A dropsonde is a weather reconnaissance device created by the National Center for Atmospheric Research (NCAR), designed to be dropped from an aircraft at altitude to more accurately measure (and therefore track) tropical storm conditions as the device falls to the ground.
Source: Dropsonde
http://en.wikipedia.org/wiki/Dropsonde
Dropsonde (album) - Wikipedia, the free encyclopedia
Dropsonde (2006) is an ambient album by musician Biosphere (alias Geir Jenssen). Unlike his previous output, there is a notable jazz influence present on this album. The title refers to a dropsonde...
en.wikipedia.org/wiki/Dropsonde_(album)
It’s a small tube with instruments in it that has a parachute attached. It also has a radio transmitter to send data back up to the airplane. When we get to the center of a hurricane at 10,000 feet, the dropsonde operator will release the “...
http://www.aoc.noaa.gov/faq.htm
The RD93 is used with the Vaisala AVAPS and AVAPS Lite dropsonde receiving systems. The RD93 transmits data over a telemetry link to the onboard receiving system. The onboard GPS receiver tracks the dropsonde's horizontal movement as it is borne by the wind.
www.vaisala.com/files/RD93_Dropsonde_Datasheet_eng.pdf www.vaisala.com/files/RD93_Dropsonde_Datasheet_eng.pdf
It's a small tube with instruments in it that has a parachute attached. It also has a radio transmitter to send data back up to the airplane. At various places in the storm such as in the eyewall and at the center of a hurricane, the weathe...
http://www.hurricanehunters.com/faq.htm
GPS Dropsondes are instruments deployed from aircraft to measure temperature, humidity, pressure, The sonde moves with the horizontal wind as it falls at 10 m/s (2000 ft/min) so that the wind can be determined from the Doppler shifts of the GPS signals. ... Readings are telemetered to the airplane at half second intervals.
www.aoml.noaa.gov/hrd/nhurr97/GPSNDW.HTM
HRD field program mission catalog, surface wind analysis archive, synoptic surveillance assessments, Atlantic hurricane re-analysis project, basin-wide info., and explanation of data formats. ... Mission Catalog ; Sfc. Wind Anal.; Radar Data ; Syn. Surveillance; Re-Anal. ... ; OAR; ; NOAA Aircraft Operations Center...
www.aoml.noaa.gov/hrd/data_sub/assessment.html
Some information is received from dropsondes dropped into a tropical cyclone. A dropsonde is a radio-like instrument that records wind speed and direction, air pressure, air temperature, and altitude of these qualities.
www.weather.com/encyclopedia/tropical/tracking.html
The dropsonde is literally dropped from an aircraft at flight level. The data collected by the dropsonde are radioed back to the aircraft. A parachute is deployed after the dropsonde leaves the aircraft to slow the flight of the dropsonde.
www.aos.wisc.edu/~hopkins/wx-inst/wxi-raob.htm