Method
Methods
Model and Tool
Spatial Allocator v4.4 SMOKEv4.7
Emission Inventory
US EPA National Emissions Inventory 2017
Anthropogenic source sectors
6 area sectors, 2 mobile sectors and 1 point source sector
Chemical Mechanisms
CB6r3 with AE7 aerosol mechanism
Downloads
Downloads
NEMO are available in two formats: NetCDF and Shapefile. Both formats have the same emission sectors with 1 km resolution in the Lambert Conformal Conic (LCC) projection. The NetCDF format contains hourly, monthly, and annual data while the Shapefiles only include annual emissions. Additionally, the NetCDF provides the model species for CB6 mechanism in the hourly and monthly data files. The shapefiles include total emissions of VOCs, NOx, PM2.5, SO2, CO, and NH3.
- The datafiles of monthly and annual nonpoint emissions that are available on figshare reservoir: https://doi.org/10.6084/m9.figshare.c.6141735.
The annual emission for airports sector in .shp format is available here. - The annual nonpoint emissions (2017, 2019) in shapefile format are now available.
- The hourly sectoral emissions at census level are available here.
- If you want to download the hourly emission data, please contact us.
Dataset
Air Pollutants
NOx, VOCs, CO, SO2, NH3, PM2.5 and PM10
PM2.5 and PM10 Composition
Data Format
NetCDF, Shapefile (Annual only), ASCII (Census tract)
Inventory Base Year
2017, 2019
Emission Sources (Sectoral & Total)
Anthropogenic fugitive dust (afdust), Agriculture (ag)/Fertilizer&Livestock, Non-point (nonpt), Oil and Gas (np_oilgas), Solvents (np_solvents), Onroad, Nonroad, Rail, Residential wood combustion (rwc) & Airports
Temporal resolution
Annual, Monthly, and Hourly
Spatial resolution
1 km × 1 km
Particulate Matter
PM 2.5
PM 2.5
By Grid
PM 2.5
By Tract
PM 2.5
Exposure Proximity
Nitrogen Oxide
NOx
NOx
By Grid
NOx
By Tract
NOx
Exposure Proximity
Publications
Publications
Publications
Ma, S., Tong, D.Q. Neighborhood Emission Mapping Operation (NEMO): A 1-km anthropogenic emission dataset in the United States. Sci Data 9, 680 (2022). https://doi.org/10.1038/s41597-022-01790-9
Published
09 November 2022
Subjects
Atmospheric chemistry,
Sustainability
Author
Siqi Ma & Daniel Q. Tong
ACKNOWLEDGEMENT
Acknowledgement
Acknowledgement
This work is partially supported by NOAA Climate Program Office and NASA Health and Air Quality Program. We thank the US EPA for providing the base emissions inventories and ancillary files used in this study. The authors are grateful to Bok Haeng Baek, Dongmei Yang, and Charles Chang for insightful discussion and assistance with preparing the data/tools and the website.