mirror of
https://github.com/qgis/QGIS.git
synced 2025-03-07 00:02:15 -05:00
59 lines
7.0 KiB
HTML
59 lines
7.0 KiB
HTML
<html>
|
|
<head><link rel="stylesheet" type="text/css" href="help.css" /></head>
|
|
<body>
|
|
<h1 class='module'>Potential Incoming Solar Radiation</h1>
|
|
<div class='author'>O.Conrad (c) 2010</div>
|
|
<div class='description'>Calculation of potential incoming solar radiation (insolation).<br/>
|
|
<br/>
|
|
References:<br/>
|
|
<ul><li>Boehner, J., Antonic, O. (2009): Land Surface Parameters Specific to Topo-Climatology. in Hengl, T. & Reuter, H.I. [Eds.]: Geomorphometry - Concepts, Software, Applications.</li><li>Oke, T.R. (1988): Boundary Layer Climates. London, Taylor & Francis.</li><li>Wilson, J.P., Gallant, J.C. [Eds.] (2000): Terrain Analysis - Principles and Applications. New York, John Wiley & Sons, Inc.</li></ul><br/>
|
|
<br/>
|
|
*) Most options should do well, but TAPES-G based diffuse irradiance calculation ('Atmospheric Effects' methods 2 and 3) needs further revision!</div>
|
|
<h2>Parameters</h2>
|
|
<dl class='parameters'>
|
|
<dt>Grid system <div class='type'>Grid system</div></dt><dd>Grid system <div class='constraints'></div></dd>
|
|
<dt>Elevation <div class='type'>Input Grid</div></dt><dd> <div class='constraints'></div></dd>
|
|
<dt>Sky View Factor <div class='type'>Input Grid</div></dt><dd> <div class='constraints'></div></dd>
|
|
<dt>Water Vapour Pressure [mbar] <div class='type'>Input Grid</div></dt><dd> <div class='constraints'></div></dd>
|
|
<dt>Latitude [degree] <div class='type'>Input Grid</div></dt><dd> <div class='constraints'></div></dd>
|
|
<dt>Longitude [degree] <div class='type'>Input Grid</div></dt><dd> <div class='constraints'></div></dd>
|
|
<dt>Direct Insolation <div class='type'>Output Grid</div></dt><dd> <div class='constraints'></div></dd>
|
|
<dt>Diffuse Insolation <div class='type'>Output Grid</div></dt><dd> <div class='constraints'></div></dd>
|
|
<dt>Total Insolation <div class='type'>Output Grid</div></dt><dd>Total insolation, the sum of direct and diffuse incoming solar radiation. <div class='constraints'></div></dd>
|
|
<dt>Direct to Diffuse Ratio <div class='type'>Output Grid</div></dt><dd> <div class='constraints'></div></dd>
|
|
<dt>Duration of Insolation <div class='type'>Output Grid</div></dt><dd> <div class='constraints'></div></dd>
|
|
<dt>Sunrise <div class='type'>Output Grid</div></dt><dd>time of sunrise/sunset is only calculated if time span is set to single day <div class='constraints'></div></dd>
|
|
<dt>Sunset <div class='type'>Output Grid</div></dt><dd>time of sunrise/sunset is only calculated if time span is set to single day <div class='constraints'></div></dd>
|
|
<dt>Solar Constant [W / m²] <div class='type'>Floating point</div></dt><dd> <div class='constraints'></div></dd>
|
|
<dt>Local Sky View Factor <div class='type'>Boolean</div></dt><dd>Use sky view factor based on local slope (after Oke 1988), if no sky viev factor grid is given. <div class='constraints'></div></dd>
|
|
<dt>Units <div class='type'>Choice</div></dt><dd>Units for output radiation values. <div class='constraints'>Available choices: kWh / m², kJ / m², J / cm²</div></dd>
|
|
<dt>Location <div class='type'>Node</div></dt><dd> <div class='constraints'></div></dd>
|
|
<dt>Latitude <div class='type'>Degree</div></dt><dd> <div class='constraints'>Minimum: -90.0; Maximum: 90.0</div></dd>
|
|
<dt>Planetary Bending <div class='type'>Parameters</div></dt><dd> <div class='constraints'></div></dd>
|
|
<dt>Time <div class='type'>Node</div></dt><dd> <div class='constraints'></div></dd>
|
|
<dt>Time Period <div class='type'>Choice</div></dt><dd> <div class='constraints'>Available choices: moment, day, range of days</div></dd>
