Index Catalog // ScholarsArchive@OSU

Modeled and observed longwave radiances at the top of the atmosphere

Creator:: Stone, Kenneth A.
Abstract:: One method of estimating the longwave radiative heating of the atmosphere is to combine satellite observations of emitted radiances with those computed from synoptic temperature and humidity profiles. Modeled and observed radiances are brought into agreement by altering cloud properties or even by adjusting the temperature and water vapor profiles....
Resource Type:: Masters Thesis
Full Text:: supported by NASA ERBE NAS1-18992. I would like to thank my major professor, Dr. James A. Coakley, for his

A complex signal to noise problem : determining the aerosol indirect effect from observations of ship tracks in AVHRR data

Creator:: Walsh, Christopher D.
Abstract:: Cloud reflectivity is a function of cloud liquid water content and droplet number concentration. Since cloud droplets form around pre-existing aerosol particles, cloud droplet number concentration depends on the availability of particles that can serve as cloud condensation nuclei. Given constant liquid water amount, increased availability of cloud condensation nuclei...
Resource Type:: Masters Thesis
Full Text:: Abstract A James A. Coakley, Jr. Cloud reflectivity/i a function of cloud liquid water content and

Properties of marine stratus and stratocumulus derived using collocated MODIS and CALIPSO observations

Creator:: Hayes, Christopher R.
Abstract:: Adiabatic parcel models suggest specific relationships between cloud thickness and cloud properties. Such relationships govern cloud radiative forcing and thus cloud feedbacks in the climate system. Current remote sensing techniques work well at measuring these properties in low-level cloud systems that are overcast. Significant biases exist, however, when measuring cloud...
Resource Type:: Masters Thesis
Full Text:: MODIS and CALIPSO Observations. Abstract approved: James A. Coakley, Jr

Toward the estimation of errors in cloud cover derived by threshold methods

Creator:: Chang, Fu-Lung
Abstract:: The accurate determination of cloud cover amount is important for characterizing the role of cloud feedbacks in the climate system. Clouds have a large influence on the climate system through their effect on the earth's radiation budget. As indicated by the NASA Earth Radiation Budget Experiment (ERBE), the change in...
Resource Type:: Masters Thesis
Full Text:: Errors in Cloud Cover Derived by Threshold Methods Abstract appr James A. Cokley, Jr. The accurate

Using ship tracks to characterize the effects of haze on cloud properties

Creator:: Segrin, Matthew S.
Abstract:: 1-km MODIS observations of ship tracks off the west coast of the U.S. are used to characterize changes in cloud visible optical depths, cloud droplet radii, cloud cover fraction, and column cloud liquid water amount as low-level marine clouds respond to particle pollution from underlying ships. This study re-examines the...
Resource Type:: Masters Thesis
Full Text:: : _____________________________________________________________________ James A. Coakley, Jr. 1-km MODIS observations of ship tracks off the west coast of the U.S

Properties of low-level marine clouds as deduced from advanced very high resolution radiometer satellite observations

Creator:: Chang, Fu-Lung
Abstract:: A radiation model was developed for retrieving cloud visible optical depth, droplet effective radius, and cloud top emission temperature using AVHRR satellite observations at 0.63, 3.7, and 11 μm. The model was used to determine the sensitivity of the retrieved properties to various approximations often employed in such retrievals. Droplet...
Resource Type:: Dissertation
Full Text:: Professor, James A. Coakley, Jr., for his invaluable guidance, generous support, and constant encouragement

Effects of solar heating on the indirect effect of aerosols as deduced from observations of ship tracks

Creator:: Christensen, Matthew W.
Abstract:: One kilometer Moderate Resolution Imaging Spectroradiometer (MODIS) observations for Terra (morning) and Aqua (afternoon) satellites were used to follow the morning to afternoon evolution of marine stratocumulus clouds that were affected by ship stack exhaust. The observations covered the summer months of 2002-2003 and August 2007 for marine layers off...
Resource Type:: Masters Thesis
Full Text:: : _____________________________________________________________________ James A. Coakley, Jr. One kilometer Moderate Resolution Imaging Spectroradiometer (MODIS

Properties of semitransparent upper-level clouds deduced from multispectral imagery data

