搜尋結果
英格爾伍德
CA, 美國
陰19°14°14°C- Wednesday局部多雲19°14°
- Thursday局部多雲21°14°
- Friday局部多雲21°14°
- Saturday局部多雲21°14°
- Sunday局部多雲21°14°
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The Newport–Inglewood-Rose Canyon Fault Zone The Newport–Inglewood Fault is a right-lateral strike-slip fault in Southern California.The fault extends for 47 mi (76 km) from Culver City southeast through Inglewood and other coastal communities to Newport Beach at which point the fault extends east-southeast into the Pacific Ocean where it is known as the Rose Canyon Fault.
Irvine, California. ( 2020) [8] Irvine ( / ˈɜːrvaɪn /) is the largest city and a master-planned city in central Orange County, California, United States, in the Los Angeles metropolitan area. The Irvine Company started developing the area in the 1960s and the city was formally incorporated on December 28, 1971.
- 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...
California is a state in the Western United States, lying on the American Pacific Coast.It borders Oregon to the north, Nevada and Arizona to the east, and the Mexican state of Baja California to the south. With 39 million residents across an area of 163,696 square miles (423,970 km 2), it is the most populous U.S. state, the third-largest by area, and most populated subnational entity in ...
Fullerton (/ˈfʊlərtən/ FUUL-ər-tən) is a city located in northern Orange County, California, United States. As of the 2020 census, the city had a total population of 143,617.[6] Fullerton was founded in 1887. It secured the land on behalf of the Atchison, Topeka and Santa Fe Railway. Historically it was a center of agriculture, notably ...
Downey is a city located in Southeast Los Angeles County, California, United States, 13 mi (21 km) southeast of Downtown Los Angeles. It is considered part of the Gateway Cities. The city is the birthplace of the Apollo space program. It is also the home of the oldest operating McDonald's restaurant in the world. As of the 2020 census, the ...
San Rafael (/ˌsæn rəˈfɛl/ SAN rə-FEL; Spanish for "St. Raphael", Spanish pronunciation: [san rafaˈel]) is a city and the county seat of Marin County, California, United States. The city is located in the North Bay region of the San Francisco Bay Area. As of the 2020 U.S. census, the city's population was 61,271,[9] up from 57,713 in ...