|
|
<dt>Moment [h] <div class='type'>Floating point</div></dt><dd> <div class='constraints'>Maximum: 24.0</div></dd>
|
|
<dt>Time Span [h] <div class='type'>Value range</div></dt><dd>Time span used for the calculation of daily radiation sums. <div class='constraints'>Minimum: 1.39579710889e-316; Maximum: 1.395734659e-316</div></dd>
|
|
<dt>Time Resolution [h]: Day <div class='type'>Floating point</div></dt><dd>Time step size for a day's calculation given in hours. <div class='constraints'>Maximum: 24.0</div></dd>
|
|
<dt>Time Resolution [d]: Range of Days <div class='type'>Integer</div></dt><dd>Time step size for a range of days calculation given in days. <div class='constraints'>Minimum: 1.0</div></dd>
|
|
<dt>Update <div class='type'>Choice</div></dt><dd>show direct insolation for each time step. <div class='constraints'>Available choices: do not update, update, colour stretch for each time step, update, fixed colour stretch</div></dd>
|
|
<dt>Day of Year <div class='type'>Node</div></dt><dd> <div class='constraints'></div></dd>
|
|
<dt>Day of Month <div class='type'>Choice</div></dt><dd> <div class='constraints'>Available choices: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31</div></dd>
|
|
<dt>Month <div class='type'>Choice</div></dt><dd> <div class='constraints'>Available choices: January, February, March, April, May, June, July, August, September, October, November, December</div></dd>
|
|
<dt>Day of Year (End of Range) <div class='type'>Node</div></dt><dd> <div class='constraints'></div></dd>
|
|
<dt>Day of Month <div class='type'>Choice</div></dt><dd> <div class='constraints'>Available choices: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31</div></dd>
|
|
<dt>Month <div class='type'>Choice</div></dt><dd> <div class='constraints'>Available choices: January, February, March, April, May, June, July, August, September, October, November, December</div></dd>
|
|
<dt>Atmospheric Effects <div class='type'>Node</div></dt><dd> <div class='constraints'></div></dd>
|
|
<dt>Atmospheric Effects <div class='type'>Choice</div></dt><dd> <div class='constraints'>Available choices: Height of Atmosphere and Vapour Pressure, Air Pressure, Water and Dust Content, Lumped Atmospheric Transmittance</div></dd>
|
|
<dt>Height of Atmosphere and Vapour Pressure <div class='type'>Node</div></dt><dd> <div class='constraints'></div></dd>
|
|
<dt>Height of Atmosphere [m] <div class='type'>Floating point</div></dt><dd> <div class='constraints'></div></dd>
|
|
<dt>Water Vapour Pressure [mbar] <div class='type'>Floating point</div></dt><dd>This value is used as constant if no vapour pressure grid is given. <div class='constraints'></div></dd>
|
|
<dt>Air Pressure, Water and Dust Content <div class='type'>Node</div></dt><dd> <div class='constraints'></div></dd>
|
|
<dt>Atmospheric Pressure [mbar] <div class='type'>Floating point</div></dt><dd> <div class='constraints'></div></dd>
|
|
<dt>Water Content [cm] <div class='type'>Floating point</div></dt><dd>Water content of a vertical slice of atmosphere in cm: 1.5 to 1.7, average=1.68 <div class='constraints'></div></dd>
|
|
<dt>Dust [ppm] <div class='type'>Floating point</div></dt><dd>Dust factor: 100 ppm (standard) <div class='constraints'></div></dd>
|
|
<dt>Lumped Atmospheric Transmittance <div class='type'>Node</div></dt><dd> <div class='constraints'></div></dd>
|
|
<dt>Lumped Atmospheric Transmittance [Percent] <div class='type'>Floating point</div></dt><dd>The transmittance of the atmosphere, usually between 60 and 80 percent. <div class='constraints'>Maximum: 100.0</div></dd>
|
|
</dl>
|
|
</body></html>
|