Seven years of SeaWiFS and three years of MODIS observation data were used to obtain seasonal and interannual time histories of the major water color producing agents (CPAs), phytoplankton chlorophyll (chl), dissolved organic carbon (doc) and suspended minerals (sm) for Lake Michigan. Correlations of the retrieved CPAs with the coincident environmental observations are established. Episodic eve...

Satellite and in situ observations are used to test model dynamics for the California Current System (CCS). The model and data are combined to reconstruct the mesoscale ocean structure during a given three-week period. The resulting physical flow field is used to drive a 3D ecosystem model to interpret SeaWiFS and in situ chlorophyll-a (chl-a) variations. With this approach a more complete and ...

Current ocean color sensors, for example SeaWiFS and MODIS, are well suited for sampling the open ocean. However, coastal environments are spatially and optically more complex and require more frequent sampling and higher spatial resolution sensors with additional spectral channels. We have conducted experiments with data from Hyperion and airborne hyperspectral imagers to evaluate these needs ...

In this paper, we introduce the usage of a newly developed spectral decomposition technique – combined maximum covariance analysis (CMCA) – in the spatiotemporal comparison of four satellite data sets and groundbased observations of aerosol optical depth (AOD). This technique is based on commonly used principal component analysis (PCA) and maximum covariance analysis (MCA). By decomposing the c...

Subtropical gyre variability as seen from satellites" (2012). NASA Publications. Paper 193. A satellite multi-sensor approach is used to analyse the biological response of open ocean regions of the subtropical gyres to changes in physical forcing. Thirteen years (1998–2010) of Sea-viewing Wide Field-of-view Sensor (SeaWiFS) chlorophyll-a (chl-a) data, combined with concurrent satellite records ...

[1] With a validated Quasi‐Analytical Algorithm, an 11 year (1998–2008) monthly time series of the primary optical properties of waters in the center of the South Pacific gyre was developed from Sea‐viewing Wide Field‐of‐view Sensor (SeaWiFS) and Moderate Resolution Imaging Spectroradiometer (MODIS). Also derived are chlorophyll a (Chl a) concentrations with the operational empirical algorithms...

SeaWiFS chlorophyll and AVHRR SST time series as well as in situ measurements in August 1998 were used to evaluate short-term variability of chlorophyll associated with upwelling events in the western Taiwan Strait. The extent of eutrophic waters (SeaWiFS Chlorophyll41mg=m), colder upwelling waters, and upwelling index were calculated for the western strait and for the northern and southern por...

For the remote sensing of turbid waters, atmospheric correction (AC) is a key issue. The “black pixel” assumption helps to solve AC for waters. It has proved be inaccurate regard all water pixels in SWIR (Short Wave Infrared) band as black pixels. necessary perform visible bands after removing radiation contributions band. Here, modified ACZI (m-ACZI) algorithm was developed. m-ACZI assumes spa...