commit 84db77ed569d73c742f8de823b33f4ebbd36222b
parent af35602f4ae09a1ac858dfc3b8cdbf06fa7dd8e1
Author: Vincent Forest <vincent.forest@meso-star.com>
Date: Wed, 8 Feb 2023 17:10:00 +0100
htrdr: improve the related projects section
Add a description of the High-Tune project and of the Rad-Net project.
Diffstat:
1 file changed, 35 insertions(+), 13 deletions(-)
diff --git a/htrdr/htrdr.html.in b/htrdr/htrdr.html.in
@@ -139,40 +139,62 @@ used for computing various quantities:</p>
the simulation are described in <a
href="https://rmets.onlinelibrary.wiley.com/doi/full/10.1002/qj.3614">Strauss
et al. (2019)</a>.
+ The infrared rendering is calculated in [9, 10] µm; the color map
+ displays the brightness temperature in Kelvin.
</div>
</div>
-<p><code>htrdr</code> is currently used, developped and extended in the
-following research projects.</p>
+<p><code>htrdr</code> has been used, developped and extended in the following
+research projects:</p>
<ul>
+ <li>The development of <code>htrdr</code> began with the <a
+ href="https://anr.fr/Projet-ANR-16-CE01-0010">High-Tune</a> project.
+ Originally, it simulated the radiative transfer of an <b>external source</b>
+ (solar) in a scene composed of a triangulated ground and a <b>plane-parallel
+ atmosphere</b>, in the presence of a <b>cloud field</b> provided over a
+ structured grid. It was later extended in order to take into account a
+ <b>non-gray surface</b>, and the possibility to perform radiative transfer
+ computations for a <b>internal source</b> (ground and atmosphere).</li>
+
<li>In project <a
href="https://www.umr-cnrm.fr/spip.php?article1204">ModRadUrb</a> the
- emphasis is put on taking into account the representation of <b>complex
+ emphasis was put on taking into account the representation of <b>complex
geometries</b> (detailled city scenes) using <b>spectral properties of a
arbitrary number of materials</b>. The solver was extended to solve upward
and downward <b>atmospheric fluxes</b> at any level in the scene, both in the
visible and the infrared spectral ranges.</li>
- <li>In project <a href="https://mcg-rad.ipsl.fr/en/">MCG-Rad</A> the
- <code>htrdr</code> codebase is used to explore a whole new class of radiative
- transfer algorithms: instead of relying on the full atmospheric radiative
- properties data set (prerequisite for current algorithms), the so-called
- <b>line sampling</b> algorithms will not require nor compute the absorption
- coefficient of the atmosphere. Instead, it will sample energetic transitions
- and use a Line-by-Line parameters database (such as <a
+ <li>In project <a href="https://anr.fr/Projet-ANR-18-CE46-0012">MCG-Rad</a>
+ the <code>htrdr</code> codebase was used to explore a whole new class of
+ radiative transfer algorithms: instead of relying on the full atmospheric
+ radiative properties data set (prerequisite for current algorithms), the
+ so-called <b>line sampling</b> algorithms will not require nor compute the
+ absorption coefficient of the atmosphere. Instead, it will sample energetic
+ transitions and use a Line-by-Line parameters database (such as <a
href="https://hitran.org/">HITRAN</a>) in order to perform a <b>rigorous
spectral integration</b>, both in the visible and the infrared spectral
ranges.</li>
<li>In project <a href=https://anr.fr/Project-ANR-18-CE05-0015>Astoria</a>,
- <code>htrdr</code> is used to produce images in the visible, in the presence
+ <code>htrdr</code> was used to produce images in the visible, in the presence
of <b>combustion chambers</b> where radiation scattering is performed by soot
- aggregates. One of the main difficulty resides in the fact that the chamber is
- <b>illuminated by a laser</b>: the classical solar radiative transfer
+ aggregates. One of the main difficulty resides in the fact that the chamber
+ is <b>illuminated by a laser</b>: the classical solar radiative transfer
algorithm then fails to converge because of the collimated radiation source,
and a <a href="https://doi.org/10.1016/j.jqsrt.2021.107725">new algorithm</a>
was thus designed in order to ensure numerical convergence.</li>
+
+ <li>In project <a href="https://anr.fr/Projet-ANR-21-CE49-0020">Rad-Net</a>,
+ <code>htrdr</code> was adapted for applications in <b>planetology</b> and
+ <b>astrophysics</b>. The application is now a scene composed of an
+ <b>arbitrary number of solid surfaces</b> (a planet, satellites) represented
+ by triangular meshes and materials which describe their <b>spectral
+ reflectivity/emissivity</b> properties. The <b>3D atmopshere</b> is defined
+ by a number of participating semi-transparent media (a gas mixture and a
+ arbitrary number of aerosol modes) whose radiative properties are provided at
+ the nodes of a <b>unstructured tetraedric volumic grid</b>, independant for
+ each medium.</li>
</ul>
<h2>A straight interface</h2>
