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GCW Working Groups and Teams


GCW has a Steering Group and three Working Groups. Each Working Group (WG) has one or more Teams. A brief description of each team is given below. A wiring diagram of this structure is shown on the right (hover over it for a larger version). See the Get Involved page for more information on contributing to GCW. More information on Working Group responsibilities is available in their Terms of Reference.

Group/Team Description (click anywhere in the description to show team members)
Observations WG
The Observations Working Group addresses capabilities and needs for surface-based and satellite observations. It is responsible for the establishment and coordination of operations of the GCW surface-based observational network, including the core network called CryoNet. The group develops a network strategy and procedures for becoming part of the GCW network, evaluates proposed sites, and determines data availability. It develops relevant material to be included in the WMO Technical Regulations and in the WIGOS Manual. To establish CryoNet, it defined the types of sites on land or sea, operating a sustained, standardized programme for observing and monitoring as many cryospheric components and variables as possible. This Group is compiling best practices, guidelines, and standards, facilitates instrument intercomparisons, and promotes interaction and collaboration between the scientific and operational communities. It is conducting an inventory of measurement methods and infrastructure at sites that measure components of the cryosphere. The Observations Working Group assesses user needs, periodically reviews and updates observing system requirements and capabilities, and contributes to the WMO Rolling Review of Requirements database.  »
Co-Chairs*: Wolfgang Schöner (UGraz) and Michele Citterio (GEUS)
Members: Annett Bartsch (ZAMG), Julia Boike (AWI), Gino Casassa (Geoestudios, UMAG), Steve Colwell (BAS), Angel Corona (NOAA), Charles Fierz (WSL/SLF), Christophe Genthon (LGGE), Øystein Godøy (Metno), Eric Holloway (NOAA), Kari Luojus (FMI), Giovanni Macelloni (IFAC–CNR), Andrea Merlone (BIPM), Rainer Prinz (UGraz), Craig Smith (ECCC), Vasily Smolyanitsky (AARI), Þorsteinn Þorsteinsson (IMO), Penelope Wagner (Metno), Feiteng Wang (CAS), Hironori Yabuki (NIPR)
CryoNet Team
The CryoNet Team establishes the surface-based observational network, develops formal procedures for establishing the GCW network, defines the types of sites and site requirements, and evaluates candidate sites.  »
Lead*: Wolfgang Schöner (UGraz)
Members: Annett Bartsch (ZAMG), Julia Boike (AWI), Gino Casassa (Geoestudios, UMAG), Michele Citterio (GEUS), Angel Corona (NOAA), Charles Fierz (WSL/SLF), Christophe Genthon (LGGE), Petra Heil (AAD), Jeff Key (NOAA), Kari Luojus (FMI), Giovanni Macelloni (IFAC–CNR), Vasily Smolyanitsky (AARI), Þorsteinn Þorsteinsson (IMO), Hironori Yabuki (NIPR)
Best Practices Team
The Best Practices Team conducts an inventory of measurement methods at sites that measure components of the cryosphere. It compiles best practices, guidelines, and standards.  »
Leads*: Charles Fierz (WSL/SLF) and Þorsteinn Þorsteinsson (IMO)
Members: Michele Citterio (GEUS), Wolfgang Schöner (UGraz), Vasily Smolyanitsky (AARI), Petra Heil (AAD), Craig Smith (ECCC), Penelope Wagner (Metno), Eric Holloway (NOAA), Jeff Key (NOAA)
Integrated Products WG
The Integrated Products Working Group identifies key GCW datasets. This includes the development of an inventory of candidate in situ and satellite products for GCW that are mature (product quality) and generally accepted (credible) by the operational and scientific community. The Group facilitates the harmonization of products (e.g., multiple sea ice estimates), product intercomparisons, and oversees development of data policies for GCW including data exchange by WMO Members. It considers data homogeneity, interoperability, and compatibility of GCW observing and monitoring systems and derived cryospheric products.  »
Co-Chairs*: Kari Luojus (FMI) and Vasily Smolyanitsky (AARI)
Members: Ross Brown (ECCC), Dave Robinson (Rutgers), Patricia de Rosnay (ECMWF), Chris Derksen (ECCC), Vincent Fortin (Canada), Petra Heil (AAD), Sean Helfrich (NOAA/NIC), Lijuan Ma (CMA), Leslie Malone (ECCC), Samantha Pullen (UK Met Office), Wolfgang Schöner (UGraz), Mareile Wolff (Metno)
Snow Watch Team
The Snow Watch Team assesses the maturity and accuracy of snow products through intercomparison projects.  »
Leads*: Kari Luojus (FMI) and Ross Brown (ECCC)
Members: Patricia de Rosnay (ECMWF), Chris Derksen (ECCC), Vincent Fortin (Canada), Lijuan Ma (CMA), Dave Robinson (Rutgers), Sean Helfrich (NOAA/NIC), Samantha Pullen (UK Met Office), Mareile Wolff (Metno)
Sea Ice Products
The Sea Ice Team assesses the maturity and accuracy of sea ice products. This team is currently being formed.  »
Co-Leads*: Petra Heil (AAD) and ???
Members: Sean Helfrich (NOAA/NIC), Nick Hughes (NIS), Jeff Key (NOAA), Vasily Smolyanitsky (AARI), Tony Worby (ACE CRC)
Information and Services WG
The Information and Services Working Group is responsible for the ongoing development and operation of the GCW Portal and its Data Catalogue, cryospheric metadata and terminology, the GCW Website, and outreach activities. The Group manages linkages to data contributors, works with national focal points, and develops documentation for outside use. It works through interoperability issues with data centres and other programmes.  »
Co-Chairs*: Øystein Godøy (Metno) and Jeff Key (NOAA)
Members: Gino Casassa (Geoestudios, UMAG), Michele Citterio (GEUS), Charles Fierz (WSL/SLF), Tómas Jóhannesson (IMO), Tom Kralidis (ECCC), Kari Luojus (FMI), Peter Pulsifer (NSIDC), Bard Saadatnejad (Metno), Wolfgang Schöner (UGraz), Sandy Starkweather (CU), Rick Thoman (NOAA), Hironori Yabuki (NIPR)
Portal Team
The Portal Team develops the GCW web portal (catalogue). It determines linkages to data contributors, evaluates and improves interoperability with partners, and works on metadata and terminology issues with the Terminology Team.  »
Lead*: Øystein Godøy (Metno)
Members: Bard Saadatnejad (Metno), Charles Fierz (WSL/SLF), Tom Kralidis (ECCC), Kari Luojus (FMI), Tómas Jóhannesson (IMO), Peter Pulsifer (NSIDC), Wolfgang Schöner (UGraz), Sandy Starkweather (CU), Þorsteinn Þorsteinsson (IMO), Hironori Yabuki (NIPR)
Terminology Team
The Terminology Team identifies current cryosphere glossaries and develops/evaluates terminologies and vocabularies.  »
Lead*: Gino Casassa (Geoestudios, UMAG); Co-Lead: Sandy Starkweather (CU)
Members: Michele Citterio (GEUS), Charles Fierz (IACS), Øystein Godøy (Metno), Jeff Key (NOAA), Peter Pulsifer (NSIDC), Vasily Smolyanitsky (AARI), Hironori Yabuki (JAMSTEC)
Website and Outreach Team
The Website and Outreach Team develops and maintains the GCW information website. This Team is an authoritative voice on cryosphere issues. It creates outreach material for the media and the public.  »
Lead*: Jeff Key (NOAA)
Members: Aaron Letterly (UW/CIMSS), Rick Thoman (NOAA)

