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CO2 Higher Today Than Last 2.1 Million Years--Study Offers Detailed Look at Past Greenhouse Gas Levels（图）
CO2 Higher Today Than Last 2.1 Million Years Past Greenhouse Gas Levels
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2009/12/10
Researchers have reconstructed atmospheric carbon dioxide levels over the past 2.1 million years in the sharpest detail yet, shedding new light on its role in the earth’s cycles of cooling and warming...
Primary production during nutrient-induced blooms at elevated CO2 concentrations
Primary production nutrient-induced blooms elevated CO2 concentrations
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2010/1/20
A CO2 enrichment experiment (PeECE III) was carried out in 9 mesocosms in which the seawater carbonate system was manipulated to achieve three different levels of pCO2. At the onset of the experimenta...
Comparing high resolution WRF-VPRM simulations and two global CO2 transport models with coastal tower measurements of CO2
high resolution WRF-VPRM simulations CO2 transport models coastal tower measurements
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2010/1/20
In order to better understand the effects that mesoscale transport has on atmospheric CO2 distributions, we have used the atmospheric WRF model coupled to the diagnostic biospheric model VPRM, which p...
Mesoscale modelling of the CO2 interactions between the surface and the atmosphere applied to the April 2007 CERES field experiment
Mesoscale modelling CO2 interactions surface atmosphere CERES field experiment
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2010/1/19
This paper describes a numerical interpretation of the April 2007, CarboEurope Regional Experiment Strategy (CERES) campaign, devoted to the study of the CO2 cycle at the regional scale. Four consecut...
Anthropogenic and natural CO2 exchange through the Strait of Gibraltar
Anthropogenic CO2 exchange natural CO2 exchange Strait of Gibraltar
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2010/1/19
The exchange of both anthropogenic and natural inorganic carbon between the Atlantic Ocean and the Mediterranean Sea through Strait of Gibraltar was studied for a period of two years under the frame o...
An empirical model simulating diurnal and seasonal CO2 flux for diverse vegetation types and climate conditions
empirical model CO2 flux diverse vegetation types climate conditions
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2010/1/19
We present an empirical model for the estimation of diurnal variability in net ecosystem CO2 exchange (NEE) in various biomes. The model is based on the use of a simple saturated function for photosyn...
Anthropogenic CO2 emissions in Africa
Anthropogenic CO2 emissions Africa
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2010/1/19
An understanding of the regional contributions and trends of anthropogenic carbon dioxide (CO2) emissions is critical to design mitigation strategies aimed at stabilizing atmospheric greenhouse gases....
The role of ocean transport in the uptake of anthropogenic CO2
role ocean transport uptake anthropogenic CO2
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2010/1/19
We compare modeled oceanic carbon uptake in response to pulse CO2 emissions using a suite of global ocean models and Earth system models. In response to a CO2 pulse emission of 590 Pg C (corresponding...
Wind Shifts May Stir CO2 From Antarctic Depths--Releases May Have Speeded End of Last Ice Age—And Could Act Again（图）
Wind Shifts CO2 Antarctic Depths Last Ice Age
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2009/12/10
Natural releases of carbon dioxide from the Southern Ocean due to shifting wind patterns could have amplified global warming at the end of the last ice age--and could be repeated as manmade warming pr...
Geologists Map Rocks to Soak CO2 From Air--6,000 Square Miles in U.S. Might Turn Emissions to Harmless Solids（图）
Geologists Map 6,000 Square Miles in U.S. Emissions Harmless Solids
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2009/12/10
To slow global warming, scientists are exploring ways to pull carbon dioxide from the air and safely lock it away. Trees already do this naturally through photosynthesis; now, in a new report, geologi...
CO2 budgeting at the regional scale using a Lagrangian experimental strategy and meso-scale modeling
CO2 budgeting regional scale Lagrangian experimental strategy meso-scale modeling
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2010/1/19
An atmospheric Lagrangian experiment for regional CO2 budgeting with aircraft measurements took place during the CarboEurope Regional Experiment Strategy campaign (CERES) in south-west France, in June...
Carbon and oxygen isotope analysis of leaf biomass reveals contrasting photosynthetic responses to elevated CO2 near geologic vents in Yellowstone National Park
isotope analysis leaf biomass reveals photosynthetic responses CO2 geologic vents
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2010/1/19
In this study we explore the use of natural CO2 emissions in Yellowstone National Park (YNP) in Wyoming, USA to study responses of natural vegetation to elevated CO2 levels. Radiocarbon (14C) analysis...
CO2 enrichment increases nutrient leaching from model forest ecosystems in subtropical China
CO2 enrichment nutrient leaching model forest ecosystems subtropical China
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2010/1/18
The effect of high atmospheric CO2 concentrations on the dynamics of mineral nutrient is not well documented, especially for subtropical China. We used model forest ecosystems in open-top chambers to ...
Temporal variability of the anthropogenic CO2 storage in the Irminger Sea
Temporal variability anthropogenic CO2 storage Irminger Sea
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2010/1/18
The anthropogenic CO2 (Cant) estimates from cruises spanning more than two decades (1981–2006) in the Irminger Sea area of the North Atlantic Subpolar Gyre reveal a large variability in the Cant stora...
Assessing seasonality of biochemical CO2 exchange model parameters from micrometeorological flux observations at boreal coniferous forest
seasonality biochemical CO2 exchange model parameters micrometeorological flux observations
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2010/1/18
The seasonality of the NEE of the northern boreal coniferous forests was investigated by means of inversion modelling using eddy covariance data. Eddy covariance data was used to optimize the biochemi...