edu.ucar.opensky::articles:19700 UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact 2025-12-26T02:31:54.027416 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) https://n2t.org/ark:/85065/d7xg9sxc Impact of fire on global land surface air temperature and energy budget for the 20th century due to changes within ecosystems 2017-04-01T00:00:00Z publication https://n2t.org/ark:/85065/d7xg9sxc https://doi.org/10.1088/1748-9326/aa6685 Li, F. author Lawrence, David M. author Bond-Lamberty, B. author UCAR/NCAR - Library publisher Fire is a global phenomenon and tightly interacts with the biosphere and climate. This study provides the first quantitative assessment and understanding of fire's influence on the global annual land surface air temperature and energy budget through its impact on terrestrial ecosystems. Fire impacts are quantified by comparing fire-on and fire-off simulations with the Community Earth System Model (CESM). Results show that, for the 20th century average, fireinduced changes in terrestrial ecosystems significantly increase global land annual mean surface air temperature by 0.18 degrees C, decrease surface net radiation and latent heat flux by 1.08 W m(-2) and 0.99 W m(-2), respectively, and have limited influence on sensible heat flux (-0.11 W m(-2)) and ground heat flux (+0.02 W m(-2)). Fire impacts are most clearly seen in the tropical savannas. Our analyses suggest that fire increases surface air temperature predominantly by reducing latent heat flux, mainly due to fire-induced damage to the vegetation canopy, and decreases net radiation primarily because fire-induced surface warming significantly increases upward surface longwave radiation. This study provides an integrated estimate of fire and induced changes in ecosystems, climate, and energy budget at a global scale, and emphasizes the importance of a consistent and integrated understanding of fire effects. UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact PDF Text theme Resource Type 2016-01-01T00:00:00Z publication Copyright 2017 IOP Publishing Ltd. None eng geoscientificInformation