Results 31 to 40 of about 125,832 (310)

Landsat 5 marks 7th anniversary

Eos, Transactions American Geophysical Union, 1991
For Landsat 5, it will be business as usual today—orbiting the Earth 14 times, gathering data. The remote‐sensing satellite has been following this pattern every day since its launch in 1984. Collectively, it has gone around the Earth more than 37,000 times and collected more than 2.5 million images.Originally planned for a 3‐year orbit, Landsat 5 has ...
openaire   +1 more source

Spatial metrics in fire ecology: seeking consistency amidst complexity

Biological Reviews, EarlyView.
ABSTRACT Technological advances, including remote sensing, have led to a proliferation of metrics used in ecological studies to examine spatial patterns of fire regimes and their ecological effects. Researchers can use many different metrics to analyse spatial variation in both fire events and resulting fire regimes, including fire size, shape ...
Alexander R. Carey, Geoffrey J. Cary, Teigan Cremona, Hugh F. Davies, Brett P. Murphy, Sam C. Banks   +5 more
wiley   +1 more source

Uso de imagens orbitais no geoprocessamento algébrico da microrregião da Campanha Ocidental, Rio Grande do Sul

Floresta e Ambiente
Para analisar a transformação temporal da cobertura e do uso das terras de Campanha Ocidental no Rio Grande do Sul, utilizou-se um mosaico de imagens do satélite LANDSAT 5 (sensor Thematic Mapper), que recobre a região de estudo nos períodos de 1985 ...
Emanuel Araújo Silva, Rudiney Soares Pereira, Caroline Kist da Silva, Laura Camila de Godoy Goergen, Mateus Sabadi Schuh   +4 more
doaj   +1 more source

Mapeamento do saldo de radiação com imagens Landsat 5 e modelo de elevação digital Mapping net radiation using Landsat 5 imagery and digital elevation model

Revista Brasileira de Engenharia Agrícola e Ambiental, 2008
O saldo de radiação é um importante componente do balanço de energia e tem grande relevância em estudos de evapotranspiração em áreas irrigadas e em bacias hidrográficas.
Frederico T. Di Pace, Bernardo B. da Silva, Vicente de P. R. da Silva, Saulo T. A. da Silva   +3 more
doaj   +1 more source

Volume hídrico por processamento digital de imagens de açude público em Sumé, Paraíba

Revista Verde de Agroecologia e Desenvolvimento Sustentável, 2022
A referente pesquisa ressalta a importância da água, enfatizando o conhecimento da quantidade do volume em armazenamento, como uma propositura indispensável, principalmente em regiões onde há irregularidades na quantidade de chuvas e na distribuição ao ...
Maria Paloma Alves dos Santos, José Hugo Simplicio de Sousa, Abdalan Andrade do Nascimento, George do Nascimento Ribeiro, Leonardo Souza do Prado Júnior, Jose Nunes de Oliveira Neto   +5 more
doaj   +1 more source

Satellite hindcasts of foliar traits reveal a subtle but consistent relaxation of conservativeness in a biodiverse mountain grassland over the last four decades

Ecography, EarlyView.
Projected warming and drying raise concerns about the resilience of stress‐adapted ecosystems, including the Brazilian Campo Rupestre, an exceptionally biodiverse mountaintop grassland mosaic on ancient, nutrient‐poor substrates. Here, we combine field‐based trait data and long‐term remote sensing to assess the functional structure and temporal ...
Renata Maia, Milton Barbosa, Daniel Negreiros, Geraldo Wilson Fernandes, Yadvinder Malhi, Jesus Aguirre‐Gutiérrez   +5 more
wiley   +1 more source

Vegetation on the move: elevational shifts and greening dynamics across the Himalayan alpine zone

Ecography, EarlyView.
This study investigates alpine ‘vegetation line' (the upper limit of continuous plant community) dynamics in the Himalayan alpine zone (HAZ) over a 24‐year timescale (1999–2022) using maximum NDVI products derived from Landsat series datasets, adjusted for sampling bias using phenological modelling.
Ruolin Leng, Stephan Harrison, Dominic Fawcett, Achyut Tiwari, Mike Harrison, Karen Anderson   +5 more
wiley   +1 more source

Water Body Distributions Across Scales: A Remote Sensing Based Comparison of Three Arctic Tundra Wetlands [PDF]

, 2013
Water bodies are ubiquitous features in Arctic wetlands. Ponds, i.e., waters with a surface area smaller than 104 m2, have been recognized as hotspots of biological activity and greenhouse gas emissions but are not well inventoried.
Abnizova, Anna, Boike, Julia, Heim, Birgit, Muster, Sina   +3 more
core   +2 more sources

Harnessing the power of machine and deep learning for transferring joint species distribution models considering the structure of biotic interactions

Ecography, EarlyView.
The transferability of single or joint species distribution models ((j)SDMs) depends on their ability to predict beyond the observed environmental range and to remain consistent despite shifts in biotic interactions. Transfer accuracy may be improved by recent advances in the application of deep learning that provide greater flexibility and potentially
Marco Basile, Maximilian Pichler, Francesco Valerio, Lorenzo Balducci, Francesco Chianucci, Sérgio Godinho, Francesco Rota, Frédéric Archaux, Christophe Bouget, Gediminas Brazaitis, Thomas Campagnaro, Ettore D'Andrea, Luc De Keersmaeker, Wouter Dekoninck, Pallieter De Smedt, Zoltán Elek, Itziar García‐ Mijangos, Frédéric Gosselin, Marion Gosselin, Andrin Gross, Elena Haeler, Sebastian Kepfer‐ Rojas, Nathalie Korboulewsky, Daniel Kozák, Thibault Lachat, Carlos Miguel Landivar Albis, Anja Leyman, Xiang Liu, Anders Mårell, Radim Matula, Martin Mikoláš, Péter Ódor, Yoan Paillet, Kastytis Šimkevičius, Tommaso Sitzia, Silvia Stofer, Nicolas Strebel, Miroslav Svoboda, Flóra Tinya, Mariana Ujházyová, Kris Vandekerkhove, Kris Verheyen, Michael Wohlwend, Fotios Xystrakis, Sabina Burrascano   +44 more
wiley   +1 more source

Impacts of Social Assistance During the COVID‐19 Pandemic in Poor Remote Communities

Journal of International Development, EarlyView.
ABSTRACT Providing social assistance to poor populations in remote communities in times of crises, such as pandemics, is challenging but crucial. This paper examines how food assistance during the COVID‐19 pandemic affected people's behaviour, using our surveys among over 400 rural communities without road access in the Peruvian Amazon. Food assistance
Yoshito Takasaki, Oliver T. Coomes, Christian Abizaid   +2 more
wiley   +1 more source