Zobrazeno 1 - 10
of 416
pro vyhledávání: '"J. Mendonca"'
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
Autor:
N. Mostafavi Pak, J. K. Hedelius, S. Roche, L. Cunningham, B. Baier, C. Sweeney, C. Roehl, J. Laughner, G. Toon, P. Wennberg, H. Parker, C. Arrowsmith, J. Mendonca, P. Fogal, T. Wizenberg, B. Herrera, K. Strong, K. A. Walker, F. Vogel, D. Wunch
Publikováno v:
Atmospheric Measurement Techniques, Vol 16, Pp 1239-1261 (2023)
EM27/SUN devices are portable solar-viewing Fourier transform spectrometers (FTSs) that are being widely used to constrain measurements of greenhouse gas emissions and validate satellite trace gas measurements. On a 6-week-long campaign in the summer
Externí odkaz:
https://doaj.org/article/f2a0d507874842c48e1af92ed1c9d123
Autor:
J. Mendonca, R. Nassar, C. W. O'Dell, R. Kivi, I. Morino, J. Notholt, C. Petri, K. Strong, D. Wunch
Publikováno v:
Atmospheric Measurement Techniques, Vol 14, Pp 7511-7524 (2021)
Satellite retrievals of XCO2 at northern high latitudes currently have sparser coverage and lower data quality than most other regions of the world. We use a neural network (NN) to filter Orbiting Carbon Observatory 2 (OCO-2) B10 bias-corrected XCO2
Externí odkaz:
https://doaj.org/article/2d281de1674742429e37e44d1d0ac717
Autor:
S. Roche, K. Strong, D. Wunch, J. Mendonca, C. Sweeney, B. Baier, S. C. Biraud, J. L. Laughner, G. C. Toon, B. J. Connor
Publikováno v:
Atmospheric Measurement Techniques, Vol 14, Pp 3087-3118 (2021)
We evaluate vertical profile retrievals of CO2 from 0.02 cm−1 resolution ground-based near-infrared solar absorption spectra with the GFIT2 algorithm, using improved spectroscopic line lists and line shapes. With these improvements, CO2 profiles we
Externí odkaz:
https://doaj.org/article/5721fd4c9cfb4c0882a8be450bcd5fa2
Autor:
J. Mendonca, K. Strong, D. Wunch, G. C. Toon, D. A. Long, J. T. Hodges, V. T. Sironneau, J. E. Franklin
Publikováno v:
Atmospheric Measurement Techniques, Vol 12, Pp 35-50 (2019)
High-resolution, laboratory, absorption spectra of the a1Δg←X3Σg- oxygen (O2) band measured using cavity ring-down spectroscopy were fitted using the Voigt and speed-dependent Voigt line shapes. We found that the speed-dependent Voigt line shape
Externí odkaz:
https://doaj.org/article/95db25398d784e62a501248d5ee0a035
Autor:
D. Wunch, P. O. Wennberg, G. Osterman, B. Fisher, B. Naylor, C. M. Roehl, C. O'Dell, L. Mandrake, C. Viatte, M. Kiel, D. W. T. Griffith, N. M. Deutscher, V. A. Velazco, J. Notholt, T. Warneke, C. Petri, M. De Maziere, M. K. Sha, R. Sussmann, M. Rettinger, D. Pollard, J. Robinson, I. Morino, O. Uchino, F. Hase, T. Blumenstock, D. G. Feist, S. G. Arnold, K. Strong, J. Mendonca, R. Kivi, P. Heikkinen, L. Iraci, J. Podolske, P. W. Hillyard, S. Kawakami, M. K. Dubey, H. A. Parker, E. Sepulveda, O. E. García, Y. Te, P. Jeseck, M. R. Gunson, D. Crisp, A. Eldering
Publikováno v:
Atmospheric Measurement Techniques, Vol 10, Pp 2209-2238 (2017)
