---
computing_environment: ~
data_usage: ~
display_name: 134d344e-indicator-frost-free-season-process
duration: ~
end_time: ~
href: http://52.38.26.42:8080/activity/134d344e-indicator-frost-free-season-process.yaml
identifier: 134d344e-indicator-frost-free-season-process
methodologies: []
methodology: "Satellite microwave sensors are used to determine the predominant frozen or thawed status of water on the land surface at a given time. Spatial measurements are taken over the contiguous United States and Alaska and include all vegetated land areas where seasonal frozen temperatures are a major constraint to growth. Non-frozen season data are converted to degrees F and aggregated. Anomalies are shown relative to the 1979-2010 average. \r\n\r\nThe data used are from January 1, 1979 to December 31, 2010.\r\n\r\nData was accessed on September 17, 2014."
notes: ~
output_artifacts: ~
publication_maps:
  - activity_identifier: 134d344e-indicator-frost-free-season-process
    child: 19165
    child_uri: /publication/19165
    display_name: 19165/prov:wasDerivedFrom/19166
    note: ''
    parent: 19166
    parent_uri: /publication/19166
    relationship: prov:wasDerivedFrom
    type: publication_map
software: ~
start_time: ~
type: activity
uri: /activity/134d344e-indicator-frost-free-season-process
visualization_software: ~