Encontrados 5 documentos, a visualizar página 1 de 1
Detecção remota e determinação in situ de parâmetros físicos e micro-biológicos...
Potes, Miguel Joaquim FernandesNeste trabalho procuram estimar-se parâmetros de superfície de águas interiores, designadamente concentração de clorofila e de cianobactérias e turbidez utilizando detecção remota por satélite. Para tal é necessário corrigir os efeitos atmosféricos, tendo sido testado um novo método para obter a reflectância de superfície que por sua vez é relacionada com valores in situ, de modo a estabelecer algoritmos robust...
Nearly 20 years of satellite remote sensing at CGE
Costa, Maria João; Salgueiro, Vanda; Potes, Miguel; Couto, Flavio; Santos, Dina; Bortoli, Daniele; Silva, Ana Maria; Antón, Manuel; Mateus, CarlosThe first steps in satellite remote sensing at CGE were made in 1993, in the first years in close cooperation with the Remote Sensing Division of the Institute of Meteorology. The interest in the study of the atmospheric and surface properties using satellite images was first introduced in CGE by Ana Maria Silva and as a first year Master student, the first author here willingly accepted the challenge of develo...
On the contribution of lakes in predicting near-surface temperature in a global...
Balsamo, Gianpaolo; Salgado, Rui; Dutra, Emanuel; Boussetta, S.; Stockdale, T.; Potes, MiguelThe impact of lakes in numerical weather prediction is investigated in a set of global simulations performed with the ECMWF Integrated Forecasting System (IFS). A Fresh shallow-water Lake model (FLake) is introduced allowing the coupling of both resolved and subgrid lakes (those that occupy less than 50% of a grid-box) to the IFS atmospheric model. Global fields for the lake ancillary conditions (namely lake co...
Satellite remote sensing of water turbidity in Alqueva reservoir and implicatio...
Potes, Miguel; Costa, Maria João; Salgado, RuiThe quality control and monitoring of surface freshwaters is crucial, since some of these water masses constitute essential renewable water resources for a variety of purposes. In addition, changes in the surface water composition may affect physical properties of the lake water, such as temperature, which in turn may impact exchanges with the lower troposphere. The use of satellite remote sensing to estimate w...
Climatologia no apoio à recuperação de um rio temporário da bacia do Guadiana
Potes, Miguel; Salgado, Rui; Pires, Vanda; Pedro, Ana; Morais, ManuelaIn order to generate rehabilitation strategies for temporary Mediterranean river corridors, multidisciplinary studies are needed, including the characterization of past and actual climatic states. In this context, we made a high resolution climatic characterization and a trend analysis of a specific pilot basin, the Pardiela basin in Guadiana basin.
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