A model intercomparison analysis for controls on C accumulation in North American peatlands [version 1.0]

• Main Authors: Bailu Zhao, Claire Treat, Qianlai Zhuang, Steve Frolking
• Format: Dataset
• Language: unknown
• Published: 2022
• Subjects: EAPS; Holocene Peatland Carbon; HPM; P-TEM; RCP scenarios; Arctic; permafrost
• Online Access: https://doi.org/10.4231/982H-T007

Peatland biogeochemical processes have not been adequately represented in existing earth system models, which might have biased the quantification of Arctic carbon-climate feedbacks. We revise the Peatland Terrestrial Ecosystem Model (PTEM) by incorporating additional peatland biogeochemical processes. The revised PTEM is evaluated by comparing with Holocene Peatland Model (HPM) in simulating peat physical and biogeochemical dynamics in three North American peatlands: a permafrost-free fen site (Mariana Fen), a permafrost-free bog site (Bear Bog) and a permafrost bog site (Innoko Bog). Peatland carbon dynamics are simulated from peat initiation to 1990 and then to year 2300 with both models. Model responses to the changes in temperature and precipitation are analyzed to identify key processes affecting peatland carbon accumulation rates. PTEM is written in C++ and run on Linux platform, while HPM is written in Matlab. This dataset provides the PTEM and HPM simulation outputs in text files, and can be used to reproduce the figures in A model intercomparison analysis for controls on C accumulation in North American peatlands.