Back to Search
Start Over
A few extreme events dominate global interannual variability in gross primary production
- Source :
- Environmental Research Letters, Zscheischler, J; Mahechal, M D; von Buttlar, J; Harmeling, S; Jung, M; Rammig, A; et al.(2014). A few extreme events dominate global interannual variability in gross primary production. Environmental Research Letters. UC Irvine: Department of Earth System Science, UCI. Retrieved from: http://www.escholarship.org/uc/item/6wt4x2ss, Environmental Research Letters, 9 (3), Zscheischler, J; Mahecha, MD; Von Buttlar, J; Harmeling, S; Jung, M; Rammig, A; et al.(2014). A few extreme events dominate global interannual variability in gross primary production. Environmental Research Letters, 9(3). doi: 10.1088/1748-9326/9/3/035001. UC Irvine: Retrieved from: http://www.escholarship.org/uc/item/9mr82724
- Publication Year :
- 2014
- Publisher :
- Bristol : IOP Publishing, 2014.
-
Abstract
- Understanding the impacts of climate extremes on the carbon cycle is important for quantifying the carbon-cycle climate feedback and highly relevant to climate change assessments. Climate extremes and fires can have severe regional effects, but a spatially explicit global impact assessment is still lacking. Here, we directly quantify spatiotemporal contiguous extreme anomalies in four global data sets of gross primary production (GPP) over the last 30 years. We find that positive and negative GPP extremes occurring on 7% of the spatiotemporal domain explain 78% of the global interannual variation in GPP and a significant fraction of variation in the net carbon flux. The largest thousand negative GPP extremes during 1982-2011 (4.3% of the data) account for a decrease in photosynthetic carbon uptake of about 3.5 Pg C yr-1, with most events being attributable to water scarcity. The results imply that it is essential to understand the nature and causes of extremes to understand current and future GPP variability. © 2014 IOP Publishing Ltd.
- Subjects :
- 0106 biological sciences
010504 meteorology & atmospheric sciences
Climate change
Spatiotemporal extreme events
GPP
Power law
010603 evolutionary biology
01 natural sciences
Water scarcity
Carbon cycle
MD Multidisciplinary
Physical Sciences and Mathematics
Meteorology & Atmospheric Sciences
0105 earth and related environmental sciences
General Environmental Science
Carbon flux
power law
Renewable Energy, Sustainability and the Environment
Impact assessment
Public Health, Environmental and Occupational Health
Extreme events
Primary production
spatiotemporal extreme events
Climate change assessment
Gross primary production
Interannual variability
Interannual variation
Spatio-temporal domains
13. Climate action
Climatology
Environmental science
Climate extremes
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Environmental Research Letters, Zscheischler, J; Mahechal, M D; von Buttlar, J; Harmeling, S; Jung, M; Rammig, A; et al.(2014). A few extreme events dominate global interannual variability in gross primary production. Environmental Research Letters. UC Irvine: Department of Earth System Science, UCI. Retrieved from: http://www.escholarship.org/uc/item/6wt4x2ss, Environmental Research Letters, 9 (3), Zscheischler, J; Mahecha, MD; Von Buttlar, J; Harmeling, S; Jung, M; Rammig, A; et al.(2014). A few extreme events dominate global interannual variability in gross primary production. Environmental Research Letters, 9(3). doi: 10.1088/1748-9326/9/3/035001. UC Irvine: Retrieved from: http://www.escholarship.org/uc/item/9mr82724
- Accession number :
- edsair.doi.dedup.....c288e3889a19684b8170bf962b63a730
- Full Text :
- https://doi.org/10.34657/146