JSAC.seis: JSAC.seis

Description

Read SEGY/SAC format binary data

Usage

JSAC.seis(fnames, Iendian = 1 , HEADONLY=FALSE, BIGLONG=TRUE, PLOT = FALSE)
JSEGY.seis(fnames, Iendian = 1 , HEADONLY=FALSE, BIGLONG=TRUE, PLOT = FALSE)

Arguments

fnames

vector of file names to be extracted and converted.

Iendian

Endian-ness of the data: 1,2,3: "little", "big", "swap". Default = 1 (little)

HEADONLY

logical, TRUE= header information only

BIGLONG

logical, TRUE=long=8 bytes

PLOT

logical, whether to plot the data after reading in

Value

List containing the seismic data and header information. Each trace consists of a list with:
fnoriginal file name
stastation name
compcompnent
dtdelta t in seconds
DATTIMtime list
yryear
jdjulian day
momonth
domday of month
hrhour
miminute
secsec
msecmilliseconds
dtdelta t in seconds
t1time start of trace
t2time end of trace
offoff-set
Nnumber of points in trace
unitsunits
ampvector of trace values

Details

Uses readBin to extract data in SAC format. user must know what kind of machine the data was created on for I/O purposes.

Examples

Run this code

Lname = list.files(path='/data/wadati/bourbon/LaurelCanNC/R005.01' , pattern="08.005.01.41.23.9024", full.names=TRUE)

S1  = JSAC.seis(Lname, Iendian = 1, PLOT = FALSE)