Links:
2DVD (2-Dimensional Video Distrometer) |
Description and How They Work:
The 2DVD is an advanced precipitation measurement instrument, of which College of Charleston owns two of four for research in atmospheric science. This optical instrument is composed of two lights that shine through large slits from one corner to the other to meet their respective sensors with about 1 cm of vertical separation between the two planes of light. Rain rate, drop size, fall velocity, diameter and oblateness are measured for the drops that completely pass through the intersecting area of light.
2DVD Data Analysis:
- Rain rate vs. time
- Drop size distribution
- Vertical velocity vs. equivolumetric diameter
- Oblateness vs. diameter
Peer-Reviewed Papers:
- M.L. Larsen and M.Schoenhuber. Identification and characterization of an anomaly in 2-dimensional video disdrometer data. Atmosphere. 9, 315. doi: 10.3390/atmos9080315.
- A.R. Jameson and M.L. Larsen. The variability of rainfall rate as a function of area. Journal of Geophysical Research: Atmospheres 121. doi: 10.1002/2015JD02412
- A.R. Jameson, M.L. Larsen, and A.B. Kostinski. An example of persistent microstructure in a long rain event. Journal of Hydrometeorology 17, 1661--1673. doi: 10.1175/JHM-D-15-0180.1
- M.L. Larsen and K. O'Dell. Sampling variability effects in drop-resolving disdrometer observations. Journal of Geophysical Research: Atmospheres 121. doi: 10.1002/2016JD025491
- A.R. Jameson, M.L. Larsen, and A.B. Kostinski. Disdrometer network observations of finescale spatial-temporal clustering in rain. Journal of the Atmopsheric Sciences 72(4), 1648--1666. doi: 10.1175/JAS-D-14-0136.1
- A.R. Jameson, M.L. Larsen, and A.B. Kostinski. On the variability of drop size distributions over areas. Journal of the Atmospheric Sciences 72(4), 1386--1397. doi: 10.1175/JAS-D-14-0258.1
- M.L. Larsen, A.B. Kostinski, and A.R. Jameson. Further evidence for super-terminal raindrops. Geophysical Research Letters 41(19), 6914--6918. doi: 10.1002/2014GL061397
- M.L. Larsen, A.B. Kostinski, and A. Tokay. Observations and analysis of uncorrelated rain. Journal of the Atmospheric Sciences 62(11), 4071--4083. doi: 10.1175/JAS3583.1
2018
2016
2015
2014
2005
Pictures:
Taken By: Mike Larsen
Taken By: Mike Larsen
A. Kruger and W.F. Krajewski (2002). Journal of Atmospheric and Oceanic Technology, 19, 602—617
Instrument Webpages:
SN074 (First data taken: December 2013)
SN098 (First data taken: May 2017)