全球海岸线数据集
一个新的30米空间分辨率的全球海岸线矢量(GSV)是由2014年Landsat卫星图像的年度合成物开发的。图像的半自动分类是通过手动选择代表整个全球海岸线上的水和非水类别的训练点来完成的。多边形拓扑结构被应用于GSV,从而对全球岛屿的数量和大小进行了新的描述。绘制了三种规模的岛屿:大陆主岛(5),大于1平方公里的岛屿(21,818),以及小于1平方公里的岛屿(318,868)。GSV代表了海岸带陆地和水的界面边界,是陆地和海洋环境之间的一个空间上明确的生态域分离器。本文介绍了GSV的发展和特点。还提出了一种划定标准化、高空间分辨率的全球生态海岸单元(ECU)的方法。在这个沿海生态系统测绘工作中,将使用GSV将近岸的沿海水域与近岸的沿海陆地分开。制作GSV和ECU的工作是由地球观测小组(GEO)委托进行的,并与GEO的一些倡议有关,包括GEO生态系统、GEO海洋生物多样性观测网络(MBON)和GEO蓝色星球。
Publication URL: A new 30 meter resolution global shoreline vector and associated global islands database for the development of standardized ecological coastal units
Scale: 30m
Please use Citation:
Sayre, R., S. Noble, S. Hamann, R. Smith, D. Wright, S. Breyer, K. Butler, K. Van Graafeiland, C. Frye, D. Karagulle, D. Hopkins, D. Stephens, K. Kelly, Z. Basher, D. Burton, J. Cress, K. Atkins, D. Van Sistine, B. Friesen, R. Allee, T. Allen, P. Aniello, I. Asaad, M. Costello, K. Goodin, P. Harris, M. Kavanaugh, H. Lillis, E. Manca, F. Muller-Karger, B. Nyberg, R. Parsons, J. Saarinen, J. Steiner, and A. Reed. 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:sup2, S47-S56, DOI: 10.1080/1755876X.2018.1529714
Shared Under: Creative Commons Attribution-Share Alike 4.0 International License
Earth Engine Snippet¶
var mainlands = ee.FeatureCollection('projects/sat-io/open-datasets/shoreline/mainlands');
var big_islands = ee.FeatureCollection('projects/sat-io/open-datasets/shoreline/big_islands');
var small_islands = ee.FeatureCollection('projects/sat-io/open-datasets/shoreline/small_islands');
Map.setCenter(-4.843, 51.392,6)
Map.addLayer(ee.Image().paint(mainlands,0,3), {"palette":["008000"]}, 'Shoreline Mainlands')
Map.addLayer(ee.Image().paint(big_islands,0,3), {"palette":["0000FF"]}, 'Shoreline Big Islands')
Map.addLayer(ee.Image().paint(small_islands,0,3), {"palette":["FF0000"]}, 'Shoreline Small Islands')
Extra Info: Over 100 Million+ vertices
Curated by: Samapriya Roy
Keywords: Global Shoreline, Shoreline, Oceans
Last updated: 2020-05-08