Dendrometer, Soil, and Weather Observations, Arctic Tree Line, AK and NWT, 2016-2019

This dataset provides in situ measurements of radial tree growth of selected white spruce (Picea glauca) and black spruce (Picea mariana) trees, as well as simultaneous in situ measurements of environmental variables (air temperature, air pressure, relative humidity, soil temperature, volumetric water content, and solar irradiance) at two Arctic treeline sites: one in the Brooks Range of Alaska (AK), USA, and the other near Inuvik, Northwest Territories (NWT), Canada. In AK, 36 trees were monitored from June 7, 2016 to September 13, 2019, and in NWT, 24 trees were monitored from July 5, 2017 to July 25, 2019 with a sampling interval of 5- or 20-minutes for radial tree growth and 5-minutes for all environmental variables. The dendrometer data included in this dataset are only those gathered from 2016-2017. Dendrometer data from 2018-2019 are available from a related dataset. The data were collected to better understand the influence of environmental variables on radial tree growth dynamics. The data are provided in comma-separated values (CSV) format.

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated September 22, 2026, 21:15 (UTC)
Created April 1, 2025, 15:24 (UTC)
accessLevel public
bureauCode {026:00}
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
harvest_object_id c8eca0a6-6bfa-4882-9289-398aa3de6249
harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.3334/ORNLDAAC/2185
license https://www.usa.gov/government-works
modified 2026-09-14T22:16:02Z
programCode {026:000}
publisher ORNL_DAAC
resource-type Dataset
source_datajson_identifier true
source_hash c68ef8622f58e92343874e6af293b0c5692e307138aef236f956536f79302c95
source_schema_version 1.1
spatial ["CARTESIAN", [{"WestBoundingCoordinate": -149.761, "NorthBoundingCoordinate": 68.7274, "EastBoundingCoordinate": -133.531, "SouthBoundingCoordinate": 67.9724}]]
temporal 2016-06-07/2019-09-13
theme {"Earth Science"}