Sensors And Remote Sensing Techniques
Mostrando 1-12 de 15 artigos, teses e dissertações.
-
1. Estudo com sensores para a mensuração de falhas nas fileiras de cana-de-açucar (Sacchararum SSP.) / Study with sensors for measuring gaps in the rows of sugar cane (Saccharum ssp.)
Brazil is the world\ s largest producer of sugarcane and has a booming market. Because of the productive potentiality and profitability of sugarcane the interest in site specific management techniques and demand for new technologies are increasing. Therefore this project aims to study options of sensors for measurement and georeferencing of failures, explori
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/09/2011
-
2. Sensoriamento remoto aplicado na analise da cobertura vegetal das reservas de desenvolvimento sustentavel Amana e Mamiraua / Remote sensing applied in vegetation analysis of Amana and Mamiraua sustainable-use protected areas
The knowledge of the Amazon biodiversity, especially that related to its vegetation cover, has been the subject of several studies involving the investigation of its ecological-evolutional processes and its dynamics as an integrated and complex set of biological units. The development of Remote Sensing technologies and methodologies is becoming increasingly
Publicado em: 2008
-
3. Caracterização fisica de ambientes carsticos atraves de sensoriamento remoto e SIG : o caso do Parque Nacional Cavernas do Peruaçu - Januaria/ Itacarambi, MG / Characterization of karstic environments by means of remote sensing and GIS : the case of Cavernas do Peruaçu National Park, Januaria/ Itacarambi, Minas Gerais State, Brazil
This dissertation deals with the characterization of karstic environments through the use of remote sensing and GIS techniques, using as a case study the Cavernas do Peruaçu National Park, located in Januária and Itacarambi counties, Minas Gerais State, Brazil. The selection of this area was due to its relevance in terms of the speleological, archeological
Publicado em: 2007
-
4. Hydrothermal alteration of the Cerro La Mina gold prospect, Los Menucos, Patagonia Argentina : geology, remote sensing and stable isotopes / Alteração hidrotermal do prospecto aurifero Cerro La Mina, Los Menucos, Patagonia Argentina : geologia , sensoriamento remoto e isotopos estaveis
The epithermal Cerro La Mina prospect, located in the Los Menucos region, Patagonia Argentina, is currently being explored for epithermal precious-metal mineralization. Triassic hydrothermal activity produced intense alteration of rhyolites, andesites, ignimbrites, and tuffs of the Middle- to Late Triassic Los Menucos Group, in the Somún Curá massif. The u
Publicado em: 2007
-
5. Sensoriamento remoto e geoprocessamento na caracterização e avaliação pontual e espacial de solos e seus atributos / Remote sensing and geoprocessing on punctual and spatial characterization and evaluation of soils and their attributes
The necessity of new techniques to obtain information about soil and its attributes, in a faster and cheaper form, turns remote sensing and geoprocessing into important options. These techniques allow the analysis of a great amount of data at the same time and associate spectral information with other environmental variables such as geology and relief. The o
Publicado em: 2006
-
6. TÃcnicas de Sensoriamento Remoto para Monitoramento Ambiental com AplicaÃÃes em Recursos Pesqueiros no AtlÃntico Tropical / Techniques of Remote Sensing for Environmental Monitoring with Applications in the Atlantic Tropical Fishing Resources
In this work we studied, from data obtained from sensors on board satellites, monthly and seasonal patterns of physical and biological parameters on the Tropical Atlantic, the area between the latitudes 30 Â N - 30 Â S and longitudes 80 Â W - 5 Â E. The physical environment (temperature of the sea surface, measured by the sensor VHRR and wind, measured b
Publicado em: 2005
-
7. Monitoring and characterization of areas submitted to logging in amazonia by change-detection techniques / Monitoramento e caracterização de áreas submetidas à exploração florestal na amazônia por técnicas de detecção de mudanças
Selective logging has been affecting extensive areas of primary forests in Amazonia. This activity, when practiced in a predatory way, causes severe environmental impacts such as erosion and soil compaction, increased carbon emissions, increased forest-fire susceptibility and increased risk of local species extinction. Monitoring logging activity is fundamen
Publicado em: 2004
-
8. Characterization of vegetation physiognomies in earstern Amazonon region through airbone videography and landsat 7 ETM + images / Caracterização de fisionomias vegetais na Amazônia Oriental através de videografia aerotransportada e imagens landsat 7 ETM+
Transformation of multispectral remote sensing data is needed for compression of data volume and for the inference of biophysical properties of the land cover. Linear Spectral Mixing Models (LSMM) and Normalized Difference Vegetation Index (NDVI) are transformations that result in indicators of vegetation structure. However these methods present limitations
Publicado em: 2003
-
9. Restauração de imagens do satélite Landsat-7. / Restoration of LANDSAT-7 satellite images.
The techniques of image restoration are oriented for the modeling of the degradation and recovery of the original signal that was degraded during the process of image formation. In Remote Sensing, sensor?s nominal spatial resolution, that defines the precision with which details of objects of interest in the image are perceivable, is one of the most importa
Publicado em: 2003
-
10. Assinaturas espectrais de gossans associados a mineralizações de Pb-Zn-Ba na Bacia de Irece (BA) : um estudo baseado em dados de sensores TM e ASTER
The aim ofthis work was to develop strategies for detection ofgossans associated to Pb-Zn-Ba deposits in the Irece basin (BA), as well as their distinction ftom generic laterites, using remote sensing data and techniques. Samples of gossans collected in the study area were analysed by reflectance spectroscopy methods, using a high resolution FieldSpec FR spe
Publicado em: 2003
-
11. Comparação entre imagens pancromaticas do satelite Ikonos-II e Landsat/ETM + na identificação de plantios de cafe (Coffea arabica)
The use of orbital remote sensing and geoprocessing techniques represents significant advance for agriculture data surveying, considering its multispectral feature and repetitiveness. Its application for crop monitoring becomes more important, mainly with the possibility of using the sensors of high spatial, spectral, temporal and radiometric resolution. Thi
Publicado em: 2002
-
12. Modelo exploratorio para depositos auriferos do tipo Morro do Ouro com base em dados e tecnicas de sensoriamento remoto
A method for the identification of metallotects related to Morro do Ouro-type gold deposits (DTMO) is proposed, based on remote sensing data and techniques. Samples from this type of deposit, collected at Paracatu (Minas Gerais State) and Luziânia (Goiás State), were studied through reflectance spectroscopy and petrography. The results showed that iron oxi
Publicado em: 2000