Creator:: Lin, Xijian
Abstract:: A multispectral retrieval method is developed on the 100 km regional scale to extract the temperature, particle size, fractional cover and 11-μm emissivity of clouds which may be semitransparent in the infrared based on emitted radiances. The scheme utilizes the nonlinear relationship between emitted radiances when clouds are semitransparent and...
Resource Type:: Dissertation
Full Text:: Privacy Redacted for privacy ACKNOWLEDGMENTS I am deeply indebted to my major professor, Dr. James A

Overestimation of cloud cover in the MODIS cloud product

Creator:: Schuetz, Andrea M.
Abstract:: The operational processing of MODIS imagery to produce the MOD06 cloud product is based on the assumption that cloudy 1-km pixels are overcast. This assumption is examined using a partly cloudy pixel retrieval scheme, which allows for fractional cloud cover within the 1-km pixels. Cloud flags attached to 250-m MODIS...
Resource Type:: Masters Thesis
Full Text:: : _____________________________________________________________________ James A. Coakley, Jr. The operational processing of MODIS imagery to produce the MOD06

Biases in droplet radii and optical depths of marine stratocumulus retrieved from MODIS imagery

Creator:: Boeke, Robyn C.
Abstract:: The 2007 Intergovernmental Panel on Climate Change assessment established that the effect of clouds on climate contributes the largest uncertainty in predicting the future climate. Satellite observations provide an opportunity for learning about the behavior of clouds. This thesis seeks to assess the accuracy of cloud properties retrieved from multispectral...
Resource Type:: Masters Thesis
Full Text:: from MODIS Imagery. Abstract approved: James A. Coakley, Jr. The 2007

The spatial-scale dependence of the observed anisotropy of reflected and emitted radiation

Creator:: Ye, Qian
Abstract:: The Earth Radiation Budget Experiment (ERBE) uses Angular Dependence Models (ADMs) to convert satellite observed radiances to radiative fluxes at the top of the atmosphere. Owing to errors in scene identification and to the relationship between the spatial scales of cloud systems and the spatial resolution of the ERBE scanner,...
Resource Type:: Dissertation
Full Text:: Redacted for Privacy ACKNOWLEDGMENTS I am deeply indebted to my major professor, Dr. James A. Coakley

INDOEX aerosol optical depths and radiative forcing derived from AVHRR

Creator:: Tahnk, William Richard
Abstract:: The Indian Ocean Experiment (INDOEX) had as a primary objective determining the radiative forcing due to anthropogenic aerosols over climatologically significant space and time scales: the Indian Ocean during the winter monsoon, January-March. During the winter monsoon, polluted, low-level air from the Asian subcontinent blows over the Arabian Sea and...
Resource Type:: Dissertation
Full Text:: Optical Depths and Radiative Forcing Derived From A \TIJDD Abstract James 14'Coakley, Jr. The Indian

Modeling and application of multispectral oceanic sun glint observations

Creator:: Luderer, Gunnar
Abstract:: The atmospheric radiative transfer model MOCARAT was developed and is presented in this thesis. MOCARAT employs a Monte Carlo Technique for the accurate modeling of band radiances and reflectances in an atmospheric system with a ruffled ocean surface as a lower boundary. The atmospheric radiative transfer is modeled with consideration...
Resource Type:: Masters Thesis
Full Text:: to express my sincere gratitude to Prof. James A. Coakley, Jr. for the opportunity to work in his

Identification of layered cloud occurrences from the Lidar In-Space Technology Experiment and advanced very high resolution radiometer imagery

Creator:: Stevermer, Amy J.
Abstract:: Realistic assessment of the vertical distribution of clouds, particularly the occurrence of multi-layered systems, is critical for accurate calculations of radiative transfer in general circulation models. Such information is also useful in the design and improvement of satellite retrieval techniques. Current methods for retrieving cloud properties from satellite data assume...
Resource Type:: Masters Thesis
Full Text:: Tremendous thanks to: My advisor, Dr. James A. Coakley, Jr., for his guidance and support throughout this

Satellite infrared measurement of sea surface temperature : empirically evaluating the thin approximation

Creator:: Kowalski, Andrew S.
Abstract:: Satellite technology represents the only technique for measuring sea surface temperatures (SSTs) on a global scale. SSTs are important as boundary conditions for climate and atmospheric boundary layer models which attempt to describe phenomena of all scales, ranging from local forecasts to predictions of global warming. Historical use of infrared...
Resource Type:: Masters Thesis
Full Text:: Approved: . James A. Coakley, Jr. Satellite technology represents the only technique for measuring sea

