Vegetation and Open Water High-Resolution Maps for Selected US Tidal Marshes, 2015

This dataset provides maps of tidal marsh green vegetation, non-vegetation, and open water for six estuarine regions of the conterminous United States: Cape Cod, MA; Chesapeake Bay, MD, Everglades, FL; Mississippi Delta, LA; San Francisco Bay, CA; and Puget Sound, WA. Maps were derived from current National Agriculture Imagery Program data (2013-2015) using object-based classification for estuarine and palustrine emergent tidal marshes as indicated by a modified NOAA Coastal Change Analysis Program (C-CAP) map. These 1m resolution maps were used to calculate the fraction of green vegetation within 30m Landsat pixels for the same tidal marsh regions and these data are provided in a related dataset.

本数据集为美国本土（conterminous United States）的6个河口区域提供潮汐沼泽绿色植被、非植被与开阔水域的分类地图，涉及区域包括马萨诸塞州科德角（Cape Cod, MA）、马里兰州切萨皮克湾（Chesapeake Bay, MD）、佛罗里达州大沼泽地（Everglades, FL）、路易斯安那州密西西比河三角洲（Mississippi Delta, LA）、加利福尼亚州旧金山湾（San Francisco Bay, CA）以及华盛顿州普吉特海湾（Puget Sound, WA）。该地图以2013-2015年最新的美国农业部农业影像计划（National Agriculture Imagery Program, NAIP）数据为数据源，参照经修正的美国国家海洋和大气管理局（National Oceanic and Atmospheric Administration, NOAA）海岸变化分析计划（Coastal Change Analysis Program, C-CAP）地图，采用面向对象分类方法针对河口及泛滩挺水潮汐沼泽完成分类制图。本数据集附带1米分辨率的上述分类地图，已被用于计算同一潮汐沼泽区域内30米分辨率陆地卫星（Landsat）像素中的绿色植被占比，相关计算数据已在关联数据集中提供。