Size Distribution Estimation Method using Reflected Laser Light Angle Dependency by Rain Droplets

نویسنده

  • Kohei Arai
چکیده

Methods for size distribution estimation and rainfall type discrimination with estimated phase function using measured reflected laser light by rain droplet are proposed. Preliminary experiments are conducted with Laser ranging instrument and spectral radiometer for estimation of size distribution and rainfall type discrimination as well as phase function of scattering by rain drops. Through the experiments, it is found that rainfall type can be discriminated together with rain droplet size distribution estimation. Keywords—Rainfall; Laser ranging; Marshall Palmer distribution; Rayleigh scattering; Mie scattering; Phase function; Rain drpolet size distribution

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

GNSS Measurement of Rain Rate by Polarimetric Phase Shift: Theoretical Analysis

In this paper, a novel method for rain rate estimation is researched by polarimetric phase shift of the Global Navigation Satellite System (GNSS). The physical process of GNSS signals propagating through rain-filled medium is investigated, by which the cause of polarimetric phase shift is explored. Then, a theoretical model between polarimetric phase shift ∆φ and rain rate R is established and ...

متن کامل

Investigation of absorption pump light distribution in edged-pumped high power Yb:YAGYAG disk laser

In this article, we present a specific shape of disk laser which is side-pumped by four non-symmetric hollow- ducts. The use of non-symmetric hollow duct based on two goals of the uniformity of the pump light distribution profile and the homogeneity of pump light profile through the disk. First of all we simulated the pump light distribution in the disk by using Monte-Carlo ray tracing method. ...

متن کامل

Compared Radar Reflectivity with Heavy Rain Droplet Size Distribution

2. Chinese Academy of Meteorological Sciences, Beijing,10086 Abstract Using OTT-Parsivel Laser Particle Spectrometer at Nanjing in East China, several times heavy rain droplet scale & velocity spectral data aquatic from Mt. Lushan weather stations (elevation 1300meters) Compared to the plain deep convective clouds heavy precipitation, the rain droplet size distribution (DSD) with two elevation ...

متن کامل

A Maximum Entropy Modelling of the Rain Drop Size Distribution

This paper presents a maximum entropy approach to Rain Drop Size Distribution (RDSD) modelling. It is shown that this approach allows (1) to use a physically consistent rationale to select a particular probability density function (pdf) (2) to provide an alternative method for parameter estimation based on expectations of the population instead of sample moments and (3) to develop a progressive...

متن کامل

Height Dependency of Aerosol-Cloud Interaction Regimes

This study investigates the height dependency of aerosol-cloud interaction regimes in terms of the joint dependence of the key cloud microphysical properties (e.g., cloud droplet number concentration and cloud droplet relative dispersion) on aerosol number concentration (Na) and vertical velocity (w). The three distinct regimes with differentmicrophysical features are the aerosol-limited regime...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2016