Skip to main content
ORNL DAAC HomeNASA Home

DAAC Home > Get Data > NASA Projects > Arctic-Boreal Vulnerability Experiment (ABoVE) > User guide

ABoVE: End of Season Snow Depth at CRREL sites near Fairbanks, Alaska, 2014-2019

Documentation Revision Date: 2019-07-19

Dataset Version: 1

Summary

This dataset provides 20,582 snow depth measurements collected at six sites near Fairbanks, Alaska, USA. Measurements were made during March or April from 2014-2019. The sites were located at or near Goldstream, Creamer's Field, APEX, the Permafrost Tunnel and Farmer's Loop. The US Army Corps of Engineers, Cold Regions Research and Engineering Laboratory (CRREL) owns and operates facilities at the Permafrost Tunnel and Farmer's Loop. The sites are suitable for manipulation experiments, installing permanent equipment, and establishing long-term measurements.

For the past five years, through a variety of projects and collaborations, research infrastructure has been developed at a variety of sites around Fairbanks, Alaska. Investment will continue in these sites over the next ten years. The sites are road accessible and represent a variety of ecotype and terrain types common in the boreal biome of interior Alaska.

There is one data file in comma-separated (.csv) format with this dataset. The measurement locations are provided as two companion files, one in shapefile (.shp) format and one in.kmz format for viewing in Google Earth. 

Figure 1. Locations of the Creamer's Field, Farmer's Loop, and Permafrost Tunnel transect sites (photo from Bjella et al., 2015).

Citation

Douglas, T.A., C.A. Hiemstra, and A.J. Barker. 2019. ABoVE: End of Season Snow Depth at CRREL sites near Fairbanks, Alaska, 2014-2019. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1702

Table of Contents

  1. Dataset Overview
  2. Data Characteristics
  3. Application and Derivation
  4. Quality Assessment
  5. Data Acquisition, Materials, and Methods
  6. Data Access
  7. References

Dataset Overview

This dataset provides 20,582 snow depth measurements collected at six sites near Fairbanks, Alaska, USA. Measurements were made during March or April from 2014-2019. The sites were located at or near Goldstream, Creamer's Field, APEX, the Permafrost Tunnel and Farmer's Loop. The US Army Corps of Engineers, Cold Regions Research and Engineering Laboratory (CRREL) owns and operates facilities at the Permafrost Tunnel and Farmer's Loop. The sites are suitable for manipulation experiments, installing permanent equipment, and establishing long-term measurements.

For the past five years, through a variety of projects and collaborations, research infrastructure has been developed at a variety of sites around Fairbanks, Alaska. Investment will continue in these sites over the next ten years. The sites are road accessible and represent a variety of ecotype and terrain types common in the boreal biome of interior Alaska.

Project: Arctic-Boreal Vulnerability Experiment

The Arctic-Boreal Vulnerability Experiment (ABoVE) is a NASA Terrestrial Ecology Program field campaign based in Alaska and western Canada between 2016 and 2021. Research for ABoVE links field-based, process-level studies with geospatial data products derived from airborne and satellite sensors, providing a foundation for improving the analysis and modeling capabilities needed to understand and predict ecosystem responses and societal implications.

Related Dataset:

Douglas, T.A. 2019. ABoVE: Soil Active Layer Thaw Depths at CRREL sites near Fairbanks, Alaska, 2014-2018. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1701

 

Data Characteristics

Spatial Coverage: Six sites near Fairbanks, Alaska

ABoVE Reference Locations

Domain: Core ABoVE

Grid cells: Ah1Av0.Bh6Bv5.Ch40Cv32; Ah1Av0.Bh6Bv5.Ch39Cv32

Spatial Resolution: Multiple points, measurements every 1 to 5 m along transects

Temporal Coverage: 2014-04-14 to 2019-03-07

Temporal Resolution: In 2014, the measurements were made in April. For 2015-2019, the measurements were made in March.

Study Area: All latitudes and longitudes given in decimal degrees

Site (Region)

Westernmost Longitude

Easternmost Longitude

Northernmost Latitude

Southernmost Latitude

Fairbanks, AK

-148.3323613

-147.611354

64.9591171

64.6938223

 

Data File Information

There is one data file in comma-separated format (.csv) and two companion files with this dataset. Not all transects were measured each year. See Section 5.

Table 1. File names and descriptions

File name

Description

end_season_snow_depth_six_sites_near_fairbanks.csv

This data file  provides 20,582 snow depth measurements made at six transects located near Fairbanks, Alaska during the period 2014 to 2019. Note the Coordinate Reference System:  EPSG 26906

     Companion Files  

end_of_season_snow_depth_all_sites.zip

Companion file with the measurement locations in shapefile format (shp), provided as a compressed (.zip) file

end_of_season_snow_depth_all_sites.kmz

Companion file with the measurement locations in .kmz format for viewing in Google Earth

 

Table 2. Variables in the data file end_season_snow_depth_six_sites_near_fairbanks.csv

Column

Units

Description

date

yyyy-mm-dd

Approximate date of the measurement

site

 

Transect site

northing

m

Northing location of measurement, NAD83 / UTM zone 6N

easting

m

Easting location of measurement, NAD83 / UTM zone 6N

latitude

decimal degrees

Latitude of measurement location

longitude

decimal degrees

Longitude of measurement location

snow_depth

cm

Snow depth

Application and Derivation

The goal of collecting the snow depth measurements is to accumulate a long-term record of snow depth in the area.

Quality Assessment

None provided.

Data Acquisition, Materials, and Methods

Snow depth was measured at six transects near Fairbanks, Alaska: APEX Transects 1 and 2, Creamer’s Field (a migratory waterfowl refuge owned by the state of Alaska), Farmer’s Loop, the Permafrost Tunnel (CRREL owns and operates facilities at the Permafrost Tunnel and Farmer’s Loop), and Goldstream. The transects are 400 to 500-m long. Sites are road accessible and represent a variety of ecotype and terrain types which vary along the transects and site to site.

vegetation

Figure 2. Vegetation along the Farmer’s Loop transects. The top photo is at 40 m along the transect, the bottom photo shows vegetation at 200 m (photo from Bjella et al., 2015).

Measurements were made along each transect every 1-5m using a Magnaprobe (Snow-Hydro, Fairbanks, Alaska) and a Trimble GPS.

Not all transects were measured each year.

In 2014, measurements were made at the Creamer’s Field, Farmer’s Loop, and Permafrost Tunnel transects.

In 2015, measurements were made at all transects except Goldstream.

In 2016, 2017, and 2018, measurements were made at each of the six transects.

In 2019, measurements were made at the Permafrost Tunnel and Farmers Loop transects.

Data Access

These data are available through the Oak Ridge National Laboratory (ORNL) Distributed Active Archive Center (DAAC).

ABoVE: End of Season Snow Depth at CRREL sites near Fairbanks, Alaska, 2014-2019

Contact for Data Center Access Information:

References

Bjella, K., S. Arcone, and T. Douglas. Imaging of Ground Ice with Surface-Based Geophysics Cold Regions Research and Engineering Laboratory. 2015. Technical Report. ERDC/CRREL TR-15-14. Available at https://erdc-library.erdc.dren.mil/xmlui/bitstream/handle/11681/5504/ERDC-CRREL-TR-15-14.pdf