Improved determination of cloud-free radiances for oceans

Creator:: Burden, Arthur R.
Abstract:: Improvements have been made to the spatial coherence method for automatically determining cloud-free ocean radiances in satellite imagery by incorporating the spectral signatures of reflecting surfaces. The spatial coherence method relies on the fact that small-scale cloud-free regions typically exhibit uniform emission and uniform reflection. While small-scale overcast regions typically...
Resource Type:: Masters Thesis
Full Text:: under the supervision of my advisor, Dr. James Coakley, Jr. Without his support and confidence, I would

Effects of aerosols on the properties of deep convective clouds

Creator:: Brown, Daniel A.
Abstract:: Aerosols are tiny particles that serve as nuclei for cloud droplet and ice crystal formation. Increases in aerosol concentration lead to clouds with smaller but more numerous droplets. Some recent studies have found evidence that ice crystal size in deep convective clouds is also reduced by elevated aerosol concentrations. In...
Resource Type:: Masters Thesis
Full Text:: Aerosols on the Properties of Deep Convective Clouds Abstract approved: James A

Response of marine stratus to successive polluting events by ships

Creator:: Sechrist, B.
Abstract:: Ship tracks have proven to be an ideal laboratory for studying the response of marine stratocumulus to an increase in aerosol pollution. Here the response of already polluted marine stratocumulus to further pollution was examined by studying the clouds where two ship tracks cross. 78 crossings of ship tracks were...
Resource Type:: Masters Thesis
Full Text:: : UResponse of Marine Stratus to Successive Polluting Events by Ships. Abstract approved: James A

Aerosol optical depth and direct radiative forcing for INDOEX derived from AVHRR: Observations, January–March 1996–2000

Creator:: Tahnk, William R. and Coakley, James A., Jr.
Abstract:: Visible and near infrared reflectances from NOAA-14 Advanced Very High Resolution Radiometer (AVHRR) daytime passes are used to derive optical depths at 0.55 μm, an index of aerosol type, continental or marine, and the direct effect of the aerosol on the top of the atmosphere and surface solar radiative fluxes...
Resource Type:: Article
Full Text:: for INDOEX derived from AVHRR: Observations, January–March 1996–2000 William R. Tahnk and James A

Biases in Earth radiation budget observations, Part II: Consistent scene identification and anisotropic factors

Creator:: Ye, Qian and Coakley, James A., Jr.
Abstract:: Simple threshold scene identification methods are developed to reduce the effects of errors in scene identifications on the anisotropy of reflected and emitted radiances inferred from Earth Radiation Budget Experiment (ERBE) scanner observations. The ERBE maximum likelihood estimate (MLE) scene identification is assumed to be accurate for nadir fields of...
Resource Type:: Article
Full Text:: identification and anisotropic factors Qian Ye • and James A. Coakley Jr. College of Oceanic and Atmospheric

Improved Calibration Coefficients for NOAA-12 and NOAA-15 AVHRR Visible and Near-IR Channels

Creator:: Tahnk, William R. and Coakley, James A. Jr.
Abstract:: A time history of the calibration coefficients for channels 1 and 2 of the Advanced Very High Resolution Radiometer (AVHRR) on the NOAA-12 and NOAA-15 spacecraft is presented. The history is based on reflectances observed for the interior zones of the Antarctic and Greenland ice sheets previously obtained with the...
Resource Type:: Article
Full Text:: . TAHNK AND JAMES A. COAKLEY JR. College of Oceanic and Atmospheric Sciences, Oregon State University

Relationships between Marine Stratus Cloud Optical Depth and Temperature: Inferences from AVHRR Observations

Creator:: Chang, Fu-Lung and Coakley, James A., Jr.
Abstract:: Studies using International Satellite Cloud Climatology Project (ISCCP) data have reported decreases in cloud optical depth with increasing temperature, thereby suggesting a positive feedback in cloud optical depth as climate warms. The negative cloud optical depth and temperature relationships are questioned because ISCCP employs threshold assumptions to identify cloudy pixels...
Resource Type:: Article
Full Text:: , Virginia JAMES A. COAKLEY JR. College of Oceanic and Atmospheric Sciences, Oregon State University

