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    Academic Journals

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• TROPESS/CrIS carbon monoxide profile validation with NOAA GML and ATom in situ aircraft observations.

  Authors:Helen M. Worden, Gene L. Francis, Susan S. Kulawik, Kevin W. Bowman, Karen Cady-Pereira, Dejian Fu, et al.From:Atmospheric Measurement Techniques (Vol. 15, Issue 18) Peer-Reviewed

  Sept. 22, 2022344 words Brief article The new single-pixel TROPESS (TRopospheric Ozone and its Precursors from Earth System Sounding) profile retrievals of carbon monoxide (CO) from the Cross-track Infrared Sounder (CrIS) are evaluated using vertical...

• An ensemble-variational inversion system for the estimation of ammonia emissions using CrIS satellite ammonia retrievals.

  Authors:Michael Sitwell, Mark W. Shephard, Yves Rochon, Karen Cady-Pereira, and Enrico DammersFrom:Atmospheric Chemistry and Physics (Vol. 22, Issue 10) Peer-Reviewed

  May 20, 2022226 words Brief article An ensemble-variational inversion system is developed for the estimation of ammonia emissions using ammonia retrievals from the Cross-track Infrared Sounder (CrIS) for use in the Global Environmental Multiscale -...

• Comparison of optimal estimation HDO/H.sub.2O retrievals from AIRS with ORACLES measurements.

  Authors:Robert L. Herman, John Worden, David Noone, Dean Henze, Kevin Bowman, Karen Cady-Pereira, et al.From:Atmospheric Measurement Techniques (Vol. 13, Issue 4) Peer-Reviewed

  Apr. 8, 2020280 words Brief article In this paper we evaluate new retrievals of the deuterium content of water vapor from the Aqua Atmospheric InfraRed Sounder (AIRS), with aircraft measurements of HDO and H.sub.2 O from the ObseRvations of Aerosols above...

• Validation of the CrIS fast physical NH.sub.3 retrieval with ground-based FTIR

  Authors:Enrico Dammers, Mark W. Shephard, Mathias Palm, Karen Cady-Pereira, Shannon Capps, Erik Lutsch, et al.From:Atmospheric Measurement Techniques (Vol. 10, Issue 7) Peer-Reviewed

  July 25, 2017358 words Author abstract, Bri... Presented here is the validation of the CrIS (Cross-track Infrared Sounder) fast physical NH.sub.3 retrieval (CFPR) column and profile measurements using ground-based Fourier transform infrared (FTIR)...

• A physics-based approach to oversample multi-satellite, multispecies observations to a common grid

  Authors:Kang Sun, Lei Zhu, Karen Cady-Pereira, Christopher Chan Miller, Kelly Chance, Lieven Clarisse, et al.From:Atmospheric Measurement Techniques (Vol. 11, Issue 12) Peer-Reviewed

  Dec. 18, 2018392 words Author abstract, Bri...

  Satellite remote sensing of the Earth's atmospheric composition usually samples irregularly in space and time, and many applications require spatially and temporally averaging the satellite observations (level 2) to...

• NH.sub.3 emissions from large point sources derived from CrIS and IASI satellite observations

  Authors:Enrico Dammers, Chris A. McLinden, Debora Griffin, Mark W. Shephard, Shelley Van Der Graaf, Erik Lutsch, et al.From:Atmospheric Chemistry and Physics (Vol. 19, Issue 19) Peer-Reviewed

  Oct. 2, 2019374 words Brief article, Repor...

  Ammonia (NH.sub.3) is an essential reactive nitrogen species in the biosphere and through its use in agriculture in the form of fertilizer (important for sustaining humankind). The current emission levels, however,...

