Zobrazeno 1 - 10
of 74
pro vyhledávání: '"J B Fisher"'
Autor:
D N Huntzinger, K Schaefer, C Schwalm, J B Fisher, D Hayes, E Stofferahn, J Carey, A M Michalak, Y Wei, A K Jain, H Kolus, J Mao, B Poulter, X Shi, J Tang, H Tian
Publikováno v:
Environmental Research Letters, Vol 15, Iss 2, p 025005 (2020)
Given the magnitude of soil carbon stocks in northern ecosystems, and the vulnerability of these stocks to climate warming, land surface models must accurately represent soil carbon dynamics in these regions. We evaluate soil carbon stocks and turnov
Externí odkaz:
https://doaj.org/article/cd6753a9ff52427f975052c3a5f04089
Autor:
P. C. Stoy, T. S. El-Madany, J. B. Fisher, P. Gentine, T. Gerken, S. P. Good, A. Klosterhalfen, S. Liu, D. G. Miralles, O. Perez-Priego, A. J. Rigden, T. H. Skaggs, G. Wohlfahrt, R. G. Anderson, A. M. J. Coenders-Gerrits, M. Jung, W. H. Maes, I. Mammarella, M. Mauder, M. Migliavacca, J. A. Nelson, R. Poyatos, M. Reichstein, R. L. Scott, S. Wolf
Publikováno v:
Biogeosciences, Vol 16, Pp 3747-3775 (2019)
Evaporation (E) and transpiration (T) respond differently to ongoing changes in climate, atmospheric composition, and land use. It is difficult to partition ecosystem-scale evapotranspiration (ET) measurements into E and T, which makes it difficult t
Externí odkaz:
https://doaj.org/article/e29a5322b10c4e0088c414eb119ee725
Autor:
R. R. Bogue, F. M. Schwandner, J. B. Fisher, R. Pavlick, T. S. Magney, C. A. Famiglietti, K. Cawse-Nicholson, V. Yadav, J. P. Linick, G. B. North, E. Duarte
Publikováno v:
Biogeosciences, Vol 16, Pp 1343-1360 (2019)
We explore the use of active volcanoes to determine the short- and long-term effects of elevated CO2 on tropical trees. Active volcanoes continuously but variably emit CO2 through diffuse emissions on their flanks, exposing the overlying ecosystems t
Externí odkaz:
https://doaj.org/article/d828ce46737043b68951d19ea9b7d5f8
Publikováno v:
Biogeosciences, Vol 16, Pp 457-465 (2019)
The extent to which terrestrial ecosystems slow climate change by sequestering carbon hinges in part on nutrient limitation. We used a coupled carbon–climate model that accounts for the carbon cost to plants of supporting nitrogen-acquiring microbi
Externí odkaz:
https://doaj.org/article/389ff833cbc74a2fbf73b53c9f80b23e
Autor:
K. Cawse-Nicholson, J. B. Fisher, C. A. Famiglietti, A. Braverman, F. M. Schwandner, J. L. Lewicki, P. A. Townsend, D. S. Schimel, R. Pavlick, K. J. Bormann, A. Ferraz, E. L. Kang, P. Ma, R. R. Bogue, T. Youmans, D. C. Pieri
Publikováno v:
Biogeosciences, Vol 15, Pp 7403-7418 (2018)
We present an exploratory study examining the use of airborne remote-sensing observations to detect ecological responses to elevated CO2 emissions from active volcanic systems. To evaluate these ecosystem responses, existing spectroscopic, thermal, a
Externí odkaz:
https://doaj.org/article/8fc7b0fe4a3f485fa7b4520011eb52b2
Publikováno v:
Hydrology and Earth System Sciences, Vol 22, Pp 4513-4533 (2018)
An inverse error variance weighting of the anomalies of three terrestrial evaporation (ET) products from the WACMOS-ET project based on FLUXNET sites is presented. The three ET models were run daily and at a resolution of 25 km for 2002–2007,
Externí odkaz:
https://doaj.org/article/2ae4025840d84dfeafc9ce0cf0d7ed82
Publikováno v:
Biology Open, Vol 6, Iss 7, Pp 1084-1095 (2017)
Protocols have been established that direct differentiation of human pluripotent stem cells into a variety of cell types, including the endoderm and its derivatives. This model of differentiation has been useful for investigating the molecular mechan
Externí odkaz:
https://doaj.org/article/7d10ea17982840e7af16b0093cd8ceb0
Autor:
D. N. Huntzinger, A. M. Michalak, C. Schwalm, P. Ciais, A. W. King, Y. Fang, K. Schaefer, Y. Wei, R. B. Cook, J. B. Fisher, D. Hayes, M. Huang, A. Ito, A. K. Jain, H. Lei, C. Lu, F. Maignan, J. Mao, N. Parazoo, S. Peng, B. Poulter, D. Ricciuto, X. Shi, H. Tian, W. Wang, N. Zeng, F. Zhao
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
Abstract Terrestrial ecosystems play a vital role in regulating the accumulation of carbon (C) in the atmosphere. Understanding the factors controlling land C uptake is critical for reducing uncertainties in projections of future climate. The relativ
Externí odkaz:
https://doaj.org/article/48391161281440d180e9a93859b0a888
Publikováno v:
Biogeosciences, Vol 13, Iss 14, Pp 4271-4277 (2016)
The land surface provides a boundary condition to atmospheric forward and flux inversion models. These models require prior estimates of CO2 fluxes at relatively high temporal resolutions (e.g., 3-hourly) because of the high frequency of atmospheric
Externí odkaz:
https://doaj.org/article/4fec3ed1dbb44d269a06b031d9f7816a
Autor:
D. G. Miralles, C. Jiménez, M. Jung, D. Michel, A. Ershadi, M. F. McCabe, M. Hirschi, B. Martens, A. J. Dolman, J. B. Fisher, Q. Mu, S. I. Seneviratne, E. F. Wood, D. Fernández-Prieto
Publikováno v:
Hydrology and Earth System Sciences, Vol 20, Iss 2, Pp 823-842 (2016)
The WAter Cycle Multi-mission Observation Strategy – EvapoTranspiration (WACMOS-ET) project aims to advance the development of land evaporation estimates on global and regional scales. Its main objective is the derivation, validation, and intercomp
Externí odkaz:
https://doaj.org/article/54a4def3aff44954a7c3ccbba8637aab