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Comparison of monthly averaged GPP from EC observations with GPPGOSIF, GPPTROPOSIF, GPPVPRM, GPPVPRM,GOSIF, and GPPVPRM,TROPOSIF for Betul during 2018. Note that TROPOSIF data has only been available since May 2018. (For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.)
