New dataset available: global glacier inventory

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New dataset available: global glacier inventory

Anthony Arendt
Dear Colleagues:

We announce the release of version 1.0 of a global inventory of glacier outlines called the "Randolph Glacier Inventory", or RGI 1.0:

This dataset is the product of broad international cooperation aimed at producing a globally comprehensive set of outlines for the forthcoming Fifth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC AR5).

The data are supplemental to outlines already available through the Global Land Ice Measurements from Space initiative (GLIMS), and are provided under certain transitional usage constraints, all of which are specified to users who request access to the data via the GLIMS website. Please read these terms carefully before accessing and using the data.

A technical document accompanies the dataset which should be used to assess the quality of outlines for individual regions. More work is needed to improve the inventory, and we encourage users to help in this task so that we can produce a second version, scheduled for release in spring 2012. In particular, if you have better outlines than the ones you see in RGI, please provide them. Please also let us know in case you think we have missed a name of a contributor or if you have any other important comments on the technical document.

A note regarding the peripheral Greenland glaciers: this is our best estimate of non-ice sheet glaciers, and it is based on discussions with the ice sheet modeling community. We recognize the complexity of identifying these glaciers, and welcome input on developing a consensus on what should be included. Our goal is to minimize double-counting with respect to ice sheet mass balance assessments.

We thank all of our colleagues who have provided data and expertise in assembling this product.

Please contact us if you require further information.

Anthony Arendt

on behalf of  Tobias Bolch, Graham Cogley, Alex Gardner, Jon Ove Hagen, Regine Hock, Georg Kaser, Geir Moholdt, Tad Pfeffer, Frank Paul, Valentina Radic and Bruce Raup.

Anthony Arendt
Assistant Research Professor
Geophysical Institute
University of Alaska, Fairbanks
Ph 907-474-7427
Fax 907-474-7290

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