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Open-File Report 2010–1272

Eastern Geographic Science Center

Shenandoah National Park Phenology Project—Weather Data Collection, Description, and Processing

By John W. Jones, Danielle P. Aiello, and Jesse D. Osborne


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The weather data described in this document are being collected as part of a U.S. Geological Survey (USGS) study of changes in Shenandoah National Park (SNP) landscape phenology (Jones and Osbourne, 2008). Phenology is the study of the timing of biological events, such as annual plant flowering and seasonal bird migration. These events are partially driven by changes in temperature and precipitation; therefore, phenology studies how these events may reflect changes in climate. Landscape phenology is the study of changes in biological events over broad areas and assemblages of vegetation. To study climate-change relations over broad areas (at landscape scale), the timing and amount of annual tree leaf emergence, maximum foliage, and leaf fall for forested areas are of interest. To better link vegetation changes with climate, weather data are necessary. This report documents weather-station data collection and processing procedures used in the Shenandoah National Park Phenology Project.

First posted January 31, 2011

For additional information contact:
Director, Eastern Geographic Science Center
U.S. Geological Survey
521 National Center
Reston, Virginia 20192

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Suggested citation:

Jones, J. W., Aiello, D. P., Osborne, J. D., 2010, Shenandoah National Park Phenology Project—Weather data collection, description, and processing: U.S. Geological Survey Open-File Report 2010–1272, 17 p. (Available at




Overview of Available Data and Processing Steps

Data Processing

Time Series Inconsistencies in the Weather Station Data

Data Analysis Processing Stream

Adding New Weather Station Data to Existing Data

File Naming Conventions




Appendix 1. Detailed flowchart of data processing steps.

Appendix 2. Macros used in processing data for the Shenandoah National Park Phenology Project.First-Order Heading (Heading 1)

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