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Showing 1 to 20 of 44 for “"AVHRR"”.
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The calculation of cloud parameters from AVHRR data
… Advanced Very High Resolution Radiometer (AVHRR/2) is used as the data acquisition system. The satellite AVHRR system is described, as well as future TIROSN satellites. The pre-launch calibration of the radiometer is described in some detail. Post-launch calibration is examined using a …
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Cloud analysis using NOAA-7 AVHRR multispectral imagery
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric and Planetary Sciences, 1984.
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Remote measurement of aerosol optical properties using the NOAA POES AVHRR during ACE-1, TARFOX and ACE-2
… in the solar wavelengths for the NOAA POES AVHRR is presented for the cloud-free, marine atmosphere. This algorithm combines linearized, single-scattering theory with an estimate of bi-directional surface reflectance. Phase functions are parameterized using an aerosol distribution model and …
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Satellite AVHRR observations of the intensification of the shelf break current during an upwelling event off Vancouver Island
AVHRR satellite imagery during July 1984 was used to investigate the spatial and temporal variability of the shelf break current during an upwelling event off Vancouver Island. The onset of the order 10-day upwelling event initially appears as a plume of cold water at the tip of Brooks Peninsula. …
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Satellite and lagrangian observations of mesoscale surface processes in the southwestern Atlantic Ocean
… of the Advanced Very High Resolution Radiometer (AVHRR) together with high-resolution data from the same sensor and Lagrangian (buoy) data for the period between March 1993 and July 1994. The AVHRR and buoy data were available from the project COROAS (Oceanic Circulation in the Western Region of …
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Analyse de sensibilité des indices de végétation au-dessus d'un couvert forestier de sapin: Étude comparative à partir des données de simulation entre MODIS-EOS, VEGETATION-SPOT and AVHRR-NOAA
… from sensors MODIS-EOS, VEGETATION-SPOT and AVHRR-NOAA to minimize the disturbing effects on the indices of vegetation in forest medium. The results obtained show that in general, the influence of the disturbing effects on the indexes of vegetation are complex. There is not only one component …
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Estimation of catchment flood potential using satellite data
… the Advanced Very High Resolution Radiometers (AVHRR) aboard the NOAA polar orbiters and the synthetic aperture radar (SAR) of the ESA ERS satellites. The system uses data from the SAR to determine soil moisture content (SMC). From observed differences in SMC it is possible to estimate the …
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Respuesta de la vegetación a variaciones climáticas en praderas y sistemas adehesados mediterráneos : metodología de análisis utilizando datos hiperespectrales y multiespectrales = Vegetation reponses to climatic variability in a Mediterranean grassland and savannah : methodologies of analysis using hyperspectral and multispectral data
… de resolución más grosera como por ejemplo AVHRR (Advance Very High Resolution Radiometer) o MODIS (Moderate Resolution Imaging Spectroradiometer). El objetivo de la tesis es la detección de las respuestas de la vegetación, a las variaciones climáticas interanuales utilizando cinco imágenes …
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A Phenological Comparison of NDVI Products within Contiguous United States
… Index (NDVI) products derived from NOAA AVHRR, MODIS, and SPOT VGT sensors. NDVI products from different instruments vary in spatial resolution, temporal coverage and spectral range. As a result, multi-sensor NDVI products are rarely used in a single phenological study. In order to …
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Modeling grassland productivity through remote sensing products
… ETM, Advanced Very High Resolution Radiometer (AVHRR) imagery). Using wavelet analyses, the study first detects that the dominant spatial scale is controlled by topography and thus determines that 20-30 m is the optimum resolution to capture the vegetation spatial variation for the study area. …
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Investigating the potential of remote sensing for long-term limnological analysis at pan-continental scales
… for the purposes of this project. Using NOAA AVHRR, Terra/Aqua MODIS and field data from lakes that represented three main lake groups, the spatial and temporal reliability of 26 existing water quality estimation algorithms was assessed. Following this, the best performing algorithms were …
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Aplicacoes da altimetria topex/poseidon no estudo de aspectos dinamicos do oceano atlantico sul ocidental
… e sinópticos) e imagens termais do sensor AVHRR/NOAA foram utilizados com o objetivo de proporcionar uma comparação com os resultados da altimetria. Características da topografia dinâmica superficial, da variabilidade e anomalias da topografia dinâmica são apresentadas. Imprecisões dos …
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Statistical modelling and variability of the subtropical front, New Zealand
… to detecting and monitoring ocean fronts from AVHRR SST images. Weighted local likelihood is used to provide a nonparametric description of spatial variations in the position and strength of individual fronts within an image. Although we use the new algorithm on AVHRR data it is suitable for …
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Specific applications of satelite remote sensing to the Benguela ecosystem
… high resolution satellite data, from the NOAA AVHRR and OrbView-2 SeaWiFS sensors, to investigate the upper layer dynamics of the Benguela ecosystem in more detailed space and time scales than previously undertaken. The standard for SeaWiFS bio-optical algorithms and processing parameters are …
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A procedure for the computation of sea surface advection velocities from satellite thermal band imagery, with applications to the South East Atlantic Ocean
… surface advection velocities from pairs of NOAA AVHRR infrared images. The procedure was designed for application to the oceanic regions around South Africa and cognisance had to be taken of restrictions imposed by the specific oceanographic conditions, availability of satellite data, as well as …
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Planktonic foraminifera in the sea of Okhotsk : population and stable isotopic analysis from a sediment trap
… Aug. '90 - Aug. '91; 53°19'N, 149°50'E) and AVHRR satellite sea surface temperature data. Synoptic SST's for the deployment ranged between -1.2 and 14.8°C. Two species dominated total yearly foraminiferal flux: N. pachyderma (left) and G. bulloides, with 57% and 31% of yearly flux, …
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Application of optical and infrared remote sensing to the retrieval of selected land and sea features
… of the Advanced Very High Resolution Radiometer (AVHRR) on-board the National Oceanic and Atmospheric Administration's (NOAA) series of satellites. The basis for this work is the Dynamic Water Vapour method developed by Steyn-Ross et al. [1993], Smith [1993]. Two new methods are proposed in this …
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