Spatio-temporal variation of attenuation depths for MODIS in the Bohai Sea

Ying Liu; Guosheng Li

doi:10.1117/12.836330

9 October 2009 Spatio-temporal variation of attenuation depths for MODIS in the Bohai Sea

Ying Liu, Guosheng Li

Proceedings Volume 7471, Second International Conference on Earth Observation for Global Changes; 74710X (2009) https://doi.org/10.1117/12.836330
Event: Second International Conference on Earth Observation for Global Changes, 2009, Chengdu, China

Abstract

By using MODIS data, we investigated the spatial and temporal variation of the attenuation depths (Z₉₀) in the Bohai Sea. While Z₉₀ was highly variable, it increased from the nearshore to the central Bohai Sea. In the Laizhou Bay, Liaodong Bay and Bohai Bay, Z₉₀ was less than 4.5 m, mostly below 3m; while Z₉₀ increased in the northern Bohai Straits, the western Liaodong Bay estuary, and the central Bohai Sea. This spatial pattern has been consistent with the findings reported by several previous studies. Moreover, the wavelength of the maximum Z₉₀ shifted toward longer wavelengths when the water turbidity increased in the Bohai Sea. We also found that the Z₉₀ varied by seasons. The maximum Z₉₀ occurred in summers but the minimum Z₉₀ may be in springs or winters.

Citation Download Citation

Ying Liu and Guosheng Li "Spatio-temporal variation of attenuation depths for MODIS in the Bohai Sea", Proc. SPIE 7471, Second International Conference on Earth Observation for Global Changes, 74710X (9 October 2009); https://doi.org/10.1117/12.836330

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