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# Earthworm V4.1 Released

- To: earthw-list@nmt.edu
- Subject: Earthworm V4.1 Released
- From: Barbara Bogaert <bogaert@gldmutt.cr.usgs.gov>
- Date: Mon, 24 Jan 2000 14:41:56 -0700

    Earthworm Version 4.1 has been released.

    You can download the release from our ftp site:
    	ghtftp.cr.usgs.gov:pub/OUTGOING/earthworm/release_v4.1

    A New Earthworm_global.d can be found at
    ghtftp.cr.usgs.gov:pub/OUTGOING/earthworm.

    A short summary of new developments is given below.  For details of module
    enhancements
    and bug fixes, please see the release notes attached to this email or at
    the Earthworm ftp and/or web site.

    MAJOR DEVELOPMENTS
    ********************
    sac2hypo:  This program works only under Solaris. It reads the headers
       of all the SAC files in the current directory and creates a
       Hypoinverse archive file.

    tide2ew:  This program works only under NT. It listens to
       serial line communication from the pucks which collect tide
       data. After NumSamples for an SCN have been collected, a new
       TYPE_TRACEBUF message is created
       and written to the OutRing stamped with the SCN code given
       in the configuration file.

    fir: This module implements a general-purpose FIR filter for
       trace data. Low-pass, high-pass, multi-band-pass and notch filters
       can be specified using simple commands in the configuration file.

    decimate:  Major revision. Decimate is now a multi-stage filter-decimator.
       The filter coefficients are computed based on the decimation rate, using
       the Remez Exchange algorithm.

    wave_serverV/Tools: Three tools: inspect_tank, read_index and read_struct.
       These three tools are to help with problems in wave_serverV tank,
       index and structure files. These are primarily for development work.

    ring2sac: Writes continuous sac files given a list of Station, Component,
       Network names.  This software is contributed by University of Utah
       Seismograph Station.

    trig2disk/waveman2disk:  Both modules can create SAC format file running under
       NT andcreate PCSUDS format files under NT.

    EARTHWORM DOCUMENTATION
    ******************************
    The Earthworm web site has been upgraded to be consistent with
    Version 4.1.

    CONTRIBUTED SOFTWARE
    ********************
    Many Earthworm modules have been developed at regional networks to meet
    their specific needs.  Since some of these may be useful to other
    networks, we make these available at the Earthworm ftp site in the
    Contributed_software directory.  Currently, you will find modules
    developed at USGS Menlo Park, University of Memphis,  University of
    Washington and University of Alaska, Fairbanks.

    If you have questions or comments, please contact me at
    bogaert@usgs.gov.

    Barbara

    Barbara Bogaert				U.S. Geological Survey
    bogaert@ghtmail.usgs.gov		Box 25046, Stop 966
    office:  303-273-8491			Denver Federal Center
    FAX:     303-273-8600			Denver, CO 80225

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