- 업종: Weather
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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, ...
The time-domain integration of measurements in a coherent radar over a sequence of pulses or over an observation interval, prior to estimating the signal properties, to improve the signal-to-noise ratio while minimizing signal processing. For such integration to be effective, the integration period must be limited to the time over which the phase of the signal relative to a reference phase does not change substantially (i.e., the coherence time of the signal). The effect of the coherent integration process is to reduce the effective data sampling rate and the Nyquist frequency.
Industry:Weather
The time-domain integration of measurements in a coherent radar over a sequence of pulses or over an observation interval, prior to estimating the signal properties, to improve the signal-to-noise ratio while minimizing signal processing. For such integration to be effective, the integration period must be limited to the time over which the phase of the signal relative to a reference phase does not change substantially (i.e., the coherence time of the signal). The effect of the coherent integration process is to reduce the effective data sampling rate and the Nyquist frequency.
Industry:Weather
Used in fluid mechanics; the ratio of the area, measured at the vena contracta of a jet of liquid issuing from an opening, to the area of the opening.
Industry:Weather
Used in fluid mechanics; the ratio of the area, measured at the vena contracta of a jet of liquid issuing from an opening, to the area of the opening.
Industry:Weather
A line on a tidal chart joining places that have the same tidal range or amplitude; usually drawn for a particular tidal constituent or tidal condition (e.g., mean spring tides).
Industry:Weather
A line on a tidal chart joining places that have the same tidal range or amplitude; usually drawn for a particular tidal constituent or tidal condition (e.g., mean spring tides).
Industry:Weather
That portion of the sky cover that is attributed to clouds, usually measured in tenths or eighths of sky covered.
Industry:Weather
That portion of the sky cover that is attributed to clouds, usually measured in tenths or eighths of sky covered.
Industry:Weather
A type of standing cloud that forms along a mountain range, either on the ridge or slightly above and to the lee of it. Its process of formation and maintenance is identical to that of the cap cloud. Compare banner cloud; see lenticularis.
Industry:Weather
A type of standing cloud that forms along a mountain range, either on the ridge or slightly above and to the lee of it. Its process of formation and maintenance is identical to that of the cap cloud. Compare banner cloud; see lenticularis.
Industry:Weather
