TY - JOUR A1 - Hu, L. A1 - Millet, D. B. A1 - Mohr, M. J. A1 - Wells, K. C. A1 - Griffis, T. J. A1 - Helmig, D. T1 - Sources and seasonality of atmospheric methanol based on tall tower measurements in the US Upper Midwest JO - Atmos. Chem. Phys. J1 - ACP VL - 11 IS - 21 SP - 11145 EP - 11156 Y1 - 2011/11/10 PB - Copernicus Publications SN - 1680-7324 UR - http://www.atmos-chem-phys.net/11/11145/2011/ L1 - http://www.atmos-chem-phys.net/11/11145/2011/acp-11-11145-2011.pdf DO - 10.5194/acp-11-11145-2011 ER -