搜索结果: 16-30 共查到“地球科学总论 CO2”相关记录80条 . 查询时间(0.138 秒)
Optimization of the seasonal cycles of simulated CO2 flux by fitting simulated atmospheric CO2 to observed vertical profiles
the seasonal cycles CO2 flux atmospheric CO2 vertical profiles
2010/1/21
An inverse of a combination of atmospheric transport and flux models was used to optimize the Carnegie-Ames-Stanford Approach (CASA) terrestrial ecosystem model properties such as light use efficiency...
Airborne lidar reflectance measurements at 1.57 μm in support of the A-SCOPE mission for atmospheric CO2
Airborne lidar reflectance measurements 1.57 μm A-SCOPE mission atmospheric CO2
2010/2/8
The characteristics of the lidar reflectance of the Earth's surface is an important issue for the IPDA lidar technique (integrated path differential absorption lidar) which is the proposed method for ...
Stalled Economy or Not, Record Year for CO2 Emissions--People Still Consumed More Per Capita in 2008（图）
Stalled Economy Record Year CO2 Emissions
2009/12/10
Each person on the planet produced 1.3 tons of carbon last year—an all-time high--despite a global recession that slowed the growth of fossil fuel emissions for the first time this decade, according t...
Seasonal and mesoscale variability of oceanic transport of anthropogenic CO2
Seasonal mesoscale variability oceanic transport anthropogenic CO2
2010/1/21
Estimates of the ocean's large-scale transport of anthropogenic CO2 are based on one-time hydrographic sections, but the temporal variability of this transport has not been investigated. The aim of th...
The Arctic Ocean marine carbon cycle:evaluation of air-sea CO2 exchanges,ocean acidification impacts and potential feedbacks
Arctic Ocean marine carbon cycle evaluation air-sea CO2 exchanges ocean acidification impacts
2010/1/21
At present, although seasonal sea-ice cover mitigates atmosphere-ocean gas exchange, the Arctic Ocean takes up carbon dioxide (CO2) on the order of ?66 to ?199 Tg C year?1 (1012 g C), contributing 5–1...
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...
Physiological basis for high CO2 tolerance in marine ectothermic animals:pre-adaptation through lifestyle and ontogeny?
CO2 tolerance marine ectothermic animals pre-adaptation lifestyle ontogeny
2010/1/21
Future ocean acidification has the potential to adversely affect many marine organisms. A growing body of evidence suggests that many species could suffer from reduced fertilization success, decreases...
Modelling regional scale surface fluxes,meteorology and CO2 mixing ratios for the Cabauw tower in the Netherlands
regional scale surface fluxes meteorology CO2 mixing ratios Cabauw tower
2010/1/21
We simulated meteorology and atmospheric CO2 transport over the Netherlands with the mesoscale model RAMS-Leaf3 coupled to the biospheric CO2 flux model 5PM. The results were compared with meteorologi...
CO2 perturbation experiments:similarities and differences between dissolved inorganic carbon and total alkalinity manipulations
CO2 perturbation experiments similarities inorganic carbon total alkalinity manipulations
2010/1/21
Increasing atmospheric carbon dioxide (CO2) through human activities and invasion of anthropogenic CO2 into the surface ocean alters the seawater carbonate chemistry, increasing CO2 and bicarbonate (H...
A single gas chromatograph for accurate atmospheric mixing ratio measurements of CO2,CH4,N2O,SF6 and CO
gas chromatograph atmospheric mixing ratio measurements CO2 CH4 N2O SF6 CO
2010/2/8
We present an adapted gas chromatograph capable of measuring simultaneously and semi-continuously the atmospheric mixing ratios of the greenhouse gases CO2, CH4, N2O and SF6 and the trace gas CO with ...
Influence of elevated CO2 concentrations on cell division and nitrogen fixation rates in the bloom-forming cyanobacterium Nodularia spumigena
elevated CO2 concentrations cell division nitrogen fixation rates bloom-forming cyanobacterium
2010/1/21
The surface ocean absorbs large quantities of the CO2 emitted to the atmosphere from human activities. As this CO2 dissolves in seawater, it reacts to form carbonic acid. While this phenomenon, called...
Effect of CO2-related acidification on aspects of the larval development of the European lobster,Homarus gammarus (L.)
CO2-related acidification larval development European lobster
2010/1/20
Oceanic uptake of anthropogenic CO2 results in a reduction in pH termed "Ocean Acidification" (OA). Comparatively little attention has been given to the effect of OA on the early life history stages o...
Impact of atmospheric and terrestrial CO2 feedbacks on fertilization-induced marine carbon uptake
atmospheric and terrestrial CO2 feedbacks fertilization-induced marine carbon uptake
2010/1/20
The sensitivity of oceanic CO2 uptake to alterations in the marine biological carbon pump, such as brought about by natural or purposeful ocean fertilization, has repeatedly been investigated by studi...
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...
Structure of the transport uncertainty in mesoscale inversions of CO2 sources and sinks using ensemble model simulations
transport uncertainty mesoscale inversions CO2 sources sinks model simulations
2010/1/20
We study the characteristics of a statistical ensemble of mesoscale simulations in order to estimate the model error in the simulation of CO2 concentrations. The ensemble consists of ten members and t...