Ag Data Commons
LCA Digital Commons Unit Process Data- agricultural self-propelled equipment March 2014.pdf (3.17 MB)

Unit process data for agricultural self-propelled equipment version 1

Download (3.17 MB)
posted on 2024-02-08, 19:55 authored by Joyce Cooper, Michael Noon, Ezra Kahn, Ryan Johnson

This document describes the preparation of datasets for the LCA Digital Commons that represent unit process/ gate-to-gate operations for the production of work (in MJ) by agricultural self-propelled equipment and fleets of agricultural self-propelled equipment. The data cover 19 types of fleets and over 200 types of self-propelled equipment datasets, representing the potential to prepare thousands of unit-process datasets by varying the operating and model years, applicable power ranges, and operating temperatures.

The key information source used for datasets development is the documentation and supporting data developed for the US Environmental Protection Agency (USEPA) NONROAD2008a model. In addition to the data and mathematical relationships described in the NONROAD documentation, data from a range of sources are used to add lubricant use and management estimates; add equipment production and storage, spare parts production, and equipment retirement estimates; estimate specific air emissions and groupings of air emissions; and add variability and uncertainty estimates.

Equipment operation models are aggregated to the state level based on typical operating temperatures in each state.

Resources in this dataset:

  • Resource Title: LCA Digital Commons Unit Process Data- agricultural self-propelled equipment March 2014.

    File Name: LCA Digital Commons Unit Process Data- agricultural self-propelled equipment March 2014.pdf


USDA-ARS: 58-8201-0-149


Data contact name

Cooper, Joyce

Data contact email


Ag Data Commons

Intended use

These models were developed as specific, average or generic unit process or LCI results data sets for use in “Accounting” situations (C2) as described in European Commission - Joint Research Centre - Institute for Environment and Sustainability: International Reference Life Cycle Data System (ILCD) Handbook - General guide for Life Cycle Assessment - Detailed guidance. First edition March 2010. EUR 24708 EN. Luxembourg. Publications Office of the European Union; 2010.

Use limitations

These unit process models are aggregated to the state level. They may be aggregated regionally or nationally with proper documentation of the aggregation method.

Temporal Extent Start Date


Temporal Extent End Date



  • irregular


  • Not specified

ISO Topic Category

  • environment
  • farming

Ag Data Commons Group

  • Life Cycle Assessment

National Agricultural Library Thesaurus terms

LCA; LCI; life cycle assessment; life cycle inventory; unit process

Pending citation

  • No

Public Access Level

  • Public

Preferred dataset citation

Cooper et. al. (2014) “Unit process data for agricultural self-propelled equipment, Version 1” University of Washington Design for Environment Laboratory. Unpublished report.

Usage metrics


    Ref. manager