Mark W. Shephard

Evaluation of recent updates to the spectroscopy of CO2 and CH4 in the thermal infrared using observations from IASI

By Mark W. Shephard, Matthew J. Alvarado, Eli J. Mlawer, Gennady Uymin, Karen Cady-Pereira, Jean-Luc Moncet
December 6, 2012

AGU Fall Meeting 2012

Filed under: Remote sensing, Tropospheric Emission Spectrometer (TES)

TES ammonia retrieval strategy and global observations of the spatial and seasonal variability of ammonia

By Mark W. Shephard, Karen Cady-Pereira
November 2, 2011

Atmospheric Chemistry and Physics

Filed under: Tropospheric Emission Spectrometer (TES)

Long-term stability of TES satellite radiance measurements

By Thomas Connor, Mark W. Shephard, Vivienne H. Payne, Karen Cady-Pereira, S.S. Kulawik, M. Luo, G. B. Osterman, M. Lampel
July 25, 2011

Atmospheric Measurement Techniques

Filed under: Atmosphere, Atmospheric composition, Optimal Spectral Sampling (OSS), Satellite

Quantifying spatial and seasonal variability in atmospheric ammonia with in situ and space-based observations

By W. R. Pinder, J. T. Walker, J. O. Bash, Karen Cady-Pereira, D. K. Henze, M. Luo, G. B. Osterman, Mark W. Shephard
February 18, 2011

Geophysical Research Letters

Filed under: Algorithms, Atmospheric composition, Satellite, Trace gases

Performance of the line-by-line radiative transfer model (LBLRTM) for temperature and species retrievals: IASI case studies from JAIVEx

By Mark W. Shephard, S. A. Clough, Vivienne H. Payne, W. L. Smith, S. Kireev, Karen Cady-Pereira
August 3, 2009

Atmospheric Chemistry and Physics

Filed under: Atmospheric composition, Infrared remote sensing

Information-centered representation of retrievals with limited degrees of freedom for signal: Application to methane from the Tropospheric Emission Spectrometer

By Vivienne H. Payne, S. A. Clough, Mark W. Shephard, R. Nassar, J. A. Logan
May 27, 2009

Journal of Geophysical Research Atmospheres

Filed under: Atmosphere, Radiative transfer

Atmospheric and surface retrievals in the Mars polar regions from the Thermal Emission Spectrometer measurements

By Jean-Luc Moncet, Mark W. Shephard, Karen Cady-Pereira, Thomas Connor, Gennady Uymin
October 31, 2008

Journal of Geophysical Research Planets

Filed under: Atmosphere, Remote sensing

Radiative forcing by long-lived greenhouse gases: Calculations with the AER radiative transfer models

By Michael J. Iacono, Jennifer S. Delamere, Eli J. Mlawer, Mark W. Shephard, S. A. Clough, W. D. Collins
July 2, 2008

Journal of Geophysical Research

Filed under: Radiative transfer

Comparison of Tropospheric Emission Spectrometer nadir water vapor retrievals with in situ measurements

By Mark W. Shephard, Karen Cady-Pereira, S. A. Clough, Vivienne H. Payne, G. B. Osterman, M. Luo, C.P. Rinsland, M.R. Gunson, R.L. Herman, B. M. Fisher, D.N. Whiteman, J.P. Comer, H. Vömel, L.M. Miloshevich, R. Forno, M. Adam, J.R. Worden, A. Eldering, L.R. Brown, H. M. Worden, S.S. Kulawik, D. M. Rider, A. Goldman, R. Beer, K. W. Bowman, C.D. Rodgers, M. Lampel
May 16, 2008

Journal of Geophysical Research

Filed under: Remote sensing

Tropospheric Emission Spectrometer Spectral Radiance Comparisons

By Mark W. Shephard, Karen Cady-Pereira, M. Luo, S. A. Clough, G. B. Osterman, M.R. Gunson, H. M. Worden, M. Lampel, K. W. Bowman, E. Sarkissian, R. Beer, D. M. Rider, D. C. Tobin, H. E. Revercomb, B. M. Fisher, D. Tremblay
April 22, 2008

Journal of Geophysical Research

Filed under: Radiation belt, Remote sensing

Improved Daytime Column Integrated Precipitable Water Vapor from Vaisala Radiosonde Humidity Sensors

By Karen Cady-Pereira, Mark W. Shephard, D. D. Turner, Eli J. Mlawer, S. A. Clough, T. J. Wagner
October 30, 2007

Journal of Atmospheric and Oceanic Technology

Filed under: Algorithms, Atmosphere, Microwave radiometer, Microwave remote sensing

Current updates of the water-vapor linelist in HITRAN: A new “Diet” for air-broadened half-widths

By R. R. Gamache, Mark W. Shephard, Jennifer S. Delamere, S. A. Clough, I. E. Gordon, L.S. Rothman, D. Jacquemart, C. Boone, P.F. Bernath
June 24, 2007

Journal of Quantitative Spectroscopy & Radiative Transfer

Filed under: Remote sensing

Forward model and Jacobians for tropospheric emission spectrometer retrievals

By S. A. Clough, Mark W. Shephard, J.R. Worden, P. D. Brown, H. M. Worden, M. Luo, C.D. Rodgers, C.P. Rinsland, A. Goldman, L.R. Brown, S.S. Kulawik, A. Eldering, M. Lampel, G. B. Osterman, R. Beer, K. W. Bowman, Karen Cady-Pereira, Eli J. Mlawer
April 24, 2006

IEEE Transactions on Geoscience and Remote Sensing

Filed under: Tropospheric Emission Spectrometer (TES)

The QME AERI LBLRTM: A closure experiment for downwelling high spectral resolution infrared radiance

By P. D. Brown, Eli J. Mlawer, D. D. Turner, Mark W. Shephard, S. A. Clough
November 8, 2004

Journal of the Atmospheric Sciences

Filed under: Atmosphere, Atmospheric composition, Radiative transfer

Atmospheric Radiative Transfer Modeling: a Summary of the AER Codes

By S. A. Clough, Mark W. Shephard, Eli J. Mlawer, Jennifer S. Delamere, Michael J. Iacono, Karen Cady-Pereira, S.-A. Boukabara, P. D. Brown
May 21, 2004

Journal of Quantitative Spectroscopy & Radiative Transfer

Filed under: Radiative transfer

Spectroscopic improvements providing evidence of formic acid in AERI-LBLRTM validation spectra

By Mark W. Shephard, S. A. Clough, Eli J. Mlawer
November 15, 2003

Journal of Quantitative Spectroscopy and Radiative Transfer

Filed under: Radiative transfer

Effect of Band-to-Band Coregistration of Fire Property Retrievals

By Mark W. Shephard, Edward Kennelly
November 3, 2003

IEEE Transactions on Geoscience and Remote Sensing

Filed under: Satellite