* Corresponding author. L. F. Peres. Email: [email protected], Tel. +55 12 3186 9454, Fax. +55 12 3186 9291 Abstract – In the present work a split-window (SW) algorithm is developed in the framework of Brazilian National Institute for Space Research (INPE)/Center for Weather Forecast and Climatic Studies (CPTEC) in order to derive land-surface temperature from Meteosat Second Generation (MSG...

The paper briefly presents a methodology for mapping surface UV radiation that uses a radiative transfer model and satellite data to quantify the influencing factors. TOMS, TOVS and GOME data are used for the total column ozone. The cloud optical thickness is estimated using METEOSAT/MVIRI data. Other influencing factors taken into account include tropospheric aerosols, snow cover and surface e...

Real-time areal mapping of a volcanic eruption, in terms of its intensity and dynamics, is usually not possible by conventional visual inspection, especially during poor visibility expected in those circumstances (Barberi et al., 1990). In order to monitor ash cloud patterns, aircraft observations have a limited value, due to their nonsystematic nature and inherent hazards for flights within an...

This study reports on the first attempt to use cloud boundary and optical depth retrievals from the GLAS lidar to assess the accuracy of cloud-top heights obtained with MODIS (onboard NASA-TERRA and AQUA) and SEVIRI (onboard METEOSAT-8). Over the period from 25 September to 18 November 2003, MODIS-GLAS coincidences were only found in the Polar Regions, whilst SEVIRI-GLAS coincidences were avail...

In this paper we present a LST product obtained from Advanced Along-Track Scanning Radiometer (AATSR) data. The product has been validated with in situ measurements carried out in the framework of the CarboEurope-Flex-Sentinel-2 (CEFLES2) campaign. In addition the paper present a comparison between the proposed product and the LST retrieved from different sensors as Spinning Enhanced Visible an...

In the framework of the EUMETSAT’s Land Surface Analysis– Satellite Application Facility (LSA–SAF), a method was developed to estimate evapotranspiration (ET) over Europe. The methodology follows a Soil Vegetation Atmosphere Transfer (SVAT) approach. LSA–SAF provides main forcings deduced from Meteosat Second Generation (MSG): visible and infrared surface radiative fluxes and daily surface albe...

Interpolated rain-gauge data were compared to Meteosat-based precipitation estimates for sub-Saharan Africa. Validation was carried out using a dataset from a very dense gauge network in South Africa, on a point-to-pixel (PO–PI) as well as on a pixel-to-pixel (PI–PI) basis. Error criteria computed at the gauged pixels indicate that overall the interpolated estimates perform similarly to the sat...

This presentation is one of the first intercomparisons between vector fields representing atmospheric motions produced by different methods. Several methods extracting dense motion vector fields based mainly on optical flow techniques have been applied to a dataset of Meteosat Second Generation (MSG) images. The resulting vector fields have then been compared to sparse reference atmospheric vec...