by U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Weather Service in Sterling, Va .
Written in English
|Statement||Walter E. Hoehne|
|Series||NOAA technical memorandum NWS T & ED -- 16|
|Contributions||United States. National Weather Service. Test and Evaluation Division|
|The Physical Object|
|Pagination||iv, 23 p. :|
|Number of Pages||23|
Functional precision of National Weather Service upper-air measurements using VIZ Manufacturing Co. "B" radiosonde (Model ) Published Date: Twice a day, seven days a week, nearly stations around the world (including at the NWS Weather Forecast Office in Green Bay) release weather balloons into the atmosphere to obtain upper air weather information. (Click here for a map of stations in the U.S.) Under the helium or hydrogen-filled balloon a small instrument, called a radiosonde. Upper-air Observations Program. The National Weather Service (NWS) Upper-air Observations Program is managed by the Office of Observations (OBS), which is part of NWS Headquarters located in Silver Spring, Maryland. Upper-air Program staff oversee the operation of 92 Radiosonde stations in North America and the Pacific Islands. A THERMOMETER measures the air temperature. Most thermometers are closed glass tubes containing liquids such as alcohol or mercury. When air around the tube heats the liquid, the liquid expands and moves up the tube. A scale then shows what the actual temperature is. A BAROMETER measures air pressure. It tells you whether or not the pressure is.
A weather balloon or sounding is a sort of mobile weather station in that it carries instruments into the upper air in able to record observations of weather variables (like atmospheric pressure, temperature, humidity, and winds), then sends back this data during its suborbital flight. It is comprised of a 6-foot-wide helium- or hydrogen-filled latex balloon, a payload package Author: Tiffany Means. Upper-air Weather Chart Weather maps that are produced for the portion of the atmosphere above the lower troposphere, generally at and above mb. Isolines on these maps usually represent the heights of a constant pressure surface, such as the mb surface. Instruments for PAMS Upper-Air Meteorological Measurements STI Clinton MacDonald, Tim Dye, Charley Knoderer Sonoma Technology, Inc. Petaluma, CA for National Ambient Air Monitoring Conference Atlanta, GA Aug 2 Upper-Air PAMS Background • Photochemical Assessment Monitoring Stations (PAMS): one upper-air meteorological site. supplement upper air data from pi-lot reports (PIREPS), weather bal-loons and satellites. The information flows to the National Center for En-vironmental Prediction, where it is ingested by NWS computer models. The data also goes to the Forecast Sys-tems Laboratory, where it is displayed on an interactive Web page. See Fig-ure 1, Size: KB.
CHAPTER 12 Š MEASUREMENT OF UPPER AIR PRESSURE, TEMPERATURE AND HUMIDITY MEASUREMENT OF UPPER AIR PRESSURE, TEMPERATURE AND HUMIDITY General Definitions The following definitions from WMO (; a) are relevant to upper air measurements using a radiosonde: Radiosonde: Instrument intended to be carried File Size: KB. The atmospheric pressure reported by The National Weather Service and used in weather reports is not an actual pressure. It is corrected to sea level pressure, so that a stated pressure means the same thing, as far as weather trends go, in areas of different elevations. For example an pressure of inches of mercury (inHg) atFile Size: KB. A station located in Camp Springs, Maryland where weather information from around the world is collected, including weather maps, charts, and forecasts on a national as well as global scales. Information is disseminated to regional Weather Forecast Offices, which prepare local . Start studying Chapter 13 (Final). Learn vocabulary, terms, and more with flashcards, games, and other study tools. the unit within the National Weather Service that develops and applies numerical models for use by National Weather Service officials and water vapor content, such that characteristics of air parcels can be determined as.