Mechanisms of Arctic surface air temperature change in response to the Madden-Julian Oscillation Changhyun Yoo*, Sukyoung Lee, and Steven B. Feldstein Department of Meteorology, The Pennsylvania State University University Park, Pennsylvania * Current affiliation: Center for Atmosphere Ocean Science, Courant Institute, New York University, New York Changhyun Yoo, Center for Atmosphere Ocean Science, Corresponding Author address: Courant Institute, New York University, 251 Mercer Street, New York, New York, 10012, USA. Email: Abstract Using lagged composites and projections with the thermodynamic energy equation, this study investigates the mechanisms that drive the boreal winter Arctic surface air temperature (SAT) change associated with the Madden-Julian Oscillation (MJO). We use the Wheeler and Hendon MJO index, which divides the MJO into 8 phases, where phase 1 (phase 5) corresponds to reduced (enhanced) convection over the
Mechanisms of Arctic surface air temperature change in response to the Madden-Julian Oscillation Changhyun Yoo*, Sukyoung Lee, and Steven B. Feldstein Department of Meteorology, The Pennsylvania State University University Park, Pennsylvania * Current affiliation: Center for Atmosphere Ocean Science, Courant Institute, New York University, New York Corresponding Author address: Changhyun Yoo, Center for Atmosphere Ocean Science, Courant Institute, New York University, 251 Mercer Street, New York, New York, 10012, USA. Email: Abstract Using lagged composites and projections with the thermodynamic energy equation, this study investigates the mechanisms that drive the boreal winter Arctic surface air temperature (SAT) change associated with the Madden-Julian Oscillation (MJO). We use the Wheeler and Hendon MJO index, which divides the MJO into 8 phases, where phase 1 (phase 5) corresponds to reduced (enhanced) convection over the
MJO-PA-mechanism_V9.docx