https://cdn.earthdata.nasa.gov/conduit/upload/5182/KeywordsCommunityGuide_Baseline_v1_SIGNED_FINAL.pdf 23.7 2026-04-15T10:53:30.610Z https://gcmd.earthdata.nasa.gov/KeywordViewer/scheme/sciencekeywords/84510f18-a4e6-434c-a54c-44cc995e1af2 TREE RINGS Date=2024-10-24 User Id=tstevens Entity=WeightedRelation Operation=INSERT System Note=insert WeightedRelation New Value=id: null related concept uuid: 6444fc67-8cad-41c0-9ded-e93f604ba8b0 relationship type: null relationship value: null generated by: null Date=2024-10-24 User Id=tstevens Entity=WeightedRelation Operation=INSERT System Note=insert WeightedRelation New Value=id: null related concept uuid: 0e06e528-e796-4b7c-9878-dbcb061d878d relationship type: null relationship value: null generated by: null Date=2020-05-07 User Id=tstevens Entity=NarrowerRelation Operation=INSERT User Note=Insert Concept System Note=add narrower relation New Value=TREE RINGS [84510f18-a4e6-434c-a54c-44cc995e1af2,83417] - SEA SALT [902e9bf8-85d4-431b-aa15-e0d7abe0f17c,560041] Date=2024-10-24 User Id=tstevens Entity=Definition Operation=UPDATE Field=text System Note=update Definition Old Value=Pertaining to the measurement and analysis of ancient tree rings to determine environmental conditions during that tree's lifetime and extrapolate that to climatic conditions. The study of tree rings related to past climate conditions is called dendroclimatology. Variations in tree ring widths from year to year are recognized as an important source of chronological and climatic information. The width of a tree ring is a function of many variables including tree species, age, availability of stored food within the tree, soil nutrients, and climatic factors such as precipitation, sunshine temperature, winds and humidity. New Value=Pertaining to the measurement and analysis of ancient tree rings to determine environmental conditions during that tree's lifetime and extrapolate that to climatic conditions. The study of tree rings related to past climate conditions is called dendroclimatology. Variations in tree ring widths from year to year are recognized as an important source of chronological and climatic information. The width of a tree ring is a function of many variables including tree species, age, availability of stored food within the tree, soil nutrients, and climatic factors such as precipitation, sunshine temperature, winds and humidity. Pertaining to the measurement and analysis of ancient tree rings todetermine environmental conditions during that tree's lifetime andextrapolate that to climatic conditions. The study of tree rings related topast climate conditions is called dendroclimatology. Variations in tree ringwidths from year to year are recognized as an important source of chronologicaland climatic information. The width of a tree ring is a function of manyvariables including tree species, age, availability of stored food within thetree, soil nutrients, and climatic factors such as precipitation, sunshinetemperature, winds and humidity. 2024-10-24 10:00:33.0