Zobrazeno 1 - 10
of 63
pro vyhledávání: '"G. J. Collatz"'
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 9609-9628 (2021)
The ability to monitor and understand natural and anthropogenic variability in atmospheric carbon dioxide (CO2) is a growing need of many stakeholders across the world. Systems that assimilate satellite observations, given their short latency and den
Externí odkaz:
https://doaj.org/article/d8ed6e92e619490d84c251870186e052
Autor:
J. S. Wang, S. R. Kawa, G. J. Collatz, M. Sasakawa, L. V. Gatti, T. Machida, Y. Liu, M. E. Manyin
Publikováno v:
Atmospheric Chemistry and Physics, Vol 18, Pp 11097-11124 (2018)
The precise contribution of the two major sinks for anthropogenic CO2 emissions, terrestrial vegetation and the ocean, and their location and year-to-year variability are not well understood. Top-down estimates of the spatiotemporal variations in
Externí odkaz:
https://doaj.org/article/b37626411b044c61a3b763c92508bce6
Autor:
G. R. van der Werf, J. T. Randerson, L. Giglio, T. T. van Leeuwen, Y. Chen, B. M. Rogers, M. Mu, M. J. E. van Marle, D. C. Morton, G. J. Collatz, R. J. Yokelson, P. S. Kasibhatla
Publikováno v:
Earth System Science Data, Vol 9, Pp 697-720 (2017)
Climate, land use, and other anthropogenic and natural drivers have the potential to influence fire dynamics in many regions. To develop a mechanistic understanding of the changing role of these drivers and their impact on atmospheric composition,
Externí odkaz:
https://doaj.org/article/283a698748b34ba599084e59d9e12e64
Autor:
W. Buermann, C. Beaulieu, B. Parida, D. Medvigy, G. J. Collatz, J. Sheffield, J. L. Sarmiento
Publikováno v:
Biogeosciences, Vol 13, Iss 5, Pp 1597-1607 (2016)
The world's ocean and land ecosystems act as sinks for anthropogenic CO2, and over the last half century their combined sink strength grew steadily with increasing CO2 emissions. Recent analyses of the global carbon budget, however, have uncovered an
Externí odkaz:
https://doaj.org/article/b249e625ac66443191a08bd2fe7f115e
Publikováno v:
Biogeosciences, Vol 10, Iss 1, Pp 247-260 (2013)
Climate regulates fire activity through the buildup and drying of fuels and the conditions for fire ignition and spread. Understanding the dynamics of contemporary climate–fire relationships at national and sub-national scales is critical to assess
Externí odkaz:
https://doaj.org/article/53967aabe59c4c04839149156f56b02b
Publikováno v:
Biogeosciences, Vol 8, Iss 9, Pp 2493-2506 (2011)
The El Niño Southern Oscillation is the dominant year-to-year mode of global climate variability. El Niño effects on terrestrial carbon cycling are mediated by associated climate anomalies, primarily drought, influencing fire emissions and biotic n
Externí odkaz:
https://doaj.org/article/7f1656c16f6940f5a6d8b01e5cb86a7b
Autor:
G. R. van der Werf, J. T. Randerson, L. Giglio, G. J. Collatz, M. Mu, P. S. Kasibhatla, D. C. Morton, R. S. DeFries, Y. Jin, T. T. van Leeuwen
Publikováno v:
Atmospheric Chemistry and Physics, Vol 10, Iss 23, Pp 11707-11735 (2010)
New burned area datasets and top-down constraints from atmospheric concentration measurements of pyrogenic gases have decreased the large uncertainty in fire emissions estimates. However, significant gaps remain in our understanding of the contributi
Externí odkaz:
https://doaj.org/article/1b068c72d40d40a891b2634a73492103
Autor:
N. Carvalhais, M. Reichstein, G. J. Collatz, M. D. Mahecha, M. Migliavacca, C. S. R. Neigh, E. Tomelleri, A. A. Benali, D. Papale, J. Seixas
Publikováno v:
Biogeosciences, Vol 7, Iss 11, Pp 3707-3729 (2010)
Quantification of ecosystem carbon pools is a fundamental requirement for estimating carbon fluxes and for addressing the dynamics and responses of the terrestrial carbon cycle to environmental drivers. The initial estimates of carbon pools in terres
Externí odkaz:
https://doaj.org/article/069a8d0992fe42709f1c53c580bd9596
Autor:
L. Giglio, J. T. Randerson, G. R. van der Werf, P. S. Kasibhatla, G. J. Collatz, D. C. Morton, R. S. DeFries
Publikováno v:
Biogeosciences, Vol 7, Iss 3, Pp 1171-1186 (2010)
Long term, high quality estimates of burned area are needed for improving both prognostic and diagnostic fire emissions models and for assessing feedbacks between fire and the climate system. We developed global, monthly burned area estimates aggrega
Externí odkaz:
https://doaj.org/article/202f2ce3e51442aeb5dcf5a78cf224b8
Autor:
G. R. van der Werf, D. C. Morton, R. S. DeFries, L. Giglio, J. T. Randerson, G. J. Collatz, P. S. Kasibhatla
Publikováno v:
Biogeosciences, Vol 6, Iss 2, Pp 235-249 (2009)
Tropical deforestation contributes to the build-up of atmospheric carbon dioxide in the atmosphere. Within the deforestation process, fire is frequently used to eliminate biomass in preparation for agricultural use. Quantifying these deforestation-in
Externí odkaz:
https://doaj.org/article/864102c8a35d481eadbc48d60757a505