The DOI matches its Crossref record; 33 of the 33 references it cites were found in a registry or an index.
The circumpolar active layer monitoring (calm) program: Research designs and initial results
Abstract
The Circumpolar Active Layer Monitoring (CALM) program, designed to observe the response of the active layer and near‐surface permafrost to climate change, currently incorporates more than 100 sites involving 15 investigating countries in both hemispheres. In general, the active layer responds consistently to forcing by air temperature on an interannual basis. The relatively few long‐term data sets available from northern high‐latitude sites demonstrate substantial interannual and interdecadal fluctuations. Increased thaw penetration, thaw subsidence, and development of thermokarst are observed at some sites, indicating degradation of warmer permafrost. During the mid‐ to late‐1990s, sites in Alaska and northwestern Canada experienced maximum thaw depth in 1998 and a minimum in 2000; these values are consistent with the warmest and coolest summers. The CALM network is part of the World Meteorological Organization's (WMO) Global Terrestrial Network for Permafrost (GTN‐P). GTN‐P observations consist of both the active layer measurements and the permafrost thermal state measured in boreholes. The CALM program requires additional multi‐decadal observations. Sites in the Antarctic and elsewhere in the Southern Hemisphere are presently being added to the bipolar network.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
World Reference Base for Soil Resources
Driessen, P., Nachtergaele, F., Spaargaren, O., & Seppe Deckers, J. (2005) · Encyclopedia of Soil Science, Second Edition · doi:10.1201/noe0849338304.ch410 · Cited by 7,248
Increased plant growth in the northern high latitudes from 1981 to 1991
Myneni, R. B., Keeling, C. D., Tucker, C. J., Asrar, G., & Nemani, R. R. (1997) · Nature · doi:10.1038/386698a0 · Cited by 3,442
Observational Evidence of Recent Change in the Northern High-Latitude Environment
Serreze, M. C., Walsh, J. E., Chapin, F. S., Osterkamp, T., Dyurgerov, M., Romanovsky, V., Oechel, W. C., Morison, J., Zhang, T., & Barry, R. G. (2000) · Climatic Change · doi:10.1023/a:1005504031923 · Cited by 1,911
South African Journal of Science
(1921) · African Affairs · doi:10.1093/oxfordjournals.afraf.a100309 · Cited by 1,873
Increasing shrub abundance in the Arctic
Sturm, M., Racine, C., & Tape, K. (2001) · Nature · doi:10.1038/35079180 · Cited by 1,349
Journal of Geophysical Research: Atmospheres
(2018) · Journal of Geophysical Research Atmospheres · doi:10.1002/(issn)2169-8996 · Cited by 914
Journal of Geophysical Research
(1955) · Nature · doi:10.1038/175238c0 · Cited by 775
Permafrost Degradation and Ecological Changes Associated with a WarmingClimate in Central Alaska
Jorgenson, M. T., Racine, C. H., Walters, J. C., & Osterkamp, T. E. (2001) · Climatic Change · doi:10.1023/a:1005667424292 · Cited by 735
Arctic sea ice extents, areas, and trends, 1978–1996
Parkinson, C. L., Cavalieri, D. J., Gloersen, P., Zwally, H. J., & Comiso, J. C. (1999) · Journal of Geophysical Research: Oceans · doi:10.1029/1999jc900082 · Cited by 663
Evidence for warming and thawing of discontinuous permafrost in Alaska
Osterkamp, T. E., & Romanovsky, V. E. (1999) · Permafrost and Periglacial Processes · doi:10.1002/(sici)1099-1530(199901/03)10:1<17::aid-ppp303>3.0.co;2-4 · Cited by 558
Cited by
Hydrologic Impacts of Thawing Permafrost—A Review
Walvoord, M. A., & Kurylyk, B. L. (2016) · Vadose Zone Journal · doi:10.2136/vzj2016.01.0010 · Cited by 1,112
Koven, C. D., Riley, W. J., & Stern, A. (2013) · Journal of Climate · doi:10.1175/jcli-d-12-00228.1 · Cited by 447
LPJmL4 – a dynamic global vegetation model with managed land – Part 1: Model description
(2018) · doi:10.5194/gmd-11-1343-2018 · Cited by 333
The CCSM4 Land Simulation, 1850–2005: Assessment of Surface Climate and New Capabilities
Lawrence, D. M., Oleson, K. W., Flanner, M. G., Fletcher, C. G., Lawrence, P. J., Levis, S., Swenson, S. C., & Bonan, G. B. (2012) · Journal of Climate · doi:10.1175/jcli-d-11-00103.1 · Cited by 309
Simulation of Present-Day and Future Permafrost and Seasonally Frozen Ground Conditions in CCSM4
Lawrence, D. M., Slater, A. G., & Swenson, S. C. (2012) · Journal of Climate · doi:10.1175/jcli-d-11-00334.1 · Cited by 278
Metadata
- Authors
- Brown, J., Hinkel, K. M., & Nelson, F. E.
- Venue
- Polar Geography
- Publisher
- Informa UK Limited
- Published
- 2000-07
- Volume
- 24
- Issue
- 3
- Pages
- 166-258
- ISSN
- 0148-7671 (ISSN-L)
- 1088-937X
- 1939-0513
- OpenAlex
- W2029654989
- Cited by
- 498
- References
- 33
- FWCI
- 3.78
- Type
- journal article
- Language
- en
- Open access
- closed
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: The circumpolar active layer monitoring (calm) program: Research designs and initial results. https://app.cochat.ai/papers/10.1080/10889370009377698
- The paper
- Brown, J., Hinkel, K. M., & Nelson, F. E. (2000). The circumpolar active layer monitoring (calm) program: Research designs and initial results. Polar Geography. https://doi.org/10.1080/10889370009377698
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
