GEOS-Chem v10-01
Contents
- 1 Overview
- 2 Previous issues now resolved in GEOS-Chem v10-01
- 2.1 Now use correct value of molecular weight for the PROPNN tracer in input.geos
- 2.2 Now use MAP_A2A to regrid 1x1 TOMS O3 to model resolution
- 2.3 Prevent sea salt from being emitted over ice in TOMAS
- 2.4 Bug fix for determining when to use TOMS O3 columns
- 2.5 Fixed library linking issue that prevented GTMM from being built into GEOS-Chem
- 2.6 Speed up computations in the Olson land map module
- 3 Outstanding issues not yet resolved in GEOS-Chem v10-01
Overview
History
The table below shows the previous, current, and successive versions of GEOS-Chem:
| Previous version | This version | Next version |
|---|---|---|
| GEOS-Chem v9-02 | GEOS-Chem v10-01 | TBD |
| PROVISIONAL RELEASE 17 Jan 2014 | TBD | TBD |
| View v9-02 benchmark history | View v10-01 benchmark history | TBD |
--Bob Y. 13:17, 16 January 2014 (EST)
What's new in this version
GEOS-Chem v10-01 will be released after a fixed interval of time (approxmiately 9 months after the release of the prior version, GEOS-Chem v9-02). The GEOS-Chem Steering Committee has prioritized the following updates and improvements for inclusion into GEOS-Chem v10-01. (This list is subject to change.) Updates that do not get included into GEOS-Chem v10-01 will be held over for the next version.
NOTE: v10-01a, v10-02b, etc. denote 1-month benchmark simulations, which are designed to evaluate GEOS-Chem's performance at intermediate stages of development.
Alternating stripes of color (white & cyan) in the table below group together features that were evaluated in the same 1-month benchmark.
| Feature | Type | Submitted by | Benchmark(s) | Status |
|---|---|---|---|---|
| Updates to dry deposition when using the Olson 2001 land map | Science | Patrick Kim (Harvard) | v10-01a | Approved 05 Feb 2014 |
| Now use correct molecular weight for the PROPNN tracer in input.geos | Bug fix | Jenny Fisher (U. Wollongong) | v10-01b | Approved 06 Mar 2014 |
| Use MAP_A2A to regrid 1x1 TOMS O3 to model resolution | Bug fix | Jintai Lin (Peking U.) | " " | " " |
| UCX strat chem mechanism, includes: | Science | UCX: Sebastian Eastham (MIT) Fast-JX: Jingqiu Mao (Princeton) |
v10-01c | In progress |
| Prevent sea salt from being emitted over ice in TOMAS simulations | Bug fix | Jeff Pierce (Colo. State) | " " | " " |
| Bug fix for determining when to use TOMS O3 columns | Bug fix | GEOS-Chem Support Team | " " | " " |
| Add support for TAU performance profiler | Structural | John Linford (ParaTools, Inc.) GEOS-Chem Support Team |
" " | " " |
| Fixed library linking issue that prevented GTMM from being built into GEOS-Chem | Bug fix | GEOS-Chem Support Team | " " | " " |
| HEMCO emissions component | Structural | Christoph Keller (Harvard) GEOS-Chem Support Team GMAO |
TBD | TBD |
| Online Radiative Transfer in GEOS-Chem | Science | David Ridley (MIT) Colette Heald (MIT) |
TBD | TBD |
| NEI 2008 emissions with hourly resolution | Science | Katie Travis (Harvard) | TBD | TBD |
| Update to MEGAN2.1 | Science | Dylan Millet (U. Minnesota) | TBD | TBD |
| Update to EDGAR 4.2 anthropogenic emissions | Science | Meng Li and Qiang Zhang (Tsinghua) Sajeev Philip (Dalhousie) |
TBD | TBD |
| PAN / Organics | Science | Emily Fischer (CSU) | TBD | TBD |
| CO2 direct effect on isoprene emissions | Science | Amos Tai (The Chinese University of Hong Kong) | TBD | TBD |
| Arctic Hg cycling | Science | Jenny Fisher (U. Wollongong) | TBD | TBD |
| Criegee intermediate | Science | Dylan Millet (U. Minnesota) | TBD | TBD |
| Impaction scavenging for hydrophobic BC | Science | Qiaoqiao Wang (formerly Harvard, now Max-Planck Institute) | TBD | TBD |
| Homogeneous IN removal | Science | Qiaoqiao Wang (formerly Harvard, now Max-Planck Institute) | TBD | TBD |
| MASAGE NH3 inventory | Science | Fabien Paulot (Harvard) | TBD | TBD |
| HTAP and hi-res Asian emissions | Science | Qiang Zhang (Tsinghua U.) | TBD | TBD |