*Agency and institute acronyms:

AAD - Australian Antarctic Division
AARI - Arctic and Antarctic Research Institute (Russia)
ACE CRC - Antarctic Climate and Ecosystems Cooperative Research Centre
AWI - Alfred Wegener Institute
BAS - British Antarctic Survey
BIPM - Bureau International des Poid et Mesures
CAS - China Academy of Sciences
CliC - WCRP Climate and Cryosphere Project
CMA - China Meteorological Administration
CU - University of Colorado-Boulder (USA)
ECCC - Environment Canada, now Environment and Climate Change Canada
ECMWF - European Centre for Medium-Range Weather Forecasts
ESA - European Space Agency
FMI - Finnish Meteorological Institute
Geoestudios - A consulting company, Chile
GEUS - Geological Survey of Denmark and Greenland
IACS - International Association of Cryospheric Sciences
IFAC–CNR - Institute for Applied Physics – National Council of Research (Italy)
IMO - Icelandic Meteorological Office
LGGE - Laboratoire de Glaciologie et Géophysique (France)
LMU - Ludwig-Maximilians-Universitat (Germany)
METNO - Norwegian Meteorological Institute
JAMSTEC - Japan Agency for Marine-Earth Science and Technology
NIC - National Ice Center
NIS - Norwegian Ice Service, Norwegian Meteorological Institute
NIPR - National Institute for Polar Research
NMS - National Meteorological Service (Argentina)
NOAA - National Oceanic and Atmospheric Administration (USA)
NSIDC - National Snow and Ice Data Center (USA)
Rutgers - Rutgers University (USA)
SCAR - Scientific Committee on Antarctic Research
UGraz - University of Graz (Austria)
UMAG - University of Magallanes, Chile
UWaterloo - University of Waterloo (Canada)
UW/CIMSS - Cooperative Institute for Meteorological Satellite Studies, University of Wisconsin-Madison, USA
WSL - Swiss Federal Institute for Forest, Snow and Landscape Research
ZAMG - Zentralanstalt für Meteorologie und Geodynamik (Austria)