2024-03-29T15:01:27Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1648632020-06-02T09:19:03Zcom_10261_75com_10261_6col_10261_328
Comparison of precipitation measurements by OTT Parsivel2 and Thies LPM optical disdrometers
Angulo-Martínez, Marta
Beguería, Santiago
Latorre Garcés, Borja
Fernández-Raga, María
Ministerio de Economía, Industria y Competitividad (España)
European Commission
27 Pags.- 7 Tabls.- 14 Figs. © Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
. Optical disdrometers are present weather sensors
with the ability of providing detailed information on precipitation
such as rain intensity, radar reflectivity or kinetic
energy, together with discrete information on the particle
size and fall velocity distribution (PSVD) of the hydrometeors.
Disdrometers constitute a step forward towards a more
complete characterization of precipitation, being useful in
several research fields and applications. In this article the
performance of two extensively used optical disdrometers,
the most recent version of OTT Parsivel2 disdrometer and
Thies Clima Laser Precipitation Monitor (LPM), is evaluated.
During 2 years, four collocated optical disdrometers,
two Thies Clima LPM and two OTT Parsivel2
, collected up
to 100 000 min of data and up to 30 000 min with rain in
more than 200 rainfall events, with intensities peaking at
277 mm h−1
in 1 minute. The analysis of these records shows
significant differences between both disdrometer types for all
integrated precipitation parameters, which can be explained
by differences in the raw PSVD estimated by the two sensors.
Thies LPM recorded a larger number of particles than
Parsivel2
and a higher proportion of small particles than OTT
Parsivel2
, resulting in higher rain rates and totals and differences
in radar reflectivity and kinetic energy. These differences
increased greatly with rainfall intensity. Possible
causes of these differences, and their practical consequences,
are discussed in order to help researchers and users in the
choice of sensor, and at the same time pointing out limitations
to be addressed in future studies.
This work has been supported by the research
projects CGL2011-24185, CGL2014-52135-C3-1-R and
CGL2017-83866-C3-3-R, financed by the Spanish Ministerio
de Economía, Industria y Competitividad (MINECO) and EUFEDER.
The work of Marta Angulo-Martínez was supported by a
postdoctoral grant by MINECO.
Peer reviewed
2018-05-17T10:43:08Z
2018-05-17T10:43:08Z
2018-05
artículo
http://purl.org/coar/resource_type/c_6501
Angulo-Martínez M, Beguería S, Latorre B, Fernández-Raga M. Comparison of precipitation measurements by OTT Parsivel2 and Thies LPM optical disdrometers. Hydrology and Earth Systems Sciences 22: 2811–2837 (2018)
1027-5606
http://hdl.handle.net/10261/164863
10.5194/hess-22-2811-2018
1607-7938
http://dx.doi.org/10.13039/501100000780
http://dx.doi.org/10.13039/501100010198
en
Publisher's version
https://doi.org/10.5194/hess-22-2811-2018
Sí
open
European Geosciences Union