R
Robert L. Herman
Researcher at California Institute of Technology
Publications - 87
Citations - 4123
Robert L. Herman is an academic researcher from California Institute of Technology. The author has contributed to research in topics: Stratosphere & Troposphere. The author has an hindex of 33, co-authored 86 publications receiving 3864 citations. Previous affiliations of Robert L. Herman include Jet Propulsion Laboratory & Harvard University.
Papers
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Journal ArticleDOI
Hydrogen Radicals, Nitrogen Radicals, and the Production of O3 in the Upper Troposphere
Paul O. Wennberg,Thomas F. Hanisco,Lyatt Jaeglé,D. J. Jacob,Eric J. Hintsa,E. J. Lanzendorf,James G. Anderson,Ruixuan Gao,E. R. Keim,S. G. Donnelly,L. A. Del Negro,David W. Fahey,S. A. McKeen,Ross J. Salawitch,C. R. Webster,R. D. May,Robert L. Herman,M. H. Proffitt,J. J. Margitan,Elliot Atlas,S. M. Schauffler,Frank Flocke,C. T. McElroy,T. P. Bui +23 more
TL;DR: In the upper tropospheric air masses sampled, the production rate for ozone (determined from the measured concentrations of HO_2 and NO) is calculated to be about 1 part per billion by volume each day.
Journal ArticleDOI
The detection of large HNO3-containing particles in the winter Arctic stratosphere.
David W. Fahey,Ru-Shan Gao,Kenneth S. Carslaw,J. Kettleborough,P. J. Popp,M. J. Northway,J. C. Holecek,S. C. Ciciora,R. J. McLaughlin,Thomas L. Thompson,R. H. Winkler,Darrel Baumgardner,B. W. Gandrud,Paul O. Wennberg,Suresh Dhaniyala,K. A. McKinney,Th. Peter,Ross J. Salawitch,T. P. Bui,James W. Elkins,C. R. Webster,Elliot Atlas,H. Jost,James C. Wilson,Robert L. Herman,Armin Kleinböhl,M. von König +26 more
TL;DR: Large particles containing nitric acid (HNO3) were observed in the 1999/2000 Arctic winter stratosphere and a microphysical model is able to simulate the growth and sedimentation of these large sizes in the lower stratosphere, but the nucleation process is not yet known.
Journal ArticleDOI
Aura Microwave Limb Sounder upper tropospheric and lower stratospheric H2O and relative humidity with respect to ice validation
William G. Read,Alyn Lambert,Julio T. Bacmeister,R. E. Cofield,Lance E. Christensen,D. T. Cuddy,William H. Daffer,Brian J. Drouin,Eric J. Fetzer,Lucien Froidevaux,R. A. Fuller,Robert L. Herman,Robert Jarnot,Jonathan H. Jiang,Yan Jiang,K. K. Kelly,Brian Knosp,L. J. Kovalenko,Nathaniel J. Livesey,Han-Shou Liu,Gloria L. Manney,Herbert M. Pickett,Hugh C. Pumphrey,Karen H. Rosenlof,X. Sabounchi,Michelle L. Santee,Michael J. Schwartz,W. V. Snyder,P. C. Stek,Hui Su,Lawrence L. Takacs,R. P. Thurstans,Holger Vömel,P. A. Wagner,Joe W. Waters,Christopher R. Webster,Elliot M. Weinstock,Dien Wu +37 more
TL;DR: The validation of version 2.2 (v2.2) H2O measurements from the Earth Observing System (EOS) Microwave Limb Sounder (Aura MLS) on the Aura satellite is presented in this article.
Journal ArticleDOI
Comparisons of Tropospheric Emission Spectrometer (TES) ozone profiles to ozonesondes: Methods and initial results
Helen M. Worden,Jennifer A. Logan,John Worden,Reinhard Beer,Kevin W. Bowman,Shepard A. Clough,Annmarie Eldering,Brendan Fisher,M. R. Gunson,Robert L. Herman,Susan S. Kulawik,M. Lampel,M. Luo,I. A. Megretskaia,Gregory B. Osterman,Mark W. Shephard +15 more
TL;DR: In this article, the Tropospheric Emission Spectrometer (TES) on the Earth Observing System (EOS)-Aura spacecraft measured global profiles of atmospheric ozone with vertical resolution of 6-7 km in the troposphere for the nadir view.
Book
Mean Ages of Stratospheric Air Derived from in Situ Observations of Co2, Ch4, and N2o
Arlyn E. Andrews,Kristie A. Boering,Bruce C. Daube,S. C. Wofsy,Max Loewenstein,H. Jost,J. R. Podolske,Christopher R. Webster,Robert L. Herman,D. C. Scott,G. Flesch,Elisabeth J. Moyer,James W. Elkins,Geoff S. Dutton,Dale F. Hurst,Fred L. Moore,Eric A. Ray,P. A. Romashkin,Susan E. Strahan +18 more
TL;DR: In this article, the authors derived a spatially and temporally comprehensive set of in situ observations of CO2, CH4, and N2O obtained from 1992 to 1998 from the NASA ER-2 aircraft and balloon flights.