HLPOLARmap: GSHHS Low Resolution Coastlines for Polar data

In steingod/R-osisaf: Useful functions for handling EUMETSAT Ocean and Sea Ice SAF data

Description

GSHHS - A Global Self-consistent, Hierarchical, High-resolution Shoreline Database. GSHHS is a high-resolution shoreline data set amalgamated from two data bases in the public domain. The data have undergone extensive processing and are free of internal inconsistencies such as erratic points and crossing segments. The shorelines are constructed entirely from hierarchically arranged closed polygons. The data can be used to simplify data searches and data selections, or to study the statistical characteristics of shorelines and land-masses. It comes with access software and routines to facilitate decimation based on a standard line-reduction algorithm.

The dataset provided herein have been extracted using the software provided by the National Geophysical Data Center of NOAA Satellite and Information Service. The original dataset contains lakes, islands within lakes etc. This dataset contain only the coastlines.

The object presented here is based upon the gshhs_c file and is suitable for Polar products, not being too detailed.

Usage

    data(HLPOLARmap)

Format

This object is created using getRgshhsMap from package maptools. The object returned is a sp object.

Source

http://www.ngdc.noaa.gov/mgg/shorelines/gshhs.html

GSHHS is developed and maintained by:

Dr. Paul Wessel, SOEST, University of Hawai'i, Honlulu, HI. [e-mail], and

Dr. Walter H. F. Smith, NOAA Laboratory for Satellite Altimetry, National Oceanographic Data Center, Silver Spring, MD. [e-mail]

References

Wessel, P., and W. H. F. Smith, A Global Self-consistent, Hierarchical, High-resolution Shoreline Database, J. Geophys. Res., 101, #B4, pp. 8741-8743, 1996.

steingod/R-osisaf documentation built on May 30, 2019, 2:32 p.m.