| Two-way coupling between global and nested GEOS-Chem models | Science | Jintai Lin (Peking U.) | TBD | TBD |
| Improve temporal resolution of anthropogenic CO2 sources | Science | Ray Nassar (Environment Canada) | TBD | TBD |
| Replace CASA CO2 biosphere climatology with year-specific fluxes | Science | Ray Nassar (Environment Canada) Dylan Jones (U. Toronto) |
TBD | TBD |
| Acid uptake on dust aerosols | Science | T. Duncan Fairlie (NASA/LARC) | TBD | TBD |
| UNEP 2010 anthropogenic Hg emissions | Science | Shaojie Song (MIT) | TBD | TBD |
| Historical anthropogenic atmospheric emissions of Hg | Science | Bess Corbitt (Harvard) | TBD | TBD |
| Subsurface ocean Hg concentration update | Science | Anne Soerensen (Harvard) | TBD | TBD |
| NEI 2008 Hg emission inventory | Science | Yanxu Zhang (Harvard) | TBD | TBD |
| RRTMG radiative transfer code in APM aerosol microphysics | Science | Fangqun Yu (SUNY Albany) | TBD | TBD |
| Interannual lightning | Science | Lee Murray (Harvard) | TBD | TBD |
| FINN biomass burning emissions | Science | Jenny Fisher (U. Wollongong) Min Huang (JPL) |
TBD | TBD |
| Updates to PAH code | Science | Carey Friedman (MIT) Helen Amos (Harvard) |
TBD | TBD |
| Improved dust size distribution scheme | Science | Li Zhang (Colorado U.) Daven Henze (Colorado U.) |
TBD | TBD |
| Update EMEP emissions for 2008-2010 | Science | Aaron van Donkelaar (Dalhousie) | TBD | TBD |
--Melissa Sulprizio 11:18, 5 March 2014 (EST)
New data directories
The following new data directories have been added for GEOS-Chem v10-01. You will have to download the directories relevant to your simulation.
You can download these directories with anonymous FTP or the Wget utility. For instructions, please see Chapter 2.4, Downloading the GEOS-Chem shared data directories in the GEOS-Chem Online User's Guide.
GEOS_NATIVE/UCX_201403 # Input files for the UCX mechanism
--Melissa Sulprizio 15:24, 24 February 2014 (EST)
Previous issues now resolved in GEOS-Chem v10-01
Now use correct value of molecular weight for the PROPNN tracer in input.geos
This update was tested in the 1-month benchmark simulation v10-01b and approved on 06 Mar 2014.
This unresolved issue from GEOS-Chem v9-02 has now been corrected.
--Bob Y. 15:45, 12 March 2014 (EDT)
Now use MAP_A2A to regrid 1x1 TOMS O3 to model resolution
This update was tested in the 1-month benchmark simulation v10-01b and approved on 06 Mar 2014.
For complete information about this issue, please see this post on our Photolysis mechanism wiki page.
--Bob Y. 15:47, 12 March 2014 (EDT)
Prevent sea salt from being emitted over ice in TOMAS
This update is being tested in the 1-month benchmark simulation v10-01c.
For complete information about this issue, please see this post on our TOMAS aerosol microphysics wiki page.
--Bob Y. 15:52, 12 March 2014 (EDT)
Bug fix for determining when to use TOMS O3 columns
This update is being tested in the 1-month benchmark simulation v10-01c.
For complete information about this issue, please see this post on our Photolysis mechanism wiki page.
--Bob Y. 15:57, 12 March 2014 (EDT)
Fixed library linking issue that prevented GTMM from being built into GEOS-Chem
This update is being tested in the 1-month benchmark simulation v10-01c.
For complete information about this issue, please see this post on our Global Terrestrial Mercury Model wiki page.
--Bob Y. 15:05, 19 March 2014 (EDT)
Speed up computations in the Olson land map module
This update is being tested in the 1-month benchmark simulation v10-01c.
Using the Tuning and Analysis Utilities (TAU) software, we have found and fixed a computational bottleneck in routine COMPUTE_OLSON_LANDMAP (in module file GeosCore/olson_landmap_mod.F90). For a full description of this issue, please see this post on our Olson land map wiki page.
--Bob Y. 10:49, 21 March 2014 (EDT)
Outstanding issues not yet resolved in GEOS-Chem v10-01
TBD