Limits to the Aerosol Indirect Radiative Effect Derived from Observations of Ship Tracks

Creator:: Coakley, James A., Jr. and Walsh, Christopher D.
Abstract:: One-kilometer Advanced Very High Resolution Radiometer (AVHRR) observations of the effects of ships on low-level clouds off the west coast of the United States are used to derive limits for the degree to which clouds might be altered by increases in anthropogenic aerosols. As ships pass beneath low-level clouds, particles...
Resource Type:: Article
Full Text:: Indirect Radiative Effect Derived from Observations of Ship Tracks JAMES A. COAKLEY JR. AND CHRISTOPHER D

Biases in Earth radiation budget observations: 1. Effects of scanner spatial resolution on the observed anisotropy

Creator:: Ye, Qian and Coakley, James A.
Abstract:: The Earth Radiation Budget Experiment (ERBE) used angular direction models (ADMs) to convert satellite scanning radiometer measurements to radiative fluxes at the top of the atmosphere. The ADMs were assumed to depend only on the physical characteristics of the scene being observed, and they were taken to be independent of...
Resource Type:: Article
Full Text:: scanner spatial resolution on the observed anisotropy Qian Ye I and James A. Coakley Jr. College of

Modified VLSI designs for error correction codes

Creator:: Chen, Lupin
Abstract:: Nowadays, error correction codes have become an integral part in almost all the modern digital communication and storage systems. With the continuously increasing demands for higher speed and lower power communication systems, efficient VLSI implementations of those error correction codes have great importance for practical applications. In this thesis, several...
Resource Type:: Masters Thesis
Full Text:: presentations. I would like to thank Dr. Huaping Liu, Dr. Thomas K. Plant, and Dr. James A. Coakley, Jr. for

Multiple antenna techniques for pulse-based ultra-wideband system

Creator:: Vemulapalli, Sudheer
Abstract:: fIndoor wireless local area networks (LAN's) and personal area networks (PAN’s) have evolved very rapidly in the recent past. The indoor wireless LAN's are mainly dominated by narrow-band technologies like the IEEE 802.11a,b which are short range and provide data rates of 1 Mbps to 54 Mbps. The Bluetooth has...
Resource Type:: Masters Thesis
Full Text:: Dr.James A. Coakley Jr., for sparing the time to serve on my defense com- mittee. I thank Ferne and all

Revisiting output coding for sequential supervised learning

Creator:: Hao, Guohua
Abstract:: Markov models are commonly used for joint inference of label sequences. Unfortunately, inference scales quadratically in the number of labels, which is problematic for training methods where inference is repeatedly preformed and is the primary computational bottleneck for large label sets. Recent work has used output coding to address this...
Resource Type:: Masters Thesis
Full Text:: converting a problem with many labels to a set of problems with binary labels. Models were independently

Retrieval of Cloud Properties for Partly Cloudy Imager Pixels

Creator:: Coakley, James A. Jr., Friedman, Michael A., and Tahnk, William R.
Abstract:: Retrievals of cloud properties from satellite imagery often invoke the assumption that the fields of view are overcast when cloud-contaminated, even though a significant fraction are only partially cloud-covered. The overcast assumption leads to biases in the retrieved cloud properties: cloud amounts and droplet effective radii are typically overestimated, while...
Resource Type:: Article
Full Text:: JAMES A. COAKLEY JR., MICHAEL A. FRIEDMAN,* AND WILLIAM R. TAHNK College of Oceanic and Atmospheric

Aerosol indirect radiative forcing over the northeastern Atlantic from AVHRR observations

Creator:: Matheson, Mark
Abstract:: Advanced Very-High Resolution Radiometer 4-km data were collected over the northeast Atlantic for May-August, 1995-1999. Aerosol optical depth was retrieved in cloud-free pixels. In pixels containing clouds from only single-layered, low-level systems, a retrieval scheme that accounts for partly-cloudy pixels was used to retrieve: cloud optical depth, droplet effective radius,...
Resource Type:: Dissertation

Morning-to-Afternoon Evolution of Marine Stratus Polluted by Underlying Ships: Implications for the Relative Lifetimes of Polluted and Unpolluted Clouds

