Estimation of rainfall erosivity based on WRF-derived raindrop size distributions
نویسندگان
چکیده
منابع مشابه
Rainfall erosivity in Europe.
Rainfall is one the main drivers of soil erosion. The erosive force of rainfall is expressed as rainfall erosivity. Rainfall erosivity considers the rainfall amount and intensity, and is most commonly expressed as the R-factor in the USLE model and its revised version, RUSLE. At national and continental levels, the scarce availability of data obliges soil erosion modellers to estimate this fact...
متن کاملRainfall Estimation from Polarimetric Radar Measurements: Composite Algorithms Immune to Variability in Raindrop Shape–Size Relation
Polarization diversity radar measurements such as reflectivity factor, differential reflectivity, and differential propagation phase are extensively used in rainfall estimation. Algorithms to estimate rainfall from polarimetric radar measurements are based on a model for the raindrop shape as a function of drop diameter. Most of the current algorithms use an equilibrium shape–size model for rai...
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 کاملEstimation of rainfall erosivity using 5- to 60-minute fixed-interval rainfall data from China
The 30-min rainfall erosivity index (EI30) is commonly used in the Universal Soil Loss Equation for predicting soil loss from agricultural hillslopes. EI30 is calculated from the total kinetic energy and the maximum 30-min rainfall intensity of a storm. Normally, EI30 values are calculated from breakpoint rainfall information taken from continuous recording rain gauge charts, however, in many p...
متن کاملMeasurements of raindrop-size distributions from dual- polarization spectral observations
Rainfall radar observations depend on underlying raindropsize distributions. Since rain rates retrieval from radar measurements is problem of current interest there is great importance in independent measurements of naturally occurring drop-size distributions. Often in situ measurements of raindrop size distributions are performed using disdrometers (Bringi et al. 2003). Despite wide acceptance...
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: Hydrology and Earth System Sciences
سال: 2020
ISSN: 1607-7938
DOI: 10.5194/hess-24-5407-2020