perceived by some conservatives in 2005 as competing unfairly with the private sector. National Weather Service forecasts and data, being works of the federal government, are in the public domainand thus available to anyone for free in ac...
Critics such as University of Washington professor Cliff Mass have claimed that NWS forecasts are not as accurate as they could be, and that this has resulted in inaccurate daily weather forecasts and dangerously bad predictions concerning the location and intensity of extreme weather events like blizzards and hurricanes. In 2016, the British Met O...
Current ISO 3166 country codes. The sortable table below contains the three sets of ISO 3166-1 country codes for each of its 249 countries, links to the ISO 3166-2 country subdivision codes, and the Internet country code top-level domains (ccTLD) which are based on the ISO 3166-1 alpha-2 standard with the few exceptions noted.
Vietnam War. FULRO fought an insurgency against both South Vietnam and North Vietnam with the Viet Cong and was supported by Cambodia for much of the war. The Vietnam War (also known by other names) was a conflict in Vietnam, Laos, and Cambodia from 1 November 1955 [A 1] to the fall of Saigon on 30 April 1975. It was the second of the Indochina ...
The Maldives, [c] officially the Republic of Maldives, [d] and historically known as Maldive Islands, is a country and archipelagic state in South Asia in the Indian Ocean. [9] The Maldives is named after the main island and capital, Malé. The Maldives is southwest of Sri Lanka and India, about 750 kilometres (470 miles; 400 nautical miles ...
The Weather Channel (TWC) is an American pay television channel owned by Weather Group, LLC, a subsidiary of Allen Media Group. The channel's headquarters are located in Atlanta, Georgia.Launched on May 2, 1982, the channel broadcasts weather forecasts and weather-related news and analysis, along with documentaries and entertainment programming related to weather.
