ld

A laser disdrometer (LDIS) measures the drop size spectra and fall velocity of hydrometeors during precipitation events. The passage of hydrometeors through a horizontal area positioned between an eye-safe laser and an array detector results in blockage of the laser beam in proportion to the size of the drop or particle. In addition to drop/particle size and fall speed, precipitation type is classified.

ARM also deploys video disdrometers (VDIS).

Fall velocity calculated after Lhermite

Southern Great Plains - Lamont, OK (Extended and Co-located with C1)

• Latitude: 36.604937
• Longitude: -97.485561
• Publication Date: 2016-11-04
• Start Date: 2016-11-04
• End Date: 2023-09-29
• Last Updated: 2024-06-09

https://www.arm.gov/connect-with-arm/organization/instrument-mentors/list#ldis

Die Wang

Brookhaven National Laboratory

https://doi.org/10.5439/1973058
Atmospheric Radiation Measurement (ARM) user facility. 2016. Laser Disdrometer (LD). 2016-11-04 to 2023-09-29, Southern Great Plains (SGP) Lamont, OK (Extended and Co-located with C1) (E13). Compiled by D. Wang, M. Bartholomew, Z. Zhu and Y. Shi. ARM Data Center. Data set accessed at http://dx.doi.org/10.5439/1973058.