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2. Cover

Author

Henry Clay and James F. Hopkins

Published
2015

3. Symbols

Author

Henry Clay and James F. Hopkins

Published
2015

4. Index

Author

Henry Clay and James F. Hopkins

Published
2015

7. July-September 1822

Author

Henry Clay, James F. Hopkins, and Mary W. M. Hargreaves

Published
2015

8. April-June 1822

Author

Henry Clay, James F. Hopkins, and Mary W. M. Hargreaves

Published
2015

9. January-March 1823

Author

Henry Clay, James F. Hopkins, and Mary W. M. Hargreaves

Published
2015

10. October-December 1822

Author

Henry Clay, James F. Hopkins, and Mary W. M. Hargreaves

Published
2015

12. Frontmatter

Author

Henry Clay, James F. Hopkins, and Mary W. M. Hargreaves

Published
2015

13. PREFACE

Author

Henry Clay, James F. Hopkins, and Mary W. M. Hargreaves

Published
2015

15. 1799

Author

Henry Clay, James F. Hopkins, and Mary W. M. Hargreaves

Published
2015

16. Preface

Author

James F. Hopkins

Published
2015

18. Cover

Author

James F. Hopkins

Published
2015

19. Foreword

Author

James F. Hopkins

Published
2015

30. A comparison of very short-lived halocarbon (VSLS) and DMS aircraft measurements in the Tropical West Pacific from CAST, ATTREX and CONTRAST

Author

Stephen J. Andrews, Lucy J. Carpenter, Eric C. Apel, Elliot Atlas, Valeria Donets, James F. Hopkins, Rebecca S. Hornbrook, Alastair C. Lewis, Richard T. Lidster, Richard Lueb, Jamie Minaeian, Maria Navarro, Shalini Punjabi, Daniel Riemer, and Susan Schauffler

Abstract

We present a comparison of aircraft measurements of halogenated very short-lived substances (VSLS) and dimethyl sulphide (DMS, C2H6S) from a co-ordinated campaign in Jan/Feb 2014 in the Tropical West Pacific. Measurements were made on the NASA Global Hawk, NCAR GV HIAPER and FAAM BAe146 using four separate GC-MS instruments operated by the University of Miami (UoM), the National Centre for Atmospheric Research (NCAR) and two from the University of York (UoY), respectively. The instruments were inter-calibrated during the campaign period using two gas standards on separate scales; a NOAA SX-3581 standard representative of clean low-hydrocarbon air, and an Essex canister prepared by UoM representative of coastal air, which was higher in VSLS and hydrocarbon content. UoY and NCAR use the NOAA scale/standard for VSLS calibration and UoM use a scale based on dilutions of primary standards calibrated by GC with FID and AED (atomic emission) detection. Analysis of the NOAA SX-3581 standard resulted in good agreement for CH2Cl2, CHCl3, CHBr3, CH2Br2, CH2BrCl, CHBrCl2, CHBr2Cl, CH3I CH2ICl and CH2I2 (average RSD

Published
2016

40. The Papers of Henry Clay. Volume 4, Secretary of State, 1825

Author

Mary W. M. Hargreaves, James F. Hopkins, and Henry Clay

Subjects
Archeology, History, Government, Politics, Volume (thermodynamics), State (polity), Political economy, media_common.quotation_subject, Museology, media_common
Published
1974

43. Riders in the Night

Author

James F. Hopkins and Harry Harrison Kroll

Subjects
History
Published
1966

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