Cosmic ray decreases affect atmospheric aerosols and clouds Export

@article{citeulike:5405635, abstract = {Close passages of coronal mass ejections from the sun are signaled at the Earth's surface by Forbush decreases in cosmic ray counts. We find that low clouds contain less liquid water following Forbush decreases, and for the most influential events the liquid water in the oceanic atmosphere can diminish by as much as 7\%. Cloud water content as gauged by the Special Sensor Microwave/Imager (SSM/I) reaches a minimum ≈7 days after the Forbush minimum in cosmic rays, and so does the fraction of low clouds seen by the Moderate Resolution Imaging Spectroradiometer (MODIS) and in the International Satellite Cloud Climate Project (ISCCP). Parallel observations by the aerosol robotic network AERONET reveal falls in the relative abundance of fine aerosol particles which, in normal circumstances, could have evolved into cloud condensation nuclei. Thus a link between the sun, cosmic rays, aerosols, and liquid-water clouds appears to exist on a global scale. }, author = {Svensmark, Henrik and Bondo, Torsten and Svensmark, Jacob}, citeulike-article-id = {5405635}, citeulike-linkout-0 = {http://www.agu.org/pubs/crossref/2009/2009GL038429.shtml}, citeulike-linkout-1 = {http://dx.doi.org/10.1029/2009GL038429}, day = {1}, doi = {10.1029/2009GL038429}, issn = {0094-8276}, journal = {Geophysical Research Letters}, keywords = {aerosol, albedo, climate, cloud, correlation, cosmic, solar, water-vapor}, month = {August}, number = {15}, pages = {L15101+}, posted-at = {2009-08-10 19:26:43}, priority = {2}, title = {Cosmic ray decreases affect atmospheric aerosols and clouds}, url = {http://dx.doi.org/10.1029/2009GL038429}, volume = {36}, year = {2009} }

TY - JOUR ID - citeulike:5405635 L3 - citeulike-article-id:5405635 N2 - Close passages of coronal mass ejections from the sun are signaled at the Earth's surface by Forbush decreases in cosmic ray counts. We find that low clouds contain less liquid water following Forbush decreases, and for the most influential events the liquid water in the oceanic atmosphere can diminish by as much as 7%. Cloud water content as gauged by the Special Sensor Microwave/Imager (SSM/I) reaches a minimum ≈7 days after the Forbush minimum in cosmic rays, and so does the fraction of low clouds seen by the Moderate Resolution Imaging Spectroradiometer (MODIS) and in the International Satellite Cloud Climate Project (ISCCP). Parallel observations by the aerosol robotic network AERONET reveal falls in the relative abundance of fine aerosol particles which, in normal circumstances, could have evolved into cloud condensation nuclei. Thus a link between the sun, cosmic rays, aerosols, and liquid-water clouds appears to exist on a global scale. IS - 15 JF - Geophysical Research Letters SN - 0094-8276 TI - Cosmic ray decreases affect atmospheric aerosols and clouds VL - 36 SP - L15101 KW - aerosol KW - albedo KW - climate KW - cloud KW - correlation KW - cosmic KW - solar KW - water-vapor AU - Svensmark, Henrik AU - Bondo, Torsten AU - Svensmark, Jacob PY - 2009/08/01/ UR - http://dx.doi.org/10.1029/2009GL038429 ER -