The Bias in Moment Estimators for Parameters of Drop Size Distribution Functions: Sampling from Exponential Distributions
نویسندگان
چکیده
منابع مشابه
14.5 Estimators for Parameters of Drop-size Distribution Functions: Sampling from Gamma Distributions
This work represents a continuation in the investigation of techniques to estimate the parameters for raindrop-size-distribution (DSD) functions. Although moment estimators are often used to estimate these parameters, our previous work (Smith and Kliche, 2005; Smith et al., 2005) showed that the method of moments produces biased results that can lead to misleading extrapolations, and that the r...
متن کاملStochastic Comparisons of Probability Distribution Functions with Experimental Data in a Liquid-Liquid Extraction Column for Determination of Drop Size Distributions
The droplet size distribution in the column is usually represented as the average volume to surface area, known as the Sauter mean drop diameter. It is a key variable in the extraction column design. A study of the drop size distribution and Sauter-mean drop diameter for a liquid-liquid extraction column has been presented for a range of operating conditions and three different liquid-liquid sy...
متن کاملExamination of the – Relation Suggested for Drop Size Distribution Parameters
Raindrop size distributions are often assumed to follow a three-parameter gamma distribution. Since rain intensity retrieval from radar observations is an underdetermined problem, there is great interest in finding physical correlations between the parameters of the gamma distribution. One of the more common approaches is to measure naturally occurring drop size distributions (DSDs) using a dis...
متن کامل4 5 6 Diagnosing the Intercept Parameters of the Exponential Drop Size Distributions in a 7 Single - Moment Microphysics Scheme and Impact on Supercell Storm Simulations
38 39 In this study, power-law relations are developed between the intercept parameter of the 40 exponential particle size distribution and the water content for the rain, hail, graupel and snow 41 hydrometeor categories. The derived relations are implemented within the Milbrandt and Yau 42 microphysics scheme. Simulations of the 3 May 1999 Oklahoma tornadic supercell are 43 performed using the...
متن کاملDiagnosing the Intercept Parameters of the Exponential Drop Size Distributions in a 6 Single - Moment Microphysics Scheme and Impact on Supercell Storm Simulations
Manuscript (non-LaTeX) Click here to download Manuscript (non-LaTeX): WainwrightEtal_JAMCApr2014_final.docx 2 Abstract 36 37 In this study, power-law relations are developed between the intercept parameter N 0 of 38 the exponential particle size distribution and the water content for the rain, hail, graupel and 39 snow hydrometeor categories within the Milbrandt and Yau microphysics scheme. Sim...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Applied Meteorology
سال: 2005
ISSN: 1520-0450,0894-8763
DOI: 10.1175/jam2258.1