HEMCO data directories
On this page we describe the directory tree from which the HEMCO emissions component can read emissions inventories and other atmospheric data sets.
Contents
Overview
The HEMCO emissions component can read several types of emission inventories, as well as other types atmospheric data sets, such as production and loss rates, or concentration data. We have collated all of this data into a comprehensive directory tree structure. Each folder of the HEMCO data directory tree represents a particular emissions inventory or other data set.
At present, the HEMCO data directory tree resides on the disk servers at Harvard University (and soon at Dalhousie University). We have created a package that will let you download this directory tree to your local disk storage space. For more information, please see the Downloading the HEMCO data directories section below.
Please see our list of recommended default emission inventories, which has been compiled by the Emissions and Deposition Working Group.
--Bob Yantosca (talk) 22:27, 7 September 2017 (UTC)
Downloading the HEMCO data directories
We recommend the following methods for downloading the HEMCO data directories, depending on which GEOS-Chem version you are using:
GEOS-Chem versions | Recommended download method | Alternate download method |
---|---|---|
12.7.0 and later | The GEOS-Chem dry-run option | Manual download from either |
12.6.3 and prior | The hemco_data_download package | Manual download from either |
--Bob Yantosca (talk) 17:07, 3 December 2020 (UTC)
HEMCO data directories corresponding to an emissions option
The sections below describe each of the data directories corresponding to a HEMCO inventory or extension. These are grouped in the order in which they appear in the HEMCO_Config.rc version that ships with GEOS-Chem 13.0.0.
In each of the tables below:
- The Inventory column contains a link that describes each data set in more detail. Most of these links point to existing pages on the GEOS-Chem wiki.
- The Data file info column points to the README files that are stored with each data set. Each README provides a list of the files contained within a given folder, information about the data contained in each file, and (often) a description of how the files were created.
- The Path column shows the location of each data set, with respect to $ROOT, the top-level HEMCO directory. For example, on the Harvard disk server, $ROOT points to the directory /mnt/gcgrid/data/ExtData/HEMCO/.
- The Default or optional? column contains this description
DEFAULT SETTING Denotes that the data set is part of the standard emissions configuration for GEOS-Chem, that is: - It is used in the GEOS-Chem 1-month and 1-year full-chemistry benchmark simulations, or
- It is used in one or more of the GEOS-Chem specialty simulations.
OPTIONAL SETTING Denotes that the data set is not part of the the standard GEOS-Chem emissions configuration. - But you can still use the data set in your research applications if you wish.
- If use GEOS-Chem, then we recommend that you download the data sets that are listed as DEFAULT SETTING, as these form the standard GEOS-Chem emissions configuration. You are free, however, to use any of the data sets listed below. Your choice of data sets will depend on your particular research needs.
Regional inventories
Inventory | More info | Path | Data size | Default or Optional? |
---|---|---|---|---|
APEI
|
README | $ROOT/APEI/v2016-11/ | 68 MB | OPTIONAL SETTING |
NEI2011_HOURLY
|
README | $ROOT/NEI2011/v2015-03 | 248 GB | OPTIONAL SETTING |
NEI2011_MONTHLY_MEAN
|
README | $ROOT/NEI2011/v2017-02-MM | 248 GB | OPTIONAL SETTING |
MIX
|
README | $ROOT/MIX/v2015-03 | 623 MB | OPTIONAL SETTING |
DICE_Africa
|
README | $ROOT/DICE_Africa/v2016-10 | 202 MB | OPTIONAL SETTING |
Global inventories
The following subdirectories of the HEMCO directory tree contain inventories of anthropogenic and biofuel emissions.
Please also see list of species included in each of these global inventories and regional inventories.
