Tropical forests are an important part of global water and energy cycles, but the mechanisms that drive seasonality of their land-atmosphere exchanges have proven challenging to capture in models. Here, we (1) report the seasonality of fluxes of latent heat (LE), sensible heat (H), and outgoing short and longwave radiation at four …
Journal: Global Change Biology, Volume 27 (9): 1802-1819 (2021). DOI: https://doi.org/10.1111/gcb.15555 Sites: BR-Cax, BR-Ji3, BR-Ma2, BR-Sa1
Actual evapotranspiration (ET) is a major component of the water balance. While several international flux measurement programs have been executed in the tropical rain forest of the Amazon, those measurements represent the evaporative process at a few selected sites only. The aim of this study is to obtain the spatial distribution …
Journal: Ecological Processes, Volume 8 (1): 20 (2019). DOI: 10.1186/s13717-019-0158-8 Sites: BR-Ma2, BR-Sa1, BR-Sa3
Actual evapotranspiration (ET) is a major component of the water balance. While several international flux measurement programs have been executed in the tropical rain forest of the Amazon, those measurements represent the evaporative process at a few selected sites only. The aim of this study is to obtain the spatial distribution …
Journal: Ecological Processes, Volume 8 (1): (2019). DOI: https://doi.org/10.1186/s13717-019-0158-8 Sites: BR-Ma2, BR-Sa1, BR-Sa3
To predict forest response to long-term climate change with high confidence requires that dynamic global vegetation models (DGVMs) be successfully tested against ecosystem response to short-term variations in environmental drivers, including regular seasonal patterns. Here, we used an integrated dataset from four forests in the Brasil …
Journal: Global Change Biology, Volume 23 (1): 191-208 (2017). DOI: https://doi.org/10.1111/gcb.13442 Sites: BR-Cax, BR-Ji3, BR-Ma2, BR-Sa1
Several lines of evidence suggest that the warming climate plays a vital role in driving certain types of extreme weather. The impact of warming and of extreme weather on forest carbon assimilation capacity is poorly known. Filling this knowledge gap is critical towards understanding …
Journal: Environmental Research Letters, Volume 9 (6): 065002-n/a (2014). DOI: 10.1088/1748-9326/9/6/065002 Sites: BR-Ma2
The energy balance at most surface-atmosphere flux research sites remains unclosed. The mechanisms underlying the discrepancy between measured energy inputs and outputs across the global FLUXNET tower network are still under debate. Recent reviews have identified …
Journal: Agricultural And Forest Meteorology, Volume 171-172: 137-152 (2013). DOI: 10.1016/j.agrformet.2012.11.004 Sites: BR-Ma2
The Community Land Model version 4 (CLM4) overestimates gross primary production (GPP) compared with data-driven estimates and other process models. We use global, spatially gridded GPP and latent heat flux …
Journal: Journal Of Geophysical Research: Biogeosciences, Volume 116 (G2): n/a-n/a (2011). DOI: 10.1029/2010jg001593 Sites: BR-Ma2
The intensification of the hydrological cycle, with an observed and modeled increase in drought incidence and severity, underscores the need to quantify drought effects on …
Journal: Global Change Biology, Volume 16 (2): 657-670 (2010). DOI: 10.1111/j.1365-2486.2009.01991.x Sites: BR-Ma2
The measured net ecosystem exchange (NEE) of CO2 between the ecosystem and the atmosphere reflects the balance between gross CO2 assimilation [gross primary production (GPP)] and ecosystem respiration (Reco). For understanding the mechanistic responses of ecosystem processes to environmental change …
Journal: Global Change Biology, Volume 16 (1): 187-208 (2010). DOI: 10.1111/j.1365-2486.2009.02041.x Sites: BR-Ma2
There are a number of methods that can be used to help assess carbon budgets at the site to continental scales. Eddy covariance (EC) networks have been developed over the last decade and have been used to make many advances in our understanding. However, eddy covariance …
Journal: Agriculture, Ecosystems & Environment, Volume 139 (3): 302-315 (2010). DOI: 10.1016/j.agee.2010.04.004 Sites: BR-Ma2