搜索结果: 106-120 共查到“理学 atmosphere”相关记录284条 . 查询时间(0.765 秒)
Estimations of climate sensitivity based on top-of-atmosphere radiation imbalance
climate sensitivity top-of-atmosphere radiation imbalance
2010/2/21
Large climate feedback uncertainties limit the accuracy in predicting the response of the Earth's climate to the increase of CO2 concentration within the atmosphere. This study explores a potential to...
Metal concentrations in the upper atmosphere during meteor showers
Metal concentrations upper atmosphere meteor showers
2010/2/21
Using the nadir-viewing Global Ozone Measuring Experiment (GOME) UV/VIS spectrometer on the ERS-2 satellite, we investigate short term variations in the vertical magnesium column densities in the atmo...
Peroxyacetic acid in urban and rural atmosphere: concentration, feedback on PAN-NOx cycle and implication on radical chemistry
Peroxyacetic acid rural atmosphere PAN-NOx cycle radical chemistry
2010/2/1
Peroxyacetic acid (PAA) is one of the most important atmospheric organic peroxides, which have received increasing attention for their potential contribution to the oxidation capacity of the troposphe...
Different characteristics of char and soot in the atmosphere and their ratio as an indicator for source identification in Xi'an, China
atmosphere indicator source identification Xi'an China
2010/2/1
Numerous definitions and analytical techniques for elemental (or black) carbon (EC) have been published in the scientific literature, but still no generally accepted interdisciplinary definition exist...
Technical Note: Ensuring consistent, global measurements of very short-lived halocarbon gases in the ocean and atmosphere
Ensuring consistent very short-lived halocarbon gases ocean atmosphere
2010/2/1
Very short-lived halocarbons are significant sources of reactive halogen in the marine boundary layer, and likely in the upper troposphere and lower stratosphere. Quantifying ambient concentrations in...
Astronomers in Canada and Germany have made the first direct measurement of the atmospheric spectrum of a planet outside our solar system. Using the European Southern Observatory (ESO) Very Large Tele...
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...
Intercomparison of measurements of NO2 concentrations in the atmosphere simulation chamber SAPHIR during the NO3Comp campaign
NO2 concentrations atmosphere simulation chamber SAPHIR NO3Comp campaign
2010/2/8
NO2 concentrations were measured by various instruments during the NO3Comp campaign at the atmosphere simulation chamber SAPHIR at Forschungszentrum Jülich, Germany, in June 2007. Analytical methods i...
Bacteria in the global atmosphere – Part 1: Review and synthesis of literature data for different ecosystems
Bacteria global atmosphere literature data
2009/12/31
Bacteria are ubiquitous in the atmosphere, with concentrations of bacterial cells typically exceeding 1×104 m−3 over land. Numerous studies have suggested that the presence of bacteria in the at...
"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".
Lithosphere-atmosphere-ionosphere coupling as governing mechanism for preseismic short-term events in atmosphere and ionosphere
Lithosphere-atmosphere-ionosphere coupling governing mechanism preseismic short-term events atmosphere and ionosphere
2009/12/14
We present a general concept of mechanisms of preseismic phenomena in the atmosphere and ionosphere. After short review of observational results we conclude: 1. Upward migration of fluid substrate mat...
Land-atmosphere interactions in an high resolution atmospheric simulation coupled with a surface data assimilation scheme
Land-atmosphere interactions high resolution atmospheric simulation data assimilation scheme
2009/12/8
A valid tool for the retrieving of the turbulent fluxes that characterize the surface energy budget is constituted by the remote sensing of land surface states. In this study sequences of satellite-de...
Progress in understanding land-surface-atmosphere coupling over the Amazon: a review
land-surface-atmosphere the Amazon
2009/12/2
In the rainy season in Rondônia, convection in low-level westerly flows with low aerosol content resembles oceanic convection with precipitation from warm rain processes and little electrificati...
Sensitivity of land-atmosphere exchanges to overshooting PBL thermals in an idealized coupled model
land-atmosphere exchanges PBL thermals idealized coupled model
2009/12/1
The response of atmospheric carbon dioxide to a given amount of surface flux is inversely proportional to the depth of the planetary boundary layer (PBL). Overshooting thermals that entrain free trop...
Sensitivity of land-atmosphere exchanges to overshooting PBL thermals in an idealized coupled model
land-atmosphere exchanges PBL thermals idealized coupled model
2009/12/1
The response of atmospheric carbon dioxide to a given amount of surface flux is inversely proportional to the depth of the planetary boundary layer (PBL). Overshooting thermals that entrain free trop...