| title: | Development of the remote sensing methods for investigation of optically multicomponental waters in Estonia |
|---|---|
| reg no: | ETF6814 |
| project type: | Estonian Science Foundation research grant |
| subject: |
1.4. Astronomy 1.16. Marine Sciences and Limnology 2.14. Environmental Engineering |
| status: | accepted |
| institution: | Tartu Observatory |
| head of project: | Anu Reinart |
| duration: | 01.01.2006 - 31.12.2009 |
| description: | Application of remote sensing system is a very time consuming procedure as the techniques and methods need to prove its value in local and specific conditions. Standard products of ocean colors sensors SeaWiFS and MODIS, do not work in the Baltic Sea and inland waters. The reasons behind this phenomenon are (1) the improper type of predefined atmospheric aerosols; (2) the failure of atmospheric correction procedures due to high water leaving signal in near-infrared part of spectrum in turbid water; (3) high amount of colored dissolved organic matter in the humic water. MERIS/Envisat-1 (ESA), is an instrument which specifically addresses the need of optically complex waters in the coastal zones. However its algorithms are presently tested only for range of optically active substances, which are commonly much lower than could be found in Estonian costal waters and lakes. The main aim of the presented project is to combine theoretical basis and appropriate modeling techniques with local specific environmental characteristics to derive water quality parameters from remote sensing data over optically complex waters. Atmospheric correction methods will be optimized, using accurate atmospheric-ocean radiative transfer codes according to local aerosol and water optical data. We will develop algorithms and validate remote sensing products by sensors MERIS, MODIS and SeaWifs over Baltic Sea coastal areas and large lakes. Strongest interest will be placed on MERIS sensor as it is specially designed for coastal applications and should allow monitoring not only coastal waters and large lakes, but additionally 15 smaller lakes in Estonia. As a final result, combined method will be elaborated (including acquisition, archiving, processing, distribution) for application satellite based remote sensing and therefore improve technology for monitoring aquatic environment. |
| project group | ||||
|---|---|---|---|---|
| no | name | institution | position | |
| 1. | Olavi Kärner | |||
| 2. | Anu Reinart | Tartu Observatoorium | ||
| 3. | Hilda Teral | |||