• Characterization and evaluation of AIRS-based estimates of the deuterium content of water vapor

  Authors:John R. Worden, Susan S. Kulawik, Dejian Fu, Vivienne H. Payne, Alan E. Lipton, Igor Polonsky, et al.From:Atmospheric Measurement Techniques (Vol. 12, Issue 4) Peer-Reviewed

  Apr. 15, 201965 words Author abstract, Bri... Byline: John R. Worden, Susan S. Kulawik, Dejian Fu, Vivienne H. Payne, Alan E. Lipton, Igor Polonsky, Yuguang He, Karen Cady-Pereira, Jean-Luc Moncet, Robert L. Herman, Fredrick W. Irion, Kevin W. Bowman To access,...

• Using TES retrievals to investigate PAN in North American biomass burning plumes

  Authors:Emily V. Fischer, Liye Zhu, Vivienne H. Payne, John R. Worden, Zhe Jiang, Susan S. Kulawik, et al.From:Atmospheric Chemistry and Physics (Vol. 18, Issue 8) Peer-Reviewed

  Apr. 24, 2018310 words Author abstract, Bri... Peroxyacyl nitrate (PAN) is a critical atmospheric reservoir for nitrogen oxide radicals, and plays a lead role in their redistribution in the troposphere. We analyze new Tropospheric Emission Spectrometer (TES) PAN...

• The effect of the half-width of the 22-GHz water vapor line on retrievals of temperature and water vapor profiles with a 12-channel microwave radiometer

  Authors:James C. Liljegren, Sid-Ahmed Boukabara, Karen Cady-Pereira, and Shepard A. CloughFrom:IEEE Transactions on Geoscience and Remote Sensing (Vol. 43, Issue 5) Peer-Reviewed

  May 2005139 words Author abstract

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• Forward Model and Jacobians for Tropospheric Emission Spectrometer retrievals

  Authors:Shepard A. Clough, Mark W. Shephard, John Worden, Patrick D. Brown, Helen M. Worden, Mingzhao Luo, et al.From:IEEE Transactions on Geoscience and Remote Sensing (Vol. 44, Issue 5) Peer-Reviewed

  May 2006212 words Author abstract 60L

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• Retrieving liquid water path and precipitable water vapor from the atmospheric radiation measurement (ARM) microwave radiometers

  Authors:David D. Turner, Shepard A. Clough, James C. Liljegren, Eugene E. Clothiaux, Karen E. Cady-Pereira, and Krista L. GaustadFrom:IEEE Transactions on Geoscience and Remote Sensing (Vol. 45, Issue 11) Peer-Reviewed

  Nov. 2007215 words Technical report

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• Modeling the diurnal variability of agricultural ammonia in Bakersfield, California, during the CalNex campaign

  Authors:Chantelle R. Lonsdale, Jennifer D. Hegarty, Karen E. Cady-Pereira, Matthew J. Alvarado, Daven K. Henze, Matthew D. Turner, et al.From:Atmospheric Chemistry and Physics (Vol. 17, Issue 4) Peer-Reviewed

  Feb. 23, 2017485 words Brief article NH.sub.3 retrievals from the NASA Tropospheric Emission Spectrometer (TES), as well as surface and aircraft observations of NH.sub.3(g) and submicron NH.sub.4(p), are used to evaluate modeled concentrations of...

• 10-year satellite-constrained fluxes of ammonia improve performance of chemistry transport models.

  Authors:Nikolaos Evangeliou, Yves Balkanski, Sabine Eckhardt, Anne Cozic, Martin Van Damme, Pierre-François Coheur, et al.From:Atmospheric Chemistry and Physics (Vol. 21, Issue 6) Peer-Reviewed

  Mar. 23, 2021376 words Brief article In recent years, ammonia emissions have been continuously increasing, being almost 4 times higher than in the 20th century. Although an important species, as its use as a fertilizer sustains human living, ammonia has...

• Validation and error estimation of AIRS MUSES CO profiles with HIPPO, ATom, and NOAA GML aircraft observations.

  Authors:Jennifer D. Hegarty, Karen E. Cady-Pereira, Vivienne H. Payne, Susan S. Kulawik, John R. Worden, Valentin Kantchev, et al.From:Atmospheric Measurement Techniques (Vol. 15, Issue 1) Peer-Reviewed

  Jan. 17, 2022458 words Article Single-footprint retrievals of carbon monoxide from the Atmospheric Infrared Sounder (AIRS) are evaluated using aircraft in situ observations. The aircraft data are from the HIAPER Pole-to-Pole Observations (HIPPO,...

