An Efficient and Leightweight Illumination model for Planetary Bodies including Direct and Diffuse Radiation

Dies ist die aktuellste Version dieses Eintrags.

Kurzfassung

We present a numerical illumination model to calculate direct as well as diffuse or Hapke scattered radiation scenarios on arbitrary planetary surfaces. This includes small body surfaces such as main belt asteroids as well as e.g. the lunar surface. The model is based on the raytracing method. This method is not restricted to spherical or ellipsiodal shapes but digital terrain data of arbitrary spatial resolution can be fed into the model. Solar radiation is the source of direct radiation, wavelength-dependent effects (e.g. albedo) can be accounted for. Mutual illumination of individual bodies in implemented (e.g. in binary or multiple systems) as well as self-illumination (e.g. crater floors by crater walls) by diffuse or Hapke radiation. The model is validated by statistical methods. A chi-square test is undertaken to compare simnulated images with DAWN images acquired during the survey phase at small body 4 Vesta.

Verfügbare Versionen dieses Eintrags

• An Efficient and Leightweight Illumination model for Planetary Bodies including Direct and Diffuse Radiation. (deposited 14 Nov 2019 09:05) [Gegenwärtig angezeigt]