Physics
Scientific paper
Jan 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001jastp..63..285f&link_type=abstract
Journal of Atmospheric and Solar-Terrestrial Physics, Volume 63, Issue 2-3, p. 285-294.
Physics
11
Scientific paper
We carried out an MU radar-RASS campaign during August 2-6, 1995, and collected both radar echoes and virtual temperatures with good time resolution. We first investigated the accuracy of the Brunt-Väisälä frequency squared from the RASS temperature profiles, comparing them with radiosonde results launched from the radar site. We then evaluated the turbulence energy dissipation rate (/ɛ) by two radar methods: the Doppler spectral width and the radar echo power. Meteorological conditions were very calm throughout the campaign, which is ideal for deriving /ɛ by the spectral width method. Under calm conditions, the variation of /ɛ from spectral width is mainly influenced by the Doppler spectral width and is less dependent on the Brunt-Väisälä frequency. On the other hand, /ɛ from echo power is mainly determined by the echo power intensity. Though /ɛ values from both methods are roughly on the same order, their characteristics differ significantly. /ɛ with spectral width did not show large variations with time and height, while /ɛ with echo power showed significant fluctuations. We suspect that /ɛ from echo power is inaccurate because the refractive-index gradient in the calculation of /ɛ is mainly controlled by the humidity gradient in moist regions.
Furumoto J.
Tsuda Teruhisa
No associations
LandOfFree
Characteristics of energy dissipation rate and effect of humidity on turbulence echo power revealed by MU radar-RASS Measurements does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Characteristics of energy dissipation rate and effect of humidity on turbulence echo power revealed by MU radar-RASS Measurements, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Characteristics of energy dissipation rate and effect of humidity on turbulence echo power revealed by MU radar-RASS Measurements will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1363489