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  • ...n) and temporal resolution (hourly data and 3-hourly data) than older GMAO met products such as [[GEOS-5]], [[MERRA|the MERRA reanalysis]], and [[GMAO GEO ...f GMAO FP data archive]. On this page we list the [[GEOS-FP|GMAO FP]] met fields that archive for use with GEOS-Chem.
    25 KB (3,881 words) - 18:59, 13 February 2024

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  • !Met Type *[[GEOS-Chem_v10-01#What.27s_new_in_this_version|'''See complete list here''']]
    166 KB (26,088 words) - 18:43, 28 May 2020
  • ...enceforth denote GEOS-Chem versions as '''GEOS-Chem v9-02''', etc. instead of using the previous nomenclature (e.g. '''GEOS-Chem v9-01-03''').'' In this section we provide basic information about this version of GEOS-Chem.
    99 KB (14,884 words) - 20:45, 20 September 2022
  • ...closely to software development best practices. For a complete description of the new versioning system, please see [[GEOS-Chem version numbering system| !Met Type
    158 KB (24,655 words) - 18:49, 28 May 2020
  • ...GEOS-FP met fields for the year 2013, with a 4-year spinup. For comparison of the Pb-210 and Be-7 budgets to previous versions, please see the following #[[Rn-Pb-Be_simulation#Budget_of_Pb210|Budget of Pb210 from 1-year benchmark simulations]]
    154 KB (24,591 words) - 21:08, 20 September 2022
  • The table below shows the previous, current, and successive versions of GEOS-Chem: === Period of public comment ===
    99 KB (15,209 words) - 20:26, 20 September 2022
  • ...ot yet been assigned to a specific GEOS-Chem version. For a complete list of these updates, please visit [[GEOS-Chem model development priorities|our '' ...a new research project. That version corresponds to the '''main''' branch of the [https://github.com/geoschem/geos-chem GEOS-Chem source code repository
    133 KB (18,781 words) - 21:13, 21 June 2021
  • ...estimated based on one branch of the acetone decomposition, a distinct set of cross sections from JPL 10-06 are used. ...ction. The UCX allows either this approach, as was used for the production of the results shown, or can employ calculated ozone mixing ratios instead, al
    59 KB (8,891 words) - 18:49, 11 February 2023
  • In the tables below, we list information about current and past GEOS-Chem releases. ...docs/supplemental-guides/related-docs.html Visit this link] to view a list of manual pages for GEOS-Chem 14 and related software.
    46 KB (5,503 words) - 16:29, 2 April 2024
  • ...closely to software development best practices. For a complete description of the new versioning system, please see [[GEOS-Chem version numbering system| The table below shows the previous, current, and successive versions of GEOS-Chem:
    88 KB (13,616 words) - 21:07, 20 September 2022
  • !Met Type !Met Type
    68 KB (10,687 words) - 22:14, 19 June 2017
  • ...nted manually. Currently, there is not an adjoint equivalent of every part of GEOS-Chem. The FORTRAN code that is GEOS-Chem adjoint can perform a number of calculations: sensitivity calculations (most efficient if ''y'' in <span c
    80 KB (12,285 words) - 16:56, 18 June 2019
  • == List of issues == ...f the code that we are using (the one from Xuan's paper, v11-02d), not all of the netCDF diagnostics work. So we are unable to test this fix for the net
    70 KB (10,330 words) - 21:56, 20 December 2019
  • On this page we list the various diagnostic quantities that you can archive with GEOS-Chem. The The tables below list the following parameters for each diagnostic that is archived to bpch forma
    133 KB (18,925 words) - 19:57, 16 September 2022
  • On this page we provide instructions for how to process the [[GEOS-FP]] met fields from the raw data files into the netCDF files that are read by GEOS-Chem. ...GEOS.fp.asm</tt>, which indicates that the data is the GEOS-FP assimilated met product
    39 KB (6,282 words) - 11:36, 9 October 2018
  • The table below shows the previous, current, and successive versions of GEOS-Chem: ...performance at intermediate stages of development.<br>Alternating stripes of color (white & cyan) in the table below group together features that were e
    43 KB (6,754 words) - 15:22, 19 June 2019
  • On this page we list the GEOS-Chem specific bugs and issues (and their fixes) that were reported ...Please see [[Bugs and fixes|our ''Bugs and fixes'' wiki page]] for a table of links to the relevant Github version milestones.
