About

This visualization system maps food flows between counties in the United States. Total food flows are provided in units of mass [kg] for the year 2012. Food flows are unique to each county, so the list of partner counties and the color scale changes with each county selection.

Note that there are three categories of relationships that can exist between counties:

Food outflows only
Food outflow only indicates that the selected county only sends food to the highlighted counties.
Food inflows only
Food inflow only indicates that the selected county only receives food from the highlighted counties.
Both inflows and outflows
Both food inflows and outflows indicate that the selected county receives and sends food to the highlighted counties.

Note that the list of partner counties and the color scale changes with each county selection.

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Glossary

FIPS code
Numeric identifier for each county in the United States
Food outflow
Food being sent out of a county
Food inflow
Food coming into a county
Food net flow
Food inflow - Food outflow
Units
mass [kg]
Year
2012

Food Categories

The following is a list of Standard Classification of Transported Goods (SCTG) food categories included in this study.

SCTG Model
1 Animals and fish (live)
2 Cereal grains (includes seed)
3 Agricultural products (excludes animal feed, cereal grains, and forage products)
4 Animal feed, eggs, honey, and other products of animal origin
5 Meat, poultry, fish, seafood, and their preparations
6 Milled grain products and preparations, and bakery products
7 Other prepared foodstuffs, fats and oils

Methods

This information is generated by the Food Flow Model, a data-driven methodology to estimate spatially explicit food flows. The Food Flow Model integrates machine learning, network properties, production and consumption statistics, mass balance constraints, and linear programming. A full description of the methods used to generate county-to-county food flows in the United States is provided in the accompanying academic journal article (Lin et al, 2019).

Citation

Lin, X., P.J. Ruess, L. Marston, and M. Konar (2019) Food flows between counties in the United States, Environmental Research Letters, Vol 14, Issue 3, pp. 084011, doi: 10.1088/1748-9326/ab29ae

View the published paper arrow_forward

get_app Download source data (CSV)

Funding

This material is based upon work supported by the following National Science Foundation Grants:

ACI-1639529
(INFEWS/T1: Mesoscale Data Fusion to Map and Model the U.S. Food, Energy, and Water (FEW) System)
CBET-1844773
(CAREER: A National Strategy for a Resilient Food Supply Chain)
BCS-2032065
(RAPID: Spatial Resilience of Food Production, Supply Chains, and Security to COVID-19)

Contact information

Megan Konar

Civil and Environmental Engineering
University of Illinois at Urbana-Champaign
mkonar@illinois.edu

Michael McKelvey

Office for Mathematics, Science, and Technology Education
College of Education
University of Illinois at Urbana-Champaign
mmckelve@illinois.edu

Twitter

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