This readme.txt file was generated on 20210717 by Xueying Yu


-------------------
GENERAL INFORMATION
-------------------


1. Title of Dataset: Updated Code of GEOS-Chem Adjoint v35 for TROPOMI Methane 4D-Var Inversion


2. Author Information

        Name: Xueying Yu
           Institution: University of Minnesota
           Email: yxying1993@gmail.com; yuxx0887@umn.edu

        Name: Dylan B. Millet
           Institution: University of Minnesota
           Email: dbm@umn.edu

        Name: Daven K. Henze
           Institution: University of Colorado Boulder
           Email: Daven.Henze@colorado.edu


3. Funding sources: NASA (#NNX17AK18G, #80NSSC18K1393)




--------------------------
SHARING/ACCESS INFORMATION
-------------------------- 


1. Links to publications that cite or use the data: 


2. Recommended citation for the data:

Yu, Xueying; Millet, Dylan B.; Henze, Daven K. (2021). Code Updates of GEOS-Chem Adjoint v35 for TROPOMI Methane 4D-Var Inversion. Retrieved from the Data Repository for the University of Minnesota, https://doi.org/10.13020/g5xc-nj81.

Yu, Xueying, Millet, Dylan B., Henze, Daven K. (2021). How well can inverse analyses of high-resolution satellite data resolve heterogeneous methane fluxes? Observing system simulation experiments with the GEOS-Chem adjoint model (v35), Geoscientific Model Development, 14(12), 7775-7793, 10.5194/gmd-14-7775-2021, 2021.

3. This archive includes a frozen version of the GEOS-Chem adjoint model code used for methane 4D-Var inversions. Those wishing to use the GEOS-Chem adjoint for research purposes should obtain the code via http://adjoint.colorado.edu:8080/. A general description of GEOS-Chem Adjoint is available at http://wiki.seas.harvard.edu/geos-chem/index.php/GEOS-Chem_Adjoint.

4. This archieved frozen version include updates in methane sources and sinks and related adjoint model operators.

5. GEOS-Chem, including developments, is distributed under the MIT "Expat" public license. http://acmg.seas.harvard.edu/geos/geos_licensing.html


---------------------
DATA & FILE OVERVIEW
---------------------


File List
1. code_ch4_4DVAR_OSSE_nondiag_fake_emissions_rrsd_timevarSF      
   Short description: Updated code of GEOS-Chem Ajoint v35 for TROPOMI methane 4D-Var Inversion.
2. input_example
   Short description: Example of synthetic observations.
3. output_example
   Short description: Example of output files.