Authors
RM Law, W Peters, C Rödenbeck, C Aulagnier, I Baker, DJ Bergmann, Philippe Bousquet, Jørgen Brandt, L Bruhwiler, PJ Cameron‐Smith, Jesper Heile Christensen, F Delage, AS Denning, S Fan, Camilla Geels, S Houweling, R Imasu, Ute Karstens, SR Kawa, J Kleist, MC Krol, S‐J Lin, R Lokupitiya, T Maki, S Maksyutov, Y Niwa, R Onishi, N Parazoo, PK Patra, G Pieterse, L Rivier, M Satoh, S Serrar, S Taguchi, M Takigawa, R Vautard, AT Vermeulen, Z Zhu
Publication date
2008/9
Source
Global Biogeochemical Cycles
Volume
22
Issue
3
Description
A forward atmospheric transport modeling experiment has been coordinated by the TransCom group to investigate synoptic and diurnal variations in CO2. Model simulations were run for biospheric, fossil, and air‐sea exchange of CO2 and for SF6 and radon for 2000–2003. Twenty‐five models or model variants participated in the comparison. Hourly concentration time series were submitted for 280 sites along with vertical profiles, fluxes, and meteorological variables at 100 sites. The submitted results have been analyzed for diurnal variations and are compared with observed CO2 in 2002. Mean summer diurnal cycles vary widely in amplitude across models. The choice of sampling location and model level account for part of the spread suggesting that representation errors in these types of models are potentially large. Despite the model spread, most models simulate the relative variation in diurnal amplitude …
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RM Law, W Peters, C Rödenbeck, C Aulagnier, I Baker… - Global Biogeochemical Cycles, 2008