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Continuous-wave radar (CW radar) is a type of radar system where a known stable frequency continuous wave radio energy is transmitted and then received from any reflecting objects. [1] Individual objects can be detected using the Doppler effect , which causes the received signal to have a different frequency from the transmitted signal ...
Ten-code. Ten-codes, officially known as ten signals, are brevity codes used to represent common phrases in voice communication, particularly by US public safety officials and in citizens band (CB) radio transmissions. The police version of ten-codes is officially known as the APCO Project 14 Aural Brevity Code.[ 1]
As the center of the storm moved out to sea, a batch of moisture broke off it, and moved north, bringing moderate rain to New England. The storm caused millions of dollars in damage. September 4, 2010 – Hurricane Earl passed about 90 miles offshore, but still brought heavy rain, large waves, and tropical storm force gusts to Cape Cod.
A synthetic-aperture radar is an imaging radar mounted on a moving platform. [10] Electromagnetic waves are transmitted sequentially, the echoes are collected and the system electronics digitizes and stores the data for subsequent processing. As transmission and reception occur at different times, they map to different small positions.
August 10, 1953: Typhoon Nina flooded the Inarajan road and Talofofo bridge and also uprooted trees. [1] October 14–16, 1953: Typhoon Alice's 24-hour rainfall total at Andersen Air Base, 18.33 in (466 mm), was the record high in Guam until Typhoon Pamela of 1976 struck the island. [1]
An NWS preliminary comparison of the tracks of the 2013 Moore tornado (red), the 1999 Bridge Creek–Moore tornado (green), and the 2003 Moore–Choctaw tornado (blue). On May 20, 2013, a prominent central upper trough moved eastward toward the Central United States, with a lead upper low pivoting over the Dakotas and Upper Midwest region.
The storm weakened over land, but it regained hurricane status about one hour after entering the Gulf of Mexico, and it continued strengthening over open waters. On August 27, the storm reached Category 3 intensity on the Saffir-Simpson hurricane wind scale, becoming the third major hurricane of the season.
Inverse synthetic-aperture radar ( ISAR) is a radar technique using radar imaging to generate a two-dimensional high resolution image of a target. It is analogous to conventional SAR, except that ISAR technology uses the movement of the target rather than the emitter to create the synthetic aperture. [1] ISAR radars have a significant role ...