Resort
Description
|
Resort |
| REmote sensing for Seasonal and Overseas Retrieval of TSM |
| Contact |
Els Knaeps |
Start (End) Date |
01/12/2006
(30/01/2009) |
| Consortium |
2 partners |
Project Coordination |
IMDC |
| Website |
www.resort.vgt.vito.be
(new window) |
Related Projects |
Belcolour I,
Belcolour II,
ORMES, MICAS |
| Keywords |
suspended sediment, hyperspectral, robustness |
Project Objectives
The RESORT project was set up in order to investigate the seasonal and regional robustness of Suspended Particulate Matter (SPM) algorithms. IMDC is interested in this research because a robust algorithm could keep down the costs for fieldwork and could speed up the work.
Methodology
- Regional robustness:
RESORT focused on satellite borne multispectral data to test the regional robustness of the algorithms. Three regions with clearly different morphology were chosen as test sites; the first one is the Scheldt river near Antwerp which is a very dynamic estuarine environment, the second test site is the harbor of Doha, situated in a bay in the Persian gulf. The third test site is the Panama Canal, a man-made Canal in Panama, where measurements are carried out at the moment of a large exchange of fresh water out of the sluice dock and salt ocean water.
- Seasonal robustness:
The seasonal robustness was tested using a hyperspectral airborne dataset and in-situ measurements. An airborne and extensive field campaign were scheduled for the late summer of 2007. This would complement the existing ORMES dataset of June 2005. Additionally water samples were taken and optical measurements were done each month of 2007. The algorithm was set-up on the basis of the in-situ datasets of 2007. These included the monthly measurements at the pontoons and the measurements coincident with the airborne campaign. A regression analysis was performed using the SPM concentrations from the water samples and the ASD measurements which were performed simultaneously.
Linear and exponential relationships were tested, single bands, band combinations, first derivative,.. To test which SPM algorithm is most robust through the seasons a sensitivity analysis was done.
In this analysis it is tested how sensitive an algorithm is to (1) changes in the optical properties of the water body throughout the season and (2) to changes in the CHL and CDOM concentration.
(Expected) Results
We expect to:
- train IMDC in using STK software to determine the suitable time periods of satellite data acquisition for their sites of interest,
- define a TSM retrieval algorithm applicable in different estuarine and coastal environments and in different seasons,
- determine the performance and accuracy limits of this algorithm with taking into account seasonal and regional variability of the optical characteristics of the suspended sediments,
- have close contacts with the end-users in order to familiarize them in the use of remote sensing for TSM mapping and to discuss specific user needs.
Partners
Illustration
Example of a suspended particulate matter (SPM) map of the Scheldt river near Antwerp, Belgium (left)
Example of SPM plumes behind dredging ships in Doha, Qatar (right)
Contact:
Els Knaeps
Tel. + 32 14 33 68 64
Fax + 32 14 32 27 95
Send a message to Els Knaeps
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