Creator:: Christensen, Matthew W., Coakley, James A., Jr., and Tahnk, William R.
Abstract:: Ship tracks appearing in both the morning and afternoon Moderate Resolution Imaging Spectroradiometer (MODIS) imagery for the Pacific Ocean off the west coast of the United States were used to study the morning-to-afternoon evolution of marine stratus polluted by underlying ships and nearby uncontaminated stratus. Analyzed 925-hPa winds were used...
Resource Type:: Article
Full Text:: Clouds MATTHEW W. CHRISTENSEN, JAMES A. COAKLEY JR., AND WILLIAM R. TAHNK College of Oceanic and

Effect of changes in relative humidity on aerosol scattering near clouds

Creator:: Twohy, Cynthia, Coakley, James A. Jr., and Tahnk, William R.
Abstract:: Many investigations using satellite data have determined that aerosol optical depth and cloud cover are correlated and some have interpreted the correlation as evidence of an aerosol indirect effect on clouds. This study uses in situ aircraft observations taken during the Indian Ocean Experiment (INDOEX), February–March 1999, and mostly over...
Resource Type:: Article
Full Text:: . Twohy,1 James A. Coakley Jr.,1 and William R. Tahnk1 Received 15 August 2008; revised 8 December 2008

Using Sun Glint to Check the Relative Calibration of Reflected Spectral Radiances

Creator:: Luderer, Gunnar, Coakley, James A. Jr., and Tahnk, William R.
Abstract:: Observations of sunlight reflected from regions of sun glint are used to check the relative calibration of spectral radiances obtained with imaging radiometers. Reflectances at different wavelengths for sun-glint regions are linearly related. Provided that the atmosphere is reasonably transparent at the wavelengths, the aerosol burden is reasonably light, 0.64-μm...
Resource Type:: Article
Full Text:: Spectral Radiances GUNNAR LUDERER,* JAMES A. COAKLEY JR., AND WILLIAM R. TAHNK College of Oceanic and

Investigating climate feedbacks across forcing magnitudes and time scales using the radiative kernel technique

Creator:: Jonko, Alexandra
Abstract:: Radiative feedbacks associated with changes in water vapor, temperature, surface albedo and clouds remain a major source of uncertainty in our understanding of climate's response to anthropogenic forcing. In this dissertation climate model data is used to investigate variations in feedbacks that result from changing CO₂ forcing and the time...
Resource Type:: Dissertation
Full Text:: present: Eric Skyllingstad, Andreas Schmittner, Jim Coakley, James Liburdy, Dudley Chelton and Jeffrey

Allocation of SISAL program graphs to processors using BLAS

Creator:: Raisinghani, Manoj H.
Abstract:: There are a number of well known techniques for extracting parallelism from a given program. They range from hardware implementations, building restructuring compilers or reorganizing of programs so as to specify all the available parallelism. The success rate of any of the known techniques is rather poor over all types...
Resource Type:: Masters Thesis
Full Text:: , special thanks to my committee members : Dr. Herzog, Dr. Lu and Professor James Coakley. Dr. Herzog

Developing models to predict favorable environments for rice blast

Creator:: Calvero, Silvino B.
Abstract:: Statistical analyses were used to develop predictive models of rice blast and to relate the favorability of environment to disease incidence and severity on different rice cultivars at five sites in Asia. The WINDOW PANE program was used to search for weather factors highly correlated with blast. Stepwise and r-square...
Resource Type:: Masters Thesis
Full Text:: . Developing Models to Predict Favorable Environments for Rice Blast by Silvino B. Calvero Jr. A THESIS

11-μm emissivities and droplet radii for marine stratocumulus

Creator:: Luo, Gang, Lin, Xijian, and Coakley, James A.
Abstract:: The results of a new multispectral infrared retrieval scheme for obtaining fractional cloud cover and 11-μm emissivity are compared with those of the spatial coherence method which obtains fractional cloud cover assuming that the clouds are opaque at infrared wavelengths. Both methods are applied to 4-km NOAA advanced very high...
Resource Type:: Article
Full Text:: emissivities and droplet radii for marine stratocumulus Gang Luo, • Xijian Lin, and James A. Coakley, Jr

Enhancement of cloud cover and suppression of nocturnal drizzle in stratocumulus polluted by haze

