tt.s, tt.p {Rvelslant}R Documentation

P- and S-Wave Travel Time Measurements

Description

Dataframe of travel-time measurements for P- and S-waves.

Usage

data(tt.p)
data(tt.s)

Format

tt.p is a dataframe containing 5151 rows and tt.s is a dataframe containing 5364 rows. Each dataframe has the folowing columns:
[,1] hole.code An integer identifier for the site.
[,2] hoffset Horizontal offset of the seismic source from borehole in meters.
[,3] z Depth of each measurement in meters.
[,4] tt.slant Travel-time of each measurement in seconds.
[,5] sig Estimates of the standard deviation of each pick relative to the best pick.

Background

See reference for more information including descriptions and details of each hole code.

Author(s)

Eric M. Thompson <eric.thompson@tufts.edu>

Source

http://quake.wr.usgs.gov/~boore/data_online.htm

References

Boore, D. M. (2003) A compendium of p- and s-wave velocities from surface-to-borehole logging: Summary and reanalysis of previously published data and analysis of unpublished data U.S. Geological Survey Open-File Report 03-191.

Examples


data(tt.p)
data(tt.s)

dim(tt.p)
# [1] 5151    5
names(tt.p)
# [1] "hole.code" "hoffset"   "z"         "tt.slant"  "sig"

dim(tt.s)
# [1] 5364    5
names(tt.s)
# [1] "hole.code" "hoffset"   "z"         "tt.slant"  "sig"


[Package Rvelslant version 0.2-3 Index]