A New Map of Global Islands

Authors: Roger Sayre*, United States Geological Survey, Dawn Wright*, Esri, Madeline Martin*, U.S. Geological Survey
Topics: Geographic Information Science and Systems
Keywords: USGS, Esri
Session Type: Paper
Day: 4/3/2019
Start / End Time: 11:45 AM / 12:30 PM
Room: Wilson A, Marriott, Mezzanine Level
Presentation File: No File Uploaded

A new high spatial resolution datalayer on global islands has been produced and is now freely available. The USGS and Esri have been commissioned by the Group on Earth Observations to produce standardized, robust, and practical global ecosystems maps, data, and tools. In the past they have produced global ecosystem maps for terrestrial and open ocean environments, and are currently undertaking to map global ecological coastal units (ECUs). As part of that work, they have recently produced a new global shoreline vector from satellite image interpretation, and used it to create a new, high-resolution (30 m), map and datalayer of global islands. The work is described in an AAG-produced booklet entitled A New Map of Global Islands which has been provided to conferencegoers at the 2018 AAG Annual Meeting. In this session, USGS and Esri staff will describe the work to produce the new coastline and islands data, and plans to use it for global coastal ecosystem mapping. A new tool called the Global Island Explorer will also be presented. The Global Island Explorer is a simple, elegant visualization and query tool for the exploration of approximately 340,000 islands in three size classes: Continental Mainlands, Big Islands (> 1 km2), and Small Islands (< 1 km2).

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