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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 ...
The radar is a NEXRAD WSR‐88D, and was one of the first in the nation to be upgraded to dual polarization capability on September 21, 2011. [9] [8] It is the only operational WSR-88D that scans as low as 0.2 degrees above the horizon, which sometimes causes image artifacts due to sea clutter. [10] [11]
MESO-SAILS. SAILS concept. Multiple Elevation Scan Option for Supplemental Adaptive Intra-Volume Low-Level Scan [1] (abbreviated MESO-SAILS ), [2] is a dynamic scanning option for the WSR-88D, controllable by the operator of the radar, when in VCP mode 12 and 212, and additionally 35 and 215 with the Build 18 update scheduled for October 2017.
Wind turbines, due to their height above ground, affect the WSR-88D data in several ways. When the radar beam interacts with the blades of the wind turbines, it causes strong returns that can look ...
Early radar technologies, such as WSR-57 (Weather Surveillance Radar - 1957), have been replaced by the Next Generation Weather Radar program which was installed in segments during the 1990s. Also known as WSR-88D (Weather Surveillance Radar 88 Doppler), NEXRAD is a doppler system that replaced older non-Doppler meteorological radars.
The WSR-57 (Weather Surveillance Radar - 1957) was the first 'modern' weather radar. Initially commissioned at the Miami Hurricane Forecast Center, the WSR-57 was installed in other parts of the Contiguous United States (CONUS). [2] The WSR-57 was the first generation of radars designed expressly for a national warning network.
The Joint Polarization Experiment (JPOLE) was a test for evaluating the performance of the WSR-88D in order to modify it to include dual polarization.This program was a joint project of the National Weather Service (NWS), the Federal Aviation Administration (FAA), and the US Air Force Meteorological Agency (AFWA), which took place from 2000-2004.
A NEXRAD weather radar currently used by the National Weather Service (NWS) is a 10 cm wavelength (2700-3000 MHz) radar capable of a complete scan every 4.5 to 10 minutes, depending on the number of angles scanned, and depending on whether or not MESO-SAILS [7] is active, which adds a supplemental low-level scan while completing a volume scan.