    41 KB (6,194 words) - 14:22, 22 March 2021
  • #An icebreaker social for young scientists will be organized on the evening of Sunday May 1. This will be an opportunity for graduate students and postdoc ...y 4 at 12 pm) will be devoted to general scientific sessions and should be of broad interest to the atmospheric composition research community.
    20 KB (3,183 words) - 14:05, 19 June 2019
  • Intel Fortran requires the purchase of an expensive site license. If your institution does not have the resources ...IFORT 15 has a compiler bug]] that causes errors when turning on array-out-of-bounds checking and optimization.
    55 KB (8,425 words) - 17:57, 24 October 2023
  • .... We invite you to consult [[GEOS-Chem_basics#Fortran_resources|this list of Fortran tutorials]]. F90 contains all of the features of F77. Legacy code adhering to the F77 standard should build with any F90 co
    49 KB (7,048 words) - 19:59, 20 September 2022
  • ...r bugs|our ''Known issues caused by compiler bugs'' wiki page]] for a list of compiler-related issues and workarounds. ..._of_SO4s.2C_NITs_in_SEASALT_CHEM_routine|(v11-02a) Fix error in production of SO4s and NITs in SEASALT_CHEM routine]]
    33 KB (5,225 words) - 20:46, 2 January 2019
  • ...is is not done properly, it can cause GEOS-Chem to use an excessive amount of memory and take longer to run, especially at very fine resolutions. The fo This very technical description of how Fortran passes arrays to subroutines is taken from the [http://acmg.sea
    41 KB (5,296 words) - 20:26, 3 January 2017
  • Thank you for your continued support of GEOS-Chem. Happy Equinox! If you would like to bring any items to the attention of the Steering Committee before the next telecon,
    14 KB (2,161 words) - 18:18, 8 December 2016
  • ...GEOS-FP|GEOS-5 "forward processing" (what we call GEOS-FP)]] and [[MERRA]] met field product. #[[List of MERRA-2 met fields|List of MERRA-2 met fields for GEOS-Chem]]
    25 KB (3,634 words) - 18:47, 28 May 2020
  • On this page we list information about the stratospheric chemistry mechanism in GEOS-Chem. ''For the influence of stratospheric composition on tropospheric photolysis rates, see our [[Photo
    47 KB (6,806 words) - 16:46, 15 October 2019
  • Here is your August 2010 GEOS-Chem Newsletter...just in time for the dog days of summer! Thank you for your continued support of GEOS-Chem. Stay cool!
    12 KB (1,942 words) - 18:13, 8 December 2016
  • #An icebreaker social for young scientists will be organized on the evening of Sunday May 1. This will be an opportunity for graduate students and postdoc ...y 4 at 12 pm) will be devoted to general scientific sessions and should be of broad interest to the atmospheric composition research community.
    15 KB (2,259 words) - 18:25, 8 December 2016
  • ...that were discovered and fixed prior to GEOS-Chem versions 7 and 8. Many of these fixes were now in source code modules that have since been removed fr ...Patch to fix declaration of IONIC in ISORROPIA_II|Patch to fix declaration of IONIC in ISORROPIA_II]]
    9 KB (1,581 words) - 20:46, 2 January 2019
  • !width="70px"|Met Type ...te lightning BETA values and OTD/LIS files for consistency with latest met fields]]
    47 KB (6,910 words) - 19:14, 14 December 2022
  • ...sions of GNU Fortran to build GEOS-Chem. Here is the compatibility matrix of GEOS-Chem versions vs. supported GNU Fortran compiler versions. We invite you to test with other versions of GNU Fortran. Please send your results to the [[GEOS-Chem Support Team]].
