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RISGlaciogenic Seeding of Cold-Season Orographic Clouds to Enhance Precipitation: Status and Prospects
Publisher: American Meteorological Society
Abstract: This essay is intended to provide stakeholders and news outlets with a plain-language summary of orographic cloud seeding research, new capabilities, and prospects. Specifically, we address the question of whether a widely ...
Estimating Microphysics Properties in Ice-Dominated Clouds from Airborne Ka–W-band Dual-Wavelength Ratio Reflectivity Factor in Close Proximity to In Situ Probes
Publisher: American Meteorological Society
Abstract: Properties of frozen hydrometeors in clouds remain difficult to sense remotely. Estimates of number concentration, distribution shape, ice particle density, and ice water content are essential for connecting cloud processes ...
Dependence of Ice Crystal Size Distributions in High Ice Water Content Conditions on Environmental Conditions: Results from the HAIC-HIWC Cayenne Campaign
Publisher: American Meteorological Society
Abstract: A new method that automatically determines the modality of an observed particle size distribution (PSD) and the representation of each mode as a gamma function was used to characterize data obtained during the High Altitude ...
Precipitation Growth Processes in the Comma-Head Region of the 7 February 2020 Northeast Snowstorm: Results from IMPACTS
Publisher: American Meteorological Society
Abstract: On 7 February 2020, precipitation within the comma-head region of an extratropical cyclone was sampled remotely and in situ by two research aircraft, providing a vertical cross section of microphysical observations and ...
Vertical Motions in Orographic Cloud Systems over the Payette River Basin. Part III: An Evaluation of the Impact of Transient Vertical Motions on Targeting during Orographic Cloud Seeding Operations
Publisher: American Meteorological Society
Abstract: In Part II, two classes of vertical motions, fixed (associated with vertically propagating gravity waves tied to flow over topography) and transient (associated primarily with vertical wind shear and conditional instability ...
Vertical Motions in Orographic Cloud Systems over the Payette River Basin. Part II: Fixed and Transient Updrafts and Their Relationship to Forcing
Publisher: American Meteorological Society
Abstract: Updrafts in wintertime cloud systems over mountainous regions can be described as fixed, mechanically driven by the terrain under a given ambient wind and stability profile (i.e., vertically propagating gravity waves tied ...
Vertical Motions in Orographic Cloud Systems over the Payette River Basin. Part I: Recovery of Vertical Motions and Their Uncertainty from Airborne Doppler Radial Velocity Measurements
Publisher: American Meteorological Society
Abstract: Vertical motions over the complex terrain of Idaho’s Payette River basin were observed by the Wyoming Cloud Radar (WCR) during 23 flights of the Wyoming King Air during the Seeded and Natural Orographic Wintertime Clouds: ...