This directory contains software for processing strainmeter (and tiltmeter)
data. It will simultaneously estimate tidal amplitudes and phases, atmospheric pressure
response, response to other inputs, secular rates, rate changes, offsets, exponential and
logarithmic curves, along with the parameters of power-law noise.

++++++++++++++++++++++++++++++++++++++++++++
FOR THOSE WHO HAVE cleanstrain+ PRIOR TO MARCH 2012, you will  
need to download a patch, called
patch_20120308.tar.gz
into your ../Strain/Progs directory and follow the README

This patch fixes leap year conversion from 2012
+++++++++++++++++++++++++++++++++++++++++++++

There are two "distributions", one being a compiled version
that will run under Linux and a second version for which the user
needs to compile using a FORTRAN compiler.  I have successfully
run this both under Linux and the Intel MacIntosh computers.
Download the latest version of either.

After 'un-tar-ring' the download, please read the pdf files including:
Installation.pdf
and
cleanstrain.pdf
The first instruct how to install this software and the second is
the documentation for the software.
In addition, there is an EXAMPLE directory with some data and instructions
Finally, there are two other pdf files,
glitch.pdf,  which describes a simple program that help identify bad data
and
install_baytap.pdf, which describes the installation of another program that
  estimates tidal and pressure response whose results can be compared with cleanstrain+.
  It is not required that baytap be present; these instructions were written by
   Kathleen Hodgkinson of UNAVCO.

This set of software handles three different formats
of data; USGS bottles (binary files), plus two ASCII formats.
Level 0/1 PBO borehole strainmeter are available in bottle form. To
get executables to handle bottles for Linux, go to:
ftp://ehzftp.wr.usgs.gov/silver/LINUX
or 
ftp://ehzftp.wr.usgs.gov/langbein/CLEANST/LOWFREQ_LINUX
    (the silver directory might be updated; the langbein
     directory has a few more programs that I have on my computer)

For MacIntosh (for both PPC and Intel versions) go to:
ftp://ehzftp.wr.usgs.gov/silver/MAC

For Sun/Solaris, go to
ftp://ehzftp.wr.usgs.gov/silver/SUN

As a comment, bottle made on either the Sun or Mac PPC models
can not be "read" with Linux/Intel or Mac/Intel. However, there
are programs included which convert the bottles from one type to
the other:

lbotr (and lboti) convert Sun/PPC bottle (real or integer type) to Intel type
xqp allows one to plot bottles using a Tektronix terminal available by
   typing xterm -t &
catbot convert bottled data to ASCII
bag and qts manipulate bottle files
qped is a old-time, "gui" that allows one to interactively edit bottled
   data with a Tektronix terminal.

For now, to add to some "confusion", there is only the PPC versions for Macs
of the bottle routines available. However, they do run fine on the
the Mac Intel computers; these routines handle the PPC/Sun bottle types.

In the cleanstrain scripts, there are a number of utilities
that convert data from one format to another.