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Description

This dataset provides soil thaw depth and moisture (STDM) measurements and dielectric properties measured by different research teams at sites in Alaska, U.S., and the Northwest Territories, Canada. There are multiple observations per site and 352,719 total observations. The dataset includes 206,000 observations of active layer thickness measured by mechanical probing (6.0%) or ground penetrating radar (GPR) (94.0%). Approximately 16,000 volumetric water content measurements were collected using GPR (22.1%), Hydrosense I and II probes (75.3%), and DualEM (2.6%). Metadata includes the location, time, geospatial coordinates, technique, measurement teams. Measurements were typically collected in August and September near the end of the thaw season and cover the period 2008-06-22 to 2020-08-15.

Product Summary

Platforms
FIELD SURVEYS
Instruments
PROBES ,
GPR ,
TDR
Projects
ABoVE
Spatial Extent

N: 71.3236 S: 60.4524 E: -111.368 W: -165.973

Location
ALASKA ,
NORTHWEST TERRITORIES
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
2008-06-22 to 2020-08-15
Data Partner
THE OAK RIDGE NATIONAL LABORATORY (ORNL) DISTRIBUTED ACTIVE ARCHIVE CENTER (DAAC) (ORNL_DAAC)
Concept ID
C2162189255-ORNL_CLOUD
Data State
COMPLETE
Number of Files/Granules
1
Processing Level
3
Published
Updated
Science Keywords
Soil Depth ,
Active Layer ,
Soil Moisture/Water Content

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

Schaefer, K., Clayton, L. K., Battaglia, M. J., Bourgeau-Chavez, L. L., Chen, R. H., Chen, A. C., Chen, J., Bakian-Dogaheh, K., Douglas, T. A., Grelick, S. E., Iwahana, G., Jafarov, E., Liu, L., Ludwig, S., Michaelides, R. J., Moghaddam, M., Natali, S., Panda, S. K., Parsekian, A. D., … Zhao, Y. (2021). ABoVE: Soil Moisture and Active Layer Thickness in Alaska and NWT, Canada, 2008-2020 (Version 1). ORNL Distributed Active Archive Center. https://doi.org/10.3334/ORNLDAAC/1903 Date Accessed: 2026-10-03

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Publications Citing This Dataset

