Determinations of Suspended Sediment Concentrations from Multiple Day Landsat and AVHRR Data PDF Download
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Author: J. G. Lyon
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Category :
Languages : en
Pages :
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Author: J. G. Lyon
Publisher:
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Category :
Languages : en
Pages :
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Category : Astronautics in earth sciences
Languages : en
Pages : 590
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Category : Hydrology
Languages : en
Pages : 1296
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Author: Arthur P. Cracknell
Publisher: CRC Press
ISBN: 9780748402090
Category : Technology & Engineering
Languages : en
Pages : 558
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Book Description
Since the launch of the first of the Advanced Very High Resolution Radiometers (AVHRRs) in 1978, the data from these instruments has used for a wide range of non-meteorological applications. In this book, the author describes satellite system, AVHRRs, control of the spacecraft, and data- recovery arrangements. The book covers processing of the data to extract useful environmental information. The applications of the data to marine problems, based primarily on the study of sea-surface temperatures from the thermal-infrared channels of the instrument, are considered, as well as the study of vegetation and a whole variety of other land-based and hydrological applications.
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Category : Estuaries
Languages : en
Pages : 312
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Author: John G Lyon
Publisher: CRC Press
ISBN: 1000798976
Category : Technology & Engineering
Languages : en
Pages : 274
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Volume II of Geospatial Information Handbook for Water Resources and Watershed Management discusses Geospatial Technology (GT) approaches using integrated modeling as applied to advanced water resource assessments. Features include multiple date land cover analyses as change in land cover influences water quality, model sensitivity analyses of DEM resolution and influences on modeling water characteristics like Manning’s n, development of seabed cover classification and sensitivity, and forecasting urban growth over time with climate vulnerability impacts on water. A detailed case study presents a range of water quality issues, all effectively demonstrating GT inputs to water quality studies from headwaters to receiving estuarine waters. Also analyzed are the comparison of evapotranspiration simulation performance by APEX model in dryland and irrigated cropping systems and perspectives on the future of transient storage modeling. Captures advanced technologies and applications for implementation with models to address a broad spectrum of water issues Provides real-world applications and case studies using advanced spectral and spatial sensors combined with geospatially facilitated water process models Features a Neuse River Basin case study integrating hydrologic methods and modeling along with remote sensing and GIS technologies for nonpoint source water quality evaluations Global coverage with applications demonstrated by more than 170 experts from around the world This handbook is a wide-ranging and contemporary reference of advanced geospatial techniques used in numerous practical applications at the local and regional scale and is an in-depth resource for professionals and the water research community worldwide.
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Category : Natural resources
Languages : en
Pages : 856
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Category : Water
Languages : en
Pages : 1310
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Category : Aquatic biology
Languages : en
Pages : 804
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Author: Li Zhang
Publisher:
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Category : Suspended sediments
Languages : en
Pages : 300
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Abstract: Water quality degradation by suspended sediment loading from upland runoff has been identified as a major global problem. The quality of shallow waters in wetlands is particularly vulnerable to human-induced wastes. The Old Woman Creek wetland on the south shore of Lake Erie is a small and shallow tributary. It is the only National Estuarine Research Reserve on the Great Lakes and the only freshwater estuary in the national system. Information on the suspended sediment concentration in Old Woman Creek will help in understanding the function of the estuary in the Great Lakes ecosystem, which has a regional and national significance. This study investigated remote sensing techniques for quantifying suspended sediment concentrations for Old Woman Creek from Landsat-7 Level 1 T products. The geometric performance of the 15 Landsat-7 images was examined and image registration was conducted. The apparent reflectance data of the Landsat-7 images were atmospherically corrected to result in the surface reflectance data. The atmospheric correction is more critical for aquatic environments than for land, since the radiance signal from the water column is small. To improve the accuracy of the atmospheric correction, the atmospheric data products derived from the MODIS Terra satellite were used. The MODIS Terra has instruments under nearly identical atmospheric conditions as the Landsat-7 satellite. The atmospheric data products were used in this study to account for the spatial and temporal variance of water vapor, ozone and aerosols. A regression model was developed to quantify the suspended sediment concentrations (and turbidity) at a sampling station in the Old Woman Creek using the corrected Landsat-7 ETM+ data. Results showed that a strong log-linear relationship exists between the suspended sediment concentration (and turbidity) and the visible green band, which corresponds to the Landsat-7 ETM+ band 2, and the near infrared band, which corresponds to the Landsat-7 ETM+ band 4. The logarithmic equation developed for quantifying turbidity (measured in NTU) is: Ln(Turbidity) = 15.953+2.8994* Ln(B2)+ 1.3880* Ln(B4) with adj. R2=75.1%. The logarithmic equation developed for quantifying suspended sediment concentration (mg/1) is: Ln(SSC) = 14.727+ 2.5228*Ln(B2) +l.3147*Ln(B4) with adj. R2=74.9%. These equations can be used to predict the suspended sediment concentration and turbidity in Old Woman Creek. This study has demonstrated the usefulness of Landsat-7 ETM+ data to quantify the suspended sediment concentration and turbidity in Old Woman Creek. This study also showed the usefulness of the MODIS Terra atmospheric data products for a more accurate atmospheric correction of Landsat-7 imagery for application to water quality studies.