Creator:: Ackerman, A. S., Toon, O. B., Stevens, D. E., and Coakley, James A., Jr.
Abstract:: Recent satellite observations indicate a significant decrease of cloud water in ship tracks, in contrast to an ensemble of in situ ship-track measurements showing no average change in cloud water relative to the surrounding clouds, and contrary to the expectation of cloud water increasing in polluted clouds. We find through...
Resource Type:: Article
Full Text:: ., O. B. Toon, D. E. Stevens, and J. A. Coakley Jr., Enhancement of cloud cover and suppression of

TextGen : an exemplary generator for generative programming

Creator:: Maki, Alec
Abstract:: Generative programming is a paradigm that seeks to automate the manufacture of software products the same way other industries automated the manufacture of consumer, electric, and mechanical products. I examine how meta-programming fits into the context of generative programming and, along the way, expose theoretic and taxonomic deficiencies. In some...
Resource Type:: Capstone Project
Full Text:: sure how to thank him other than : Thank you. I am indebted to Dr. James Coakley for serving as my

Effects of Additional Particles on Already Polluted Marine Stratus

Creator:: Sechrist, B., Coakley, J. A., Jr., and Tahnk, W. R.
Abstract:: The response of already polluted marine stratocumulus to additional particles was examined by studying the clouds where two ship tracks cross. Nearly 100 such crossings were collected and analyzed using Terra and Aqua Moderate Resolution Imaging Spectroradiometer (MODIS) multispectral imagery for the daytime passes off the western coast of the...
Resource Type:: Article
Full Text:: than that for the nearby unpolluted clouds. Corresponding author address: James A. Coakley Jr

A Study of the Demagoguery of Joseph Smith, Jr.

Creator:: Fillible, Rodney K.
Abstract:: This study Is a rhetorical analysis of ten documents of Joseph Smith, Jr's. early revelations spanning the period of 1829 to 1831 to determine the extent to which he used demagogic rhetoric in pursuit of his goals. A definition of demagoguery is provided and is applied in an analysis of...
Resource Type:: Masters Thesis
Full Text:: A study of the demagoguery of Joseph Smith, Jr. AN

Inference of Marine Stratus Cloud Optical Depths from Satellite Measurements: Does 1D Theory Apply?

Creator:: Loeb, Norman G. and Coakley, J. A., Jr.
Abstract:: The validity of plane-parallel (1D) radiative transfer theory for cloudy atmospheres is examined by directly comparing calculated and observed visible reflectances for one month of Global Area Coverage Advanced Very High Resolution Radiometer satellite observations of marine stratus cloud layers off the coasts of California, Peru, and Angola. Marine stratus...
Resource Type:: Article
Full Text:: Measurements: Does 1D Theory Apply? NORMAN G. LOEB* AND J. A. COAKLEY JR. College of Oceanic and Atmospheric

Satellite Estimates and Shipboard Observations of Downward Radiative Fluxes at the Ocean Surface

Creator:: Guo, G. and Coakley, J. A., Jr.
Abstract:: Clouds and the Earth’s Radiant Energy System (CERES) uses a suite of instruments on the Terra and Aqua satellites combined with analyzed weather data and information on surface conditions to estimate surface radiative fluxes. CERES estimates for the Terra satellite were compared with measurements of the surface radiative fluxes collected...
Resource Type:: Article
Full Text:: Radiative Fluxes at the Ocean Surface G. GUO* AND J. A. COAKLEY JR. College of Oceanic and Atmospheric

Aerosol optical depths and direct radiative forcing for INDOEX derived from AVHRR: Theory

Creator:: Coakley, James A., Jr., Tahnk, William R., Jayaraman, A., Quinn, Patricia K., Devaux, Claude, and Tanré, Didier
Abstract:: A scheme is presented for retrieving aerosol properties for ocean regions from reflected sunlight at both the visible and near infrared wavelengths measured by the NOAA advanced very high resolution radiometer (AVHRR). For the Indian Ocean Experiment (INDOEX), aerosols were presumed to be a mixture of a continental haze that...
Resource Type:: Article
Full Text:: for INDOEX derived from AVHRR: Theory James A. Coakley Jr. and William R. Tahnk College of Oceanic

