Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Gary D. Spiers"'
Autor:
Graziela R. Keller, Robert A. Rosenberg, Gary D. Spiers, Shanshan Yu, Aronne Merrelli, Christopher W. O'Dell, Richard A. Lee, David Crisp, Annmarie Eldering, Abhishek Chatterjee
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing. 60:1-18
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing. 57:958-971
We describe the data processing and analysis algorithms used for high-precision retrievals of CO2 weighted-column mixing ratio and 2- $\mu \text{m}$ surface reflectance from the Carbon Dioxide Laser Absorption Spectrometer (CO2LAS). The CO2LAS at the
Autor:
Jehhal Liu, Henry Wegener, Joseph Trinh, David C Barr, James Howell, Andrew J. Sutton, Daniel A. Shaddock, C. Bogan, Bernd Zender, Mike A Davis, Gerhard Heinzel, Micah Kruger, Duo Wang, Frank Gilles, Martin S. Gilbert, R. Flatscher, M Herding, Christopher Woodruff, Anton Lebeda, Mark Katsumura, Benjamin Sheard, Carl Christian Liebe, S. Dubovitsky, Katrin Dahl, Rabi T. Wang, Christoph Mahrdt, Daniel Schütze, Frank Heine, Marcus Zimmermann, Kenneth Clark, Steve Windisch, Nicolas Grossard, Philipp Hager, Michelle Stephens, Brian Bachman Okihiro, Jerome Hauden, Kameron Larsen, Karsten Danzmann, William M. Folkner, Christian Dahl, Brent Ware, Burghardt Guenther, Glenn de Vine, Robert Spero, Andreas Eckardt, Malte Misfeldt, Joshua Ravich, Claus Braxmaier, Gary D. Spiers, Arnold Lebeda, J. Reiche, Gretchen Reavis, Thomas Ester, Frank Flechtner, Martin Hinz, Alexander Koch, Alexander Abramovici, Jeffrey Dickson, Andreas Baatzsch, Christoph Seiter, Robert Pierce, Kai Voss, Marina Kaufer, K. Nicklaus, Kirk McKenzie, Michael J Burke, Klaus Abich, Maxime P Bize, Phillip R Morton, Alex Murray, Vitali Müller, T. Mangoldt, Lynette Lobmeyer, William Klipstein, Michael Sileo, Martin Gohlke, Germán Fernández Barranco, Don J Nguyen, Bengie Amparan, Thomas Leikert, G. Stede, Samuel Francis, Josep Sanjuan
Publikováno v:
Physical Review Letters
Physical Review Letters 123 (2019), Nr. 3
Physical Review Letters 123 (2019), Nr. 3
The Laser Ranging Interferometer (LRI) instrument on the Gravity Recovery and Climate Experiment (GRACE) Follow-On mission has provided the first laser interferometric range measurements between remote spacecraft, separated by approximately 220 km. A
Autor:
Thomas E. Taylor, David Crisp, Ralph R. Basilio, Vance R. Haemmerle, Thomas P. Kurosu, Richard A. M. Lee, R. R. Nelson, Coleen M. Roehl, Shanshan Yu, Peter Somkuti, Cathy To, Daniel Cervantes, Paul O. Wennberg, Gregory B. Osterman, Gary D. Spiers, Brendan Fisher, Aronne Merrelli, Robert Rosenberg, Christian Frankenberg, Yuliya Marchetti, Robert Schneider, Amruta Yelamanchili, Cecilia Cheng, Graziela R. Keller, Matthew Bennett, Joshua L. Laughner, Annmarie Eldering, Lan Dang, Matthäus Kiel, Christopher Wells, Ryan Pavlick, Albert Y. Chang, Christopher W. O'Dell
Publikováno v:
Remote Sensing of Environment. 251:112032
NASA's Orbiting Carbon Observatory-3 (OCO-3) was installed on the International Space Station (ISS) on 10 May 2019. OCO-3 combines the flight spare spectrometer from the Orbiting Carbon Observatory-2 (OCO-2) mission, which has been in operation since
Publikováno v:
Journal of Atmospheric and Oceanic Technology. 31:404-421
This paper provides atmospheric CO2 column abundance measurement results from a summer 2011 series of flights of a 2.05-μm laser absorption spectrometer on the NASA DC-8 research aircraft. The integrated path differential absorption (IPDA) method is
Publikováno v:
EPJ Web of Conferences, Vol 119, p 03001 (2016)
The JPL airborne Laser Absorption Spectrometer instrument has been flown several times in the 2007-2011 time frame for the purpose of measuring CO2 mixing ratios in the lower atmosphere. The four most recent flight campaigns were on the NASA DC-8 res
Publikováno v:
Journal of Quantitative Spectroscopy and Radiative Transfer. 113:739-748
Inclusion of line-mixing into spectroscopic models is required for precise and accurate dry-mole-fraction column CO 2 retrievals from a satellite instrument. We measure first-order line-mixing parameters of thirteen 12 CO 2 20 0 1 3 ←00 0 0 CO 2 tr
Autor:
Gary D. Spiers
Publikováno v:
Imaging and Applied Optics 2015.
Publikováno v:
Applied Optics. 55:1978
We report airborne measurements of lidar directional reflectance (backscatter) from land surfaces at a wavelength in the 2.05 μm CO₂ absorption band, with emphasis on snow-covered surfaces in various natural environments. Lidar backscatter measure
Autor:
Gary D. Spiers, Edward V. Browell, Mark W. Phillips, Joseph C. Jacob, Robert T. Menzies, Yonghoon Choi, Lance E. Christensen
Publikováno v:
Applied optics. 50(14)
We report airborne measurements of CO(2) column abundance conducted during two 2009 campaigns using a 2.05 μm laser absorption spectrometer. The two flight campaigns took place in the California Mojave desert and in Oklahoma. The integrated path dif