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Title: Vertical air motions over the Tropical Western Pacific for validating cloud resolving and regional models

Abstract

The objective of this project was to estimate the vertical air motion using Doppler velocity spectra from two side-by-side vertically pointing radars. The retrieval technique was applied to two different sets of radars. This first set was 50- and 920-MHz vertically pointing radars near Darwin, Australia. The second set was 449-MHz and 2.8-GHz vertically pointing radars deployed at SGP for MC3E. The retrieval technique uses the longer wavelength radar (50 or 449 MHz) to observe both the vertical air motion and precipitation motion while the shorter wavelength radar (920 MHz or 2.8 GHz) observes just the precipitation motion. By analyzing their Doppler velocity spectra, the precipitation signal in the 920 MHz or 2.8 GHz radar is used to mask-out the precipitation signal in the 50 or 449 MHz radar spectra, leaving just the vertical air motion signal.

Authors:
 [1]
  1. Univ. of Colorado, Boulder, CO (United States)
Publication Date:
Research Org.:
Univ. of Colorado, Boulder, CO (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23)
OSTI Identifier:
1172622
Report Number(s):
DOE-UCB-SC0007080_Final_Report.pdf
DOE Contract Number:  
SC0007080
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; Vertical air motion; precipitation

Citation Formats

Williams, Christopher R. Vertical air motions over the Tropical Western Pacific for validating cloud resolving and regional models. United States: N. p., 2015. Web. doi:10.2172/1172622.
Williams, Christopher R. Vertical air motions over the Tropical Western Pacific for validating cloud resolving and regional models. United States. doi:10.2172/1172622.
Williams, Christopher R. Mon . "Vertical air motions over the Tropical Western Pacific for validating cloud resolving and regional models". United States. doi:10.2172/1172622. https://www.osti.gov/servlets/purl/1172622.
@article{osti_1172622,
title = {Vertical air motions over the Tropical Western Pacific for validating cloud resolving and regional models},
author = {Williams, Christopher R.},
abstractNote = {The objective of this project was to estimate the vertical air motion using Doppler velocity spectra from two side-by-side vertically pointing radars. The retrieval technique was applied to two different sets of radars. This first set was 50- and 920-MHz vertically pointing radars near Darwin, Australia. The second set was 449-MHz and 2.8-GHz vertically pointing radars deployed at SGP for MC3E. The retrieval technique uses the longer wavelength radar (50 or 449 MHz) to observe both the vertical air motion and precipitation motion while the shorter wavelength radar (920 MHz or 2.8 GHz) observes just the precipitation motion. By analyzing their Doppler velocity spectra, the precipitation signal in the 920 MHz or 2.8 GHz radar is used to mask-out the precipitation signal in the 50 or 449 MHz radar spectra, leaving just the vertical air motion signal.},
doi = {10.2172/1172622},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Mar 16 00:00:00 EDT 2015},
month = {Mon Mar 16 00:00:00 EDT 2015}
}

Technical Report:

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