COASTAL
- CHRIS will provide high spatial resolution and multi-temporal 'ocean colour' imagery
- All the priority water site will have in-situ sampling (optical and bio-geochemical) during the CHRIS acquisition periods. There will also be:
- sun photometer measurements
- other forms of remote sensing (additional airborne/satellite systems)
- The priority test sites are well characterised and represent a range of Case II waters
- The group will work together to share knowledge/code and also use the sites as a group.
Summary of Experiments
AO's 35 (Sonia Silvestri, University of Venice) and 39 (Vittorio Brando, University of Venice): will be working in the Venice Lagoon and studying the spatial/temporal patterns of Suspended Particulate Matter (SPM) and mapping submerged vegetation. The Venice Lagoon test-site is not the same as the Venice core test-site, which was based on the Venice platform that is around 10-km offshore. A suggested solution was to move the core test-site so that it covered the lagoon, but also had the platform on the edge of the image. A0-35 also includes the installation of a CIMEL sun-photometer in the town centre, but this would probably not be classed as a marine aerosol test-site.
AO's 19 (Kevin Ruddick, MUMM and Hans Van der Woerd, Vrije Universiteit) and 39 (Jaak Monbaliu and Suhyb Salama, K.U.Leuven): will be working at the Ostende test-site and include the mapping of chlorophyll and SPM through in-water optical modelling. This will involve research cruises and so an earlier decision on the acquisition plan is needed.
AO 38 (Peter Gege, DLR): involves the mapping of Lake Constance and the areas of interest spanned the lake, so an image with additional scan lines was suggested (because of the relatively poor pointing accuracy). This suggestion will be analysed further as the used of additional scan lines may not be operationally possible.
AO's 20 and 21 (Samantha Lavender, University of Plymouth): covered the Rame Head and Cyprus Eddy test-sites. Rame Head will be of importance for both the water and aerosol communities and has already been identified as a core test-site. The Cyprus Eddy test-site is related to a funded Framework-V project, cruises aimed at inducing an artificial plankton bloom by adding nitrogen, and is the only clear water (Case I) test-site.
A0 32 (Jean-Paul Hout, ESRIN): involves the characterisation of straylight (in preparation for MERIS) and is not based around a particular test-site, but needs clear (Case I) water with i) broken cloud and (ii) a straight coastline at right angles to the flight direction.
AO 7: To be confirmed.
| Site | AO applicants present | Spatial Resolution | Look angles | Other Details |
|---|---|---|---|---|
| Priority sites | ||||
| Lake Constance | 38 (+ 32) | 17.5 m | 1 nadir | - multi-temporal imagery over 7 day period in Aug/Sep - extra scan lines (+4km) to cover the test site sufficiently |
| Muritz | 7 | 17.5 m | 5 angles | - 4 * 3 days |
| Ostende | 30 + 19 + 11 | 35 m | 5 angles | - 3 * 3 days between mid March and the end of May - 62 wavebands |
| Rame Head | 20 (+ 32) | 17.5 m | 5 angles | - monthly |
| Venice Lagoon | 35 + 39 | 17.5 m | 5 angles | - 5 * 3 days in the following groups: 3 sets in Mar/Jun; 1 set in Sep/Oct; 1 set in Winter |
| Additional sites | ||||
| Cyprus Eddy | 21 (+ 32) | 17.5 m | 5 angles | 1 image in May/Jun |
N.B. AO Proposal 32 is investigating the effects of straylight and could possibly use the test sites
suggested above.
Proposed standard water 18 waveband set:
| Waveband | Reason | Waveband | Reason |
|---|---|---|---|
| 407.5-417.5 | MERIS | 703.75-713.75 | MERIS |
| 435-445 | CIMEL / MERIS | 750-757.5 | Red Tide Index (RTI) |
| 485-495 | MERIS | 760-763.73 | Oxygen |
| 505-515 | MERIS | 777.25-787.5 | MERIS |
| 525-535 | MODIS | 860-880 | CIMEL / MERIS |
| 555-565 | MERIS | 880-890 | MERIS |
| 615-625 | MERIS | 895-905 | CIMEL / MERIS |
| 665-675 | CIMEL / MERIS | 940 | CIMEL |
| 677.5-685 | MERIS FLH | 1020 | CIMEL |
