Journal cover Journal topic
Atmospheric Measurement Techniques An interactive open-access journal of the European Geosciences Union

Journal metrics

  • IF value: 3.089 IF 3.089
  • IF 5-year<br/> value: 3.700 IF 5-year
    3.700
  • CiteScore<br/> value: 3.59 CiteScore
    3.59
  • SNIP value: 1.273 SNIP 1.273
  • SJR value: 2.026 SJR 2.026
  • IPP value: 3.082 IPP 3.082
  • h5-index value: 45 h5-index 45
https://doi.org/10.5194/amt-2018-63
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Research article
12 Mar 2018
Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Atmospheric Measurement Techniques (AMT).
Characteristics of vertical velocities estimated from drop size and fall velocity spectra of a Parsivel disdrometer
Dong-Kyun Kim and Chang-Keun Song School of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology, Ulsan, Korea
Abstract. Vertical air velocities were estimated from drop size and fall velocity spectra observed by Parsivel disdrometers during intensive field observations from 13 June to 3 August 2016 around Mt. Jiri (1915 m above sea level) in the southern Korean Peninsula. Rainfall and wind velocity data measured by Parsivel disdrometers and ultrasonic anemometers, respectively, were analyzed for an orographic rainfall event associated with a stationary front over Mt. Jiri on 1 July 2016. In this study, a new technique was developed to estimate vertical air velocities from drop size and fall velocity spectra measured by the Parsivel disdrometers and investigate characteristics of up-/downdrafts and related microphysics in the windward and leeward side of the mountain.

To validate results from this technique, vertical air velocities between the Parsivel and anemometer were compared and were in quite good agreement each other. It was shown that upward motions were relatively more dominant in the windward side and even during periods of heavy rainfall. On the contrast, downward motions were more dominant in the leeward side even when heavy rain occurred. Occurrences of upward and downward motions were digitized as percentage values as they are divided by the total rainfall period. In the windward (leeward) side, the percentages of upward (downward) motion were larger than those of downward (upward) motion. Rainfall intensity in the leeward side was relatively stronger than in the windward side, suggesting that the increase in rainfall in the leeward side was more affected by the downward motions.

Citation: Kim, D.-K. and Song, C.-K.: Characteristics of vertical velocities estimated from drop size and fall velocity spectra of a Parsivel disdrometer, Atmos. Meas. Tech. Discuss., https://doi.org/10.5194/amt-2018-63, in review, 2018.
Dong-Kyun Kim and Chang-Keun Song
Dong-Kyun Kim and Chang-Keun Song
Dong-Kyun Kim and Chang-Keun Song

Viewed

Total article views: 244 (including HTML, PDF, and XML)

HTML PDF XML Total BibTeX EndNote
201 36 7 244 4 5

Views and downloads (calculated since 12 Mar 2018)

Cumulative views and downloads (calculated since 12 Mar 2018)

Viewed (geographical distribution)

Total article views: 244 (including HTML, PDF, and XML)

Thereof 244 with geography defined and 0 with unknown origin.

Country # Views %
  • 1

Saved

Discussed

Latest update: 23 Apr 2018
Publications Copernicus
Download
Short summary
A new techonique to estimte vertical velocties from partivel measured drop and velocity spectra is developed and the vertical velocities (w) were compared with w-component of winds measured from the anemometer at the same site. They showed quite good agreement each other, suggesting that this technique is quite reliable and applicable to rainfall studies. With these w values, rainfall characteristics related to up/downdraft was investigated in the windward and leeward side of a mountain.
A new techonique to estimte vertical velocties from partivel measured drop and velocity spectra...
Share