Analyzing Changes in Hadley Cell to Explain Precipitation
float OMEGA(time, lev, lat, lon) ;
________OMEGA:mdims = 1 ;
________OMEGA:units = "Pa/s" ;
________OMEGA:long_name = "Vertical velocity (pressure)" ;
________OMEGA:cell_methods = "time: mean" ;
Vertical velocity is used to diagnose the strength of the Hadley circulation during the control run (nw_cntrl_03) and following a 150 Tg soot injection (nw_ur_150_07). Dramatic changes in precipitation in the tropics and subtropics can be linked to shifts in the InterTropical Convergence Zone (ITCZ), which is modulated by the strength of the Hadley cell. Additionally, subsidence on the poleward branch of the Hadley cell influences the amount of precipitation in the subtropical regions.
Omega (hPa/s)
Omega (hPa/s)
Omega Anomaly (hPa/s)
Precipitation Anomaly (% change), 700 mb Omega Anomaly (hPa/s)
