Rain Parameters Calculated from Raindrop Size Distributionfor the Design of Future Spaceborne Precipitation Radar

نویسندگان

  • Tomoaki Mega
  • Hiroshi Hanado
  • Ken'ichi Okamoto
  • Tomoo Ushio
چکیده

Tomoaki Mega, Hiroshi Hanado, Ken'ichi Okamoto (3) , (4) and Tomoo Ushio (1) Osaka Prefecture University, 1-1, Gakuen-Cho, Sakai, 599-8531, Osaka, Japan, E-mail:mega @aero.osakafu-u.ac.jp (2)Communications Research Laboratory, 4-2-1, Nukui-Kitamachi, Tokyo, 184-8795, Japan, E-mail:[email protected] (3) As (1) above, but E-mail: [email protected] (4) Earth Observation Research Center, NASDA, Office Tower X, 23F, Triton Square, 1-8-10, Harumi, Chuo-ku, Tokyo, 104-6023, Japan (5) As (1) above, but E-mail: [email protected]

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

On the Equivalence of Dual-Wavelength and Dual-Polarization Equations for Estimation of the Raindrop Size Distribution

For airand spaceborne weather radars, which typically operate at frequencies of 10 GHz and above, attenuation correction is usually an essential part of any rain estimation procedure. For ground-based radars, where the maximum range within the precipitation is usually much greater than that from airor spaceborne radars, attenuation correction becomes increasingly important at frequencies above ...

متن کامل

P2.6 a Bayesian Approach to Retrieve Raindrop Size Distribution from Polarimetric Radar Data

The retrieval of raindrop size distribution (DSD) from polarimetric radar data (PRD) has the potential to improve the quantitative precipitation estimation (QPE), understanding precipitation microphysics and quantitative precipitation forecasts (QPF) (e.g., Brandes et al. 2004). Radar measurements and the retrieval model contain errors, which lead to errors in the retrieved DSDs. For example, i...

متن کامل

Raindrop size distributions and radar reflectivity–rain rate relationships for radar hydrology*

The conversion of the radar reflectivity factor Z (mm6 m-3) to rain rate R (mm h-1) is a crucial step in the hydrological application of weather radar measurements. It has been common practice for over 50 years now to take for this conversion a simple power law relationship between Z and R. It is the purpose of this paper to explain that the fundamental reason for the existence of such power la...

متن کامل

Retrieval of Raindrop Size Distribution, Vertical Air Velocity and Water Vapor Attenuation Using Dual-Wavelength Doppler Radar Observations

Two techniques for retrieving the slope and intercept parameters of an assumed exponential raindrop size distribution (RSD), vertical air velocity, and attenuation by precipitation and water vapor in light stratiform rain using observations by airborne, nadir looking dual-wavelength (X-band, 3.2 crn and W-band, 3.2 rnm) radars are presented. In both techniques, the slope parameter of the RSD an...

متن کامل

A method for estimating rain rate and drop size distribution from polarimetric radar measurements

Polarimetric radar measurements are sensitive to the size, shape and orientation of raindrops and provide information about drop size distribution (DSD), canting angle distribution and rain rate. In this paper, we propose and demonstrate a method for retrieving DSD parameters for calculating rain rate and the characteristic particle size. The DSD is assumed to be a Gamma distribution and the go...

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 2002