- 行业: Weather
- Number of terms: 60695
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The American Meteorological Society promotes the development and dissemination of information and education on the atmospheric and related oceanic and hydrologic sciences and the advancement of their professional applications. Founded in 1919, AMS has a membership of more than 14,000 professionals, ...
Irregular fluctuations in an earth current, often associated with electric field strengths as large as several volts per kilometer, in the earth's crust, superimposed on the normal diurnal variation of the earth currents. Such storms are closely related to magnetic storms.
Industry:Weather
An instrument package flown on ERBS (launched October 1984), and also on the NOAA-9 and -10 polar-orbiting satellites (launched December 1984 and September 1986, respectively). ERBE consists of separate scanning and nonscanning instruments that were designed to determine the monthly average radiation budget on regional, zonal, and global scales. An earlier earth radiation budget instrument was flown on Nimbus-6 and -7 (launched June 1975 and October 1978).
Industry:Weather
The temperature inside the earth. May also refer to the surface temperature.
Industry:Weather
A sun-synchronous polar-orbiting satellite designed for remote sensing and mapping of land areas. Launched in July 1972, the satellite was renamed Landsat-1.
Industry:Weather
The spatial distribution of various components and properties of the earth, such as the core, mantle, elastic properties, etc.
Industry:Weather
A major NASA initiative to develop state-of-the-art remote sensing instruments for global studies of the land surface, biosphere, solid earth, atmosphere, and oceans. Current plans call for three major satellite platforms, two in polar and one in a low inclination orbit. One polar orbiter (EOS-AM) will have a midmorning descending node crossing time, while the other (EOS-PM) will have an equator crossing time in the afternoon. The third (EOS- CHEM) will be in a low inclination orbit. Each EOS satellite is designed to make maximum use of simultaneous, complementary views of the earth from a wide variety of instruments. EOS-AM will be the first satellite launched in this series, followed by EOS-PM, and the EOS Chemistry Mission (EOS-CHEM). The AM mission will be based on a suite of instruments including an advanced spaceborne thermal emission and reflection radiometer, a cloud and earth radiant energy system, a multiangle imaging spectroradiometer, a moderate resolution spectroradiometer, and a sensor to measure pollution in the troposphere. Instruments carried on the PM platform will include the advanced microwave scanning radiometer-EOS, the moderate resolution spectroradiometer, an advanced microwave sounding unit, an atmospheric infrared sounder, a humidity sounder for Brazil, and the cloud and earth radiant energy system. The EOS-CHEM will monitor atmospheric ozone, aerosols, and pollution using the high-resolution dynamics limb sounder, the microwave limb sounder, an ozone monitoring instrument, and the tropospheric emission spectrometer.
Industry:Weather
A coil of wire that is rotated in the earth's magnetic field. The electrical current induced in this coil is a measure of the magnetic field intensity.
Industry:Weather
A large-scale surge of electric charge within the conductive earth, associated with a disturbance of the ionosphere. Current patterns of quasi-circular form and extending over areas the size of whole continents have been identified and are known to be closely related to solar-induced variations in the extreme upper atmosphere.
Industry:Weather
The solid, liquid, and gaseous parts of the planet taken as a whole. Near-earth space (such as the magnetosphere) is often included.
Industry:Weather