    52 KB (7,498 words) - 17:56, 24 October 2023
  • We are in the process of planning the meeting. Please keep checking ...de of Harvard. This change was made abruptly, and we were only made aware of it recently.
    12 KB (1,902 words) - 18:22, 8 December 2016
  • Since last April's GEOS-Chem meeting, a number of [[GEOS-Chem model development priorities]] that were identified by the Stee *Merged 3 branches of adjoint
    13 KB (1,989 words) - 18:12, 8 December 2016
  • On this page we list some tips & tricks for reading and writing files with GAMAP. Please also s # GEOS-Chem binary met field data format
    41 KB (6,157 words) - 14:19, 19 July 2023
  • ...2.8.0/GCC/Plots/Budget/GC_12.8.0_operations_budgets_Jul2016.txt Comparison of stratosphere and troposphere budgets] .../ExtData/HEMCO/CMIP6/v2020-03/README Shift CMIP6 time from middle to start of month to allow start in January]
    148 KB (20,511 words) - 17:29, 25 June 2020
  • ...aimed at extending the model on-line capabilities concerning calculations of [[Aerosol optical properties]]. For a brief overview, check out the [https: |Loop script for automatic launch and post-processing of libRadtran output at several wavelengths
    22 KB (3,327 words) - 20:58, 20 September 2022
  • ...ov/GMAO_products/NRT_products.php version 5.12.4]. Overall, the structure of MERRA-2 is very similar to the GMAO "forward processing" data product, whic *[[List of MERRA-2 met fields|List of MERRA-2 met fields used for GEOS-Chem]]
    25 KB (3,861 words) - 18:49, 28 May 2020
  • ...ed Happy St. Patrick's Day to one and all! Here is the March 2009 edition of the GEOS-Chem newsletter. ...uestion at the same time. This will allow us to serve you better. If one of us is unavailable then the others will be able to respond to you.
    8 KB (1,338 words) - 15:19, 19 June 2019
  • ...how to use the [[GEOS-Chem Unit Tester]] to generate and use fresh copies of run directories for your GEOS-Chem simulations. ..._GEOS-Chem_12#Requirements|has these software packages installed]]. (Most of these come standard with your Unix-based operating system.)
    16 KB (2,212 words) - 21:31, 8 December 2020
  • ...2]] is a new NASA/GMAO reanalysis product. It has a horizontal resolution of 0.5&deg; lat x 0.625&deg; lon x 72 vertical levels. The horizontal resolut ...t of the entire MERRA-2 data archive. On this page we list the MERRA-2 met fields that we archive for use with GEOS-Chem.
    22 KB (3,364 words) - 02:50, 9 July 2019
  • ...llowing benchmark simulations have been done with a few different versions of GEOS-5 meteorology: At present, all of the GEOS-5.0.1 met data files for GEOS-Chem are being replaced with the newer GEOS-5.1.0 data
    23 KB (3,442 words) - 17:39, 15 November 2017
  • ...s that will be used to initialize species concentrations at the boundaries of your nested grid region. ...read the global emissions data and regrid/crop them on-the-fly to the size of the nested grid.
    11 KB (1,499 words) - 19:04, 13 July 2020
  • This page includes information about GEOS-Chem 14.4.0. For a list of updates prioritized for future versions, please see our [[GEOS-Chem model d |UCX bug fixes : (1) Use proper 4th index for WERADIUS array; (2) Get density of black carbon from the species database
    80 KB (10,560 words) - 19:22, 7 May 2024
  • ...seas.harvard.edu/geos-welcome I am a GEOS-Chem new user. What is expected of me?] * [[Species in GEOS-Chem|What types of simulations can I run with GEOS-Chem?]]
