A. Thanks for your interest in MERRA-2!Q. I am fetching monthly data for Planetary boundary layer height using Giovanni. As a result, I am getting two response variable datasets ( Transcom planetary boundary layer height (M2TMNXFLX v5.12.4) and Planetary boundary layer height (M2TMNXFLX v5.12.4). What is the difference between Transcom planetary boundary layer height and Planetary boundary layer height?
The TCZPBL, transom PBL is based on Seidel et al 2012 (https://doi.org/10.1029/2012JD018143), defined where the bulk Ri number exceeds 0.25.
PBLH is based on a K threshold.
Both methods are discussed here: McGrath-Spangler and Molod 2014 (https://doi.org/10.5194/acp-14-6717-2014)