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Abstract: The original statistical evaluation of the South African hygroscopic flare seeding experiment described by Mather et al. focused on the amount of radar-estimated rain produced by randomly seeded and unseeded convective ...

Abstract: During the past decade, statistically positive results have been reported for four major, randomized hygroscopic seeding experiments, each in a different part of the world. Experiments on cold convective clouds using ...

Abstract: The needs of weather modification are examined from the vantage point of a manager, from the Federal sector, of applied research and development in precipitation management. Several problems in the perspective with which ...

Abstract: The scientific evidence for enhancing rainfall from convective clouds by static?mode and dynamic?mode seeding with glaciogenic agents is examined and critically assessed. The assessment uses, as a measure of proof of ...

Abstract: The effect of instrument baseline averaging on the estimated spectrum density of a homogeneous random field of a scalar variable in turbulent flow is investigated. The spectrum transfer function of the spatial filter is ...

Abstract: A randomized, warm-rain enhancement experiment was carried out during 1995?98 in the Bhumibol catchment area in northwestern Thailand. The experiment was conducted in accordance with a randomized, floating single?target ...

Abstract: A time-dependent, one-dimensional model of the life cycle of an isolated warm cumulus cloud is presented that combines the vertical equation of motion, the equation of mass continuity, the first law of thermodynamics, and ...

Abstract: A two-dimensional Eulerian model of warm fog dispersal by airborne hygroscope particle seeding is used to evaluate some practical aspects of urea seeding at airports. It is found that although turbulence and wind shear ...

Abstract: A numerical model has been developed which simulates the modification of warm fog caused by the condensation-coalescence growth of monodispersed hygroscopic particles introduced into the top of a fog layer. With this model, ...