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“Blue” hydrogen – an energy source that involves a process for making hydrogen by using methane in natural gas – is being lauded by many as a clean, green energy to help reduce global warming. But Cor...
In-situ observations of aerosol particles remaining from evaporated cirrus crystals: Comparing clean and polluted air masses
aerosol particles cirrus crystals clean and polluted air masses
2009/3/11
In-situ observations of aerosol particles contained in cirrus crystals are presented and compared to interstitial aerosol size distributions (non-activated particles in between the cirrus crystals). T...
Thermal stability analysis of particles incorporated in cirrus crystals and of non-activated particles in between the cirrus crystals: comparing clean and polluted air masses
cirrus crystals non-activated particles cirrus crystals air masses
2009/3/4
A thermal volatility technique is used to provide indirect information about the chemical composition of the aerosol involved in cirrus cloud formation. The fraction of particles that disappears after...
OH and HO2 chemistry in clean marine air during SOAPEX-2
OH HO2 chemistry clean marine air SOAPEX-2
2009/2/26
Model-measurement comparisons of HOx in extremely clean air ([NO]<3 ppt) are reported. Measurements were made during the second Southern Ocean Photochemistry Experiment (SOAPEX-2), held in austral sum...
On the growth of nucleation mode particles: source rates of condensable vapor in polluted and clean environments
nucleation mode particles source rates condensable vapor
2009/2/6
The growth properties of nucleation mode particles were investigated. The variation of source rates of condensable vapors in different locations and environmental conditions was analyzed. The measurem...
Changes in background aerosol composition in Finland during polluted and clean periods studied by TEM/EDX individual particle analysis
background aerosol composition Finland polluted and clean periods TEM/EDX individual particle
2009/1/16
Aerosol samples were collected at a rural background site in southern Finland in May 2004 during pollution episode (PM1~16 µg m−3, backward air mass trajectories from south-east), intermed...
Columnar modelling of nucleation burst evolution in the convective boundary layer – first results from a feasibility study Part III: Preliminary results on physicochemical model performance using two "clean air mass" reference scenarios
nucleation burst convective boundary layer feasibility study physicochemical model performance
2009/1/15
In Paper I of four papers, a revised columnar high-order model to investigate gas-aerosol-turbulence interactions in the convective boundary layer (CBL) was proposed. In Paper II, the model capability...
Basic characteristics of atmospheric particles, trace gases and meteorology in a relatively clean Southern African Savannah environment
atmospheric particles trace gases Southern African Savannah
2008/11/17
We have analyzed one year (July 2006–July 2007) of measurement data from a relatively clean background site located in dry savannah in South Africa. The annual-median trace gas concentrations were equ...
Palmer Station, Antarctica Celebrates Earth Day With an Underwater Clean Up（图）
sea floor Earth Day environmental
2007/4/23
April 20, 2007，Residents at Palmer Station, a year-round U.S. research station on the Antarctic Peninsula, removed old debris from the sea floor near the station in late April 2007, as a part of an an...