Results 81 to 90 of about 11,247,206 (231)

O sensoriamento remoto aplicado ao estudo da desertificação na região semiárida do norte de Minas Gerais

Revista Brasileira de Geomática, 2014
O fenômeno conhecido como desertificação, resulta da degradação das terras nas zonas áridas, semiáridas e subúmidas secas. É consequência do resultado da pressão antrópica sobre o meio como também das variabilidades climáticas.
Jane Bruna Almeida, Adriana Aparecida Moreira, Fernando Hiago Souza Fernandes, Rodrigo Praes de Almeida, César Vinícius Mendes Nery   +4 more
doaj   +1 more source

Application of digital terrain data to quantify and reduce the topographic effect on LANDSAT data [PDF]

Integration of LANDSAT multispectral scanner (MSS) data with 30 m U.S. Geological Survey (USGS) digital terrain data was undertaken to quantify and reduce the topographic effect on imagery of a forested mountain ridge test site in central Pennsylvania ...
Holben, B. N., Justice, C. O., Wharton, S. W.   +2 more
core   +1 more source

The Potential of Time Series Merged from Landsat-5 TM and HJ-1 CCD for Crop Classification: A Case Study for Bole and Manas Counties in Xinjiang, China

Remote Sensing, 2014
Time series data capture crop growth dynamics and are some of the most effective data sources for crop mapping. However, a drawback of precise crop classification at medium resolution (30 m) using multi-temporal data is that some images at crucial time ...
Pengyu Hao, Li Wang, Z. Niu, Abdullah Aablikim, N. Huang, Shiguang Xu, Fang Chen   +6 more
semanticscholar   +1 more source

Quantifying Cloud-Free Observations from Landsat Missions: Implications for Water Environment Analysis

Journal of Remote Sensing
Since the launch of the Landsat missions, they have been widely employed for monitoring water environments. However, the designed revisiting period of Landsat satellites is 16 days, leading to large uncertainties when tracking long-term changes in water ...
Lian Feng, Xinchi Wang
doaj   +1 more source

Overcoming Limitations with Landsat Imagery for Mapping of Peat Swamp Forests in Sundaland

Remote Sensing, 2012
Landsat can be used to map tropical forest cover at 15–60 m resolution, which is helpful for detecting small but important perturbations in increasingly fragmented forests.
Gopalasamy R. Clements, Lahiru S. Wijedasa, Sean Sloan, Dimitrios G. Michelakis   +3 more
doaj   +1 more source

Application of LANDSAT images to wetland study and land use classification in west Tennessee, part 1 [PDF]

The author has identified the following significant results. densitometric analysis was performed on LANDSAT data to permit numerical classification of objects observed in the imagery on the basis of measurements of optical density.
Jones, N. L., Shahrokhi, F.
core   +1 more source

Uso e cobertura do solo utilizando geoprocessamento em municípios do Agreste de Pernambuco

Revista Brasileira de Meio Ambiente, 2018
As técnicas de Sensoriamento Remoto e ferramentas de geoprocessamento vem contribuindo em diversos estudos sobre o comportamento da cobertura e uso do solo, que auxilia para gestão e monitoramento ambiental.
Débora Natália Oliveira de Almeida, Leidjane Maria Maciel de Oliveira, Ana Lúcia Bezerra Candeias, Ulisses Alencar Bezerra, Antônio Celso de Sousa Leite   +4 more
doaj  

Validating Landsat Analysis Ready Data for Nearshore Sea Surface Temperature Monitoring in the Northeast Pacific

Remote Sensing
In the face of global ocean warming, monitoring essential climate variables from space is necessary for understanding regional trends in ocean dynamics and their subsequent impacts on ecosystem health.
Alena Wachmann, Samuel Starko, Christopher J. Neufeld, Maycira Costa   +3 more
doaj   +1 more source

Korean coastal water depth/sediment and land cover mapping (1:25,000) by computer analysis of LANDSAT imagery [PDF]

Computer analysis was applied to single date LANDSAT MSS imagery of a sample coastal area near Seoul, Korea equivalent to a 1:50,000 topographic map.
Miller, L. D., Park, K. Y.
core   +1 more source

Comparación de NDVI para dos diferentes especies de eucalipto

Pesquisa Agropecuária Gaúcha, 2016
El estudio he llevado a cabo el análisis de la vegetación a partir de la dinámica del NDVI (Normalized Difference Vegetation Index) en Eucalyptus dunnii y Eucalyptus urograndis, comparando el NDVI generado a partir de los números digitales con el ...
Laura Camila de Godoy Goergen, Matheus Nunes Silva, Emanuel Araújo Silva, Rudiney Soares Pereira   +3 more
doaj