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Journal articles on the topic 'Distrometer'

Author: Grafiati

Published: 4 June 2021

Last updated: 15 February 2022

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1

Kinnell, PI. "Rainfall energy in eastern Australia - Intensity kinetic energy relationships for Canberra, ACT." Soil Research 25, no. 4 (1987): 547. http://dx.doi.org/10.1071/sr9870547.

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Rainfall kinetic energy values measured with a Joss-Waldvogel rainfall distrometer near Canberra are reported and compared with other data obtained in Australia using the same measurement technique. Intensity-energy relationships for Canberra are similar to those previously obtained at Gunnedah, N.S.W. and should apply over a wide area of south-eastern Australia.

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2

Joseph, Adéchinan A., Moumouni Sounmaïla, Guédjé K. François, and Houngninou B. Etienne. "Drop Size Distribution and Lightning Manifestations in AMMA-CATH Area." JOURNAL OF ADVANCES IN PHYSICS 19 (September 8, 2021): 204–16. http://dx.doi.org/10.24297/jap.v19i.9102.

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This paper analyses for the first time in tropical area, the relationship between lightning and DSD (Drop Size Distribution) parameters on rainy events that occurred during the monsoon period. The Lightning data used are collected by the LINET (Lightning Detection Network) while the DSD data were recorded by a distrometer. The correlation was computed within five circles of radius varying between to with a step of . These consecutive areas are centered on the position of the disdrometer. By taking into account only the convective spectra and remove out of the data the cases where there is rain

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3

Schönhuber, M., G. Lammer, and W. L. Randeu. "One decade of imaging precipitation measurement by 2D-video-distrometer." Advances in Geosciences 10 (April 26, 2007): 85–90. http://dx.doi.org/10.5194/adgeo-10-85-2007.

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Abstract. The 2D-Video-Distrometer (2DVD) is a ground-based point-monitoring precipitation gauge. From each particle reaching the measuring area front and side contours as well as fall velocity and precise time stamp are recorded. In 1991 the 2DVD development has been started to clarify discrepancies found when comparing weather radar data analyses with literature models. Then being manufactured in a small scale series the first 2DVD delivery took place in 1996, 10 years back from now. An overview on present 2DVD features is given, and it is presented how the instrument was continuously improv

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4

Schönhuber, M., W. L. Randeu, and J. P. V. Poiares Baptista. "Application of the 2D-video-distrometer for weather radar data inversion." Physics and Chemistry of the Earth, Part B: Hydrology, Oceans and Atmosphere 25, no. 10-12 (2000): 1037–42. http://dx.doi.org/10.1016/s1464-1909(00)00149-0.

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5

Marzuki, M., Walter L. Randeu, Michael Sch?nhuber, V. N. Bringi, Toshiaki Kozu, and Toyoshi Shimomai. "Raindrop Size Distribution Parameters of Distrometer Data With Different Bin Sizes." IEEE Transactions on Geoscience and Remote Sensing 48, no. 8 (2010): 3075–80. http://dx.doi.org/10.1109/tgrs.2010.2043955.

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6

Park, Jong-Kil, Eun-Ji Cheon, and Woo-Sik Jung. "Case Study on the Physical Characteristics of Precipitation using 2D-Video Distrometer." Journal of Environmental Science International 25, no. 3 (2016): 345–59. http://dx.doi.org/10.5322/jesi.2016.25.3.345.

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7

Lee, Jeong-Eun, Sung-Hwa Jung, Hong-Mok Park, Soohyun Kwon, Pay-Liam Lin, and GyuWon Lee. "Classification of precipitation types using fall velocity-diameter relationships from 2D-video distrometer measurements." Advances in Atmospheric Sciences 32, no. 9 (2015): 1277–90. http://dx.doi.org/10.1007/s00376-015-4234-4.

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8

Alhilali, Manhal, Jafri Din, Michael Schönhuber, and Hong Yin Lam. "Estimation of Millimeter Wave Attenuation Due to Rain using 2D Video Distrometer Data in Malaysia." Indonesian Journal of Electrical Engineering and Computer Science 7, no. 1 (2017): 164. http://dx.doi.org/10.11591/ijeecs.v7.i1.pp164-169.

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<p>The increasing use of millimeter wave frequency bands requires a good understanding of the atmospheric channel. In equatorial regions, rain plays the central role in the impairment of millimeter wave propagation. Using large amounts of precise data collected by a two-dimensional video distrometer in Malaysia, the rain-specific attenuation of both vertically and horizontally polarized waves at the 38 GHz frequency was computed by applying the T-matrix technique. Good agreement is observed between these computations and fitted power law models from neighboring areas, but the ITU-R Recom

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9

Campistron, Bernard, Gilbert Despaux, and Jean-Pierre Lacaux. "A Microcomputer Data-Acquisition System for Real-Time Processing of Raindrop Size Distribution Measured with the RD69 Distrometer." Journal of Atmospheric and Oceanic Technology 4, no. 3 (1987): 536–40. http://dx.doi.org/10.1175/1520-0426(1987)004<0536:amdasf>2.0.co;2.

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10

Larsen, Michael, and Michael Schönhuber. "Identification and Characterization of an Anomaly in Two-Dimensional Video Disdrometer Data." Atmosphere 9, no. 8 (2018): 315. http://dx.doi.org/10.3390/atmos9080315.

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The two-dimensional video distrometer (2DVD) is a well known ground based point-monitoring precipitation gauge, often used as a ground truth instrument to validate radar or satellite rainfall retrieval algorithms. This instrument records a number of variables for each detected hydrometeor, including the detected position within the sample area of the instrument. Careful analyses of real 2DVD data reveal an artifact—there are time periods where hydrometeor detections within parts of the sample area are artificially enhanced or diminished. Here, we (i) illustrate this anomaly with an exemplary 2

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11

Leijnse, H., and R. Uijlenhoet. "The effect of reported high-velocity small raindrops on inferred drop size distributions and derived power laws." Atmospheric Chemistry and Physics Discussions 10, no. 4 (2010): 9121–51. http://dx.doi.org/10.5194/acpd-10-9121-2010.

