Global GIS : Hydrography danger points

Description:

This datalayer is a point coverage representing worldwide navigational hazards or dangers near ocean and navigable lake coastlines and was published as part of the USGS Global GIS : global coverage database. Features in this layer have a FACC (Feature and Attribute Coding Catalogue) Codes of either BD130, defined as, 'Rock; An isolated rocky formation or a single large stone above or below the water surface,' or BD180, 'Wreck; The ruined remains of a vessel.' The datalayer was derived from the National Imagery and Mapping Agency's (NIMA, now the Nation Geospatial-Intelligence Agency (NGA)) Vector Map (VMap) Level 0 database (1997). The USGS Global GIS database contains a wealth of USGS and other public domain data, including global coverages of elevation, landcover, seismicity, and resources of minerals and energy at a nominal scale of 1:1 million. The U.S. Geological Survey (USGS) and The American Geological Institute (AGI) announced a cooperative agreement that will focus on making the USGS Global Geographic Information System (GIS) database readily available to educators and the general public in the form of a DVD based world atlas. The Vector Map (VMap) Level 0 database represents the third edition of the Digital Chart of the World. The second edition was a limited release item published 1995 09. The product is dual named to show its lineage to the original DCW, published in 1992, while positioning the revised product within a broader emerging-family of VMap products. VMap Level 0 is a comprehensive 1:1,000,000 scale vector basemap of the world. It consists of cartographic, attribute, and textual data stored on compact disc read only memory (CD-ROM). The primary source for the database is the National Imagery and Mapping Agency's (NIMA) Operational Navigation Chart (ONC) series. This is the largest scale unclassified map series in existence that provides consistent, continuous global coverage of essential basemap features. The database contains more than 1,900 megabytes of vector data and is organized into 10 thematic layers. The data includes major road and rail networks, major hydrologic drainage systems, major utility networks (cross-country pipelines and communication lines), all major airports, elevation contours (1000 foot(ft), with 500ft and 250ft supplemental contours), coastlines, international boundaries and populated places. The database can be accessed directly from the four optical CD-ROMs that store the database or can be transferred to a magnetic media.

Creator:

United States. National Imagery and Mapping Agency

Publisher:

American Geological Institute

Provider:

Harvard

Collection:

Global GIS : global coverage and U.S. Geological Survey digital data series

Resource Class:

Datasets

Resource Type:

Point data

Subject:

Hydrography, Shipwrecks, oceans, inlandWaters, and transportation

Temporal Coverage:

1997

Date Issued:

2003

Spatial Coverage:

Earth, Northern Hemisphere, Southern Hemisphere, Eastern Hemisphere, Western Hemisphere, Africa, Asia, Australia, Europe, North America, and South America

Access Rights:

Public

Format:

Shapefile