ESRL Global Systems Division

Research on GPS and NOAA's Profiler Network Presented at AIR-MASS 2005

Two scientists from the Forecast Systems Laboratory presented their research on the NOAA Profiler Network and GPS water vapor observations at the first bi-annual Air Capital Mid-America Storm Symposium (AIR-MASS 2005). This regional storm conference was hosted recently by the Wichita, Kansas Chapter of the American Meteorological Society and the National Weather Association. The focus of the conference was fostering science -- sharing of new tools, techniques, and technologies related to improving forecasts, warnings, and responses to hazardous weather conditions that affect the central U.S. The conference was attended by researchers, NWS operational forecasters, private meteorologists, companies specializing in value-added weather data, and broadcast meteorologists. The different perspectives on the use of weather data, and the varied customers of NOAA and other data providers, were illuminating. Many presenters noted the use and value of wind profiler data and GPS water vapor data.

FSL researcher Seth Gutman presented a talk [6.5MB PowerPoint] on the contributions of GPS water vapor observations to numerical weather prediction and regional forecasting during severe weather. He described the meteorological impact of the GPS water vapor measuring technique developed at FSL. Ground-based GPS provides continuous total refractivity measurements of the atmosphere from which water vapor can be retrieved under all weather conditions with high accuracy and reliability at very low cost.

Meteorologist Doug van de Kamp discussed the current status of NOAA's Profiler Network and its likely future evolution. He described the transmitter (and antenna) frequency conversion that would be required for continued operation of the profiler network beyond 2008. The NOAA Profiler Network provides reliable hourly observations of winds from the surface to the lower stratosphere, showing details not available from other observing systems.

For more information, see FSL's Web pages containing presentation materials on GPS and NPN subjects.

Contact information
Name: Doug van de Kamp
Tel: 303 497 6309