搜索结果: 1-15 共查到“理学 Atmospheric CO2”相关记录36条 . 查询时间(0.39 秒)
Deep Ocean Carbonate Chemistry and Glacial-Interglacial Atmospheric CO2 Changes
Deep Ocean Carbonate Chemistry Glacial-Interglacial Atmospheric CO2
2015/7/17
Changes in deep ocean carbonate chemistry have profound implications for glacial-interglacial atmospheric CO2 changes. Here, we review deep ocean carbonate ion concentration ([CO32–]) changes based on...
Optimization of a prognostic biosphere model for terrestrial biomass and atmospheric CO2 variability
prognostic biosphere model terrestrial biomass atmospheric CO2 variability
2014/12/19
This study investigates the capacity of a prognostic biosphere model to simulate global variability in atmospheric CO2 concentrations and vegetation carbon dynamics under current environmental conditi...
A global coupled Eulerian-Lagrangian model and 1 × 1 km CO2 surface flux dataset for high-resolution atmospheric CO2 transport simulations
global coupled Eulerian-Lagrangian model surface fl ux
2014/12/11
DIURNAL AND SEASONAL VARIATION OF MEASURED ATMOSPHERIC CO2 AT DEHRADUN DURING 2009
Carbon Dioxide photosynthesis soil respiration Net Ecosystem Productivity Net primary Productivity Indian summer monsoon
2014/5/6
Atmospheric carbon dioxide (CO2) is the major greenhouse gas. We analysed the diurnal trend and seasonal variations of atmospheric Carbon Dioxide (CO2) measured at Dehradun during 2009. The measuremen...
What can we learn from European continuous atmospheric CO2 measurements to quantify regional fluxes – Part 2: Sensitivity of flux accuracy to inverse setup
European continuous atmospheric CO2 measurements regional fluxes flux accuracy
2010/8/12
An inverse model using atmospheric CO2 observations from a European network of stations to reconstruct daily CO2 fluxes and their uncertainties over Europe at 50 km resolution has been developed withi...
What can we learn from European continuous atmospheric CO2 measurements to quantify regional fluxes – Part 1: Potential of the 2001 network
European continuous atmospheric CO2 measurements regional fluxes the 2001 network
2010/8/12
An inverse model using atmospheric CO2 observations from a European network of stations to reconstruct daily CO2 fluxes and their uncertainties over Europe at 40 km resolution has been developed withi...
Increasing synoptic scale variability in atmospheric CO2 at Hateruma Island associated with increasing East-Asian emissions
atmospheric CO2 Hateruma Island associated East-Asian emissions
2010/2/1
In-situ observations of atmospheric CO2 and CH4 at Hateruma Island (24.05°N, 123.80°E, 47m a.s.l), Japan shows large synoptic scale variations during a 6-month period from November to April, when the ...
An Accounting of the Observed Increase in Oceanic and Atmospheric CO2 and an Outlook for the Future
Carbon dioxide atmosphere ocean burning fossil fuel emissions
2015/7/6
Observations of CO2 accumulation in the atmosphere and ocean show that they are approximately equal to the total amount emitted by burning of fossil fuels since 1850. A mass balance calculation is car...
Antarctic ice-sheet response to atmospheric CO2 and insolation in the Middle Miocene
Antarctic ice-sheet Middle Miocene atmospheric CO2
2009/12/3
Foraminiferal oxygen isotopes from deep-sea sediment cores suggest that a rapid expansion of the Antarctic ice sheet took place in the Middle Miocene around 13.9 million years ago. The origin for thi...
Glacial-interglacial atmospheric CO2 change：a possible “standing volume” effect on deep-ocean carbon sequestration
Glacial-interglacial deep-ocean carbon atmospheric CO2 change
2009/12/3
So far, the exploration of possible mechanisms for glacial atmospheric CO2 drawdown and marine carbon sequestration has tended to focus on dynamic or kinetic processes (i.e. variable mixing-, equilibr...
Impacts of land surface properties and atmospheric CO2 on the Last Glacial Maximum climate：a factor separation analysis
land surface properties atmospheric CO2 Last Glacial Maximum climate
2009/12/3
Many sensitivity studies have been carried out, using climate models of different degrees of complexity to test the climate response to Last Glacial Maximum boundary conditions. Here, instead of addin...
Exploring the climatic impact of the continental vegetation on the Mezosoic atmospheric CO2 and climate history
climatic continental vegetation Mezosoic atmospheric CO2
2009/12/3
In this contribution, we continue our exploration of the factors defining the Mesozoic climatic history. We improve the Earth system model GEOCLIM designed for long term climate and geochemical recons...
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 ...
Influence of line mixing on the retrievals of atmospheric CO2 from spectra in the 1.6 and 2.1 μm regions
line mixing atmospheric CO2 spectra
2009/10/9
We present the first study of the influence of line mixing among CO2 lines on the remote sensing retrieval of atmospheric carbon dioxide. This is done in the bands near 1.6 and 2.1 μm which will be us...