On the Optimal Measuring Area for Pointwise Rainfall Estimation: A Dedicated Experiment with 14 Laser DisdrometersSource: Journal of Hydrometeorology:;2016:;Volume( 018 ):;issue: 003::page 753Author:Tapiador, F. J.
,
Navarro, A.
,
Moreno, R.
,
Jiménez-Alcázar, A.
,
Marcos, C.
,
Tokay, A.
,
Durán, L.
,
Bodoque, J. M.
,
Martín, R.
,
Petersen, W.
,
de Castro, M.
DOI: 10.1175/JHM-D-16-0127.1Publisher: American Meteorological Society
Abstract: aser 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 m2, 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%.
|
Collections
Show full item record
| contributor author | Tapiador, F. J. | |
| contributor author | Navarro, A. | |
| contributor author | Moreno, R. | |
| contributor author | Jiménez-Alcázar, A. | |
| contributor author | Marcos, C. | |
| contributor author | Tokay, A. | |
| contributor author | Durán, L. | |
| contributor author | Bodoque, J. M. | |
| contributor author | Martín, R. | |
| contributor author | Petersen, W. | |
| contributor author | de Castro, M. | |
| date accessioned | 2017-06-09T17:17:15Z | |
| date available | 2017-06-09T17:17:15Z | |
| date copyright | 2017/03/01 | |
| date issued | 2016 | |
| identifier issn | 1525-755X | |
| identifier other | ams-82434.pdf | |
| identifier uri | http://onlinelibrary.yabesh.ir/handle/yetl/4225548 | |
| description abstract | aser 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 m2, 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%. | |
| publisher | American Meteorological Society | |
| title | On the Optimal Measuring Area for Pointwise Rainfall Estimation: A Dedicated Experiment with 14 Laser Disdrometers | |
| type | Journal Paper | |
| journal volume | 18 | |
| journal issue | 3 | |
| journal title | Journal of Hydrometeorology | |
| identifier doi | 10.1175/JHM-D-16-0127.1 | |
| journal fristpage | 753 | |
| journal lastpage | 760 | |
| tree | Journal of Hydrometeorology:;2016:;Volume( 018 ):;issue: 003 | |
| contenttype | Fulltext |