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Abstract. It has recently been shown that at high rainfall intensities, small raindrops may fall with much larger velocities than would be expected from their diameters. These were argued to be fragments of recently broken-up larger drops. In this paper we quantify the effect of this phenomenon on raindrop size distribution measurements from a Joss-Waldvogel disdrometer, a 2-D Video Distrometer, and a vertically-pointing Doppler radar. Probability distributions of fall velocities have been parameterized, where the parameters are functions of both rainfall intensity and drop size. These paramet

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12

Teschl, F., W. L. Randeu, M. Schönhuber, and R. Teschl. "Simulation of polarimetric radar variables in rain at S-, C- and X-band wavelengths." Advances in Geosciences 16 (April 9, 2008): 27–32. http://dx.doi.org/10.5194/adgeo-16-27-2008.

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Abstract. Polarimetric radar variables of rainfall events, like differential reflectivity ZDR, or specific differential phase KDP, are better suited for estimating rain rate R than just the reflectivity factor for horizontally polarized waves, ZH. A variety of physical and empirical approaches exist to estimate the rain rate from polarimetric radar observables. The relationships vary over a wide range with the location and the weather conditions. In this study, the polarimetric radar variables were simulated for S-, C- and X-band wavelengths in order to establish radar rainfall estimators for

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13

Leijnse, H., and R. Uijlenhoet. "The effect of reported high-velocity small raindrops on inferred drop size distributions and derived power laws." Atmospheric Chemistry and Physics 10, no. 14 (2010): 6807–18. http://dx.doi.org/10.5194/acp-10-6807-2010.

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Abstract. It has recently been shown that at high rainfall intensities, small raindrops may fall with much larger velocities than would be expected from their diameters. These were argued to be fragments of recently broken-up larger drops. In this paper we quantify the effect of this phenomenon on raindrop size distribution measurements from a Joss-Waldvogel disdrometer, a 2-D Video Distrometer, and a vertically-pointing Doppler radar. Probability distributions of fall velocities have been parameterized, where the parameters are functions of both rainfall intensity and drop size. These paramet

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14

Nagumo, Nobuhiro, and Yasushi Fujiyoshi. "Microphysical Properties of Slow-Falling and Fast-Falling Ice Pellets Formed by Freezing Associated with Evaporative Cooling." Monthly Weather Review 143, no. 11 (2015): 4376–92. http://dx.doi.org/10.1175/mwr-d-15-0054.1.

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Abstract This paper describes a numerical and observational study focused on ice-pellet formation and microphysical properties near 0°C from an ice-pellet-dominated storm associated with an unusually warm and dry atmosphere on 10 April 2005, in Sapporo, Japan. A one-dimensional numerical model simulation indicated that precipitation particle temperatures were sensitive to environmental temperature and relative humidity and close to the wet-bulb temperature. The simulation demonstrated that completely melted snowflakes could refreeze by evaporative cooling. Moreover, initial freezing could be e

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15

Morris, M. P., P. B. Chilson, T. J. Schuur, and A. Ryzhkov. "Microphysical retrievals from simultaneous polarimetric and profiling radar observations." Annales Geophysicae 27, no. 12 (2009): 4435–48. http://dx.doi.org/10.5194/angeo-27-4435-2009.

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Abstract. The character of precipitation detected at the surface is the final product of many microphysical interactions in the cloud above, the combined effects of which may be characterized by the observed drop size distribution (DSD). This necessitates accurate retrieval of the DSD from remote sensing data, especially radar as it offers large areal coverage, high spatial resolution, and rigorous quality control and testing. Combined instrument observations with a UHF wind profiler, an S-band polarimetric weather radar, and a video disdrometer are analyzed for two squall line events occuring

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16

Sansom, John, Michael Schönhuber, Peter Thomson, and Walter L. Randeu. "Enhancing the physical significance of rainfall breakpoints through two-dimensional video distrometer data." Journal of Geophysical Research 113, no. D18 (2008). http://dx.doi.org/10.1029/2007jd008656.

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17

Zhou, Lingli, Xiquan Dong, Zhikang Fu, et al. "Vertical Distributions of Raindrops and Z‐R Relationships Using Microrain Radar and 2‐D‐Video Distrometer Measurements During the Integrative Monsoon Frontal Rainfall Experiment (IMFRE)." Journal of Geophysical Research: Atmospheres 125, no. 3 (2020). http://dx.doi.org/10.1029/2019jd031108.

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18

LIU, XIANTONG, HUIQI LI, SHENG Hu, et al. "A High-precision and Fast Solution Method of Gamma Raindrop Size Distribution based on 0-Moment and 3-Moment in South China." Journal of Applied Meteorology and Climatology, August 30, 2021. http://dx.doi.org/10.1175/jamc-d-21-0043.1.

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AbstractAccording to the high accuracy linear shape-slope (μ-Λ) relationship observed by several 2-Dimensional-Video-Distrometers (2DVD) in South China, a high-precision and fast solution method of gamma (Γ) raindrop size distribution (RSD) function based on the zeroth order moment (M0) and the third order moment (M3) of RSD has been proposed. The 0-moment (M0) and 3-moment (M3) of RSD can be easily calculated from rain mass mixing ratio (Qr) and total number concentration (Ntr) simulated by the two-moment (2M) microphysical scheme, respectively. Three typical heavy rainfall processes and all

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