HELMAP {RTOMO} | R Documentation |
Geographic map of Mt. St. Helens Summit region
Description
Geographic map of Mt. St. Helens Summit region. Lnes showing water shed
and outline of tree line prior to 1980 eruption.
Usage
data(HELMAP)
Format
STROKESlist of meta data for map
namname of stroke
numnumber of points
indexstarting index
colcolor
stylestyle, 1,2,3
codegeographic code
LAT1Lower left latitude
LAT2upper right latitude
LON1Lower left longitude
LON2upper right longitude
POINTSpoints structure
latlatitudes
lonlongitudes
PROJprojection list
typetype of projection, 2=UTM
LAT0origin latitude
LON0origin longitude
LAT1other parameters that depend on projection
LAT2other parameters that depend on projection
LATSother parameters that depend on projection
Sother parameters that depend on projection
Nother parameters that depend on projection
LONSother parameters that depend on projection
Eother parameters that depend on projection
Wother parameters that depend on projection
DLATother parameters that depend on projection
DLONother parameters that depend on projection
FEfalse easting
FNfalse northing
namename of projection
References
Lees, J. M. (1992): The magma system of Mount St. Helens: Non-linear
high resolution P-wave tomography,
J. Volc. Geoth. Res., 53(1-4), 103-116.
Examples
data(HELMAP)
## maybe str(HELMAP) ; plot(HELMAP) ...
[Package
RTOMO version 1.0-3
Index]