The site holds plots of the distribution of halogen-containing very short-lived species (VSLS) in the Western Pacific region from the TOMCAT/SLIMCAT global chemical transport model (CTM). The model is being run in 'near real time', meaning that model output is available ~1 day ater the current date. For simulations here, the CTM is forced with ECMWF winds and temperatures, run with a horizontal resolution of 2.8 x 2.8 degrees and has 38 vertical levels (surface to ~5 hPa).

For CHBr₃ and CH₂Br₂, TOMCAT uses the emission fluxes of Liang et al. (2010). Global and Western Pacific CHBr₃ emission map here. For CH₂Br₂ click here.