K
Kevin Schaefer
Researcher at Cooperative Institute for Research in Environmental Sciences
Publications - 126
Citations - 13744
Kevin Schaefer is an academic researcher from Cooperative Institute for Research in Environmental Sciences. The author has contributed to research in topics: Permafrost & Climate change. The author has an hindex of 48, co-authored 123 publications receiving 10813 citations. Previous affiliations of Kevin Schaefer include Institute of Arctic and Alpine Research & University of Colorado Boulder.
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Journal ArticleDOI
A model-data comparison of gross primary productivity: Results from the North American Carbon Program site synthesis
Kevin Schaefer,Christopher R. Schwalm,Christopher B. Williams,M. Altaf Arain,Alan G. Barr,Jing M. Chen,Kenneth J. Davis,Dimitre D. Dimitrov,Timothy W. Hilton,David Y. Hollinger,Elyn Humphreys,Benjamin Poulter,Brett Raczka,Andrew D. Richardson,A. K. Sahoo,Peter E. Thornton,Rodrigo Vargas,Hans Verbeeck,Ryan S. Anderson,Ian Baker,T. Andrew Black,Paul V. Bolstad,Jiquan Chen,Peter S. Curtis,Ankur R. Desai,Michael Dietze,Danilo Dragoni,Christopher M. Gough,Robert F. Grant,Lianhong Gu,Atul K. Jain,Christopher J. Kucharik,Beverly E. Law,Shuguang Liu,Erandathie Lokipitiya,Hank A. Margolis,Roser Matamala,J. Harry McCaughey,Russell K. Monson,J. William Munger,Walter C. Oechel,Changhui Peng,David Price,Daniel M. Ricciuto,William J. Riley,Nigel T. Roulet,Hanqin Tian,Christina Tonitto,Margaret S. Torn,Ensheng Weng,Xiaolu Zhou +50 more
TL;DR: In this paper, the authors evaluated simulated, daily average gross primary productivity (GPP) from 26 models against estimated GPP at 39 eddy covariance flux tower sites across the United States and Canada.
Journal ArticleDOI
The impact of the permafrost carbon feedback on global climate
Kevin Schaefer,Hugues Lantuit,Hugues Lantuit,Vladimir E. Romanovsky,Edward A. G. Schuur,Ronald Witt +5 more
TL;DR: The permafrost carbon feedback feedback (PCF) is the amplification of surface warming due to CO2 and CH4 emissions from thawing and de-degrading permaffrost.
Journal ArticleDOI
Past extreme warming events linked to massive carbon release from thawing permafrost
Robert M. DeConto,Simone Galeotti,Mark Pagani,David Tracy,Kevin Schaefer,Tingjun Zhang,Tingjun Zhang,David Pollard,David J. Beerling +8 more
TL;DR: DeConto et al. as discussed by the authors used a new astronomically calibrated cyclostratigraphic record from central Italy to show that the Early Eocene hyperthermals occurred during orbits with a combination of high eccentricity and high obliquity.
Journal ArticleDOI
A model‐data intercomparison of CO2 exchange across North America: Results from the North American Carbon Program site synthesis
Christopher R. Schwalm,Christopher B. Williams,Kevin Schaefer,Ryan S. Anderson,M. Altaf Arain,Ian Baker,Alan G. Barr,T. Andrew Black,Guangsheng Chen,Jing M. Chen,Philippe Ciais,Kenneth J. Davis,Ankur R. Desai,Michael Dietze,Danilo Dragoni,Marc Fischer,Lawrence B. Flanagan,Robert F. Grant,Lianhong Gu,David Y. Hollinger,R. Cesar Izaurralde,Christopher J. Kucharik,Peter M. Lafleur,Beverly E. Law,Longhui Li,Zhengpeng Li,Shuguang Liu,Erandathie Lokupitiya,Yiqi Luo,Siyan Ma,Hank A. Margolis,Roser Matamala,Harry McCaughey,Russell K. Monson,Walter C. Oechel,Changhui Peng,Benjamin Poulter,David Price,Dan M. Riciutto,William J. Riley,A. K. Sahoo,Michael Sprintsin,Jianfeng Sun,Hanqin Tian,Christian Tonitto,Hans Verbeeck,Shashi B. Verma +46 more
TL;DR: In this article, the authors compared observed and simulated monthly CO2 exchange from 44 eddy covariance flux towers in North America and 22 terrestrial biosphere models, and evaluated model skill as a function of drought and seasonality.
Journal ArticleDOI
The seasonal cycle of satellite chlorophyll fluorescence observations and its relationship to vegetation phenology and ecosystem atmosphere carbon exchange
Joanna Joiner,Yasuko Yoshida,Ap. Vasilkov,Kevin Schaefer,Martin Jung,Luis Guanter,Yongguang Zhang,S. R. Garrity,Elizabeth M. Middleton,Karl F. Huemmrich,Lianhong Gu,L. Belelli Marchesini +11 more
TL;DR: In this paper, the seasonal cycle of photosynthesis as estimated from satellite fluorescence retrievals at wavelengths surrounding the 740nm emission feature was examined, and the seasonality of absorbed photosynthetically-active radiation (APAR) derived with reflectances from the MODerate-resolution Imaging Spectroradiometer (MODIS).