EXTRACT_VOLCANOES

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
EXAMPLES

NAME

extract_volcanoes − Extract subsets of data from Smithsonian volcano database

SYNOPSIS

extract_volcanoes [ database] [ −Rwest/east/south/north ] [ −V ] [ −Zzlow/zhigh ] [ > outfile ]

DESCRIPTION

extract_volcanoes reads the Smithsonian catalog of Holocene to Recent volcanoes and extracts a subset based on the given command line options. The output format is of the form (lon, lat, elevation, name) which may be plotted with psxy.

OPTIONS

databasee

The Smithsonian database [by default we read $GMT_DATADIR/volcanos_of_the_world.txt]. −H Output a 1-record header [no header].

−R

Limit search to a geographical region. [Default is global search]

−V

Report progress and final statistics to stderr [Default is silent].

−Z

Extract volcanoes with elevations in the specified range [Default uses all elevations].

EXAMPLES

To extract all volcanoes from south America, limited to sites at elevations greater than1 km, try

extract_volcanoes −R-85/-30/-60/10 −Z1000/10000 −V > volc.d