P
Patrick W. Hillyard
Researcher at Ames Research Center
Publications - 12
Citations - 619
Patrick W. Hillyard is an academic researcher from Ames Research Center. The author has contributed to research in topics: Total Carbon Column Observing Network & HYSPLIT. The author has an hindex of 7, co-authored 12 publications receiving 441 citations.
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Journal ArticleDOI
Comparisons of the Orbiting Carbon Observatory-2 (OCO-2) X CO 2 measurements with TCCON
Debra Wunch,Debra Wunch,Paul O. Wennberg,Gregory B. Osterman,Gregory B. Osterman,Brendan Fisher,Brendan Fisher,B. J. Naylor,B. J. Naylor,Coleen M. Roehl,Christopher W. O'Dell,Lukas Mandrake,Lukas Mandrake,Camille Viatte,Matthäus Kiel,Matthäus Kiel,David W. T. Griffith,Nicholas M. Deutscher,Nicholas M. Deutscher,Voltaire A. Velazco,Justus Notholt,Thorsten Warneke,Christof Petri,Martine De Mazière,Mahesh Kumar Sha,Ralf Sussmann,Markus Rettinger,David F. Pollard,John Robinson,Isamu Morino,Osamu Uchino,Frank Hase,Thomas Blumenstock,Dietrich G. Feist,Sabrina G. Arnold,Kimberly Strong,J. Mendonca,Rigel Kivi,Pauli Heikkinen,Laura T. Iraci,James R. Podolske,Patrick W. Hillyard,Shuji Kawakami,Manvendra K. Dubey,H. A. Parker,Eliezer Sepúlveda,Omaira García,Yao Té,P. Jeseck,Michael R. Gunson,Michael R. Gunson,David Crisp,David Crisp,Annmarie Eldering,Annmarie Eldering +54 more
TL;DR: In this article, the first major release of the OCO2 retrieval algorithm (B7r) and X_(CO2) from OCO-2's primary ground-based validation network: the Total Carbon Column Observing Network (TCCON) were compared.
Comparisons of the Orbiting Carbon Observatory-2 (OCO-2) XCO2 measurements with TCCON [Discussion paper]
Debra Wunch,Paul O. Wennberg,Gregory B. Osterman,Brendan Fisher,B. J. Naylor,Coleen M. Roehl,Christopher W. O'Dell,Lukas Mandrake,Camille Viatte,David W. T. Griffith,Nicholas M. Deutscher,Voltaire A. Velazco,Justus Notholt,Thorsten Warneke,Christof Petri,Martine De Mazière,Mahesh Kumar Sha,Ralf Sussmann,Markus Rettinger,David F. Pollard,John Robinson,Isamu Morino,Osamu Uchino,Frank Hase,Thomas Blumenstock,Matthaeus Kiel,Dietrich G. Feist,Sabrina G. Arnold,Kimberly Strong,J. Mendonca,Rigel Kivi,Pauli Heikkinen,Laura T. Iraci,James R. Podolske,Patrick W. Hillyard,Shuji Kawakami,Manvendra K. Dubey,H. A. Parker,Eliezer Sepúlveda Hernández,Omaira Elena García Rodríguez,Yao Té,Pascal Jeseck,Michael R. Gunson,David Crip,Annmarie Eldering +44 more
Journal ArticleDOI
Southern California megacity CO 2 , CH 4 , and CO flux estimates using ground- and space-based remote sensing and a Lagrangian model
Jacob K. Hedelius,Jacob K. Hedelius,Junjie Liu,Tomohiro Oda,Tomohiro Oda,Shamil Maksyutov,Coleen M. Roehl,Laura T. Iraci,James R. Podolske,Patrick W. Hillyard,Jianming Liang,Kevin R. Gurney,Kevin R. Gurney,Debra Wunch,Paul O. Wennberg +14 more
TL;DR: In this article, the authors estimate the overall CO2, CH4, and CO-flux from the South Coast Air Basin using an inversion that couples TotalCarbon Column Observing Network (TCCON) and Orbiting Carbon Observatory-2 (OCO-2) observations, with the Hybrid Single Particle Lagrangian Integrated trajectory (HYSPLIT) model and the Open-source Data Inventory for Anthropogenic CO2 (ODIAC).
Journal ArticleDOI
Bias corrections of GOSAT SWIR XCO2 and XCH4 with TCCON data and their evaluation using aircraft measurement data
Makoto Inoue,Makoto Inoue,Isamu Morino,Osamu Uchino,Takahiro Nakatsuru,Yukio Yoshida,Tatsuya Yokota,Debra Wunch,Paul O. Wennberg,Coleen M. Roehl,David W. T. Griffith,Voltaire A. Velazco,Nicholas M. Deutscher,Thorsten Warneke,Justus Notholt,John Robinson,Vanessa Sherlock,Frank Hase,Thomas Blumenstock,Markus Rettinger,Ralf Sussmann,Esko Kyrö,Rigel Kivi,Kei Shiomi,Shuji Kawakami,Martine De Mazière,Sabrina G. Arnold,Dietrich G. Feist,Erica A. Barrow,James Barney,Manvendra K. Dubey,Matthias Schneider,Laura T. Iraci,James R. Podolske,Patrick W. Hillyard,Toshinobu Machida,Yousuke Sawa,Kazuhiro Tsuboi,Hidekazu Matsueda,Colm Sweeney,Pieter P. Tans,Arlyn E. Andrews,Sébastien C. Biraud,Yukio Fukuyama,Jasna V. Pittman,Eric A. Kort,Eric A. Kort,Tomoaki Tanaka,Tomoaki Tanaka,Tomoaki Tanaka +49 more
TL;DR: In this article, a method for removing systematic biases of column-averaged dry air mole fractions of CO2 (XCO2) and CH4 (XCH4) derived from short-wavelength infrared (SWIR) spectra of the Greenhouse gases Observing SATellite (GOSAT) was described.
Journal ArticleDOI
Intercomparability of X CO 2 and X CH 4 from the United States TCCON sites
Jacob K. Hedelius,H. A. Parker,Debra Wunch,Coleen M. Roehl,Camille Viatte,Sally Newman,Geoffrey C. Toon,James R. Podolske,Patrick W. Hillyard,Laura T. Iraci,Manvendra K. Dubey,Paul O. Wennberg +11 more
TL;DR: In this paper, the authors used a pair of portable spectrometers to test for intra-network bias among the four currently operating Total Carbon Column Observing Network (TCCON) sites in the United States (US).