4WX.com - Online Weather Information Center
4WX Internet Search
     
  
ABC.NET Search Portal
Weather Info
Your default weather location
(Set your options)
American Weather
Canadian Weather
International Weather
Weather Maps
US Satellite View Maps
Glossary of Weather Terms
4WX Weather Calculators and converters
CupidLove Free matchmaking portal!
Temp. Converter
  Celsius:
     Fahrenheit:
  
  Enter your "Place, State", US Zip Code or ICAO:   
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z

Narrowband Data - the collection of data products transmitted from the a WSR-88D RPG to a PUP or to a NIDS vendor for external distribution

NCAR - acronym for National Center for Atmospheric Research in Boulder, CO

NCEP - acronym for National Centers for Environmental Prediction; the modernized version of NMC

NDVI (Normalized Difference Vegetation Index)- an index produced using AVHRR data from NOAA polar orbiting satellites. The index is used for monitoring vegetation changes over large areas with a resolution up to 1 km.

Near-Infrared Radiation - a type of electromagnetic radiation having a slightly higher wavelength than visible radiation

Negative-Tilt Trough - an upper level system which is tilted to the west with increasing latitude (i.e., with an axis from southeast to northwest); often it is a sign of a developing or intensifying system

Net Solar Radiation - the difference between the downward and upward fluxes of solar radiation

Net Terrestrial Radiation - the difference between the downward and upward fluxes of the terrestrial radiation fluxes

NEXRAD (NEXt-Generation Weather RADar) - network of high-resolution Doppler radars operated by the NWS; NEXRAD units are known as WSR-88D

NGM (Nested Grid Model) - one of the operational forecast models run at NCEP; the NGM is run twice daily, with forecast output out to 48 hours

NIDS - an acronym for NEXRAD Information Dissemination Service, which is a system whereby four commercial vendors have the exclusive right to distribute a certain subset of NEXRAD products to agencies outside the DoD, NWS, and FAA

Nimbostratus - a gray colored and often dark cloud, accompanied by more or less continuously falling rain, snow, sleet, etc. and not by lightning, thunder, or hail

Nitrogen - a colorless, tasteless, odorless gas that constitutes 78% of the atmosphere by volume and occurs as a constituent of all living tissues in combined form

NMC - acronym for the National Meteorological Center near Washington, D.C.; now known as NCEP

NOAA - acronym for the National Oceanographic and Atmospheric Administration

Nocturnal Radiation - see effective terrestrial radiation

Non-Coherent Radar - a conventional radar in which the phase of the transmitted radiation is not known

Northern Lights - see Aurora Borealis

Nowcasting - short-term weather forecasting for the near future, generally from minutes up to a few hours in the future

NSSFC - acronym for the old National Severe Storms Forecast Center in Kansas City, MO; now the Storm Prediction Center in Norman, OK

NSSL - acronym for National Severe Storms Laboratory in Norman, OK

Numerical Weather Prediction (NWP) - the forecasting of the evolution of atmospheric disturbances by computational methods on a computer

NWP - acronym for Numerical Weather Prediction; see Numerical Weather Prediction

NWS - acronym for National Weather Service

Nyquist Velocity - see maximum unambiguous velocity

 

A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z
Copyright © 2004 4WX.com, all rights reserved. - Part of the ABC.NET Network!
Weather Disclaimer - Terms of use -

Partners: Nomoz Directory | All Whois | Free Classifieds | Stamps | Whois | Domain Registree | Kool Branding | Private Search | Yallaa