This file is intended to clarify ownership, copyrights and licenses.
Where possible individual files also carry brief copyright notices. 


RNetCDF
=======

All files except those indicated later are
Copyright (C) 2004-2020 Pavel Michna and Milton Woods.
They are licensed under the terms of the GNU General Public License:

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License along
    with this program; if not, write to the Free Software Foundation, Inc.,
    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

See http://www.r-project.org/Licenses/GPL-2 for license details.


NetCDF
======

The documentation of RNetCDF is based on the "NetCDF User's Guide for C",
and installation of RNetCDF requires linking with the Unidata NetCDF library.
These uses of NetCDF are allowed by the NetCDF copyright:

    Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
    2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
    University Corporation for Atmospheric Research/Unidata.

    Portions of this software were developed by the Unidata Program at the 
    University Corporation for Atmospheric Research.

    Access and use of this software shall impose the following obligations
    and understandings on the user. The user is granted the right, without
    any fee or cost, to use, copy, modify, alter, enhance and distribute
    this software, and any derivative works thereof, and its supporting
    documentation for any purpose whatsoever, provided that this entire
    notice appears in all copies of the software, derivative works and
    supporting documentation.  Further, UCAR requests that the user credit
    UCAR/Unidata in any publications that result from the use of this
    software or in any product that includes this software, although this
    is not an obligation. The names UCAR and/or Unidata, however, may not
    be used in any advertising or publicity to endorse or promote any
    products or commercial entity unless specific written permission is
    obtained from UCAR/Unidata. The user also understands that
    UCAR/Unidata is not obligated to provide the user with any support,
    consulting, training or assistance of any kind with regard to the use,
    operation and performance of this software nor to provide the user
    with any updates, revisions, new versions or "bug fixes."

    THIS SOFTWARE IS PROVIDED BY UCAR/UNIDATA "AS IS" AND ANY EXPRESS OR
    IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
    DISCLAIMED. IN NO EVENT SHALL UCAR/UNIDATA BE LIABLE FOR ANY SPECIAL,
    INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
    FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
    NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
    WITH THE ACCESS, USE OR PERFORMANCE OF THIS SOFTWARE.


UDUNITS2
========

RNetCDF may be linked with the UDUNITS2 library.
To simplify distribution of RNetCDF in binary form,
data files required by UDUNITS2 are included with RNetCDF,
subject to the following license:

    Copyright 2014 University Corporation for Atmospheric Research and contributors.
    All rights reserved.

    This software was developed by the Unidata Program Center of the
    University Corporation for Atmospheric Research (UCAR)
    <http://www.unidata.ucar.edu>.

    Redistribution and use in source and binary forms, with or without modification,
    are permitted provided that the following conditions are met:

       1) Redistributions of source code must retain the above copyright notice,
	  this list of conditions and the following disclaimer.
       2) Redistributions in binary form must reproduce the above copyright notice,
	  this list of conditions and the following disclaimer in the documentation
	  and/or other materials provided with the distribution.
       3) Neither the names of the development group, the copyright holders, nor the
	  names of contributors may be used to endorse or promote products derived
	  from this software without specific prior written permission.
       4) This license shall terminate automatically and you may no longer exercise
	  any of the rights granted to you by this license as of the date you
	  commence an action, including a cross-claim or counterclaim, against
	  the copyright holders or any contributor alleging that this software
	  infringes a patent. This termination provision shall not apply for an
	  action alleging patent infringement by combinations of this software with
	  other software or hardware.

    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
    FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE CONTRIBUTORS
    OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
    WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
    CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS WITH THE SOFTWARE.


NCSA HDF5
=========

Although the RNetCDF package does not use HDF5 directly,
if statically linked to a build of netcdf with the netcdf4 feature enabled,
it will link in code from HDF5. The license for such code is given below:

    Copyright Notice and License Terms for 
    HDF5 (Hierarchical Data Format 5) Software Library and Utilities
    -----------------------------------------------------------------------------

    HDF5 (Hierarchical Data Format 5) Software Library and Utilities
    Copyright 2006-2014 by The HDF Group.

    NCSA HDF5 (Hierarchical Data Format 5) Software Library and Utilities
    Copyright 1998-2006 by the Board of Trustees of the University of Illinois.

    All rights reserved.

    Redistribution and use in source and binary forms, with or without 
    modification, are permitted for any purpose (including commercial purposes) 
    provided that the following conditions are met:

    1. Redistributions of source code must retain the above copyright notice, 
       this list of conditions, and the following disclaimer.

    2. Redistributions in binary form must reproduce the above copyright notice, 
       this list of conditions, and the following disclaimer in the documentation 
       and/or materials provided with the distribution.

    3. In addition, redistributions of modified forms of the source or binary 
       code must carry prominent notices stating that the original code was 
       changed and the date of the change.

    4. All publications or advertising materials mentioning features or use of 
       this software are asked, but not required, to acknowledge that it was 
       developed by The HDF Group and by the National Center for Supercomputing 
       Applications at the University of Illinois at Urbana-Champaign and 
       credit the contributors.

    5. Neither the name of The HDF Group, the name of the University, nor the 
       name of any Contributor may be used to endorse or promote products derived 
       from this software without specific prior written permission from 
       The HDF Group, the University, or the Contributor, respectively.

    DISCLAIMER: 
    THIS SOFTWARE IS PROVIDED BY THE HDF GROUP AND THE CONTRIBUTORS 
    "AS IS" WITH NO WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED.  In no 
    event shall The HDF Group or the Contributors be liable for any damages 
    suffered by the users arising out of the use of this software, even if 
    advised of the possibility of such damage. 

    -----------------------------------------------------------------------------
    -----------------------------------------------------------------------------

    Contributors:   National Center for Supercomputing Applications (NCSA) at 
    the University of Illinois, Fortner Software, Unidata Program Center (netCDF), 
    The Independent JPEG Group (JPEG), Jean-loup Gailly and Mark Adler (gzip), 
    and Digital Equipment Corporation (DEC).

    -----------------------------------------------------------------------------

    Portions of HDF5 were developed with support from the Lawrence Berkeley 
    National Laboratory (LBNL) and the United States Department of Energy 
    under Prime Contract No. DE-AC02-05CH11231.

    -----------------------------------------------------------------------------

    Portions of HDF5 were developed with support from the University of 
    California, Lawrence Livermore National Laboratory (UC LLNL).  
    The following statement applies to those portions of the product and must 
    be retained in any redistribution of source code, binaries, documentation, 
    and/or accompanying materials:

       This work was partially produced at the University of California, 
       Lawrence Livermore National Laboratory (UC LLNL) under contract 
       no. W-7405-ENG-48 (Contract 48) between the U.S. Department of Energy 
       (DOE) and The Regents of the University of California (University) 
       for the operation of UC LLNL.

       DISCLAIMER: 
       This work was prepared as an account of work sponsored by an agency of 
       the United States Government. Neither the United States Government nor 
       the University of California nor any of their employees, makes any 
       warranty, express or implied, or assumes any liability or responsibility 
       for the accuracy, completeness, or usefulness of any information, 
       apparatus, product, or process disclosed, or represents that its use 
       would not infringe privately- owned rights. Reference herein to any 
       specific commercial products, process, or service by trade name, 
       trademark, manufacturer, or otherwise, does not necessarily constitute 
       or imply its endorsement, recommendation, or favoring by the United 
       States Government or the University of California. The views and 
       opinions of authors expressed herein do not necessarily state or reflect 
       those of the United States Government or the University of California, 
       and shall not be used for advertising or product endorsement purposes.
    -----------------------------------------------------------------------------



Pavel Michna