NASA's Orbiting Carbon Observatory-2 (OCO-2) has been measuring carbon dioxide column-averaged dry-air mole fraction, XCO2, in the Earth's atmosphere for over 2 years. In this paper, we describe the comparisons between the first major release of t
Externí odkaz:
https://doaj.org/article/18161eb7fb1544ebb65b9f94d609d628
Autor:
D. A. Belikov, S. Maksyutov, A. Ganshin, R. Zhuravlev, N. M. Deutscher, D. Wunch, D. G. Feist, I. Morino, R. J. Parker, K. Strong, Y. Yoshida, A. Bril, S. Oshchepkov, H. Boesch, M. K. Dubey, D. Griffith, W. Hewson, R. Kivi, J. Mendonca, J. Notholt, M. Schneider, R. Sussmann, V. A. Velazco, S. Aoki
Publikováno v:
Atmospheric Chemistry and Physics, Vol 17, Iss 1, Pp 143-157 (2017)
The Total Carbon Column Observing Network (TCCON) is a network of ground-based Fourier transform spectrometers (FTSs) that record near-infrared (NIR) spectra of the sun. From these spectra, accurate and precise observations of CO2 column-averaged dry
Externí odkaz:
https://doaj.org/article/2bbed6904d54408e84d74ada38ca0b19
Autor:
Y. Wang, N. M. Deutscher, M. Palm, T. Warneke, J. Notholt, I. Baker, J. Berry, P. Suntharalingam, N. Jones, E. Mahieu, B. Lejeune, J. Hannigan, S. Conway, J. Mendonca, K. Strong, J. E. Campbell, A. Wolf, S. Kremser
Publikováno v:
Atmospheric Chemistry and Physics, Vol 16, Pp 2123-2138 (2016)
Understanding carbon dioxide (CO2) biospheric processes is of great importance because the terrestrial exchange drives the seasonal and interannual variability of CO2 in the atmosphere. Atmospheric inversions based on CO2 concentration measurement
Externí odkaz:
https://doaj.org/article/3dc7d6e6aa9c42a9a8c66c9ef445d37d
Autor:
S. Barthlott, M. Schneider, F. Hase, A. Wiegele, E. Christner, Y. González, T. Blumenstock, S. Dohe, O. E. García, E. Sepúlveda, K. Strong, J. Mendonca, D. Weaver, M. Palm, N. M. Deutscher, T. Warneke, J. Notholt, B. Lejeune, E. Mahieu, N. Jones, D. W. T. Griffith, V. A. Velazco, D. Smale, J. Robinson, R. Kivi, P. Heikkinen, U. Raffalski
Publikováno v:
Atmospheric Measurement Techniques, Vol 8, Iss 3, Pp 1555-1573 (2015)
Within the NDACC (Network for the Detection of Atmospheric Composition Change), more than 20 FTIR (Fourier-transform infrared) spectrometers, spread worldwide, provide long-term data records of many atmospheric trace gases. We present a method that u
Externí odkaz:
https://doaj.org/article/ced5c1b33af440a9bcf59259a436b86a
Autor:
Y. Yoshida, N. Kikuchi, I. Morino, O. Uchino, S. Oshchepkov, A. Bril, T. Saeki, N. Schutgens, G. C. Toon, D. Wunch, C. M. Roehl, P. O. Wennberg, D. W. T. Griffith, N. M. Deutscher, T. Warneke, J. Notholt, J. Robinson, V. Sherlock, B. Connor, M. Rettinger, R. Sussmann, P. Ahonen, P. Heikkinen, E. Kyrö, J. Mendonca, K. Strong, F. Hase, S. Dohe, T. Yokota
Publikováno v:
Atmospheric Measurement Techniques, Vol 6, Iss 6, Pp 1533-1547 (2013)
The column-averaged dry-air mole fractions of carbon dioxide and methane (XCO2 and XCH4) have been retrieved from Greenhouse gases Observing SATellite (GOSAT) Short-Wavelength InfraRed (SWIR) observations and released as a SWIR L2 product from the Na
Externí odkaz:
https://doaj.org/article/9d14ffd4150d48b28523668562361fde