Fig. 4
From: Deciphering key processes controlling rainfall isotopic variability during extreme tropical cyclones
Stratiform rainfall area fraction and δ18O (‰) relationship for a long-term monitoring station in the Caribbean coast of Costa Rica during 2013–2017. a Relationship between stratiform rainfall area fraction (Fst) and the area-averaged rainfall amount over the 5° × 5° longitude/latitude box centered at the 28 Millas station during the observation period (March 2014–September 2017). Red circles with error bars represent the average and standard deviation in precipitation intensity bins for each 0.05 mm/h interval up to 1.5 mm/h. Blue curved line shows a logarithmic regression of averaged values. b Stratiform rainfall area fraction and stable isotope composition δ18O relationship (Adj. R2 = 0.30; P < 0.001). Stratiform rainfall area fraction is color and size coded. The horizontal black line represents 0.0 (‰) in δ18O as a reference
