B
Brendan Fisher
Researcher at California Institute of Technology
Publications - 66
Citations - 4578
Brendan Fisher is an academic researcher from California Institute of Technology. The author has contributed to research in topics: Tropospheric Emission Spectrometer & Jupiter. The author has an hindex of 31, co-authored 62 publications receiving 3741 citations. Previous affiliations of Brendan Fisher include Jet Propulsion Laboratory.
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Journal ArticleDOI
The ACOS CO 2 retrieval algorithm – Part 1: Description and validation against synthetic observations
Christopher W. O'Dell,B. J. Connor,Hartmut Bösch,D. M. O'Brien,Christian Frankenberg,Rebecca Castano,M. Christi,D. Eldering,Brendan Fisher,M. R. Gunson,James McDuffie,Charles E. Miller,Vijay Natraj,Fabiano Oyafuso,I. Polonsky,Mike Smyth,Thomas E. Taylor,G. C. Toon,Paul O. Wennberg,Debra Wunch +19 more
TL;DR: In this paper, the authors describe the NASA Atmospheric CO2 Observations from Space (ACOS) XCO2 retrieval algorithm and its performance on highly realistic, simulated observations, and evaluate retrieval errors in the face of realistic clouds and aerosols, polarized non-Lambertian surfaces, imperfect meteorology, and uncorrelated instrument noise.
Journal ArticleDOI
The on-orbit performance of the Orbiting Carbon Observatory-2 (OCO-2) instrument and its radiometrically calibrated products
David Crisp,Harold R. Pollock,Robert Rosenberg,Lars Chapsky,Richard A. M. Lee,Fabiano Oyafuso,Christian Frankenberg,Christopher W. O'Dell,Carol J. Bruegge,Gary Doran,Annmarie Eldering,Brendan Fisher,Dejian Fu,Michael R. Gunson,Lukas Mandrake,Gregory B. Osterman,Florian M. Schwandner,Florian M. Schwandner,Kang Sun,T. Taylor,Paul O. Wennberg,Debra Wunch,Debra Wunch +22 more
TL;DR: The Orbiting Carbon Observatory-2 (OCO-2) carries and points a three-channel imaging grating spectrometer designed to collect high-resolution, co-boresighted spectra of reflected sunlight within the molecular oxygen (O2) A-band at 0.765 microns and the carbon dioxide (CO2) bands at 1.61 and 2.06 microns.
Journal ArticleDOI
A method for evaluating bias in global measurements of CO 2 total columns from space
Debra Wunch,Paul O. Wennberg,G. C. Toon,B. J. Connor,Brendan Fisher,Gregory B. Osterman,Christian Frankenberg,Lukas Mandrake,Christopher W. O'Dell,P. Ahonen,Sébastien C. Biraud,Rebecca Castano,Noel A Cressie,David Crisp,Nicholas M. Deutscher,Nicholas M. Deutscher,Annmarie Eldering,M. L. Fisher,David W. T. Griffith,M. R. Gunson,Pauli Heikkinen,Gretchen Keppel-Aleks,Esko Kyrö,Rodica Lindenmaier,R. Macatangay,J. Mendonca,J. Messerschmidt,Charles E. Miller,Isamu Morino,Justus Notholt,Fabiano Oyafuso,Markus Rettinger,John Robinson,Coleen M. Roehl,Ross J. Salawitch,Vanessa Sherlock,Kim Strong,Ralf Sussmann,Tomoaki Tanaka,Tomoaki Tanaka,David R. Thompson,Osamu Uchino,Thorsten Warneke,S. C. Wofsy +43 more
TL;DR: In this paper, a method of evaluating systematic errors in measurements of total column dry-air mole fractions of CO2 (XCO2) from space is described, and applied to the v2.8 Atmospheric CO2 Observations from Space retrievals of the Greenhouse Gases Observing Satellite (ACOS-GOSAT) measurements over land.
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.
Journal ArticleDOI
The ACOS CO 2 retrieval algorithm – Part II: Global X CO 2 data characterization
David Crisp,Brendan Fisher,Christopher W. O'Dell,Christian Frankenberg,Ralph R. Basilio,Hartmut Bösch,Linda R. Brown,Rebecca Castano,B. J. Connor,Nicholas M. Deutscher,Nicholas M. Deutscher,Annmarie Eldering,David W. T. Griffith,M. R. Gunson,Akihiko Kuze,Lukas Mandrake,James McDuffie,J. Messerschmidt,Charles E. Miller,Isamu Morino,Vijay Natraj,Justus Notholt,D. M. O'Brien,Fabiano Oyafuso,I. Polonsky,John Robinson,Ross J. Salawitch,Vanessa Sherlock,Mike Smyth,Hiroshi Suto,Thomas E. Taylor,David R. Thompson,Paul O. Wennberg,Debra Wunch,Yuk L. Yung +34 more
TL;DR: This article reported preliminary estimates of column averaged carbon dioxide (CO2) dry air mole fraction, XCO2, retrieved from spectra recorded over land by the Greenhouse gases Observing Satellite, GOSAT (nicknamed "Ibuki"), using retrieval methods originally developed for the NASA Orbiting Carbon Observatory (OCO) mission.