Search Results - "Llewellyn, E J"

Large Volcanic Aerosol Load in the Stratosphere Linked to Asian Monsoon Transport by Bourassa, Adam E., Robock, Alan, Randel, William J., Deshler, Terry, Rieger, Landon A., Lloyd, Nicholas D., Llewellyn, E. J. (Ted), Degenstein, Douglas A.

“…The Nabro stratovolcano in Eritrea, northeastern Africa, erupted on 13 June 2011, injecting approximately 1.3 teragrams of sulfur dioxide (SO 2 ) to altitudes…”
Get full text

Atmospheric Chemistry Experiment (ACE): Mission overview by Bernath, P. F., McElroy, C. T., Abrams, M. C., Boone, C. D., Butler, M., Camy-Peyret, C., Carleer, M., Clerbaux, C., Coheur, P.-F., Colin, R., DeCola, P., DeMazière, M., Drummond, J. R., Dufour, D., Evans, W. F. J., Fast, H., Fussen, D., Gilbert, K., Jennings, D. E., Llewellyn, E. J., Lowe, R. P., Mahieu, E., McConnell, J. C., McHugh, M., McLeod, S. D., Michaud, R., Midwinter, C., Nassar, R., Nichitiu, F., Nowlan, C., Rinsland, C. P., Rochon, Y. J., Rowlands, N., Semeniuk, K., Simon, P., Skelton, R., Sloan, J. J., Soucy, M.-A., Strong, K., Tremblay, P., Turnbull, D., Walker, K. A., Walkty, I., Wardle, D. A., Wehrle, V., Zander, R., Zou, J.

“…SCISAT‐1, also known as the Atmospheric Chemistry Experiment (ACE), is a Canadian satellite mission for remote sensing of the Earth's atmosphere. It was…”
Get full text

Limb scatter ozone retrieval from 10 to 60 km using a multiplicative algebraic reconstruction technique by Degenstein, D. A., Bourassa, A. E., Roth, C. Z., Llewellyn, E. J.

“…The OSIRIS instrument onboard the Odin spacecraft routinely measures vertical profiles of spectrally dispersed, limb scattered sunlight from the upper…”
Get full text

Saints, Hagiographers, and Religious Experience: The Case of Tukaram and Mahipati by Llewellyn, J.

“…One of the most important developments in Hinduism in the Common Era has been the rise of devotionalism or bhakti. Though theologians and others have…”
Get full text

Stratospheric aerosol retrieval with optical spectrograph and infrared imaging system limb scatter measurements by Bourassa, A. E., Degenstein, D. A., Gattinger, R. L., Llewellyn, E. J.

“…An algorithm for the retrieval of global stratospheric aerosol profiles is presented using the optical spectrograph and infrared imaging system limb scatter…”
Get full text

Odin observations of Antarctic nighttime NO densities in the mesosphere-lower thermosphere and observations of a lower NO layer by Sheese, P. E., Strong, K., Gattinger, R. L., Llewellyn, E. J., Urban, J., Boone, C. D., Smith, A. K.

“…The Optical Spectrograph and Infrared Imaging System (OSIRIS) on the Odin satellite currently has an eight‐year dataset of nighttime Antarctic nitric oxide…”
Get full text

Nighttime nitric oxide densities in the Southern Hemisphere mesosphere-lower thermosphere by Sheese, P. E., Gattinger, R. L., Llewellyn, E. J., Boone, C. D., Strong, K.

“…Observations of NO2 continuum nightglow emissions from OSIRIS, on board the Odin satellite, have been used to derive an eight‐year time series of Southern…”
Get full text

Odin/OSIRIS observations of stratospheric BrO: Retrieval methodology, climatology, and inferred Bry by McLinden, C. A., Haley, C. S., Lloyd, N. D., Hendrick, F., Rozanov, A., Sinnhuber, B.-M., Goutail, F., Degenstein, D. A., Llewellyn, E. J., Sioris, C. E., Van Roozendael, M., Pommereau, J. P., Lotz, W., Burrows, J. P.

“…A 7+ year (2001–2008) data set of stratospheric BrO profiles measured by the Optical Spectrograph and Infra‐Red Imager System (OSIRIS) instrument, a UV‐visible…”
Get full text

Validation of stratospheric and mesospheric ozone observed by SMILES from International Space Station by Kasai, Y, Sagawa, H, Kreyling, D, Dupuy, E, Baron, P, Mendrok, J, Suzuki, K, Sato, T. O, Nishibori, T, Mizobuchi, S, Kikuchi, K, Manabe, T, Ozeki, H, Sugita, T, Fujiwara, M, Irimajiri, Y, Walker, K. A, Bernath, P. F, Boone, C, Stiller, G, von Clarmann, T, Orphal, J, Urban, J, Murtagh, D, Llewellyn, E. J, Degenstein, D, Bourassa, A. E, Lloyd, N. D, Froidevaux, L, Birk, M, Wagner, G, Schreier, F, Xu, J, Vogt, P, Trautmann, T, Yasui, M

“…We observed ozone (O3) in the vertical region between 250 and 0.0005 hPa (~ 12–96 km) using the Superconducting Submillimeter-Wave Limb-Emission Sounder…”
Get full text

Mesopause temperatures during the polar mesospheric cloud season by Sheese, P. E., Llewellyn, E. J., Gattinger, R. L., Bourassa, A. E., Degenstein, D. A., Lloyd, N. D., McDade, I. C.

