Total suspended sediment (TSS) algorithm for the ocean color satellite application in the Chesapeake Bay Region

Seunghyun Son, IMSG@NOAA/NESDIS/STAR, seunghyun.son@noaa.gov (Presenter)
Menghua Wang, NOAA/NESDIS/STAR, menghua.wang@noaa.gov

In situ total suspended sediments (TSS) data and the water diffuse attenuation coefficient for the downwelling photosynthetically available radiation measurements in the Chesapeake Bay were obtained from the Chesapeake Bay Program to develop a regional TSS algorithm, as well as for TSS product evaluations. A regional TSS algorithm for the ocean color satellite application has been derived using a relationship relating TSS to the diffuse attenuation coefficient at the wavelength of 490 nm for the Chesapeake Bay. Since the water properties in the Chesapeake Bay are strongly affected by suspended sediments mainly derived from the river discharges and shallow bathymetry, the water diffuse attenuation coefficient could be a good indicator to estimate the suspended sediments. The new regional TSS algorithm was applied to the MODIS-Aqua data using the near-infrared (NIR) and shortwave infrared (SWIR) combined atmospheric correction algorithm in the Chesapeake Bay. Comparison results between MODIS-Aqua-derived and in situ-measured TSS data show that the satellite-derived TSS data are reasonably accurate. Histogram results of the MODIS-derived TSS are well matched with in situ TSS data. Thus, MODIS-Aqua-derived TSS data can be used to study and characterize water properties in the Chesapeake Bay.

Presentation Type:  Poster

Session:  Other   (Wed 10:00 AM)

Associated Project(s): 

• Wang, Menghua: Ocean Color Remote Sensing in the Coastal Regions ...details

Poster Location ID: 255