Filters: Contacts: USA National Phenology Network (X) > partyWithName: Ecosystems (X) > partyWithName: Lee Marsh (X)

Filters Date Range Past year (0) Past month (0) Past week (0) Past day (0) Custom range... To   Search Types Citation (1) Map Service (1) OGC WFS Layer (1) OGC WMS Layer (1) OGC WMS Service (1) Contacts USA National Phenology Network National Phenology Network Tag Types Theme (1) Harvest Set (1) Tag Schemes USGS Thesaurus (1) View Results as: JSON ATOM CSV

Accumulated Growing Degree Days, Contiguous United States, 1981 - 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. 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. Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: USGS Science Data Catalog (SDC), air temperature, atmospheric and climatic processes, phenology