The use of satellite data to monitor inland water quality in the Amazon basin is investigated. Both floodplain and river main channels are considered using the medium resolution sensors MODIS and MERIS A large database from the HYBAM project gives the water main properties for a large floodplain, 700 km upstream the Amazon river mouth. Parameters measured include the total suspended sediment (T...

The ENVISAT mission with a suite of high performance sensors offers some opportunities for mapping snow cover at regional and catchment scale. The geometric resolution of MERIS data and the spectral resolution of AATSR data are suitable for these purposes. A new approach, developed in the framework of the GLASNOWMAP project (ESA-DUP2) for monitoring snow cover in Alpine regions, based on the co...

The Medium Resolution Imaging Spectrometer (MERIS) is a payload component of Envisat-1. MERIS is operated over land with a standard 15 band setting acquiring images in the VIS and NIR part of the electromagnetic spectrum. Data are acquired at 300 m (full resolution) and 1,200 m (reduced resolution) spatial resolution over land, thus vegetation can be monitored at regional to global scales. The ...

The Medium Resolution Imaging Spectrometer (MERIS) is a payload component of Envisat-1. MERIS is operated over land with a standard 15 band setting acquiring images in the VIS and NIR part of the electromagnetic spectrum. Data are acquired at 300 m (full resolution) and 1200 m (reduced resolution) spatial resolution over land, thus vegetation can be monitored at regional to global scales. Major...

Spectral remote sensing reflectance in the visible (Rrs(λ), sr) was derived from ENVISAT MERIS data over the East China Seas, and compared with those determined from concurrent in situ measurements between 2003 and 2007. The results showed that both the FUB plug-in module and the standard MERIS Level-2 data generally overestimated Rrs(λ), particularly in the blue, while FUB plug-in shows a sign...

This paper discusses the validation of the operational Medium Resolution Imaging Spectrometer (MERIS) land product which corresponds to the biophysical variable of the Fraction of Absorbed Photosynthetically Active Radiation (FAPAR). The FAPAR value acts as an indicator of the presence and state of the vegetation and it is currently estimated from MERIS data at both reduced and full resolution ...

The Medium Resolution Imaging Spectrometer (MERIS) launched in February 2002 on-board the ENVISAT spacecraft is making global observations of top-ofatmosphere (TOA) radiances. Aerosol optical properties are retrieved over land using Look-Up Table (LUT) based algorithm and surface reflectances in the blue and the red spectral regions. We compared instantaneous aerosol optical thicknesses retriev...

Synergetic measurements of MERIS and AATSR onboard ENVISAT are used for the retrieval of cloudtop pressure. As the MERIS cloud-top pressure retrieval algorithm has been proven to produce accurate results in optically thick, single-layered cases ([1]), special attention has been given to multi-layered clouds. An algorithm for the retrieval of the height of multiple cloud layers is presented, rel...

RESUME Observations of oceanic short-period internal waves by MERIS in Full Resolution Level 1b mode are presented and we investigate the capability of the sensor to observe marine film slicks and small scale processes. The radiometric resolution of MERIS imagery is shown to be capable for detection of IWs across the entire swath width of the FR Mode, including for moderate wind speed condition...

The successful launch of ENVISAT in March 2002 has given a great opportunity to understand the changes of water colour with high spatial resolution. In this study, the potential of MERIS sensor to describe variations of optically active substances of Alqueva artificial lake is investigated. Regular in situ measurements, from May 2004 to July 2005, are used in combination with MERIS acquisitions...