Sentences with phrase «fluxes from vegetation»

In the atmospheric CO2 analysis and forecast, the modelled CO2 fluxes from vegetation are bias corrected based on the optimized fluxes from the CAMS flux inversion system (Agusti - Panareda et al., 2016).

Not exact matches

Houghton's method of reconstructing Land - Use Based Net Flux of Carbon appears arbitrary and susceptible to bias; i.e. «Rates of land - use change, including clearing for agriculture and harvest of wood, were reconstructed from statistical and historic documents for 9 world regions and used, along with the per ha [hectare] changes in vegetation and soil that result from land management, to calculate the annual flux of carbon between land and atmosphere.&raFlux of Carbon appears arbitrary and susceptible to bias; i.e. «Rates of land - use change, including clearing for agriculture and harvest of wood, were reconstructed from statistical and historic documents for 9 world regions and used, along with the per ha [hectare] changes in vegetation and soil that result from land management, to calculate the annual flux of carbon between land and atmosphere.&raflux of carbon between land and atmosphere.»

Turbulent mixing of warm air downward likely more common in recent years due to roughness changes, urbanization, sensible heat flux from warm, dark, irrigated vegetation etc..

In all of these simple models, we assume the atmosphere to have a volume as fixed as a bathtub, we assume that the atmosphere / ocean system is a closed system, we assume that the incoming radiation from the Sun is constant, we assume no turbulence, we assume no viscosity, we assume radiative equilibrium with no feedback lag, we take no account of water vapor flux assuming it to be constant, no change in albedo from changes in land use, glacier lengthening and shortening, no volcanic eruptions, no feedbacks from vegetation.

States that other feedbacks likely to emerge are those in which key processes include surface fluxes of trace gases, changes in the distribution of vegetation, changes in surface soil moisture, changes in atmospheric water vapor arising from higher temperatures and greater areas of open ocean, impacts of Arctic freshwater fluxes on the meridional overturning circulation of the ocean, and changes in Arctic clouds resulting from changes in water vapor content

Specific research topics include carbon dioxide, methane and water fluxes and their reservoirs in vegetation and soil, transport in atmosphere, and model - data fusion using advanced numerical methods.The research is based on numerical modelling, from local to global scale with focus on northern regions.

For Europe specifically, it is estimated that the CO2 flux from land vegetation contributes to reduce the global net flux associated with atmospheric growth of CO2, but the relative magnitude of this sink has been decreasing since the 1990s (from capturing 40 % of the global growth previously, to about 20 % now), likely further to changes in the atmospheric transport of heat and humidity over Europe.

Similarly, changes in terrestrial vegetation, such as the replacement of forests by tundra, feed back into the atmosphere via changes in both albedo and latent heat flux from evapotranspiration.