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A weather radar with a range of 240 km (150 mi) was set up at Kallang Airport in 1948, and an upper-air observatory was formed in 1953 to study the vertical profile of the atmosphere by releasing weather balloons. [5]
The weather station is located near Phitsanulok airport. But both the Royal Thai Air Force and civil aviation use their own weather station for the pilots' briefing. In the northern region just five stations have a weather radar with a radius of 120 km or 240 km, they are station Chiang Rai, Lamphun, Phitsanulok, Phetchabun and Tha Wang Pha. [2]
When the weather station is located near an airport, the Royal Thai Air Force and civil aviation use their own weather station for the pilots' briefing. In the northeastern region just four stations have a weather radar with a radius of 120 km or 240 km, they are station Sakon Nakhon, Khon Kaen, Ubon Ratchathani and Surin. [1]
DMI operates five dual-polarization C-band weather radars from Finnish-based Vaisala.These radars have a Doppler and full-range of 240 km. DMI's first precipitation radar was installed in Karup in 1957, but due to its limited technological capabilities, it was decommissioned in the early 1990s.
The renewal of the network, from 2018 to 2023, with new S-Band radars brings these numbers respectively to 300 km (190 mi) for reflectivity and 240 km (150 mi) for full Doppler coverage. [2] Furthermore, the new radars are dual-polarized which means precipitation type can be estimated directly.
The scientific technology is quickly evolving and, in 1995, the METEOSAT satellite localized at 36.000 km above the Earth provided the first high quality images every half-hour. In 2001, the Royal Meteorological Institute acquired a brand new radar able to measure all kind of precipitation within a range of 240 km.
Weather radar in Norman, Oklahoma with rainshaft Weather (WF44) radar dish University of Oklahoma OU-PRIME C-band, polarimetric, weather radar during construction. Weather radar, also called weather surveillance radar (WSR) and Doppler weather radar, is a type of radar used to locate precipitation, calculate its motion, and estimate its type (rain, snow, hail etc.).
NEXRAD or Nexrad (Next-Generation Radar) is a network of 159 high-resolution S-band Doppler weather radars operated by the National Weather Service (NWS), an agency of the National Oceanic and Atmospheric Administration (NOAA) within the United States Department of Commerce, the Federal Aviation Administration (FAA) within the Department of Transportation, and the U.S. Air Force within the ...