GECKO-A Details

Notes on the GECKO-A Output Library

Plotting Notes

  • Unless explicitly mentioned in the plot legend, the precursor is excluded from the analysis.
  • Some species lifetimes are shorter than the minimum time resolution available here.

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The GECKO-A Output Library: Precursor List

C# linear branched cyclic and/or unsaturated
3-9 propane, butane, pentane, hexane, heptane, octane, nonane isobutane isoprene, benzene, toluene, oct‑1‑ene, 2‑methyl‑oct‑1‑ene
10 decane 2‑methylnonane, 4,5‑dimethyloctane, 3,4,5‑trimethylheptane cyclodecane, α‑pinene, β‑pinene, β‑myrcene, limonene, ocimene, sabinene
12 dodecane 2‑methylundecane, 2,4‑dimethyldecane, 2,4,6‑trimethylnonane, 2,3,4,6‑tetramethyloctane, 2,3,4,5,6‑pentamethylheptane dodec‑1‑ene
14-15 tetradecane 2‑methyltridecane, 3,3‑diethyldecane, 6,7‑dimethyldodecane, 5,6,7‑trimethylundecane butadec‑6‑ene, cyclopentadecane, 2‑methylbutadec‑1‑ene
17-18 heptadecane, octadecane 2‑methylheptadecane, 8,9‑dimethylhexadecane, 3,3‑diethyltetradecane, 7,8,9‑trimethylpentadecane heptadec‑1‑ene, heptadec‑8‑ene
22 docosane 2‑methyluncosane, 10,11‑dimethyleicosane, 3,3‑diethyloctadecane, 9,10,11‑trimethylnonadecane  

 

Simulation Conditions

Scenario [Nox] molec/cc, pp*
urban 5.0e+11,   200 ppb
polluted continental 5.0e+10,     20 ppb
continental   1.25e+10,     5 ppb
remote continental   6.25e+8,       2.5 ppt
remote   5.0e+8,         2 ppt
All simulations include 
T = 298K   [O3] 1e+12,  40 ppb
SZA = 45°
(constant)
  [precursor] = 1 pptvC
Simulation length = 10 days
(> 5 x τ-precursor) 

 

Output Display Options

Single-phase plots ( Gas or Aerosol )

Distributions wrt. time

•Top 10 Species
•Top 10 Elemental Formulae
•Carbon chain length
•Functional groups

Atomic ratios

•Time evolution
•Van Krevelen plots
Multi-phase plots

Time evolutions

•Carbon per phase
•Mass per phase
•SOA yield

Snapshots

•OSc vs Cstar bubble plots
•Molecular Mass Distributions (“Mass Spectra”)
•Vapor Pressure Distributions (“VBS”)
•Henry’s Law Distributions

 

Support

  • US Department of Energy.

 

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