Inventory | More info | Path | Data size | Default or Optional? |
---|---|---|---|---|
CEDS
|
README | $ROOT/CEDS/v2020-08 | 73 GB | DEFAULT SETTING |
CEDS_byFuelType
|
README | $ROOT/CEDS/v2020-08 | 73 GB | OPTIONAL SETTING |
EDGARv43
|
README | $ROOT/EDGARv43/v2016-11 | 6.2 GB | OPTIONAL SETTING |
HTAP
|
README | $ROOT/HTAP/v2015-03 | 4.5 GB | OPTIONAL SETTING |
GEIA_NH3
|
README | $ROOT/NH3/v2014-07 | 8.1 MB | DEFAULT SETTING |
SEABIRD_NH3
|
README | HEMCO/NH3/v2018-04/ | 104 MB | DEFAULT SETTING |
POET
|
README | $ROOT/POET/v2017-03/ | 38 MB | OPTIONAL SETTING |
TZOMPASOSA_C2H6
|
README | $ROOT/C2H6_2010/v2019-06 | 536 KB | DEFAULT SETTING |
XIAO_C3H8
|
README | $ROOT/XIAO/v2014-09 | 308 KB | DEFAULT SETTING |
LIANG_BROMOCARB
|
README | $ROOT/BROMINE/v2015-02 | 156 KB | DEFAULT SETTING |
ORDONEZ_IONOCARB
|
README | $ROOT/IODINE/v2017-09 | 4.4 MB | DEFAULT SETTING |
AEIC
|
README | $ROOT/AEIC/v2015-01 | 2.0 GB | DEFAULT SETTING |
DECAYING_PLANTS
|
README | $ROOT/ALD2/v2017-03 | 8.1 MB | DEFAULT SETTING |
AFCID
|
README | $ROOT/AFCID/2018-04 | 4.4 MB | DEFAULT SETTING |
Ship emissions
The following subdirectories of the HEMCO directory tree contain inventories of anthropogenic aircraft and ship emissions.
Inventory | More info | Path | Data size | Default or Optional? |
---|---|---|---|---|
CEDS_SHIP
|
README | $ROOT/CEDS/v2020-08 | 73 GB | DEFAULT SETTING |
CEDS_SHIP_byFuelType
|
README | $ROOT/CEDS/v2020-08 | 73 GB | OPTIONAL SETTING |
HTAP_SHIP
|
README | $ROOT/HTAP/v2015-03 | 4.5 GB | OPTIONAL SETTING |
ICOADS_SHIP
|
README | $ROOT/ICOADS_SHIP/v2014-07 | 4.2 MB | OPTIONAL SETTING |
ARCTAS_SHIP
|
README | $ROOT/ARCTAS_SHIP/v2014-07 | 508 KB | OPTIONAL SETTING |
CORBETT_SHIP
|
README | $ROOT/CORBETT_SHIP/v2014-07 | 1.8 MB | OPTIONAL SETTING |
NEI2011_SHIP
|
README | $ROOT/NEI2011/v2015-03 | 248 GB | OPTIONAL SETTING |
NEI2011_SHIP_MONMEAN
|
README | $ROOT/NEI2011/v2017-02-MM | 248 GB | OPTIONAL SETTING |
NOTES about ship emissions:
- CEDS ship emissions are the default ship inventory in GEOS-Chem 12.1.0 and later versions.
- Data files for CEDS ship emissions are stored with the other CEDS emission sector files in the HEMCO data path: $ROOT/CEDS/v2018-04/.
- If CEDS emissions are turned off above then:
- ARCTAS should be used over ICOADS, CORBETT, and HTAP for SO2
- ICOADS should be used for CO and NO.
- The NEI2011 ship emissions data only extends a few km from land. They are therefore coastal emissions inventories and not global emissions inventories.
Future emissions
Inventory | More info | Path | Data size | Default or Optional? |
---|---|---|---|---|
RCP_3PD
|
README | $ROOT/RCP/v2020-07/RCP_3PD | 91 MB | OPTIONAL SETTING |
RCP_45
|
README | $ROOT/RCP/v2020-07/RCP_45 | 93 MB | OPTIONAL SETTING |
RCP_60
|
README | $ROOT/RCP/v2020-07/RCP_60 | 92 MB | OPTIONAL SETTING |
RCP_85
|
README | $ROOT/RCP/v2020-07/RCP_85 | 93 MB | OPTIONAL SETTING |
Biomass burning emissions (not implemented as extensions)
NOTE: Some biomass burning inventories are implemented as HEMCO extensions. See the Emissions implemented as HEMCO extensions below for more information.
The following subdirectories of the HEMCO directory tree contain inventories of biomass burning emissions.
Inventory | More info | Path | Data size | Default or Optional? |
---|---|---|---|---|
GFAS
|
README | $ROOT/GFAS/v2018-09 | 49 GB | OPTIONAL SETTING
|
QFED
|
README | $ROOT/QFED/v2018-07 | 247 GB | OPTIONAL SETTING |
Offline grid-independent emissions
Offline grid-independent emissions were generated by running high-resolution (0.25°x0.3125° for GEOS-FP, 0.5°x0.625° for MERRA-2) simulations using the HEMCO standalone and online emissions from the HEMCO extensions.
