Anthropogenic air pollution observed near dust source regions in northwestern China during springtime 2008

Anthropogenic air pollution sources

What one experiences today as atmosphere is a transient snapshot and result of its evolutionary history. Much of the development and present status was explained based both on scientific knowledge, and combined with established facts, even speculation. The planet Earth was formed around 4600 million years ago by the gravitational accretion of relatively small rocks and dust, within the solar ne...

Dust aerosol optical properties retrieval and radiative forcing over northwestern China during the 2008 China‐U.S. joint field experiment

[1] The Atmosphere Radiation Measurements Program’s Ancillary Facility (AAF/ SMART‐COMMIT) was deployed to Zhangye (39.082°N, 100.276°E), which is located in a semidesert area of northwest China, during the period of late April to mid June in 2008. We selected 11 cases to retrieve dust aerosol optical depth (AOD), Angstrom exponent, size distribution, single‐scattering albedo (SSA) and asymmetr...

Diurnal variability of dust aerosol optical thickness and Angström exponent over dust source regions in China

[1] Using 22 months of Sunphotometer Aerosol Optical Thickness (AOT) data collected near the Taklamakan and Gobi dust source regions (Dunhuang, 40.09 N, 94.41 E) in China; we examine the diurnal and seasonal change of dust aerosol properties. Most dust events are during the spring through early summer months with a season-invariant diurnal change of more than ±10% for AOTand ±30% for Angström e...

Effect of Source Areas Anthropogenic Activities on Dust Storm Occurrences in the Western Parts of Iran

Substantial contribution of anthropogenic air pollution to catastrophic floods in Southwest China

Extreme weather events have become more frequent and are likely linked to increases in greenhouse gases and aerosols, which alter the Earth’s radiative balance and cloud processes. On 8–9 July 2013, a catastrophic flood devastated the mountainous area to the northwest of the Sichuan Basin. Atmospheric simulations at a convection-permitting scale with aerosols and chemistry included show that he...