Here we provide material related to the publication "Model-based assessment of CO2 sequestration potential of coastal ocean alkalinization" by E. Y. Feng, W. Koeve, D. P. Keller and A. Oschlies currently (13.11.2017) under review for publication in Earth's Future. Please cite the paper given above if you are going to conduct any model experiments or data analysis based on the material (data or code) presented here for your own publications. The folder ‘model runs’ provides the original model output and the model code used. Folders ‘data processing’ and ‘figure source’ document the software used for data processing and visualisation of the results. See the respective ‘Read me’ files for details. Contact: yfeng@geomar.de _________________________________________________________________ This folder "model runs" include model code, input data and output data in netcdf format. Following the instructions readers are able to generate the data that is used in our paper, in his/her local machine: 1) create a folder to run the model, for example, named with "COA" 2) copy the content from folder "shared_files" into "COA" 3) depending on which model run you want to repeat, you have to choose an experimental run folder to copy things from. For example, "oliv10_con" includes the essential files to generate model run "oliv10_con". If you want to generate the output for this run, you will have to copy "results" to "COA" and "02" to "COA/updates" 4) In "results" folder, our model output is located in netcdf format. You have to go to "make.in" file in this folder, and change the forth line started with: "version_directory …." into the directory where your "COA" folder is located: ".../COA" 5) compile the executive file. If you are using mac or linux, just command "../mk e" in terminal within "results" folder 6) Execute "./Yuming > runlog &" to run the model within "results" folder Our UVic model version is based on the Kiel version as published by Keller, D., Oschlies, A. und Eby, M. (2012) A new marine ecosystem model for the University of Victoria Earth System Climate Model. Geoscientific Model Development, 5 . pp. 1195-1220. DOI 10.5194/gmd-5-1195-2012. For our Coastal Ocean Alkalinization (COA) experiments we modified four .F and .h files to UVic model Kiel version and add a new one (coa.F), for details see the list below. COA-experiments require the option "o_coa" to be turned on in mk.in. Please check the mentioned files for further details. Example is given in "Oliv100_Omega3.4" run folder. Please search key word “olivine” for locating the relevant module. - "coa.F" located at "updates/02/source/common/" where olivine particle properties and dissolution process are characterized - "gosbc.F" located at "updates/02/source/common/" where COA induced alkalinity is added whenever air-sea boundary conditions are updated. - "csbc.h" located at "updates/02/source/common/" where COA related public variables are defined - "diag.h" located at "updates/02/source/mom/" where COA related diagnostic (global average) public variables are defined -"diag.F" located at "updates/02/source/mom/" where COA related diagnostic variables are updated -"mom_tsi.F" located at "updates/02/source/mom/" where COA related global average output is written to the tsi.nc output file. Algorithm to simulate COA was initially introduced by Ellias Yuming Feng (see Thesis: Modeling Assessment of Climate Engineering, University Kiel, 2017). Code has been improved thereafter by Wolfgang Koeve (wkoeve@geomar.de). In tsi file, global averaged data has been stored. The related variables are namely: F_OLIVINE: global averaged added olivine in alkalinity unit (Alk umol m-2 s-1) F_OLIVINE_DIS: global averaged dissolved olivine in alkalinity unit (Alk umol m-2 s-1) F_OLIVINT: global total olivine addition (Pmol yr-1) F_OLIVINT_DIS：global total olivine dissolution (Pmol yr-1) In tavg.nc file, global distributed data in each grid box has been stored. The related variable is: F_alk: global distributed olivine dissolution in each grid box in alkalinity unit (Alk umol m-2 s-1) For model runs with weekly output, only global sea surface temperature, aragonite omega and pCO2 are saved in respective folders. Readers have to conduct model runs themselves if they want to check other variables. _________________________________________________________________ We provided the original sub panels of the figures in this folder ‘figure sources (.eps files). Indesign or Illustrator can be used to compile sub panels into the figures (.pdf) as presented in the paper. See Indesign file "Feng et al_EF.indd" for details. ________________________________________________________________ We provide script files used for data processing and respective output files in this folder “data processing" . Processing is organised according to figures shown in the paper. See the respective Read me files in the subfolders for details. In order to generate the correct figures/table, some additional files need to be copied into each figure fold. In each figure/table folder, you will find the essential data and the code to produce each figure/table. "coast_mask" folder includes the file "mask_c.nc", which will be used in generating some figures/tables "additional_data" includes ocean total alkalinity and DIC data from control run, which might be used in some figure generations "control_run" includes the tavg.nc output from control run. It is widely used.