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RISOn the Estimation of Daily Climatological Temperature Variance
Publisher: American Meteorological Society
Abstract: he climatological daily variance of temperature is sometimes estimated from observed temperatures within a centered window of dates. This method overestimates the true variance of daily temperature when the rate of seasonal ...
Design of Gain-Scheduled Strictly Positive Real Controllers Using Numerical Optimization for Flexible Robotic Systems
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The design of gain-scheduled strictly positive real (SPR) controllers using numerical optimization is considered. Our motivation is robust, yet accurate motion control of flexible robotic systems ...
The Diagnosis of Vertical Motion within Dry Intrusions
Publisher: American Meteorological Society
Abstract: Dry intrusions play an important role in modulating precipitation patterns both in the midlatitudes and in the Tropics. The lifting of unsaturated air aloft often leads to destabilization and the enhancement of precipitation ...
A Numerical Investigation of the Effects of Dry Air Aloft on Deep Convection
Publisher: American Meteorological Society
Abstract: A three-dimensional cloud model was used to investigate the sensitivity of deep convective storms to dry air above the cloud base. In simulations of both quasi-linear convective systems and supercells, dry air aloft was ...
A Machine Learning Optimized Vertical-Axis Wind Turbine
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Vertical-axis wind turbines (VAWTs) have garnered increasing attention in the field of renewable energy due to their unique advantages over traditional horizontal-axis wind turbines (HAWTs). However, traditional VAWTs ...
Environmental Distinctions between Cellular and Slabular Convective Lines
Publisher: American Meteorological Society
Abstract: The organizational mode of quasi-linear convective systems often falls within a spectrum of modes described by a line of discrete cells on one end (?cellular?) and an unbroken two-dimensional swath of ascent on the other ...
Bow Echo Sensitivity to Ambient Moisture and Cold Pool Strength
Publisher: American Meteorological Society
Abstract: Bow echo development within quasi-linear convective systems is investigated using a storm-scale numerical model. A strong sensitivity to the ambient water vapor mixing ratio is demonstrated. Relatively dry conditions at ...
A Reexamination of the Mechanisms Responsible for Banded Precipitation
Publisher: American Meteorological Society
Abstract: The processes responsible for a banded snowfall region during a December 1997 East Coast storm are examined. Conventional data plus a numerical simulation with the fifth-generation Pennsylvania State University?NCAR Mesoscale ...
Mass Conservation and the Anelastic Approximation
Publisher: American Meteorological Society
Abstract: Numerical anelastic models solve a diagnostic elliptic equation for the pressure field using derivative boundary conditions. The pressure is therefore determined to within a function proportional to the base-state density ...
Improving Mission Assurance Assessments for Resilience of Military Installations
Publisher: ASCE
Abstract: It is critical to improve the resilience of military installations and their complex infrastructure systems to strengthen response to the uncertainty and threat driven by the increasing frequency and severity of natural ...