The biology of ice
Nature Geoscience
2009년5월18일
Biological particles, such as bacteria, fungal spores and plant material, trigger ice formation in clouds, suggests a study published online in Nature Geoscience. The finding could prove important because the effect of airborne particles on the formation of cloud ice is one of the largest remaining sources of uncertainty in climate change projections.
Kim Prather and colleagues loaded a newly developed mass spectrometer onto an aircraft and examined the chemical composition of atmospheric ice-forming particles in a cloud over Wyoming. They found that biological particles accounted for 33% of the ice-forming particles, and mineral dust accounted for 50%.
Using a global aerosol model the team suggest that biological particles can enhance the formation of cloud ice that forms in response to desert storms.
doi: 10.1038/ngeo521
리서치 하이라이트
-
2월26일
Environment: Shifting from small to medium plastic bottles could reduce PET wasteScientific Reports
-
2월24일
Environment: European forests more vulnerable to multiple threats as climate warmsNature Communications
-
2월11일
Environment: Global CFC-11 emissions in declineNature
-
2월9일
Marine science: Bleaching leaves long-lasting effects on coral physiologyNature Ecology & Evolution
-
2월4일
Environmental science: Fresh water in the ice-age Arctic OceanNature
-
2월3일
Climate science: Under-reporting of greenhouse gas emissions in US citiesNature Communications
