Historical shorelines as determined using orthorectified and georeferenced aerial photographs and National Ocean Survey (NOS) topographic survey charts. The low water mark is used as the historical shoreline. For further information, please see: http://www.soest.hawaii.edu/coasts/erosion/

Historical shorelines as determined using orthorectified and georeferenced aerial photographs and National Ocean Survey (NOS) topographic survey charts. The low water mark is used as the historical shoreline. For further information, please see: http://www.soest.hawaii.edu/coasts/erosion/

Combined layer of transect layers provided by Hawaii Coastal Geology Group for historical shoreline study. Includes shoreline change rates at the location of the transect. The "WLR" property records the shoreline change rate in meters per year (m/y) while "WLR_calcfeet" is in feet per year (ft/y). Negative values indicate a trend of beach erosion (loss) while positive values indicate a trend of beach accretion (growth). For further information, please see: http://www.soest.hawaii.edu/coasts/erosion/

Coastlines for the main Hawaiian islands. Source: USGS Digital Line Graphs, 1983 version. History: Extracted by OSP staff from the 1983 1:24,000 USGS Digital Line Graphs.

Shoreline of Olosega, American Samoa

Shoreline of American Samoa

Shoreline of Swains Atoll, American Samoa

Shorelines of the Commonwealth of the Northern Mariana Islands (CNMI).

This dataset represents a subset of the global distribution of warm water coral reefs for Hawaii and should be seen as an "interim" product. It has been compiled from a number of data sources which have been merged together by UNEP-WCMC and the WorldFish Centre in collaboration with WRI and TNC. It supersedes the dataset used in the World Atlas of Coral Reefs (2001), although some aspects of this product still originate from that data source. This amalgamated dataset has been created to further mobilise the Millennium Coral Reef Map Products and their validation. This data set should by no means replace the official release of the Millennium coral reef map and users should always check at the official sites for the most up-to-date available information. This dataset does not contain the full 5 level geomorphological categorization. In part, for the validated products, it maintains the simplified Reefbase subset but for the remaining areas i.e. the unvalidated data and data from other sources, there is only a single class to indicate coral reef. When using these data, please cite the following: UNEP-WCMC, WorldFish Centre, WRI, TNC (2010). Global distribution of warm-water coral reefs, compiled from multiple sources including the Millennium Coral Reef Mapping Project. Version 1.3. Includes contributions from IMaRS-USF and IRD (2005), IMaRS-USF (2005) and Spalding et al. (2001). Cambridge (UK): UNEP World Conservation Monitoring Centre. For more information go to: http://data.unep-wcmc.org/datasets/1

Shoreline of Johnson Atoll