    5 KB (725 words) - 18:06, 20 September 2022
  • ...pendence_of_stomatal_resistance|Simple parameterization for CO2 dependence of stomatal resistance]] (off by default) |[[GEOS-Chem chemistry mechanisms#Correcting ozone from the height of the lowest model level to 10m|Surface diagnostic (O3, HNO3) with user-selec
    108 KB (15,559 words) - 16:40, 15 October 2019
  • ...ues/362 Bug fix: Remove inefficient code that was slowing down computation of heterogenous chemistry rates] *[https://github.com/geoschem/geos-chem/issues/333 Change units of ObsPack specific humidity (Q) field to g/kg]
    114 KB (16,240 words) - 11:56, 15 July 2020
  • *Remove the 27% scaling of POG to POA and emit 1:1 instead |Version, resolution, met fields used:
    71 KB (9,614 words) - 16:19, 26 August 2020
  • |Version, resolution, met fields used: *Ran on 24 CPUs of holyjacob01.rc.fas.harvard.edu (Intel(R) Xeon(R) CPU E5-2680 v3 "Haswell" @
    96 KB (13,416 words) - 13:11, 10 October 2019
  • ...d you check this list to make sure there is not a known issue with the met fields on that day. Below we list the [[GEOS-FP]] met field files that have been reprocessed.
    10 KB (1,329 words) - 17:09, 11 August 2017
  • ...PCORE replaced with version based on GMI model|Installation of new version of TPCORE (based on GMI model) to fix polar overshoot in stratosphere]] * [[#Output of ND51 does not match output in the ctm.bpch file|Minor bug fix for ND51 diag
    8 KB (1,244 words) - 17:38, 15 November 2017
  • On this page we list various updates to GEOS-Chem's lightning NOx emissions algorithm. the lack of your met fields at Harvard.
    13 KB (1,787 words) - 20:53, 27 November 2018
  • *[https://geos-chem.seas.harvard.edu/geos-overview Overview of GEOS-Chem and its user community] ...tps://geos-chem.seas.harvard.edu/geos-chem-narrative Narrative description of GEOS-Chem]
    5 KB (610 words) - 15:04, 10 April 2024
  • ...ww.atmos-chem-phys.net/19/9097/2019/acp-19-9097-2019.html Methanol as part of standard chemical mechanism] |Add GEOS-Chem "dry-run" option to obtain a list of required input files
    53 KB (7,304 words) - 17:04, 13 February 2020
  • |Version, resolution, met fields used: *Ran on 24 CPUs of holy2c12205.rc.fas.harvard.edu (Intel(R) Xeon(R) CPU E5-2683 v4 @ 2.10GHz)
    44 KB (6,246 words) - 13:27, 28 May 2019
  • On this page we list various bugs that have been encountered in GAMAP and how to fix them. For :I've found a bug in version v2.12 of gamap with the program: <tt>gc_combine_nd49.pro</tt>.
    16 KB (2,641 words) - 19:09, 16 September 2022
  • ! Met Field Type | GEOS-5 4x5 version 5.1.0,<br>"reprocessed" met fields<br><br>spinup: 2004<br>run: 2005
    15 KB (2,286 words) - 17:40, 15 November 2017
  • |[[GEOS-Chem v9-01-01#What's new in this version|See this listing of new features in v9-01-01]] |[[GEOS-Chem v9-01-01#What's new in this version|See this listing of new features in v9-01-01]]
    6 KB (976 words) - 16:47, 9 February 2016
  • ...ve not been recreated in GCPy yet. To view the entirety of the old version of benchmark plots created by GAMAP, visit http://ftp.as.harvard.edu/gcgrid/ge ...sions_year_in_HEMCO|Add option to always use simulation year for specified fields]]
    21 KB (3,084 words) - 18:27, 4 June 2019
  • ...nt (POPs) simulations are encouraged to subscribe to the Hg and POPs email list (click on the link in the [[#Contact information|contact information sectio ...sher] (GitHub: [https://github.com/jennyfisher @jennyfisher]) - ''on leave of absence until July 2024''
    4 KB (574 words) - 17:22, 24 October 2023
  • <span style="color:red">'''''NASA/GMAO ceased production of MERRA data in mid-2015.'''''</span> <span style="color:red">'''''The current operational GMAO met data product is now the [[GEOS-FP]] operational product , which is supporte
    1 KB (215 words) - 19:36, 9 February 2016