Radar parameter estimation using raindrop size distribution data
نویسندگان
چکیده
منابع مشابه
Estimation of Raindrop Size Distribution Parameters from Polarimetric Radar Measurements
Estimation of raindrop size distribution over large spatial and temporal scales has been a long-standing goal of polarimetric radar. Algorithms to estimate the parameters of a gamma raindrop size distribution model from polarimetric radar observations of reflectivity, differential reflectivity, and specific differential phase are developed. Differential reflectivity is the most closely related ...
متن کاملRaindrop size distribution estimation from S-band polarimetric radar using a regularized neural network
Radar rainrate estimates are prone to a high degree of uncertainty due to several error sources, among which the space-time variability of the raindrop size distribution (RSD). Polarimetric radar measurements enable the use of combined algorithms which reduce the sensitivity to the variability of the RSD. The aim of this work is to develop a new procedure to retrieve the RSD parameters which ca...
متن کاملStatistical Analysis of the Raindrop Size Distribution Using Disdrometer Data
The present study utilizes nine years of measurements taken from a Joss–Waldvogel disdrometer (JWD). From this dataset, thirty six rainfall events, were selected and categorized, respectively, in convective and stratiform types, according to specific criteria. Six statistical distributions namely the oneand two-parameter exponential, the twoand three-parameter lognormal and finally the twoand t...
متن کاملP2.6 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 کاملNonparametric Estimation of Raindrop Size Distributions from Dual-Polarization Radar Spectral Observations
This paper presents a method to retrieve raindrop size distributions (DSD) from slant profile dualpolarization Doppler spectra observations. It is shown that using radar measurements taken at a high elevation angle raindrop size distributions can be retrieved without making an assumption on the form of a DSD. In this paper it is shown that drop size distributions can be retrieved from Doppler p...
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: PROCEEDINGS OF HYDRAULIC ENGINEERING
سال: 1993
ISSN: 0916-7374,1884-9172
DOI: 10.2208/prohe.37.9