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2D 视频雨滴谱仪

2D 视频雨滴谱仪
  • 发布时间: 2018-11-14 09:34
  • 发布人:
  • 点击量: 2183

 用途

国际上最先进的降水粒子测量设备,此设备可以实时测量单个降水粒子(如,雨、雪、雹等)的大小、形状、聚合状态、方向和降落速度等。通过设备软件,还可以计算降水率、降水量和降水粒子谱等。这些数据是充分理解大气降水过程的关键要素,是研究和标定云雷达、降水雷达的必备工具,适用于气象和环境、电信和波传播、工业应用等领域。 

图片42.png 

原理

传感器是由摄像头和背光源组成,摄像头将对测量区域的图像进行线形扫描,将采集区域内的图像传输到电子单元内处理存储,然后用专业配套软件进行一系列分析。 

图片43.png 

三 组成

设备由测量单元、笔记本电脑、供电单元三部分构成。

产品特点

每个雨滴的前视图

每个雨滴的侧视图

垂直降落速度

每个粒子的时间戳

雨滴直径

估计雨滴的水平速度

3D重建成为可能

降雨率与时间图

雨滴粒子分布图

垂直速度与等量直径图

扁率与直径图

评估单个降水粒子相态组成(固态、液态、融化、冰冻等)

最小粒子分辨能力可达0.17mm,无最大粒子尺度限制

时间戳最高分辨率达18μs

 

软件主屏幕

图片44.png 

单个粒子图

图片45.png 

降雨率与时间图

图片46.png

垂直速度与等量直径图

图片47.png

雨滴水平速度图

图片48.png

垂直速度与等量直径分布图

图片49.png

五 技术参数

垂直方向分辨率:优于0.17 mm,veloc. < 10 m/s

垂直速率准确性:优于4 %,veloc. < 10 m/s

采样区域面积:100×100 mm2

尺寸:960 mm × 960 mm × 890 mm

测量单元与电脑最远距离:100 m

电脑功率:600 W

应用领域

图片50.png 

应用案例

 

极端气候条件下应用2DVD观测降雪数据 

参考文献

Measurements of Precipitation Characteristics by a New Distrometer

M.Schönhuber1), H.E.Urban1), J.P.V.Poiares Baptista2), W.L.Randeu3) and W.Riedler 3)

1) Institute for Applied Systems Technology, JOANNEUM RESEARCH, Graz/Austria

2) ESA/ESTEC (XEP), Noordwijk, The Netherlands

3) Institute of Communications and Wave Propagation, Technical University Graz/Austria

 

2D VIDEO DISDROMETER: A STUDY OF DIFFERENT CLIMATIC REGIMES

YARITZA MEJIAS-ROLON

Undergraduate Student

University of Puerto Rico at Mayagűez

Mayagűez, Puerto Rico

DR. V.N. BRINGI

Professor

Colorado State University

Fort Collins, Colorado

 

An example of computational approach used for aerodynamic design of a rain Disdrometer Un exemple de méthode de calcul utilisée pour le dessin aérodynamique d’un disdromètre de pluie

EMAD HABIB, Graduate Research Assistant, Iowa Institute of Hydraulic Research, The University of Iowa, Iowa City, IA, 52242 USA

WITOLD F. KRAJEWSKI, Professor, Iowa Institute of Hydraulic Research, The University of Iowa, Iowa City, IA, 52242 USA

 

WEATHER RADAR VERSUS 2D-VIDEO-DISTROMETER DATA

M. Schönhuber1), H.E. Urban1), J.P.V. Poiares Baptista2), W.L. Randeu3) and W. Riedler3)

1) Institute for Applied Systems Technology, JOANNEUM RESEARCH, Graz/Austria

2) ESA/ESTEC (XEP), Noordwijk, The Netherlands

3) Institute of Communications and Wave Propagation, Technical University Graz/Austria

 

OBSERVATIONS OF WINTER STORMS WITH 2-D VIDEO DISDROMETER AND POLARIMETRIC RADAR

Kyoko Ikeda*, Edward A. Brandes, and Guifu Zhang

National Center for Atmospheric Research, Boulder, Colorado

Real-time measurements and analyses of precipitation micro-structure and dynamics W. L. Randeu1,2, M. Sch¨onhuber1, and G. Lammer1

1Institute of Applied Systems Technology, Joanneum Research GmbH, Graz/Austria

2Institute of Communications and Wave Propagation, Technical University Graz, Austria

 

DROP SIZE DISTRIBUTIONS IN OKINAWA, JAPAN, FROM 2D-VIDEO DISTROMETER AND C-BAND POLARIMETRIC RADAR

V.N. Bringi (1), K. Nakagawa (2), M. Thurai (1,2), H. Hanado (2), T. Iguchi (2)

Colorado State University, (2) Communications Research Laboratory, Japan

(thurai@crl.go.jp/fax: +1-970-491-2249)

 

Investigation of rainfall microstructure and variability using vertically pointing radar and disdrometer M. Diederich1, S. Crewell1, C. Simmer1, and R. Uijlenhoet2

1Meteorological Institute University of Bonn

2Department of Environmental Sciences Wageningen University

 

Z-R (Radar Reflectivity-Rain rate) relationships derived from Czech Distrometer data

Fiˇser

Institute of Atmospheric Physics, AS CR, Bocni II, 1401, 141 31 Prague, Czech Republic

 

A Method For Estimating Rain Rate And Drop Size Distribution From Polarimetric Radar Measurements

Guifu Zhang, J. Vivekanandan, and Edward Brandes

National Center for Atmospheric Research

Research Application Program

P. O. Box 3000, Boulder, Colorado 80307

Tel: 303-497-8402, Fax: 303-497-8401

 

Sensitivity of 5-cm Wavelength Polarimetric Radar Variables to Raindrop Axial Ratio and Drop Size Distribution

T. D. KEENAN

Bureau of Meteorology Research Centre, Melbourne, Victoria, Australia

L. D. CAREY

Colorado State University, Fort Collins, Colorado

D. S. ZRNIC´

NOAA/National Severe Storms Laboratory, Norman, Oklahoma

P. T. MAY

Bureau of Meteorology Research Centre, Melbourne, Victoria, Australia

(Manuscript received 16 November 1999, in final form 11 May 2000)

 

Spurious power-law relations among rainfall and radar parameters By A. R. JAMESON1¤ and A. B. KOSTINSKI

1RJH Scienti. c, Inc., USA

2Michigan Technological University, USA

(Received 3 March 2001; revised 21 January 2002)

 

EXPERIMENTAL AND NUMERICAL STUDIES OF SMALL-SCALE RAINFALL MEASUREMENTS AND VARIABILITY

W. F. Krajewski, A. Kruger and V. Nespor Iowa Institute of Hydraulic Research, The University of Iowa, Iowa City, Iowa 52242, USA

 

NOTES AND CORRESPONDENCE When is Rain Steady

R. JAMESON RJH Scientific, Inc., El Cajon, California B. KOSTINSKI

Department of Physics, Michigan Technological University, Houghton, Michigan 24 November 2000 and 27 July 2001 


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