Abstract: An analytic model of three-dimensional radiative transfer is modified to include cloud-cloud interactions and finite surface albedo. The spectrally integrated output is used to derive extinction coefficients for cumulus ...

Abstract: The design of an instrument that sorts raindrops according to fall speed is described. The apparatus consists of two rotating disks, the upper one allowing rain to fall through a slit into collectors on the lower disk. ...

Abstract: Raindrop size distributions are obtained from the Doppler frequency spectrum of an acoustic radar. Number concentrations of 12 drop diameters with a minimum diameter 0.14 cm are obtained and averaged over 3?15 min at 20-m ...

Abstract: Laboratory and airborne observations show that the protective hemispheres of aircraft pyrgeometers are partly covered by water when used in cloud. This cover can reduce the incident longwave flux by as much as 60%. Improved ...

Abstract: No abstract available.

Abstract: The effect of individual charge-modifying processes is tested by following the development joint distributions of raindrop size and charge through a fall depth of 1 km beneath a weakly electrified warm cloud. Evaporation, ...

Abstract: Raindrop collisional breakup is included in a model of joint size-charge distribution development. Consistent with experimental observations the model includes a finite filament (joining separating drops) that upon rupture ...

Abstract: A recent treatment of the dynamic behavior of anemometer hot wires is simplified and used to show that the response of the CSIRO liquid-water hot wire can be described by a second-order differential equation. This is ...

Abstract: An apparatus is described which enables reliable measurement of precipitation charge and size to be made. Design criteria are thoroughly treated and general solutions are provided to all aspects of the problem. The theories ...

Abstract: Measurements of the size and charge on precipitation particles obtained using the apparatus described in Part I are given. Size data are found most frequencly to fit a log-normal distribution, and charge data a normal ...