Daily Accumulated Temperature Maps and Short-Term Forecasts to Support Research, Management, and Planning Needs.

Accumulated temperature is a reliable predictor of plant and animal activity and can be a useful metric for timing planting, harvesting, invasive plant or pest treatment, and anticipating events like insect hatch or emergence. Leveraging continental-scale, gridded daily temperature data maps produced by NOAA National Centers for Prediction, the USA National Phenology Network (USA-NPN, www.usanpn.org) is generating maps of accumulated growing degree days (AGDD) using a Jan 1 start date and base temperatures of 32◦F (0◦C) and 50◦F (10◦C). These maps are offered at fine spatial resolution (2.5km) and for every day from January 1, 2016 through six days into the future, enhancing short-term planning at local scales. These maps, daily AGDD anomaly maps, and long-term average daily AGDD (1981-2010) maps are available through an online visualization tool (www.usanpn.org/data/visualizations), for download as images and raster files (www.usanpn.org/data/phenology_maps), and through OGC compliant web services for use in geospatial analysis. Additionally, a suite of gridded products based on the Extended Spring Indices, models representing the conditions leading up to the start of the spring growing season, are also available.

The USA National Phenology Network exists to collect, store, and share data and information on phenology - the timing of plant and animal life cycle events - to support scientific discovery and management decisions. The USA-NPN serves science and society by providing a wide range of data collection resources and data products, including >7.5M observations of phenology for over 1,000 taxa across the United States. The suite of data products offered by the USA-NPN continues to grow and expand, and is driven by the needs of user communities.

This poster presentation will describe the map products that are currently available, demonstrate some applications, and provide an opportunity for USA-NPN data product developers to discuss potential enhancements that the user community might request.