Ice crystal terminal velocities.

摘要: Abstract Terminal velocities of different ice crystal forms were calculated using the most recent drag coefficients, aspect ratios and densities. The equations derived primarily for use in calculating precipitation rates by sampling particles with an aircraft cirrus clouds, determining particle size clouds Doppler radar. However, are sufficiently general terminal velocity at any altitude, type. Two sets derived. “general” provide a good estimate altitude. “specific” set 1000 mb. calculations agreement measurements. results from present study also compared to prior others seem give more reasonable results, particularly higher altitudes.