Research data for: Challenges in measuring the size and velocity of large raindrops: a comparison of selected methods

The deposited data were collected as part of the research project entitled ‘Zjawisko rozbryzgu jako mechanizm transportu mikroorganizmów glebowych’, eng. ‘Splash phenomenon as a mechanism of transportation of soil microorganisms’, financed by the National Science Centre, Poland as part of the project under the OPUS 23 call (project no. 2022/45/B/NZ9/00605). The project is concerned with the quantitative and qualitative description of bacterial transport during the soil splash phenomenon induced by the impact of a raindrops. The accompanying data relate to the characterisation of aspects of falling drops that are the primary driver of splash process and that may affect microbial transport.The research was conducted from March 2024 to June 2024 at the Institute of Agrophysics, Polish Academy of Sciences in Lublin (Poland). The collection contains: 1) the drop characteristics (diameter, velocity) measured by two disdrometers, 2) the drop characteristics (diamater, velocity, shape descriptors) measured by high-speed cameras. The data were compiled on the basis of laboratory tests.The dataset consists of the following files:A) Drop characteristics from disdrometers.zip – data of diameter (A_1.xlsx) and velocity (A_2.xlsx) of falling drops differentiated by the size of the falling drops and the height of their fall. The data were obtained by the Thies Clima Laser Precipitation Monitor (Adolf Thies, Germany) and Parsivel2 (OTT, Germany) disdrometers. A detailed description can be found in the attached file (ReadmeA.txt).B) Drop characteristics from high-speed cameras.zip – data of diameter (B_1.xlsx), velocity (B_2.xlsx and B_5).xlsx) and shape descriptors (B_3.xlsx and B_4 xlsx) of falling drops differentiated by the size of the falling drops and the height of their fall, as well as simulated wind. The data were obtained by the single Phantom Miro M310 high-speed camera (Vision Research, USA) or the set of two Phantom Miro M310 high-speed cameras (Vision Research, USA) combined with particle tracking velocimetry module (PTV). A detailed description can be found in the attached file (ReadmeB.txt).