Browsing Atmospheric sciences by Title
Now showing items 170-189 of 312
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O3 photochemistry in the western US: mixing wildfire smoke with urban emissions
Ozone (O3) is a respiratory irritant and is hazardous to human health. O3 pollution is prevalent in urban areas but is also influenced by the transport of wildfire smoke. When wildfire smoke mixes with urban emissions, ... -
Objective quantification of convective clustering observed during the AMIE/DYNAMO 2-day rain episodes
One critical bottleneck in developing and evaluating ways to represent the mesoscale organization of convection in cumulus parameterization schemes is that there is no single accepted method of objectively quantifying the ... -
An observational and modeling study of a heavy orographic precipitation event over the Oregon Cascades
(2005)During 13--14 December 2001, a comprehensive set of observations over the central Oregon Cascades was collected as part of the IMPROVE-2 field project, permitting an unprecedented opportunity for the investigation of a ... -
An observational and numerical study of windstorms along the western side of the Washington Cascade Mountains
(1997)This dissertation investigates western Washington Cascade windstorms by utilizing various data sources such as conventional synoptic observations, profilers on both sides of the Cascade Mountains, a WSR-88D Doppler radar ... -
Observational Constraints on Tropospheric Chlorine Cycling
The multiphase photochemical cycling of chlorine has a widespread influence on the chemical composition of the troposphere, affecting climate, the oxidant budget, acid deposition to the biosphere, and the chemistry of ... -
An observational study of atmosphere-ocean interactions in the northern oceans on interannual and interdecadal time-scale
(1996)This study focuses on the air-sea interactions over the northern oceans from an observational point of view. Atmosphere-ocean interactions exhibit a strong seasonality in both the North Pacific and the North Atlantic. In ... -
An observational study of the tropical tropospheric circulation
(2005)This observational study focuses on four different aspects of the general circulation of the tropical troposphere: the seasonality of the mean meridional circulation (MMC), the zonal momentum balance of the tropical ... -
Observations of tropical cirrus by elastic backscatter lidars and the development of a cloud and aerosol retrieval algorithm for Raman lidars
Tropical cirrus cloud properties from elastic backscatter lidars--- namely the Atmospheric Radiation Measurement (ARM) program's ground-based micropulse lidars (MPL) and the spaceborne Cloud-Aerosol Lidar Infrared Pathfinder ... -
Observed and Modeled Cloud Responses to Climate Variability
Clouds play a significant role in the Earth’s climate, yet cloud feedbacks remain one of the largest sources of inter-model spread in climate predictions. Studying how clouds respond to internal modes of climate variability ... -
Ocean Heat Transport and the Width of the Hadley Circulation in an Aquaplanet GCM
Despite decades of research, the fundamental dynamics that govern the width of the Hadley circulation (HC) remain an active area of investigation. This study seeks to further theoretical understanding of HC width and of ... -
Oceanic latent heat flux from satellite data
(1998)This thesis presents a new method of estimating ocean latent heat flux (LHF) using satellite data. The surface layer equations derived from Monin-Obukhov similarity theory are closed with empirical parameterizations, and ... -
On the annual cycle over the atlantic sector: the relative role of land and ocean
(2003)This study investigates how local and remote forcings shape the annual cycle of surface temperature and precipitation in the tropical Atlantic ocean, Africa, and South America.We use an atmospheric general circulation model ... -
On the Evolution of Stratocumulus in the Subtropical Oceans: Modelling Challenges and Transitions in Cellular Organization from a Lagrangian Framework
University of Washington Abstract On the Evolution of Stratocumulus in the Subtropical Oceans: Modelling Challenges and Transitions in Cellular Organization from a Lagrangian Framework Ryan Eastman Chair of the Supervisory ... -
On the Influence of Poleward Jet Shift on Shortwave Cloud Feedback in Global Climate Models
Experiments designed to separate the effect of atmospheric warming from the effect of shifts of the eddy-driven jet on shortwave (SW) cloud feedback are performed with three global climate models (GCMs). In each model a ... -
On the interactions between clouds and atmospheric circulation in the tropics and midlatitudes
Cloud radiative feedbacks are the largest source of uncertainty in climate projections. It has been shown that narrowing this uncertainty will require a better understanding of the two-way interactions between clouds and ... -
On the maintenance of blocking anticyclones in a general circulation model
(1985)Blocking anticyclones that appear in perpetual January simulations of a general circulation model are examined. Blocks in three geographical regions are studied: the North Pacific, the North Atlantic and Western North ... -
On the mechanism of the large-scale seasonally varying upwelling in the region of the tropical tropopause
(1997)This work investigates the physical mechanisms that determine the large-scale upwelling through the tropical tropopause, one of the principal components of stratosphere-troposphere mass exchange. The global-scale mean ... -
On the Nature of Optically-Thin Low Clouds over Land and Ocean
(2012-09-13)University of Washington Abstract On the Nature of Optically-Thin Low Clouds over Land and Ocean Louise V. Leahy Chair of the Supervisory Committee: Professor Robert Wood Atmospheric Sciences This work describes macrophysical ... -
On the nature of severe orographic thunderstorms near the Andes in subtropical South America
Identifying common features and differences between the mechanisms producing extreme convection near major mountain ranges of the world is an essential step toward a general understanding of orographic precipitation on a ... -
On the nature of the atmospheric cloud radiative effect and its impact on tropical convection
Tropical high clouds have been shown to converge radiant energy within the atmosphere. We term this phenomenon the Atmospheric Cloud Radiative Effect (ACRE). The addition of energy unequally in space and time has profound ...