SeaWiFS ocean color data archive and distribution system: assessment of system performance

Acker, James G.; Shen, Suhung; Leptoukh, G.; Serafino, G.; Feldman, Gene C.; McClain, Charles R.

doi:10.1109/36.981352

Cited by 22 publications

(8 citation statements)

References 2 publications

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“…Thus, that aerosol events are at least partly treated as clouds, leading to increased values of CAL, even in cloud free situations. Indeed comparison of CAL images with SeaWIFS (Sea-viewing Wide Field-of-view Sensor) ocean color images [18] and MODIS (Moderate-Resolution Imaging Spectroradiometer) fire images [19] show evidence that aerosol clouds lead to enhanced CAL values even for cloud-free skies. Figures 2 and 3 show respective examples.…”

Section: Resultsmentioning

confidence: 99%

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Towards Optimal Aerosol Information for the Retrieval of Solar Surface Radiation Using Heliosat

2015

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High quality data of surface radiation is a prerequisite for climate monitoring (Earth radiation budget) and solar energy applications. A very common method to derive solar surface irradiance is the Heliosat method, a one channel approach for the retrieval of the effective cloud albedo (CAL). This information is then used to derive the solar surface irradiance by application of a clear sky model. The results of this study are based on radiative transfer modelling, visual inspection of satellite images and evaluation of satellite based solar surface radiation with ground measurements. The respective results provide evidence that variations in Aerosol Optical depth induced by desert storms and biomass burning events lead to a significant increase of the effective cloud albedo, thus, that certain aerosol events are interpreted as clouds by the method. For the estimation of the solar surface radiation aerosol information is needed as input for the clear sky model. As the aerosol effect is partly considered by CAL, there is a need to modify external aerosol information for the use within the clear sky model, e.g., by truncation of high aerosol loads. Indeed, it has been shown that a modified version of the Monitoring Atmospheric Composition and Climate (MACC) aerosol information leads to better accuracy of the retrieved solar surface radiation than the original MACC data for the investigated 9 sites and time period (2006)(2007)(2008)(2009). Further, the assumption of a constant aerosol optical depth of 0.18 provides also better accuracies of the estimated solar surface radiation than the original MACC data for the investigated sites and period. It is concluded that this is partly due to the consideration of scattering aerosols by the effective cloud albedo.Atmosphere 2015, 6 864

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Section: Resultsmentioning

confidence: 99%

“…The pixel value is derived by spatial interpolation and assignment of the respective monthly mean. [18,21] shows clearly a dust storm over parts of the land and ocean (top, yellowish color). The "dust cloud" shows a different texture than the surrounding water clouds.…”

Section: Resultsmentioning

confidence: 99%

Towards Optimal Aerosol Information for the Retrieval of Solar Surface Radiation Using Heliosat

2015

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“…The n L w (555) values were derived from SeaWiFS images. These images were obtained as level 2 (geophysical and biological products) MLAC data with 1 km resolution from DAAC/GSFC/NASA (Acker et al 2002). Daily data were collected from 2 February 1998 to 28 August, 2004.…”

Section: Biophysical Parameter 3: Suspended Solidmentioning

confidence: 99%

“…SeaWiFS images were used to study the chlorophyll-a concentration in surface water. Level 2 (geophysical and biological products) of SeaWiFS merge local area coverage (MLAC) data with 1 km resolution obtained from DAAC/GSFC/NASA (Acker et al 2002). Daily data were collected from 2 February 1998 to 28 August 2004.…”

Section: Biophysical Parameter 1: Sea Surface Temperaturementioning

confidence: 99%

Biophysical models for Japanese scallop, Mizuhopecten yessoensis, aquaculture site selection in Funka Bay, Hokkaido, Japan, using remotely sensed data and geographic information system

Radiarta

Saitoh

2008

Aquacult Int

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Biophysical models for Japanese scallop, Mizuhopecten yessoensis, aquaculture site selection in Funka Bay, Hokkaido, Japan, using remotely sensed data and geographic information system I Nyoman Radiarta AE Sei-Ichi Saitoh Abstract Scallop aquaculture has grown to become the most successful marine shellfish farming venture in Japan. To ensure long-term sustainability of scallop production, suitable sites need to be selected. This study was conducted to identify the most suitable sites for hanging culture of Japanese scallop (Mizuhopecten yessoensis) based on measured biophysical parameters and modeled using geographic information system (GIS) models. Four biophysical parameters that influence Japanese scallop aquaculture in Funka Bay were selected: sea temperature, food availability (chlorophyll-a), suspended solid, and bathymetry. The SeaWiFS and MODIS images were used to extract most of these parameters. A series of GIS models was developed to identify suitable sites for scallop culture using a multi-criteria evaluation (MCE) known as weighted linear combination. Suitability scores were ranked on a scale from 1 (least suitable) to 8 (most suitable), and about 83% of the total potential area with bottom depths less than 60 m had scores of 7 and 8. The final model outputs were compared with field verification data and found to be consistent. Local sensitivity analysis was used to test the robustness of the model output. Based on this analysis, the order of importance of the variables affecting the model was as follows: suspended solid [ chlorophyll-a [ sea temperature.

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“…The data were obtained from National Aeronautics and Space Administration Goddard Space Flight Center Distributed Active Archive Center (NASA GSFC DAAC) [6]. We used monthly averaged Level 3 standard mapped images (SMI) data of SeaWiFS surface chlorophyll calculated at GSFC during reprocessing #5.…”

Section: Methodsmentioning

confidence: 99%

Seasonal and Interannual Variability of Remotely Sensed Chlorophyll

Nezlin

The Handbook of Environmental Chemistry

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SeaWiFS ocean color data archive and distribution system: assessment of system performance

Cited by 22 publications

References 2 publications

Towards Optimal Aerosol Information for the Retrieval of Solar Surface Radiation Using Heliosat

Towards Optimal Aerosol Information for the Retrieval of Solar Surface Radiation Using Heliosat

Biophysical models for Japanese scallop, Mizuhopecten yessoensis, aquaculture site selection in Funka Bay, Hokkaido, Japan, using remotely sensed data and geographic information system

Seasonal and Interannual Variability of Remotely Sensed Chlorophyll

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