Zobrazeno 1 - 10
of 140
pro vyhledávání: '"H. Riris"'
Autor:
J. L. Laughner, G. C. Toon, J. Mendonca, C. Petri, S. Roche, D. Wunch, J.-F. Blavier, D. W. T. Griffith, P. Heikkinen, R. F. Keeling, M. Kiel, R. Kivi, C. M. Roehl, B. B. Stephens, B. C. Baier, H. Chen, Y. Choi, N. M. Deutscher, J. P. DiGangi, J. Gross, B. Herkommer, P. Jeseck, T. Laemmel, X. Lan, E. McGee, K. McKain, J. Miller, I. Morino, J. Notholt, H. Ohyama, D. F. Pollard, M. Rettinger, H. Riris, C. Rousogenous, M. K. Sha, K. Shiomi, K. Strong, R. Sussmann, Y. Té, V. A. Velazco, S. C. Wofsy, M. Zhou, P. O. Wennberg
Publikováno v:
Earth System Science Data, Vol 16, Pp 2197-2260 (2024)
The Total Carbon Column Observing Network (TCCON) measures column-average mole fractions of several greenhouse gases (GHGs), beginning in 2004, from over 30 current or past measurement sites around the world using solar absorption spectroscopy in the
Externí odkaz:
https://doaj.org/article/f7c8ac9c19f04402af11e5fe7712405c
Publikováno v:
Atmospheric Measurement Techniques, Vol 17, Pp 1061-1074 (2024)
We measured the column-averaged atmospheric CO2 mixing ratio (XCO2) to a variety of cloud tops with an airborne pulsed multi-wavelength integrated path differential absorption (IPDA) lidar during NASA's 2017 ASCENDS/ABoVE airborne campaign. Measureme
Externí odkaz:
https://doaj.org/article/18ea13e7340647d0a3598ee033475fc3
Autor:
J. B. Abshire, A. K. Ramanathan, H. Riris, G. R. Allan, X. Sun, W. E. Hasselbrack, J. Mao, S. Wu, J. Chen, K. Numata, S. R. Kawa, M. Y. M. Yang, J. DiGangi
Publikováno v:
Atmospheric Measurement Techniques, Vol 11, Pp 2001-2025 (2018)
Here we report on measurements made with an improved CO2 Sounder lidar during the ASCENDS 2014 and 2016 airborne campaigns. The changes made to the 2011 version of the lidar included incorporating a rapidly wavelength-tunable, step-locked seed lase
Externí odkaz:
https://doaj.org/article/52ad19bc425c4fa4bfecbc8b071f5c71
Autor:
J. Mao, A. Ramanathan, J. B. Abshire, S. R. Kawa, H. Riris, G. R. Allan, M. Rodriguez, W. E. Hasselbrack, X. Sun, K. Numata, J. Chen, Y. Choi, M. Y. M. Yang
Publikováno v:
Atmospheric Measurement Techniques, Vol 11, Pp 127-140 (2018)
We have measured the column-averaged atmospheric CO2 mixing ratio to a variety of cloud tops by using an airborne pulsed multi-wavelength integrated-path differential absorption (IPDA) lidar. Airborne measurements were made at altitudes up to 13 k
Externí odkaz:
https://doaj.org/article/2024ec8907584f298fe23b498f8b368b
Akademický článek
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Publikováno v:
Journal of Quantitative Spectroscopy and Radiative Transfer. 211:115-122
We present a neural network algorithm for spectroscopic retrievals of concentrations of trace gases. Using synthetic data we demonstrate that a neural network is well suited for filtering etalon fringes and provides superior performance to convention
Autor:
J. Mao, A. Ramanathan, J. B. Abshire, S. R. Kawa, H. Riris, G. R. Allan, M. Rodriguez, W. E. Hasselbrack, X. Sun, K. Numata, J. Chen, Y. Choi, M. Y. M. Yang
Publikováno v:
Atmospheric Measurement Techniques, Vol 11, Pp 127-140 (2018)
We have measured the column-averaged atmospheric CO2 mixing ratio to a variety of cloud tops by using an airborne pulsed multi-wavelength integrated-path differential absorption (IPDA) lidar. Airborne measurements were made at altitudes up to 13 km
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::edd3780ea250c8f1c3db27e8ead2c112
https://www.atmos-meas-tech.net/11/127/2018/
https://www.atmos-meas-tech.net/11/127/2018/
Autor:
Stewart Wu, Kenji Numata, Steve Li, Clark Weaver, Mike Rodriguez, William Hasselbrack, J. B. Abshire, H. Riris, Randy Kawa, Jianping Mao, Xiaoli Sun, Allan Graham
Publikováno v:
International Conference on Space Optics — ICSO 2010.
Publikováno v:
International Conference on Space Optics — ICSO 2010.
Autor:
H. Riris, J. B. Abshire, Kenji Numata, Graham Allan, Mike Rodriguez, Stewart Wu, Anand Ramanathan, William Hasselbrack, Jianping Mao, Randy Kawa, Jeff Chen, Anthony Yu, Martha Dawsey, Mark Stephens, Molly Fahey, John Burris, Gaungning Yang
Publikováno v:
Imaging and Applied Optics 2015.
Trace gases and their isotopic ratios in planetary atmospheres offer important but subtle clues as to the origins of a planet's atmosphere, hydrology, geology, and potential for biology. An orbiting laser remote sensing instrument capable of measurin