IRISSeismic: getSNCL – R documentation

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getSNCL

Retrieve seismic data from IRIS DMC

Description

The getSNCL() method is a convenience wrapper for the getSNCL() method and returns a Stream object in which individual Traces have been sorted by start time.

Usage

getSNCL(obj, sncl, starttime, endtime, ...)

Arguments

`obj`	`IrisClient` object
`sncl`	character string with the SNCL code
`starttime`	POSIXct class specifying the starttime (GMT)
`endtime`	POSIXct class specifying the endtime (GMT)
`...`	optional arguments `quality` optional character string identifying the quality. IRIS webservices defaults to quality="M". `repository` optional character string identifying whether to exclusively search primary archive or realtime collection buffers. Acceptable values are "primary" or "realtime". If not specified, IRIS webservices defaults to both repositories. `inclusiveEnd` optional logical determining whether the endtime is inclusive (default = TRUE) `ignoreEpoch` optional logical defining behavior when multiple epochs are encountered (default = FALSE)

Details

The SNCL argument should be ordered network-station-location channel, e.g. IU.ANMO.00.LHZ. This argument is split into component parts which are then used in a call to the getSNCL() method.

Value

A new Stream object is returned.

Author(s)

Jonathan Callahan jonathan@mazamascience.com

References

The IRIS DMC dataselect web service:

http://service.iris.edu/fdsnws/dataselect/1/

Examples

## Not run: 
# Open a connection to IRIS DMC webservices
iris <- new("IrisClient")

# Use getSNCL to request data for II.JTS.00.BHZ
starttime <- as.POSIXct("2001-02-28",tz="GMT")
endtime <- as.POSIXct("2001-03-01",tz="GMT")

st <- getSNCL(iris, "II.JTS.00.BHZ",starttime, endtime, quality="M",
              repository="primary",inclusiveEnd=FALSE,ignoreEpoch=TRUE)

# Display structure of trace(s)

str(st)

# Plot trace
plot(st)

## End(Not run)

IRISSeismic

Classes and Methods for Seismic Data Analysis

v1.6.2

GPL (>= 2)

Authors

Jonathan Callahan [aut], Rob Casey [aut], Gillian Sharer [aut, cre], Mary Templeton [aut], Chad Trabant [ctb]

Initial release