- Tytuł:
- Revisiting the role of oceanic phase function in remote sensing reflectance
- Autorzy:
-
Freda, W.
Piskozub, J. - Powiązania:
- https://bibliotekanauki.pl/articles/48003.pdf
- Data publikacji:
- 2012
- Wydawca:
- Polska Akademia Nauk. Instytut Oceanologii PAN
- Tematy:
-
marine optics
remote sensing
scattering
backscattering
volume scattering function
angular variation
scattering light intensity
inherent optical property
sea surface
solar radiation
angular distribution - Opis:
- The effect of angular structure differences between measured and best-fit analytical phase functions of the equivalent backscattering ratio on calculated reflectance values was studied and shown to be significant. We used a Monte Carlo radiative transfer code to check the effect of choosing different analytical (several Fournier- Forand (1994) and Henyey-Greenstein (1941)) phase functions with backscattering ratios identical to the ‘classical’ average Petzold function. We show that the additional variability of the resulting water leaving radiance is about 7% (4% between the Fournier-Forand functions themselves) for most scenarios. We also show a previously unknown maximum of the discrepancy (up to 10%) for highly scattering waters. We discuss the importance of relative differences in phase function for different angular ranges to this maximum and to the behaviour of the discrepancy as a function of solar zenith angle.
- Źródło:
-
Oceanologia; 2012, 54, 1
0078-3234 - Pojawia się w:
- Oceanologia
- Dostawca treści:
- Biblioteka Nauki
Artykuł