Spatial patterns and recent trends in cloud fraction and cloud‐related diffuse radiation in Amazonia

@article{Butt2009SpatialPA,
  title={Spatial patterns and recent trends in cloud fraction and cloud‐related diffuse radiation in Amazonia},
  author={Nathalie Butt and Mark G. New and Gil Lizcano and Yadvinder S. Malhi},
  journal={Journal of Geophysical Research},
  year={2009},
  volume={114}
}
declined at a rate of 0.3% yr � 1 , and the wet season decline was 0.1% yr � 1 . In the west of the region a 1% increase in CRDRP is indicated. Changes in forest composition and productivity may be linked to changes in CRDRP in that decreases in cloud cover in sunny regions or dry seasons may cause a decline in productivity, whereas declines in cloud cover in cloudy regions, or during cloudy seasons, may cause an increase in productivity. 

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References

SHOWING 1-10 OF 36 REFERENCES
Cloud cover limits net CO2 uptake and growth of a rainforest tree during tropical rainy seasons
TLDR
Light, rather than water, temperature, or leaf nitrogen, was the primary factor limiting CO2 uptake during the rainy season, and photosynthesis, vegetative growth, and reproduction increased significantly. Expand
Climate-Driven Increases in Global Terrestrial Net Primary Production from 1982 to 1999
TLDR
It is indicated that global changes in climate have eased several critical climatic constraints to plant growth, such that net primary production increased 6% (3.4 petagrams of carbon over 18 years) globally. Expand
Spatial patterns and recent trends in the climate of tropical rainforest regions.
  • Y. Malhi, James Wright
  • Geography, Medicine
  • Philosophical transactions of the Royal Society of London. Series B, Biological sciences
  • 2004
TLDR
An analysis of the mean climate and climatic trends of tropical rainforest regions over the period 1960-1998, with the aid of explicit maps of forest cover and climatological databases, finds the El Niño-Southern Oscillation is the primary driver of temperature variations across the tropics and of precipitation fluctuations for large areas of the Americas and southeast Asia. Expand
Arguments against a physical long‐term trend in global ISCCP cloud amounts
[1] The International Satellite Cloud Climatology Project (ISCCP) multi-decadal record of cloudiness exhibits a well-known global decrease in cloud amounts. This downward trend has recently been usedExpand
A Survey of Changes in Cloud Cover and Cloud Types over Land from Surface Observations, 1971–96
From a dataset of weather observations from land stations worldwide, about 5400 stations were selected as having long periods of record with cloud-type information; they cover all continents and manyExpand
Photosynthetic and Water Use Efficiency Responses to Diffuse Radiation by an Aspen-Dominated Northern Hardwood Forest
Clouds can exert strong effects on ecosystem CO2 and water vapor fluxes and may be important determinants of terrestrial primary production. We used three years of eddy-covariance and meteorologicalExpand
The effects of biomass burning aerosols and clouds on the CO2 flux in Amazonia
Aerosol particles associated with biomass burning emissions affect the surface radiative budget and net ecosystem exchange (NEE) over large areas in Amazonia during the dry season. We analysed CO2Expand
Smoke Invigoration Versus Inhibition of Clouds over the Amazon
TLDR
Focusing on the Amazon, it is shown how a feedback between the optical properties of aerosols and the cloud fraction can modify the aerosol forcing, changing the total radiative energy and redistributing it over the atmospheric column. Expand
Assessing Evidence for a Pervasive Alteration in Tropical Tree Communities
TLDR
The results do not support the hypothesis that fast-growing species are consistently increasing in dominance in tropical tree communities, and suggest that plots may be simultaneously recovering from past disturbances and affected by changes in resource availability. Expand
Smoke and Pollution Aerosol Effect on Cloud Cover
TLDR
Using solar measurements from Aerosol Robotic Network sites around the globe, a increase in cloud cover with an increase in the aerosol column concentration and an inverse dependence on the aerosols absorption of sunlight is shown. Expand
...
1
2
3
4
...