A HTAP multi-model assessment of the influence of regional 1 anthropogenic emission reductions on aerosol direct radiative forcing 2 and the role of intercontinental transport 3 4

1. Earth System Science Interdisciplinary Center, University of Maryland, 9 College Park, Maryland, 20740, USA 10 2. Earth Science Directorate, NASA Goddard Space Flight Center, Greenbelt, 11 Maryland, 20771, USA 12 3. Department of Environmental Sciences and Engineering, University of North 13 Carolina, Chapel Hill, NC 27599, USA 14 4. Atmospheric Earth and Energy Division, Lawrence Livermore National 15 Laboratory, Livermore CA 94551, USA 16 5. Met Office Hadley Centre, FitzRoy Road, Exeter Devon, EX1 3PB, UK 17 6. Center for Climate Systems Modeling, ETH Zurich, Universitätstrasse 16, 8092 18 Zürich, Switzerland 19 !" Joint Center for Earth Systems Technology, University of Maryland at Baltimore 20 County, Baltimore, Maryland, 21228, USA# 21 $" Universities Space Research Association, Columbia, Maryland, 21044, USA# 22 9. Biological and Environmental Engineering, Cornell University, Ithaca, New 23 York, 14850, USA 24 10. Meteorologisk Institutt, Postboks 43 Blindern 0313, Oslo, Norway 25 %%" NASA Goddard Institute for Space Studies, New York, New York, 10025, USA# 26 %&" Research Institute for Applied Mechanics, Kyushu University, Japan# 27