Inventory | More info | Path | Data size | Default or Optional? |
---|---|---|---|---|
OFFLINE_DUST
|
README | $ROOT/OFFLINE_DUST/v2019-01 | 18 GB | DEFAULT SETTING |
OFFLINE_BIOGENICVOC
|
README | $ROOT/OFFLINE_BIOVOC/v2019-01 | 1400 GB | DEFAULT SETTING |
OFFLINE_SEASALT
|
README | $ROOT/OFFLINE_SEASALT/v2019-01 | 876 GB | DEFAULT SETTING
|
OFFLINE_SOILNOX
|
README | $ROOT/OFFLINE_SOILNOX/v2019-01 | 48 GB | DEFAULT SETTING |
Non-emissions data
The following subdirectories of the HEMCO directory tree input data contains non-emissions data sets. Most of these are used as inputs to GEOS-Chem's chemistry modules (i.e. photolysis, stratospheric chemistry, etc.).
Inventory | More info | Path | Data size | Default or Optional? |
---|---|---|---|---|
UVALBEDO
|
README | $ROOT/UVALBEDO/v2019-06 | 476 KB | DEFAULT SETTING |
CCM_STRAT_Bry
|
README | $ROOT/STRAT/v2015-01/Bry | 385 MB | DEFAULT SETTING |
GMI_STRAT_OH
|
README | $ROOT/GMI/v2015-02 | 16 GB | DEFAULT SETTING |
GMI_PROD_LOSS
|
DEFAULT SETTING | |||
UCX_PROD_LOSS
|
README | $ROOT/UCX/v2018-02 | 12 GB | OPTIONAL SETTING |
OMOC_RATIO
|
README | $ROOT/OMOC/v2018-01 | 8.6 MB | OPTIONAL SETTING |
GMD_SFC_CH4
|
[1] | $ROOT/NOAA_GMD/v2018-01 | 85 MB | DEFAULT SETTING |
CMIP6_SFC_CH4
|
[2] | $ROOT/CMIP6/v2019-12 | 85 MB | OPTIONAL SETTING |
OLSON_LANDMAP
|
README | $ROOT/OLSON_MAP/v2019-02 | 1.9 MB | DEFAULT SETTING |
YUAN_MODIS_LAI
|
README | $ROOT/Yuan_XLAI/v2019-03 | 203 MB | DEFAULT SETTING |
RRTMG
|
README | $ROOT/RRTMG/v2018-11 | 19 MB | OPTIONAL SETTING |
SfcVMR
|
HEMCO/SfcFix/v2019-12 | 851 MB | DEFAULT SETTING | |
OCEAN_O3_DRYDEP
|
README | HEMCO/OCEAN_O3_DRYDEP/v2020-02 | 388 MB | DEFAULT SETTING |
Emissions implemented as HEMCO extensions
The following subdirectories of the HEMCO directory tree contain input data used by various HEMCO extensions. These HEMCO extensions compute emissions for quantities that depend on meteorological variables (e.g. emissions from lighting, biogenic processes, etc.).
Inventory | More info | Path | Data size | Default or Optional? |
---|---|---|---|---|
SeaFlux
|
README1 README2 README3 |
$ROOT/ACET/v2014-07 $ROOT/ALD2/v2017-03 $ROOT/DMS/v2015-07 |
5.8 MB | DEFAULT SETTING |
ParaNOx
|
README | $ROOT/PARANOX/v2015-02 | 162 MB | DEFAULT SETTING |
LightNOx
|
README | $ROOT/LIGHTNOX/v2017-09 | 32 MB | DEFAULT SETTING |
SoilNOx
|
README | $ROOT/SOILNOX/v2014-07 | 730 MB | OPTIONAL SETTING |
DustDead
|
README | $ROOT/DUST_DEAD/2014-07 | 712 KB | OPTIONAL SETTING |
DustGinoux
|
README | $ROOT/DUST_GINOUX/2014-07 | 36 KB | OPTIONAL SETTING |
SeaSalt
|
Does not have an associated data directory | OPTIONAL SETTING | ||
MEGAN
|
README | $ROOT/MEGAN/v2018-05 | 12 MB | DEFAULT SETTING |
GFED4
|
README | $ROOT/GFED4/v2020-02 | 296 MB | DEFAULT SETTING |
FINN
|
README | $ROOT/FINN/v2015-02 | 1.2 GB | OPTIONAL SETTING |
DustAlk
|
Does not have an associated data directory. | OPTIONAL SETTING | ||
Volcano
|
README | $ROOT/VOLCANO/v2019-08 | 63 MB | DEFAULT SETTING |
Inorg_Iodine
|
Does not have an associated data directory. | DEFAULT SETTING |
Other HEMCO data directories
In each of the tables below:
- The Directory column contains a description of the directory and its contents.
