Accumulated Growing Degree Days, Continental United States, 2016 - Current Year

The USA National Phenology Network has available a series of gridded products enabling researchers to analyze daily Accumulated Growing Degree Days (AGDD) from 2016 through the current year, and compare these values to long term averages using the 1991-2020 climate normal period. Heat accumulation is commonly used as a way of predicting the timing of phenological transitions in plants and animals. Products generated by the USA-NPN begin accumulation on January 1 and use either a 32F or 50F base temperature.The data are accessible via the USA-NPN Visualization Tool (https://www.usanpn.org/data/visualizations) and the USA-NPN Geoserver (user access facilitated by the Geoserver Request Builder: https://www.usanpn.org/geoserver-request-builder).For all inquiries regarding this dataset, please contact the USA-NPN. This data is subject to the USA-NPN's Data Use Policy.

美国国家物候网络提供了一系列网格化产品，使研究者能够分析从2016年至今的每日累积生长度日（AGDD），并利用1991-2020年的气候正常期与长期平均值进行比较。热积累通常被用作预测植物和动物物候转变时间的手段。美国国家物候网络（USA-NPN）生成的产品从1月1日开始累积，并采用32华氏度或50华氏度的基准温度。数据可通过美国国家物候网络可视化工具（https://www.usanpn.org/data/visualizations）和美国国家物候网络地理服务器（通过地理服务器请求构建器提供的用户访问：https://www.usanpn.org/geoserver-request-builder）获取。有关此数据集的所有查询，请与美国国家物候网络联系。此数据受美国国家物候网络数据使用政策的约束。