2017
DOI: 10.5194/amt-10-2595-2017
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Improved observations of turbulence dissipation rates from wind profiling radars

Abstract: Abstract. Observations of turbulence dissipation rates in the planetary boundary layer are crucial for validation of parameterizations in numerical weather prediction models. However, because dissipation rates are difficult to obtain, they are infrequently measured through the depth of the boundary layer. For this reason, demonstrating the ability of commonly used wind profiling radars (WPRs) to estimate this quantity would be greatly beneficial. During the XPIA field campaign at the Boulder Atmospheric Observ… Show more

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Cited by 31 publications
(28 citation statements)
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“…Wind profiling radars have also been used to estimate (McCaffrey et al, 2017a), with the spectral width method. Wind Doppler lidars can also provide an extensive network of measurements of at different locations and at heights which are not accessible to traditional mast measurements.…”
Section: Introductionmentioning
confidence: 99%
“…Wind profiling radars have also been used to estimate (McCaffrey et al, 2017a), with the spectral width method. Wind Doppler lidars can also provide an extensive network of measurements of at different locations and at heights which are not accessible to traditional mast measurements.…”
Section: Introductionmentioning
confidence: 99%
“…In order to evaluate and improve turbulence parameterizations in weather and climate models, high resolution and accurate measurements of profiles of turbulence throughout the CBL are needed. Vertical profiles of turbulent motion have been studied using various types of instruments including in situ aircraft measurement (Albrecht et al, ; Andrews et al, ; Lenschow et al, ; Stull et al, ; Vogelmann et al, ; Williams & Hacker, ), radiosonde soundings (Cooper & Eichinger, ; Frehlich & Sharman, ; Garcia‐Carreras et al, ; Neves & Fisch, ; Wilson et al, ), wind profiling radars (Angevine et al, ; Cohn, ; Dehghan et al, ; Ecklund et al, ; McCaffrey, Bianco, & Wilczak, ; McCaffrey, Bianco, Johnston, et al, ; Strauch et al, ; White et al, ), and tall towers (Businger et al, ; Kaimal & Gaynor, ; van Ulden & Wieringa, ; Wilczak & Tillman, ). Even though tall towers can take measurements continuously for long periods of time, their vertical coverage is limited to the lowest portion of the CBL due to their limited height.…”
Section: Introductionmentioning
confidence: 99%
“…Due to the convective motion, in fact, the variance of the vertical velocity is larger inside the boundary layer where many up‐ and down‐drafts are present, decreasing at the top, giving an indication on the boundary layer height. The Doppler spectral width of the vertical velocity is also an indicator of the presence of turbulence [ McCaffrey et al ., ], which is more evident inside the convective boundary layer, decreasing at the top, again helping at inferring where the top of the boundary layer is existed. This FL method (here onward referred to as “original FL method,” OFL) has been effectively applied over different sites of California's central valley [ Bianco et al ., ].…”
Section: Introductionmentioning
confidence: 95%