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Table 2.

Variables and parameters of the POC cycling model

SymbolNamePrior EstimateUnitsReference
PS, PL [POC] in SSF and LSF variable mmol m−3 Roca-Martí et al. (2021)  
P˙S,ML particle production in the mixed layer 0.21 ± 0.02a mmol m−3 d−1 unpublishedb 
LP vertical e-folding scale of P˙S 26.4 ± 2.7c unpublishedb 
β2 aggregation 0.003 ± 0.0003d m3 mmol−1 d−1 Murnane et al. (1996) d 
 0.017 ± 0.020e, f Murnane (1994) e 
β2 disaggregation 0.43 ± 0.05d d−1 Murnane et al. (1996) d 
 1.1 ± 27.4e Murnane (1994) e 
β1,S remineralization (SSF) 0.10 ± 0.05g d−1 Clegg et al. (1991)  
β1,L remineralization (LSF) 0.150 ± 0.075g d−1 Santoro et al. (2020)  
wS particle sinking speed (SSF) 2 ± 1g m d−1 Lerner et al. (2017)  
wL particle sinking speed (LSF) 20 ± 10g m d−1 Murnane et al. (1990)  
β3 zooplankton ingestion rate 0.06 ± 0.03g d−1 Calbet (2001)  
α zooplankton egestion fraction 0.30 ± 0.15g unitless Steinberg and Landry (2017)  
zm maximum egestion depth 500 ± 250g Omand et al. (2021)  
εS¯h, εL¯h errors in PS and PL balances 0.0 ± 3.1 mmol m−2 d−1 see text 
SymbolNamePrior EstimateUnitsReference
PS, PL [POC] in SSF and LSF variable mmol m−3 Roca-Martí et al. (2021)  
P˙S,ML particle production in the mixed layer 0.21 ± 0.02a mmol m−3 d−1 unpublishedb 
LP vertical e-folding scale of P˙S 26.4 ± 2.7c unpublishedb 
β2 aggregation 0.003 ± 0.0003d m3 mmol−1 d−1 Murnane et al. (1996) d 
 0.017 ± 0.020e, f Murnane (1994) e 
β2 disaggregation 0.43 ± 0.05d d−1 Murnane et al. (1996) d 
 1.1 ± 27.4e Murnane (1994) e 
β1,S remineralization (SSF) 0.10 ± 0.05g d−1 Clegg et al. (1991)  
β1,L remineralization (LSF) 0.150 ± 0.075g d−1 Santoro et al. (2020)  
wS particle sinking speed (SSF) 2 ± 1g m d−1 Lerner et al. (2017)  
wL particle sinking speed (LSF) 20 ± 10g m d−1 Murnane et al. (1990)  
β3 zooplankton ingestion rate 0.06 ± 0.03g d−1 Calbet (2001)  
α zooplankton egestion fraction 0.30 ± 0.15g unitless Steinberg and Landry (2017)  
zm maximum egestion depth 500 ± 250g Omand et al. (2021)  
εS¯h, εL¯h errors in PS and PL balances 0.0 ± 3.1 mmol m−2 d−1 see text 

aN = 10.

bDOI: 10.5067/SeaBASS/EXPORTS/DATA001 (see Data Accessibility).

cN = 24.

dFrom the North Atlantic Bloom Experiment.

eFrom Station P.

fβ2 estimate (Murnane, 1994) divided by mean of PS data from upper 300 m (Bishop et al., 1999).

gRelative error chosen arbitrarily as 50%.

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