CALM
Workshops
CALM’s
priorities and protocols are developed through consensus among program
participants. The primary vehicles used in this process are meetings at
conferences, and especially through periodic workshops.
The
first CALM Workshop, sponsored by the U.S. National Science Foundation’s Arctic System Science
Program, was held in November 2002 at the University of Delaware’s Virden
Center in Lewes. The Workshop brought together 33 participants from six
countries for intensive work of discussions, presentations, data exchange, and
planning. A series of extended abstracts resulting from the workshop appears in
a supplementary volume of the Proceedings of the Eighth International
Conference on Permafrost (Haeberli and Brandova et al, 2003). Two collections of papers with
origins in the workshop have been published (Nelson, 2004a, b).
The
workshop in Delaware provided an opportunity to discuss sampling protocols, instrumentation, and
analytic methods. Consensus was reached on several important issues. These were
communicated as The CALM Workshop Resolution (Nelson et al., 2003b), which
contains the following recommendations:
•
Continue CALM observations and improve the thematic representativeness of the
network;
•
To improve linkages with other networks and international programs, such as
WCRP (CliC), IGBP, and the Circumarctic
Environmental Observatories Network (CEON);
•
To better understand active-layer dynamics through observation of borehole
temperatures, subsidence, snow cover, soil properties, topography, and vegetation;
•
To ensure continued operation, maintenance, and enhancement of CALM and
borehole temperature databases (GTN-P) and websites;
•
To provide input for improvement of permafrost-climate model development, model
result comparison, and verification;
•
To develop strategies for remote sensing-based methods of monitoring geocryological parameters over extensive areas, consistent
with international multi-scale observation schemes.
The
second CALM workshop was convened at the University of Alaska-Fairbanks in June
2008, in conjunction with the Ninth International Conference on Permafrost.
Forty-five participants from nine countries attended the workshop, which
focused on monitoring, experimental activities, and data management for the
sites for which workshop participants are responsible. The workshop resulted in
The Second CALM Workshop Resolution, consisting of the following
recommendations:
•
To continue CALM observations at representative cold-regions sites and continue
network expansion with strategic emphasis on placement along environmental
gradients and co-location with sites in TSP borehole network;
•
To expand the range of environmental parameters measured at CALM sites, which
are concerned with active layer dynamics
(not just active-layer thickness).
•
Create a well integrated, pole-to-pole CALM network. Incorporate the existing
CALM-S network into the larger CALM structure, and integrate management of CALM
networks and observation programs in the Northern (CALM-N) and Southern
(CALM-S) hemispheres;
•
To adapt and expand the CALM protocol to accommodate needs in specific
environments;
•
Pursue spatial integration and scaling with the end goal of creating detailed and
accurate representations of ALT and related parameters at circumpolar scale.
• Improve linkages with other networks
and international program, such as CliC, AON, SAON,
and CEON;
•
Develop
detailed site descriptions and metadata for all sites in the CALM network,
including cryolithological and cryostratigraphic
characterization;
•
Develop and execute critical field experiments designed to enhance the accuracy
and amount of information derived from CALM sites;
•
Extend measurements of vertical movement (heave and subsidence) to all CALM
sites with ice-rich substrates.
•
Continue development and refinement of data management and archiving activities
and strategies.
The Third CALM Workshop
is scheduled for June 2016 in Potsdam, Germany, in conjunction with the IPA
International Conference on Permafrost.
Literature
Cited
Haeberli W, Brandová
D (eds, 2003.) Eights
International Conference on Permafrost: Extended Abstracts on Current Research
and Newly Available Information. Glaciology and Geomorphodynamics
Group, Geography Department, University of Zurich: Zurich, Switzerland.
Nelson,
F.E., (ed., 2004a). Special Issue: Circumpolar Active Layer Monitoring (CALM)
Workshop. Permafrost and Periglacial Processes 15(2): 99-188.
Nelson, F.E. (ed., 2004b). Eurasian Contributions to the Circumpolar Active Layer Monitoring
(CALM) Workshop. Polar Geography 28(4): 253-340.