Al Gore Jr. and the Rhetoric of Self-Disclosure

Creator:: Palmer, Scott Aaron
Abstract:: Senator Al Gore Jr. was elected Vice-President of the United States on November 3, 1992. During many of his public speeches, Gore utilized a speaking style that differed radically from the style he used in other political campaigns of his life. This style, which will be called the "rhetoric of...
Resource Type:: Masters Thesis
Full Text:: political leader. Al Gore Jr. and the Rhetoric of Self-Disclosure by Scott Aaron Palmer A THESIS

Effects of threshold retrievals on estimates of the aerosol indirect radiative forcing

Creator:: Matheson, Mark A., Coakley, James A., and Tahnk, William R.
Abstract:: Empirical estimates of the aerosol indirect radiative forcing often rely on threshold cloud retrievals applied to multispectral satellite imagery data. In such retrievals, pixels having radiances that surpass prescribed thresholds are assumed to be overcast even if they are only partially cloud covered. This assumption leads to cloud visible optical...
Resource Type:: Article
Full Text:: aerosol indirect radiative forcing Mark A. Matheson,1,2 James A. Coakley Jr.,1 and William R. Tahnk1

Multiyear Advanced Very High Resolution Radiometer observations of summertime stratocumulus collocated with aerosols in the northeastern Atlantic

Creator:: Matheson, Mark A., Coakley, James A., and Tahnk, William R.
Abstract:: Advanced Very High Resolution Radiometer (AVHRR) 4-km data were collected over the northeast Atlantic for May–August 1995–1999. Aerosol optical depth at 0.55 μm was retrieved in pixels identified as being cloud-free ocean. In pixels identified as containing clouds from single-layered, low-level cloud systems over oceans, the following cloud properties were...
Resource Type:: Article
Full Text:: . Matheson,1,2 James A. Coakley Jr.,1 and William R. Tahnk1 Received 15 November 2005; revised 18 April 2006

Aerosol and cloud property relationships for summertime stratiform clouds in the northeastern Atlantic from Advanced Very High Resolution Radiometer observations

Creator:: Matheson, Mark A., Coakley, James A., and Tahnk, William R.
Abstract:: Advanced Very High Resolution Radiometer (AVHRR) 4-km data collected over the northeastern Atlantic off the coast of the Iberian Peninsula for May to August 1995 were used to investigate the feasibility of empirically deriving estimates of the aerosol indirect radiative forcing. A retrieval scheme was used to derive cloud visible...
Resource Type:: Article
Full Text:: observations Mark A. Matheson, James A. Coakley Jr., and William R. Tahnk College of Oceanic and Atmospheric

Effects of Aerosols on the Radiative Properties of Clouds

Creator:: Taylor, Jonathan P., Glew, Martin D., Coakley, James A., Jr., Tahnk, William R., Platnick, Steven, Hobbs, Peter V., and Ferek, Ronald J.
Abstract:: The influence of anthropogenic aerosols, in the form of ship exhaust effluent, on the microphysics and radiative properties of marine stratocumulus is studied using data gathered from the U.K. Met. Office C-130 and the University of Washington C-131A aircraft during the Monterey Area Ship Track (MAST) experiment in 1994. During...
Resource Type:: Article
Full Text:: Met. Office, Farnborough, Hampshire, United Kingdom JAMES A. COAKLEY JR. AND WILLIAM R. TAHNK

Effects of fluid axial conduction on liquid metal natural circulation and linear stability

Creator:: Sabharwall, Piyush
Abstract:: The effect of fluid axial thermal conduction on one-dimensional liquid metal natural circulation and its linear stability was performed through non-dimensional analysis, steady-state assessment, and linear perturbation evaluation. The Nyquist criterion and a root search method were employed to find the linear stability boundary of both forward and backward circulations....
Resource Type:: Masters Thesis
Full Text:: instrumental in my education. I also owe Dr. Jose Reyes, Jr. a debt of gratitude for all his help for

Aryl acetylene substituent effects : the synthesis and application of biaryls

Creator:: Naffziger, Michael R.
Abstract:: The work described herein details the synthesis and application of biphenyls that probe the effects of hydrogen, Cl / Br, and methyl substituents on the aryl ring of the terminal acetylenic carbon. From this work, we successfully developed the rapid synthesis of phenyl acetylenes in 3-4 steps from inexpensive commercially...
Resource Type:: Masters Thesis
Full Text:: -4 steps from inexpensive commercially available materials. Using these mild conditions, a wide

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