- The More info column points to the README files that are stored with each data set.
- The Path column shows the location of each data set, with respect to $ROOT, the top-level HEMCO directory. For example, on the Harvard disk server, $ROOT points to the directory /mnt/gcgrid/data/ExtData/HEMCO/.
- The Used by? column lists in which context the data in each directory is used.
HEMCO scale factors, masks, and other data
The following subdirectories of the HEMCO directory tree contain scale factors for various emissions inventories
Directory | More info | Path | Data size | Used by? |
---|---|---|---|---|
Active inventories (turned ON by default in the standard emissions configuration) | ||||
AnnualScalar
|
README | $ROOT/AnnualScalar/v2014-07 | 3.0 MB | Only needed for the following inventories:
|
NEI2005
|
README | $ROOT/NEI2005/v2014-09 | 8.1 MB | Only needed for the following inventories:
|
MASKS
|
README | $ROOT/MASKS/v2014-07 | 148 MB | Needed for regional emissions inventories |
COUNTRY_ID
|
README | $ROOT/COUNTRY_ID/v2015-04 | 15 MB | Not currently used, but is available for research needs |
TIMEZONES
|
README | $ROOT/TIMEZONES/v2015-02 | 264 KB | This data will always be read by HEMCO, regardless of simulation type |
GEOS-Chem specialty simulation data
The following subdirectories of the HEMCO directory tree input data (emissions, oxidants, etc.) for use with the GEOS-Chem specialty simulations (i.e. those that do not use the fullchem mechanism). If you do not regularly use these simulations, you may choose not to download these data directories.
Directory | More info | Path | Data size | Used by? |
---|---|---|---|---|
CH4
|
README1 README2 |
$ROOT/CH4/v2017-10 $ROOT/CH4/v2014-09 |
6.6 GB | |
CO2
|
README1 README2 README3 README4 README5 README6 |
$ROOT/CO2/v2015-04 $ROOT/CO2/v2015-04/BIO/ $ROOT/CO2/v2015-04/BIOFUEL/ $ROOT/CO2/v2015-04/CHEM/ $ROOT/CO2/v2015-04/FOSSIL/ $ROOT/CO2/v2015-04/OCEAN/ |
1.5 GB | |
CHLA
|
README | $ROOT/CHLA/v2014-07 | 2.0 MB | |
MERCURY
|
README1 README2 README3 README4 README5 README6 README7 README8 README9 README10 |
$ROOT/MERCURY/v2014-09 $ROOT/MERCURY/v2014-09/ARTISANAL $ROOT/MERCURY/v2014-09/BrOx $ROOT/MERCURY/v2014-09/Hg2_PARTITION $ROOT/MERCURY/v2014-09/JVALUES $ROOT/MERCURY/v2014-09/NATURAL $ROOT/MERCURY/v2014-09/NEI2005 $ROOT/MERCURY/v2014-09/OCEAN $ROOT/MERCURY/v2014-09/SOIL $ROOT/MERCURY/v2014-09/STREETS |
3.0 GB | |
O3
|
README | $ROOT/O3/v2014-09 | 130 MB | |
OFFLINE_AEROSOL
|
README | $ROOT/OFFLINE_AEROSOL/v2014-09 | 165 MB | |
OH
|
README1 README2 |
$ROOT/OH/v2014-09 $ROOT/OH/v2014-09/v5-07-08 $ROOT/OH/v2014-09/v7-02-03.GMI |
95 MB | |
OXIDANTS
|
README | $ROOT/OXIDANTS/v2014-07 | 32 MB | |
POPs
|
README | $$ROOT/POPs/v2015-08 | 809 MB | |
TAGGED_CO
|
README | $ROOT/TAGGED_CO/v2017-04 | 79 MB | |
TAGGED O3
|
README | $ROOT/TAGGED_O3/v2014-09 | 374 MB |
Submitting new data for use with HEMCO
If you have a new emissions inventory or other atmospheric data set that you would like to add to the HEMCO data directories, then please contact the GEOS-Chem Support Team. Data files must be in COARDS-compliant or CF-compliant netCDF format. Please see the following pages for more information:
--Bob Yantosca (talk) 22:24, 14 January 2020 (UTC)