USA National Phenology Network observational data documentation

Open-File Report 2018-1060
By: , and 



The goals of the USA National Phenology Network (USA-NPN, are to advance science, inform decisions, and communicate and connect with the public regarding phenology and species’ responses to environmental variation and climate change. The USA-NPN seeks to advance the science of phenology and facilitate ecosystem stewardship by providing phenological information freely and openly. To accomplish these goals, the USA-NPN National Coordinating Office (NCO) delivers observational data on plant and animal phenology in several formats, including minimally processed status and intensity datasets and derived phenometrics for individual plants, sites, and regions. This document describes the suite of observational data products delivered by the USA National Phenology Network, covering the period 2009–present for the United States and accessible via the Phenology Observation Portal ( and via an Application Programming Interface. The data described here have been used in diverse research and management applications, including over 30 publications in fields such as remote sensing, plant evolution, and resource management.

Suggested Citation

Rosemartin, A., Denny, E.G., Gerst, K.L., Marsh, R.L., Posthumus, E.E., Crimmins, T.M., and Weltzin, J.F., 2018, USA National Phenology Network observational data documentation: U.S. Geological Survey Open-File Report 2018–1060, 24 p.,

ISSN: 2331-1258 (online)

Table of Contents

  • Acknowledgements
  • Abstract
  • Introduction
  • Data Collection Protocols
  • Data Discovery, Access, Quality and Documentation
  • Data Types
  • Status and Intensity Data
  • Individual Phenometrics
  • Site Phenometrics
  • Magnitude Phenometrics
  • Applications
  • References Cited
  • Appendix 1: Datafield Definition Tables
  • Appendix 2: Quality Assurance and Quality Control Measures

Additional publication details

Publication type Report
Publication Subtype USGS Numbered Series
Title USA National Phenology Network observational data documentation
Series title Open-File Report
Series number 2018-1060
DOI 10.3133/ofr20181060
Year Published 2018
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Contributing office(s) National Phenology Network
Description Report: vi, 24 p.; Appendix tables
Online Only (Y/N) Y
Additional Online Files (Y/N) Y
Google Analytic Metrics Metrics page
Additional metadata about this publication, not found in other parts of the page is in this table