“…For the first time OSIRIS has derived and analyzed mesopause region temperatures at the summer poles. Temperatures have been derived from observations of O2…”
Get full text

Retrieval of stratospheric aerosol size information from OSIRIS limb scattered sunlight spectra by Bourassa, A. E., Degenstein, D. A., Llewellyn, E. J.

“…Recent work has shown that the retrieval of stratospheric aerosol vertical profiles is possible using limb scattered sunlight measurements at optical…”
Get full text

Ozone depletion during the solar proton events of October/November 2003 as seen by SCIAMACHY by Rohen, G., von Savigny, C., Sinnhuber, M., Llewellyn, E. J., Kaiser, J. W., Jackman, C. H., Kallenrode, M.-B., Schröter, J., Eichmann, K.-U., Bovensmann, H., Burrows, J. P.

“…We use atmospheric ozone density profiles between 35 and 65 km altitude derived from SCIAMACHY limb measurements to quantify the ozone changes caused by the…”
Get full text

Discovery of the FeO orange bands in the terrestrial night airglow spectrum obtained with OSIRIS on the Odin spacecraft by Evans, W. F. J., Gattinger, R. L., Slanger, T. G., Saran, D. V., Degenstein, D. A., Llewellyn, E. J.

“…An unidentified pseudo‐continuum in the 600 nm region is observed in the upper mesosphere with the limb‐scanning OSIRIS imaging spectrograph on‐board the Odin…”
Get full text

Characterization of Odin-OSIRIS ozone profiles with the SAGE II dataset by Adams, C, Bourassa, A. E, Bathgate, A. F, McLinden, C. A, Lloyd, N. D, Roth, C. Z, Llewellyn, E. J, Zawodny, J. M, Flittner, D. E, Manney, G. L, Daffer, W. H, Degenstein, D. A

“…The Optical Spectrograph and InfraRed Imaging System (OSIRIS) on board the Odin spacecraft has been taking limb-scattered measurements of ozone number density…”
Get full text

The roles of vertical advection and eddy diffusion in the equatorial mesospheric semi-annual oscillation (MSAO) by Gattinger, R. L, Kyrölä, E, Boone, C. D, Evans, W. F. J, Walker, K. A, McDade, I. C, Bernath, P. F, Llewellyn, E. J

“…Observations of the mesospheric semi-annual oscillation (MSAO) in the equatorial region have been reported dating back several decades. Seasonal variations in…”
Get full text

The observation of chemiluminescent NiO emissions in the laboratory and in the night airglow by Evans, W. F. J., Gattinger, R. L., Broadfoot, A. L., Llewellyn, E. J.

“…The recent finding of an orange spectral feature in OSIRIS/Odin spectra of the night airglow near 87 km has raised interest in the origin of the emission. The…”
Get full text

Satellite measurements of the global mesospheric sodium layer by Fan, Z. Y., Plane, J. M. C., Gumbel, J., Stegman, J., Llewellyn, E. J.

“…Optimal estimation theory is used to retrieve the absolute Na density profiles in the mesosphere/lower thermosphere from limb-scanning measurements of the Na…”
Get full text

Assessment of the quality of OSIRIS mesospheric temperatures using satellite and ground-based measurements by Sheese, P. E, Strong, K, Llewellyn, E. J, Gattinger, R. L, Russell III, J. M, Boone, C. D, Hervig, M. E, Sica, R. J, Bandoro, J

“…The Optical Spectrograph and InfraRed Imaging System (OSIRIS) on the Odin satellite is currently in its 12th year of observing the Earth's limb. For the first…”
Get full text

Fast NO2 retrievals from Odin-OSIRIS limb scatter measurements by Bourassa, A E, McLinden, C A, Sioris, C E, Brohede, S, Bathgate, A F, Llewellyn, E J, Degenstein, D A

“…The feasibility of retrieving vertical profiles of NO2 from space-based measurements of limb scattered sunlight has been demonstrated using several different…”
Get full text

Retrieval of global mesospheric sodium densities from the Odin satellite by Gumbel, J., Fan, Z. Y., Waldemarsson, T., Stegman, J., Witt, G., Llewellyn, E. J., She, C.-Y., Plane, J. M. C.

“…Satellite observations of the Na D dayglow at 589 nm provide a global database for the climatology of the mesospheric sodium layer. More than five years of Na…”
Get full text