• Seasonal and spatial changes in trace gases over megacities from Aura TES observations: two case studies

  Authors:Karen E. Cady-Pereira, Vivienne H. Payne, Jessica L. Neu, Kevin W. Bowman, Kazuyuki Miyazaki, Eloise A. Marais, et al.From:Atmospheric Chemistry and Physics (Vol. 17, Issue 15) Peer-Reviewed

  Aug. 7, 2017288 words Author abstract, Bri... The Aura Tropospheric Emission Spectrometer (TES) is collecting closely spaced observations over 19 megacities. The objective is to obtain measurements that will lead to better understanding of the...

• Contributions of natural and anthropogenic sources to ambient ammonia in the Athabasca Oil Sands and north-western Canada

  Authors:Cynthia H. Whaley, Paul A. Makar, Mark W. Shephard, Leiming Zhang, Junhua Zhang, Qiong Zheng, et al.From:Atmospheric Chemistry and Physics (Vol. 18, Issue 3) Peer-Reviewed

  Feb. 13, 201863 words Author abstract, Bri... Byline: Cynthia H. Whaley, Paul A. Makar, Mark W. Shephard, Leiming Zhang, Junhua Zhang, Qiong Zheng, Ayodeji Akingunola, Gregory R. Wentworth, Jennifer G. Murphy, Shailesh K. Kharol, Karen E. Cady-Pereira To access,...

• Evaluation of single-footprint AIRS CH.sub.4 profile retrieval uncertainties using aircraft profile measurements.

  Authors:Susan S. Kulawik, John R. Worden, Vivienne H. Payne, Dejian Fu, Steven C. Wofsy, Kathryn McKain, et al.From:Atmospheric Measurement Techniques (Vol. 14, Issue 1) Peer-Reviewed

  Jan. 15, 2021378 words Brief article We evaluate the uncertainties of methane optimal estimation retrievals from single-footprint thermal infrared observations from the Atmospheric Infrared Sounder (AIRS). These retrievals are primarily sensitive to...

• Ammonia measurements from space with the Cross-track Infrared Sounder: characteristics and applications

  Authors:Mark W. Shephard, Enrico Dammers, Karen E. Cady-Pereira, Shailesh K. Kharol, Jesse Thompson, Yonatan Gainariu-Matz, et al.From:Atmospheric Chemistry and Physics (Vol. 20, Issue 4) Peer-Reviewed

  Feb. 26, 2020312 words Brief article Despite its clear importance, the monitoring of atmospheric ammonia, including its sources, sinks, and links to the greater nitrogen cycle, remains limited. Satellite data are helping to fill the gap in monitoring from...

• Satellite-derived emissions of carbon monoxide, ammonia, and nitrogen dioxide from the 2016 Horse River wildfire in the Fort McMurray area

  Authors:Cristen Adams, Chris A. McLinden, Mark W. Shephard, Nolan Dickson, Enrico Dammers, Jack Chen, et al.From:Atmospheric Chemistry and Physics (Vol. 19, Issue 4) Peer-Reviewed

  Feb. 28, 2019482 words Brief article, Repor...

  In May 2016, the Horse River wildfire led to the evacuation of ∼ 88 000 people from Fort McMurray and surrounding areas and consumed ∼ 590 000 ha...

• Air-broadened half-widths of the 22- and 183-GHz water-vapor lines

  Authors:Vivienne H. Payne, Jennifer S. Delamere, Karen E. Cady-Pereira, Robert R. Gamache, Jean-Luc Moncet, Eli J. Mlawer, et al.From:IEEE Transactions on Geoscience and Remote Sensing (Vol. 46, Issue 11) Peer-Reviewed

  Nov. 2008182 words Author abstract, Rep...

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