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31 October, 2008

Antarctic Glaciological Data Center (AGDC) Menu Of Layers Now Available

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Users of the Antarctic Cryosphere Access Portal (A-CAP) Beta Version can now select layers belonging to the NSIDC Antarctic Glaciological Data Center (AGDC). These data sets are collected by individual investigators (principal investigators, or "PIs") funded by specific grants through the U.S. National Science Foundation (NSF) Office of Polar Programs (OPP). This feature is enabled as a new menu item—labeled AGDC NSF PI data sets—at the top of the layer-selection tree on the right-hand side of the screen. Refer to Figure 1.


Figure 1. Example A-CAP screenshot illustrating location of new AGDC layer-selection menu. Click on the image to view a larger version.

Although only a few AGDC layers are currently selectable within this new menu, we are actively incorporating the remaining AGDC NSF PI data sets into A-CAP. Check back regularly for the latest additions. To help facilitate discovery of pertinent data for users, the list of AGDC layers can be shown in one of four different categorizations: by subject topic, investigator last name, data set title, or data set identifier (e.g. nsidc-0323). A set of icons follows the title for each layer listed:

Fit map to layer: Zooms to the map extent for the selected layer. This is especially helpful when a layer covers a small spatial extent.
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Layer information: Displays citation, high-level background information, and related links for each layer. Citation information includes NSIDC product information and the relevant published journal article, when available.
Download data: Click on this icon to access the FTP site where the source data for this layer are archived.

We welcome your feedback on this project, which is currently in active development. If you have questions, comments or suggestions, please contact the A-CAP Team. A-CAP is developed using MapServer, an open source development environment for building spatially-enabled Internet applications.