Index Catalog // ScholarsArchive@OSU

High resolution digital imaging of bacterial cells

Creator:: Siebold, William A.
Abstract:: The most abundant clone found in ribosomal RNA clone libraries obtained from the world's oceans belongs to the SAR11 phylogenetic group of environmental marine bacteria. Imaging and counting SAR11 bacterial cells in situ has been an important research objective for the past decade. This objective has been especially challenging due...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF William A. Siebold for the degree

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:: atot_20_102.1826_1833.tp 1826 VOLUME 19J O U R N A L O F A T

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

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

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

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

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

Prospects for Recovering Endemic Fishes Pursuant to the U.S. Endangered Species Act

Creator:: Williams, Jack E., Macdonald, Catherine A., Williams, Cindy Deacon, Weeks, Hal, Lampman, Georgina, and Sada, Don W.
Abstract:: If the success of the Endangered Species Act (ESA) is measured by the number of endangered species that have been recovered and delisted, then the act is not very successful. Only 15 species have been delisted because of recovery in the history of the ESA. The Borax Lake chub (Gila...
Resource Type:: Article
Full Text:: may war- rant future dellsting. A panel of scientists was convened to determine consensus regarding

Beyond smoke and mirrors: a synthesis of fire policy and science

Creator:: Dellasala, Dominick A., Williams, Jack E., Deacon Williams, Cindy, and Franklin, Jerry F.
Abstract:: Fire performs many beneficial ecosystem functions in dry forests and rangelands across much of North America. In the last century, however, the role of fire has been dramatically altered by numerous anthropogenic factors acting as root causes of the current fire crisis, including widespread logging, road building, fire suppression, habitat...
Resource Type:: Article
Full Text:: cbi_529.tex Beyond Smoke and Mirrors: a Synthesis of Fire

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

ScholarsArchive@OSU

High resolution digital imaging of bacterial cells

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

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

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

Retrieval of Cloud Properties for Partly Cloudy Imager Pixels

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

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

Prospects for Recovering Endemic Fishes Pursuant to the U.S. Endangered Species Act

Beyond smoke and mirrors: a synthesis of fire policy and science

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

Limit your search

Academic Affiliation

Advisor

Commencement Year

Conference Name

Conference Section/Track

Creator

Date

Decade

Degree Field

Degree Level

Degree Name

File Format

Language

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search