Open AccessScattering of fogs and clouds of the lower tier
Author(s) -
Kh.M. Kalov,
Ruslan Kh. Kalov
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/840/1/012028
Subject(s) - fog , visibility , environmental science , volume (thermodynamics) , meteorology , materials science , atmospheric sciences , debris , geology , physics , thermodynamics
The paper presents the results of numerical modeling of active effects on warm fogs and clouds of the lower tier, as well as the results of field experiments on the creation of illumination zones in these fogs and clouds (increasing the meteorological visibility range (MVR)). A cylindrical volume filled with a combustible composition of high calorific value with a highly dispersed powder of calcium carbide was used as a heat source (exposure model). When the heat source is triggered, 104 kcal kg -1 of the fuel composition is released. Numerical modeling has shown that after 5–6 seconds after the thermal source is triggered, the MVR increases to 2 km (from the initial 50 m). Field experiments have shown an increase in the MVR by 5–50 or more times at different values of the meteorological parameters of fogs and clouds of the lower tier.