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Nasa satellite monitoring of water clarity in mobile bay for nutrient criteria development
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Holekamp, Kara Spiering, Bruce A. Blonski, Slawomir |
| Copyright Year | 2009 |
| Description | This project has demonstrated feasibility of deriving from MODIS daily measurements time series of water clarity parameters that provide coverage of a specific location or an area of interest for 30-50% of days. Time series derived for estuarine and coastal waters display much higher variability than time series of ecological parameters (such as vegetation indices) derived for land areas. (Temporal filtering often applied in terrestrial studies cannot be used effectively in ocean color processing). IOP-based algorithms for retrieval of diffuse light attenuation coefficient and TSS concentration perform well for the Mobile Bay environment: only a minor adjustment was needed in the TSS algorithm, despite generally recognized dependence of such algorithms on local conditions. The current IOP-based algorithm for retrieval of chlorophyll a concentration has not performed as well: a more reliable algorithm is needed that may be based on IOPs at additional wavelengths or on remote sensing reflectance from multiple spectral bands. CDOM algorithm also needs improvement to provide better separation between effects of gilvin (gelbstoff) and detritus. (Identification or development of such algorithm requires more data from in situ measurements of CDOM concentration in Gulf of Mexico coastal waters (ongoing collaboration with the EPA Gulf Ecology Division)) |
| File Size | 3446199 |
| Page Count | 13 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20100021234 |
| Archival Resource Key | ark:/13960/t3b044p39 |
| Language | English |
| Publisher Date | 2009-10-26 |
| Access Restriction | Open |
| Subject Keyword | Earth Resources And Remote Sensing In Situ Measurement Gulf of Mexico Dissolved Organic Matter Water Color Time Series Analysis Variability Spectral Bands Vegetation Coastal Water Modis Radiometry Ecology Remote Sensing Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
