Document Type
Article
Publication Date
11-2019
DOI
10.1080/1755876X.2018.1529714
Publication Title
Journal of Operational Oceanography
Volume
12
Issue
S2
Pages
S47-S56
Abstract
A new 30-m spatial resolution global shoreline vector (GSV) was developed from annual composites of 2014 Landsat satellite imagery. The semi-automated classification of the imagery was accomplished by manual selection of training points representing water and non-water classes along the entire global coastline. Polygon topology was applied to the GSV, resulting in a new characterisation of the number and size of global islands. Three size classes of islands were mapped: continental mainlands (5), islands greater than 1 km2 (21,818), and islands smaller than 1 km2 (318,868). The GSV represents the shore zone land and water interface boundary, and is a spatially explicit ecological domain separator between terrestrial and marine environments. The development and characteristics of the GSV are presented herein. An approach is also proposed for delineating standardised, high spatial resolution global ecological coastal units (ECUs). For this coastal ecosystem mapping effort, the GSV will be used to separate the nearshore coastal waters from the onshore coastal lands. The work to produce the GSV and the ECUs is commissioned by the Group on Earth Observations (GEO), and is associated with several GEO initiatives including GEO Ecosystems, GEO Marine Biodiversity Observation Network (MBON) and GEO Blue Planet.
ORCID
0000-0003-4462-7182 (Allen)
Original Publication Citation
Sayre, R., Noble, S., Hamann, S., Smith, R., Wright, D., Breyer, S., . . . Reed, A. (2019). A new 30 meter resolution global shoreline vector and associated global islands database for the development of standardized ecological coastal units. Journal of Operational Oceanography, 12(S2), S47-S56. doi:10.1080/1755876x.2018.1529714
Repository Citation
Sayre, Roger; Noble, Suzanne; Hamann, Sharon; Smith, Rebecca; Wright, Dawn; Breyer, Sean; Butler, Kevin; Graafeiland, Keith Van; Frye, Charlie; Karagulle, Deniz; Hopkins, Dabney; Stephens, Drew; Kelly, Kevin; Basher, Zeenatul; Burton, Devon; Cress, Jill; Atkins, Karina; Sistine, D. Paco Van; Friesen, Beverly; Allee, Revecca; Allen, Tom; Aniello, Peter; Asaad, Irawan; Costello, Mark John; Goodin, Kathy; Harris, Peter; Kavanaugh, Maria; Lillis, Helen; Manca, Elonora; Muller-Karger, Frank; Nyberg, Bjorn; Parsons, Rost; Saarinen, Jusrin; Steiner, Jack; and Reed, Adam, "A New 30 Meter Resolution Global Shoreline Vector and Associated Global Islands Database for the Development of Standardized Ecological Coastal Units" (2019). Political Science & Geography Faculty Publications. 22.
https://digitalcommons.odu.edu/politicalscience_geography_pubs/22
Comments
© 2019 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives License (http://creativecommons.org/licenses/by-nc-nd/ 4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited, and is not altered, transformed, or built upon in any way.