{"id":228,"data_access":"https://data.gtn-p.org/api/data?alt_data=228&combined=false","description":null,"policy":"Open","quality":"Quality Controlled Data","medium":"Soil","created":"2024-08-26T10:04:25.707594","modified":"2026-06-25T12:58:04.782667","variable":"Active Layer Thickness (grid/transect)","unit":{"name":"Centimeter","abbreviation":"cm"},"method":{"name":"Mechanical Probing","description":"Measurements by gradual metal rod collected manually"},"datatype":"Sporadic","frequency":"As Needed","activelayer_id":30,"statistics":{"date_start":"1998-08-20T00:00:00","date_end":"2008-08-21T00:00:00","min_value":21.5,"max_value":102.0,"avg_value":56.12640871525169,"data_points":1331,"null_values":0,"min_offset_x":0.0,"max_offset_x":100.0,"offset_x_count":11,"min_offset_y":0.0,"max_offset_y":100.0,"offset_y_count":11,"day_count":11}}