搜索结果: 1-15 共查到“地球科学总论 Exchange”相关记录38条 . 查询时间(0.118 秒)
Accessing the Potential of Satellite and Telemetric Data to Evaluate the Influence of the Heat Flux Exchange in the Water Column Mixing and Stratification
Thermal Infrared Heat and Cooling Mixing Stratification
2013/3/11
The objective of this work is to evaluate the feasibility of moderate resolution satellite data estimating the surface heat balance in a tropical hydroelectric reservoir. Each component of the heat fl...
The Exchange Processes in the Patos Lagoon Estuarine Channel, Brazil
Freshwater Discharge Stratification Advection Barotropic Oscillations
2013/3/7
Investigation of process controlling the estuarine-shelf interaction in the Patos Lagoon estuarine channel is accessed using a two-dimensional numerical model. Results obtained suggest this approximat...
Needle age-related and seasonal photosynthetic capacity variation is negligible for modelling yearly gas exchange of a sparse temperate Scots pine forest
Needle age-related and seasonal photosynthetic capacity variation a sparse temperate Scots pine forest
2010/1/21
In this study, we quantified the predictive accuracy loss involved with omitting photosynthetic capacity variation for a Scots pine (Pinus sylvestris L.) stand in Flanders, Belgium. Over the course of...
From biota to chemistry and climate: towards a comprehensive description of trace gas exchange between the biosphere and atmosphere
From biota to chemistry and climate trace gas exchange the biosphere and atmosphere
2010/1/21
Exchange of non-CO2 trace gases between the land surface and the atmosphere plays an important role in atmospheric chemistry and climate. Recent studies have highlighted its importance for interpretat...
"Processes controlling the exchange of ammonia between grassland and the atmosphere (GRAMINAE) – results from the Braunschweig field experiment"
ammonia grassland and the atmosphere the Braunschweig field experiment
2010/1/21
"Processes controlling the exchange of ammonia between grassland and the atmosphere (GRAMINAE) – results from the Braunschweig field experiment".
Dynamics of ammonia exchange with cut grassland: synthesis of results and conclusions of the GRAMINAE Integrated Experiment
ammonia exchange cut grassland the GRAMINAE Integrated Experiment
2010/1/21
Improved data on biosphere-atmosphere exchange are fundamental to understanding the production and fate of ammonia (NH3) in the atmosphere. The GRAMINAE Integrated Experiment combined novel measuremen...
Biosphere-atmosphere exchange of CO2 in relation to climate:a cross-biome analysis across multiple time scales
Biosphere-atmosphere exchange CO2 cross-biome analysis multiple time scales
2010/1/21
The net ecosystem exchange of CO2 (NEE) varies at time scales from seconds to years and longer via the response of its components, gross ecosystem productivity (GEP) and ecosystem respiration (RE), to...
Effects of N and P fertilization on the greenhouse gas exchange in two northern peatlands with contrasting N deposition rates
N and P fertilization greenhouse gas exchange northern peatlands N deposition rates
2010/1/21
Peatlands are important ecosystems in the context of biospheric feedback to climate change, due to the large storage of organic C in peatland soils. Nitrogen deposition and increased nutrient availabi...
The influence of hypercapnia and the infaunal brittlestar Amphiura filiformis on sediment nutrient flux – will ocean acidification affect nutrient exchange?
hypercapnia brittlestar Amphiura filiformis sediment nutrient flux ocean acidification
2010/1/21
Rising levels of atmospheric carbon dioxide and the concomitant increased uptake of this by the oceans is resulting in hypercapnia-related reduction of ocean pH. Research focussed on the direct effect...
On observational and modelling strategies targeted at regional carbon exchange over continents
observational and modelling strategies regional carbon exchange continents
2010/1/21
Estimating carbon exchange at regional scales is paramount to understanding feedbacks between climate and the carbon cycle, but also to verifying climate change mitigation such as emission reductions ...
Forest floor carbon exchange of a boreal black spruce forest in eastern North America
Forest floor carbon exchange boreal black spruce forest eastern North America
2010/1/21
This study reports continuous automated measurements of forest floor carbon (C) exchange over feathermoss, lichen, and sphagnum micro-sites in a black spruce forest in eastern North America during sno...
Intercomparison and assessment of turbulent and physiological exchange parameters of grassland
Intercomparison assessment turbulent and physiological exchange parameters grassland
2010/1/20
Commonly, the micrometeorological parameters that underline the calculations of surface atmosphere exchange fluxes (e.g. friction velocity and sensible heat flux) and parameters used to model exchange...
Evidence for surface organic matter modulation of air-sea CO2 gas exchange
Evidence surface organic matter modulation air-sea CO2 gas exchange
2010/1/20
Air-sea CO2 exchange depends on the air-sea CO2 gradient and the gas transfer velocity (k), computed as a function of wind speed. Large discrepancies among relationships predicting k from wind suggest...
Anthropogenic and natural CO2 exchange through the Strait of Gibraltar
Anthropogenic CO2 exchange natural CO2 exchange Strait of Gibraltar
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 automated dynamic chamber system for surface exchange measurement of non-reactive and reactive trace gases of grassland ecosystems
dynamic chamber system surface exchange measurement grassland ecosystems
2010/1/19
We present an automated dynamic chamber system which is optimised for continuous unattended flux measurements of multiple non-reactive and reactive trace gases on grassland ecosystems. Main design fea...