SunCalculator Copyright (c) 2015-2019 Marco Ernst

By using SunCalculator, the User accepts the following license agreement:

 1. SunCalculator is the intellectual property of its Author, Dr. Marco Ernst.

 2. SunCalculator is free for non-commercial use only.

 3. Unless explicitly allowed by a separate license agreement, other use and 
    further redistribution in any form is prohibited, for free or commercially, 
	including integration into other software tools or web services, and including 
	commercial distribution of the rendered results.
	
 4. SunCalculator is distributed WITHOUT ANY WARRANTY; without even the implied 
    warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE of the rendered 
	results.
	
 5. Neither the Author nor the institution through which this copy of SunCalculator 
    is obtained can be held responsible for the consequences of programming errors, 
	inaccuracies, or misuse.
	
 6. The User refers to following publication whenever the use of SunCalculator is 
    mentioned or results from SunCalculator are used:
    - M. Ernst, H. Holst, M. Winter, and P. P. Altermatt, “SUNCALCULATOR: A program 
	  to calculate the angular and spectral distribution of direct and diffuse solar 
	  radiation,” Sol. Energy Mater. Sol. Cells 157, 913–922 (2016).
	  doi: 10.1016/j.solmat.2016.08.008
	  
 7. The User accepts the separate license agreements of implemented libraries and 
    databases, as referenced below.

	
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SunCalculator implements the SunCalculator-Library. The following copyright notice applies only to the SunCalculator-Library.

SunCalculator-Library Copyright (c) 2015 Institute for Solar Energy Research Hamelin

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 name of the copyright holder nor the names of its
    contributors may be used to endorse or promote products derived
    from this software without specific prior written permission.

 4. Redistributions of any form whatsoever must retain the following
    acknowledgment: 'This product includes the SunCalculator-Library developed 
	by Marco Ernst and Hendrik Holst at the 
	Institute for Solar Energy Research Hamelin (www.isfh.de)'
	
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"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 THE COPYRIGHT
HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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SunCalculator includes a pre-calculated SMARTS database (Filename: SMARTS_fine.bin). 
It is mandatory to accept the SMARTS license agreement (at http://www.nrel.gov/rredc/smarts/register.html) 
prior using the SMARTS database within SunCalculator.

SMARTS references:
Gueymard, C. (2001). "Parameterized Transmittance Model for Direct Beam and Circumsolar Spectral Irradiance." Solar Energy (71:5); pp. 325–346.
Gueymard, C. (1995). "SMARTS, A Simple Model of the Atmospheric Radiative Transfer of Sunshine: Algorithms and Performance Assessment." Professional Paper FSEC-PF-270-95. Florida Solar Energy Center, 1679 Clearlake Rd., Cocoa, FL 32922.