2010
DOI: 10.1029/2009jd012916
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First observations of turbulence parameters in the troposphere over the Bay of Bengal and the Arabian Sea using radiosonde

Abstract: [1] This paper discusses the turbulence characteristics of the free atmosphere over the Bay of Bengal and the Arabian Sea during the premonsoon season of 2006. The turbulence scaling concepts, developed over the past decades for application to oceanic mixing, are used for retrieving turbulence properties in the free atmosphere from high-resolution soundings, as described by Clayson and Kantha (2008). The variability in the vertical turbulence structure over a large spatial region is studied using this novel me… Show more

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Cited by 35 publications
(22 citation statements)
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“… C K , which is the square of the proportional coefficient c between these two variables, is the most uncertain parameter in the Thorpe analysis. Clayson and Kantha () used C K = 0.3, and this value is also used in several other studies (Alappattu & Kunhikrishnan, ; Muhsin et al, ; Nath et al, ; Sunilkumar et al, ). Since L O cannot be computed from HVRRD, C K can only be inferred through a reasonable comparison with other observations.…”
Section: Discussionmentioning
confidence: 99%
“… C K , which is the square of the proportional coefficient c between these two variables, is the most uncertain parameter in the Thorpe analysis. Clayson and Kantha () used C K = 0.3, and this value is also used in several other studies (Alappattu & Kunhikrishnan, ; Muhsin et al, ; Nath et al, ; Sunilkumar et al, ). Since L O cannot be computed from HVRRD, C K can only be inferred through a reasonable comparison with other observations.…”
Section: Discussionmentioning
confidence: 99%
“…As shown in Figure , the average vertical diffusivities in CAM5 are several orders of magnitude larger than they were in CAM4 and are larger than observations Alappattu and Kunhikrishnan [] made using high‐resolution radiosondes in the Bay of Bengal and Arabian Sea. In the models, the tropical average diffusivity is very similar to the diffusivity calculated just in the region studied by Alappattu and Kunhikrishnan []. Using this increased diffusivity causes CAM5/CARMA to have a tropopause that is too high and too wet.…”
Section: Model Descriptionmentioning
confidence: 99%
“…It has been recently proposed by Clayson and Kantha (2008) to apply Thorpe analyses to the huge data-base of meteorological radiosondes (hereafter noted RS), in order to infer the space-time variability of atmospheric turbulence in the free atmosphere. Since then, several such studies were published (Alappattu and Kunhikrishnan, 2010;Nath et al, 2010). Also, Balsley et al (2010) proposed to use slow-ascent radiosondes for observing turbulence in the atmosphere.…”
Section: Introductionmentioning
confidence: 99%