搜索结果: 16-28 共查到“理学 greenhouse gas”相关记录28条 . 查询时间(0.131 秒)
Greenhouse gas analysis of air samples collected onboard the CARIBIC passenger aircraft
Greenhouse gas analysis air samples CARIBIC passenger aircraft
2010/2/8
CARIBIC (Civil Aircraft for the Regular Investigation of the atmosphere Based on an Instrument Container) is a long-term atmospheric measurement program based on the use of a comprehensive scientific ...
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
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...
Radiative Climate Forcing by Anthropogenic Greenhouse Gas Emissions in Finland.
Three years of greenhouse gas column-averaged dry air mole fractions retrieved from satellite – Part 1: Carbon dioxide
greenhouse gas dry air mole Carbon dioxide
2008/11/13
Carbon dioxide (CO2) and methane (CH4) are the two most important anthropogenic greenhouse gases. SCIAMACHY on ENVISAT is the first satellite instrument whose measurements are sensitive to concentrati...
Small scale controls of greenhouse gas release under elevated N deposition rates in a restoring peat bog in NW Germany
Small scale controls greenhouse gas release N deposition rates
2010/1/15
In Central Europe, most bogs have a history of drainage and many of them are currently being restored. Success of restoration as well as greenhouse gas exchange of these bogs is influenced by environm...
The growing season greenhouse gas balance of a continental tundra site in the Indigirka lowlands,NE Siberia
season greenhouse gas balance continental tundra site Indigirka lowlands
2010/1/14
Carbon dioxide and methane fluxes were measured at a tundra site near Chokurdakh, in the lowlands of the Indigirka river in north-east Siberia. This site is one of the few stations on Russian tundra a...
Diurnal Variations of Greenhouse Gas Fluxes from Mixed Broad-1eaved and Coniferous Forest Soil in Dinghushan
greenhouse gas emission absorption flux diurnal variation broad-leaved and coniferous forest Dinghushan Chinese Academy of Sciences
2007/7/10
The subtropical mixed broad—leaved and coniferous forest, a typical successional monsoon forest, is one of the major forests in the subtropics of China．Therefore, it is very important to estimate the ...
The full greenhouse gas balance of an abandoned peat meadow
full greenhouse gas balance abandoned peat meadow
2010/1/14
Globally, peat lands are considered to be a sink of CO2, but a source when drained. Additionally, wet peat lands are thought to emit considerable amounts of CH4 and N2O. Hitherto, reliable and integra...
28-Mar-2007，New Haven, Conn.New calculations show that sensitivity of Earth's climate to changes in the greenhouse gas carbon dioxide (CO2) has been consistent for the last 420 million years, accordin...
Arizona State University commits to greenhouse gas reduction
carbon dioxide greenhouse gas climate change
2007/3/5
March 1, 2007，Pledging to significantly reduce and eventually neutralize carbon dioxide emissions that contribute to global warming, ASU President Michael Crow has announced his signing of the America...
Development of greenhouse gas policy in response to Canada’s Kyoto Protocol obligations has proven a complex task. Despite the complexity, Canada has remained clear in its intent, and has moved slowly...
Greenhouse gas emissions from Indian rice fields:calibration and upscaling using the DNDC model
Greenhouse gas emissions rice fields calibration upscaling DNDC model
2010/1/12
The Denitrification and Decomposition (DNDC) model was evaluated for its ability to simulate methane (CH4), nitrous oxide (N2O) and carbon dioxide (CO2) emissions from Indian rice fields with various ...
Assessment of Greenhouse Gas Emissions from Poultry Enteric Fermentation
Nitrous Oxide Methane Respiration Chamber Enteric Fermentation Emission Factors
2016/4/19
Emissions of nitrous oxide (N2O) and methane (CH4) from poultry enteric fermentation were investigated using a respiration chamber. Birds were placed in a respiration chamber for certain intervals dur...