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Title Authors Year Referenced Datasets
Assessing spatial heterogeneity of active layer thickness over Arctic-foothills tundra, North Slope Alaska
  • Du, Jinyang, Endsley, K. Arthur, Bakian Dogaheh, Kazem, Kimball, John S., Moghaddam, Mahta, Douglas, Thomas A., Melebari, Asem, Eskandari, Sepehr, Kim, Jinhyuk E., Whitcomb, Jane, Zhao, Yuhuan, Henze, Sophia
Detecting and Mapping Permafrost: Preliminary Data from a Novel Frequency Domain Electromagnetic Induction Device
  • Maxson, Michele, Barrowes, Benjamin, Lozano, David, Prishvin, Mikheil, Shubitidze, Fridon
A Novel Lightweight Electromagnetic Induction Sensor for Permafrost Detection and Mapping
  • Maxson, Michele L., Barrowes, Benjamin, Lozano, David, Sullivan, Taylor, Prishvin, Mikheil, Shubitidze, Fridon
Tundra recovery post-fire in the YukonKuskokwim Delta, Alaska
  • Clayton, Leah K, Schaefer, Kevin, Hoy, Elizabeth E, Elder, Clayton D, French, Nancy H F, Frost, Gerald V, Wig, Elizabeth, Lee, Xuhui
A synthesized field survey database of vegetation and active-layer properties for the Alaskan tundra (19722020)
  • Zhu, Xiaoran, Chen, Dong, Kogure, Maruko, Hoy, Elizabeth, Berner, Logan T., Breen, Amy L., Chatterjee, Abhishek, Davidson, Scott J., Frost, Gerald V., Hollingsworth, Teresa N., Iwahana, Go, Jandt, Randi R., Kade, Anja N., Loboda, Tatiana V., Macander, Matt J., Mack, Michelle, Miller, Charles E., Miller, Eric A., Natali, Susan M., Raynolds, Martha K., Rocha, Adrian V., Tsuyuzaki, Shiro, Tweedie, Craig E., Walker, Donald A., Williams, Mathew, Xu, Xin, Zhang, Yingtong, French, Nancy, Goetz, Scott
The ABoVE L-band and P-band airborne synthetic aperture radar surveys
  • Miller, Charles E., Griffith, Peter C., Hoy, Elizabeth, Pinto, Naiara S., Lou, Yunling, Hensley, Scott, Chapman, Bruce D., Baltzer, Jennifer, Bakian-Dogaheh, Kazem, Bolton, W. Robert, Bourgeau-Chavez, Laura, Chen, Richard H., Choe, Byung-Hun, Clayton, Leah K., Douglas, Thomas A., French, Nancy, Holloway, Jean E., Hong, Gang, Huang, Lingcao, Iwahana, Go, Jenkins, Liza, Kimball, John S., Loboda, Tatiana, Mack, Michelle, Marsh, Philip, Michaelides, Roger J., Moghaddam, Mahta, Parsekian, Andrew, Schaefer, Kevin, Siqueira, Paul R., Singh, Debjani, Tabatabaeenejad, Alireza, Turetsky, Merritt, Touzi, Ridha, Wig, Elizabeth, Wilson, Cathy J., Wilson, Paul, Wullschleger, Stan D., Yi, Yonghong, Zebker, Howard A., Zhang, Yu, Zhao, Yuhuan, Goetz, Scott J.
Unraveling the non-linear relationship between seasonal deformation and permafrost active layer thickness
  • Chang, Tian, Yi, Yonghong, Jiang, Huiru, Li, Rongxing, Lu, Ping, Liu, Lin, Wang, Lingxiao, Zhao, Lin, Zwieback, Simon, Zhao, Jingyi
Outdoor Radon Dose Rate in Canada's Arctic amid Climate Change
  • Liu, Chuanlei, Chen, Jing, Zhang, Weihua, Ungar, Kurt
Polarimetric L-Band ALOS2-PALSAR2 for Discontinuous Permafrost Mapping
  • Touzi, Ridha, Pawley, Steven M., Wilson, Paul, Jiao, Xianfeng, Hosseini, Mehdi, Shimada, Masanobu
Permafrost Dynamics Observatory (PDO)Part II: Joint Retrieval of Permafrost Active Layer Thickness and Soil Moisture from Lband InSAR and Pband PolSAR
  • Chen, Richard H., Michaelides, Roger J., Zhao, Yuhuan, Huang, Lingcao, Wig, Elizabeth, Sullivan, Taylor D., Parsekian, Andrew D., Zebker, Howard A., Moghaddam, Mahta, Schaefer, Kevin M.
Sensitivity of Multi-frequency Polarimetric SAR Data to Post-Fire Permafrost Changes and Recovery Processes in Arctic Tundra
  • Yi, Yonghong, Chen, Richard H., Moghaddam, Mahta, Kimball, John S., Jones, Benjamin M., Jandt, Randi R., Miller, Eric A., Miller, Charles E.
Validation of Permafrost Active Layer Estimates from Airborne SAR Observations
  • Parsekian, Andrew D., Chen, Richard H., Michaelides, Roger J., Sullivan, Taylor D., Clayton, Leah K., Huang, Lingcao, Zhao, Yuhuan, Wig, Elizabeth, Moghaddam, Mahta, Zebker, Howard, Schaefer, Kevin
Active layer thickness as a function of soil water content
  • Clayton, Leah K, Schaefer, Kevin, Battaglia, Michael J, Bourgeau-Chavez, Laura, Chen, Jingyi, Chen, Richard H, Chen, Albert, Bakian-Dogaheh, Kazem, Grelik, Sarah, Jafarov, Elchin, Liu, Lin, Michaelides, Roger John, Moghaddam, Mahta, Parsekian, Andrew D, Rocha, Adrian V, Schaefer, Sean R, Sullivan, Taylor, Tabatabaeenejad, Alireza, Wang, Kang, Wilson, Cathy J, Zebker, Howard A, Zhang, Tingjun, Zhao, Yuhuan
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