Articles | Volume 17, issue 7
https://doi.org/10.5194/amt-17-1965-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-17-1965-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
08 Apr 2024
Research article |
| 08 Apr 2024
| 08 Apr 2024
An improved BRDF hotspot model and its use in VLIDORT for studying the impact of atmospheric scattering on hotspot directional signatures in the atmosphere
NASA Langley Research Center, Hampton, VA 23681, USA
NASA Langley Research Center, Hampton, VA 23681, USA
Robert Spurr
RT SOLUTIONS Inc., Cambridge, MA 02138, USA
Ming Zhao
NASA Langley Research Center, Hampton, VA 23681, USA
Adnet Systems Inc., Bethesda, MD 20817, USA
Qiguang Yang
NASA Langley Research Center, Hampton, VA 23681, USA
Adnet Systems Inc., Bethesda, MD 20817, USA
NASA Langley Research Center, Hampton, VA 23681, USA
Liqiao Lei
NASA Langley Research Center, Hampton, VA 23681, USA
Adnet Systems Inc., Bethesda, MD 20817, USA
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Short summary
The term “hotspot” refers to the sharp increase in reflectance occurring when incident (solar) and reflected (viewing) directions coincide in the backscatter direction. The accurate simulation of hotspot directional signatures is important for many remote sensing applications, but current models typically require large values of computations to represent the hotspot accurately. This paper provides a numerically improved hotspot BRDF model that converges much faster and is used in VLIDORT.
The term “hotspot” refers to the sharp increase in reflectance occurring when incident (solar)...
