Dictionary
to radiosonde
noun
A miniature radio carried aloft by an unmanned balloon to automatically transmit measurements of the upper air such as the wind speed, pressure, temperature, and relative humidity to a receiving station on the ground.
Exact(2)
Possible explanations based on increased ionizing radiation from floating radioactive particles, which are found to be concentrated at low altitudes ((<,500,hbox {m}) according to radiosonde in-situ observations of gamma rays) where negative cloud charges normally exceed positive charges, are discussed.
They compared PWV retrieved from GPS measurements and that obtained from a radiosonde observations and from a water vapor radiometer (WVR) measurements, and obtained good agreements (less than 2 mm RMS to radiosonde and at 2.8 mm RMS to the WVR).
Similar(58)
Wang and Zhang ( 2008) demonstrated that the subsequent improvements to Vaisala radiosonde models from the RS80A to the RS92 have significantly mitigated the impact of the dry bias with respect to GPS-derived PWV, particularly for PWV values ranging from 40 to 60 mm.
As a result, the retrieved PWVs had 3.4 5.4 mm RMS differences compared to the radiosonde observations and 2.3 3.7 mm RMS to those analyzed at nearby fixed ground GNSS sites.
Large under estimation of GNSS PWV compared to a radiosonde launched at 2331UTC on June 10 , 2017 is discussed with relation to radio wave ducting.
In order to avoid radiosonde humidity sensor condensation and eliminate the humidity value influence due to board capacitance distribution in high-altitude environment, a sandwich-plate capacitive humidity sensor, integrated with a snake-like platinum-resistance heater, was designed.
The prototype is similar to a radiosonde in function; however, the prototype logs data at a frequency of 1 Hz to determine relative gusts and also records values on both ascent and descent through the atmosphere.
BAKO station was chosen as a reference for the comparison described in the section 'Comparison between GPS- and radiosonde-derived PWV' both because of its proximity to the radiosonde launch site (about 100 m) and because it is an official IGS station, therefore subject to routine checks and validation.
The high resolution variations of the acoustically derived temperatures are analysed relative to the radiosonde data, but also as frequency spectra.
After the QC was applied, the retrieved PWVs were compared to 77 radiosonde observations.
Referring to the radiosonde profiles, this stable layer appeared near the freezing level.
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