RT Journal Article
T1 On the optimal measuring area for pointwise rainfall estimation: a dedicated experiment with 14 laser disdrometers
A1 Tapiador, F. J.
A1 Navarro, A.
A1 Moreno, R.
A1 Jiménez-Alcazar, A.
A1 Marcos, C.
A1 Tokay, A.
A1 Durán Montejano, Luis
A1 Bodoque, J. M.
A1 Martín, R.
A1 Petersen, W. P.
A1 Castro, M. de
AB Laser disdrometers measure the particle size distribution (PSD) of hydrometeors through a small cross-sectional (tens of square centimeters) surface. Such a limited area induces a sampling effect in the estimates of the PSD, which translates to error in the reflectivity-rain-rate (Z-R) relationship used for ground radar estimates of rainfall, estimates of kinetic energy of precipitation, and any other hydrometeorological application relying on particle size information. Here, the results of a dedicated experiment to estimate the extent of the effect of limited area sampling of rainfall are presented. Using 14 Parsivel, version 1 (Parsivel-1), disdrometers placed within 6 m(2), it was found that the combined area of at least seven disdrometers is required for the estimates to start converging to a stable value. The results can be used to quantify the degree of over-/underestimation of precipitation parameters for a single instrument due to the limited collecting area effect. It has been found that a single disdrometer may underestimate instantaneous rain rate by 70%.
PB American Meteorological Society
SN 1525-755X
YR 2017
FD 2017-03-01
LK https://hdl.handle.net/20.500.14352/94955
UL https://hdl.handle.net/20.500.14352/94955
LA eng
NO Tapiador, F. J., and Coauthors, 2017: On the Optimal Measuring Area for Pointwise Rainfall Estimation: A Dedicated Experiment with 14 Laser Disdrometers. J. Hydrometeor., 18, 753–760, https://doi.org/10.1175/JHM-D-16-0127.1.
NO Ministerio de Economía y Competitividad (España)
NO Instituto de Salud Carlos III
NO Campus Científico y Tecnológico de la Energía y el Medio Ambiente
NO NASA Precipitation Science
NO GPM programs
DS Docta Complutense
RD 8 abr 2025