Results 101 to 110 of about 64,924 (280)

Análise temporal e cálculo de áreas construídas usando método BAEM a partir de imagens de sensoriamento remoto

Coleção Estudos Cariocas
O presente estudo trata da análise temporal e cálculo de áreas construídas usando o método BAEM. Como fonte de dados, foram utilizadas imagens do sistema de satélite Landsat 8 do Parque Estadual da Serra da Tiririca, em Niterói, Rio de Janeiro, Brasil ...
Sonia Maria Lima Silva, Elisângela Silva de Paula, Luiz Carlos Teixeira Coelho Filho   +2 more
doaj   +1 more source

Purge Systems for LDCM and Contamination Instruments Projects [PDF]

, 2010
The presentation includes: Contamination Overview, Introduction to tools and techniques, Overview on Landsat 8 (LDCM), Tools, Techniques, Works Cited, Special Thanks.
Orellana, Janet, Rivera, Rachel
core   +1 more source

Wall‐to‐wall Amazon forest height mapping with Planet NICFI, Aerial LiDAR, and a U‐Net regression model

Remote Sensing in Ecology and Conservation, EarlyView.
Tree canopy height is a key indicator of forest biomass and structure, yet accurate mapping across the Amazon remains challenging. Here, we generated a canopy height map of the Amazon forest at ~4.8 m resolution using Planet NICFI imagery and a deep learning U‐Net model trained with airborne LiDAR data.
Fabien H. Wagner, Ricardo Dalagnol, Griffin Carter, Mayumi C. M. Hirye, Shivraj Gill, Le Bienfaiteur Sagang Takougoum, Samuel Favrichon, Michael Keller, Jean P. H. B. Ometto, Lorena Alves, Cynthia Creze, Stephanie P. George‐Chacon, Shuang Li, Zhihua Liu, Adugna Mullissa, Yan Yang, Erone G. Santos, Sarah R. Worden, Martin Brandt, Philippe Ciais, Stephen C. Hagen, Sassan Saatchi   +21 more
wiley   +1 more source

Burn Area Detection Using Landsat 8 OLI TIRS

IOP Conference Series: Earth and Environmental Science, 2019
Abstract Fires associated with land use conversion activities such as agricultural expansion, palm and pulp plantations, peat land alteration, and industrial deforestation are significant in Indonesia (Jerrod & Alex, 2015). Fires season in 2015 is one of the worst incident in Indonesia since 1997, it made Indonesia at the second ...
Satria Indratmoko, Nurrokhmah Rizqihandari   +1 more
openaire   +1 more source

Improving forest age estimation to understand subtropical forest regrowth dynamics using deep learning image segmentation of time‐series historical aerial photographs

Remote Sensing in Ecology and Conservation, EarlyView.
Accurately estimating forest age is key to understanding how forests recover and evaluating restoration success. We developed a two‐step deep learning approach using historical greyscale aerial photographs to map forest age at fine spatial scales. By combining a pre‐trained model with localized fine‐tuning, our U‐Net + ResNet50 architecture achieved ...
Ying Ki Law, Yi‐Fei Gu, Shuwen Liu, Guangqin Song, Aland H. Y. Chan, Cham Man Tse, Zhonghua Liu, Martha J. Ledger, Billy C. H. Hau, Sawaid Abbas, Jin Wu   +10 more
wiley   +1 more source

Monitoring Near-Shore Bathymetry Using a Multi-Image Satellite-Derived Bathymetry Approach [PDF]

, 2015
Two advanced survey systems for hydrographic surveying are multi-beam echsounder (MBES) and airborne lidar bathymetry (ALB). Compared to more traditional hydrographic surveying methods, these systems provide both highly accurate and a dense coverage of ...
Alexander, Lee, Freire, Ricardo, Lippmann, Thomas C., Madore, Brian, Parrish, Christopher, Pe\u27eri, Shachak, Rzhanov, Yuri   +6 more
core   +1 more source

Using phenology to improve invasive plant detection in fine‐scale hyperspectral drone‐based images

Remote Sensing in Ecology and Conservation, EarlyView.
Using drone‐based hyperspectral images of mixed temperate successional forests collected over a growing season, detection algorithms were produced for three invasive species of interest, which are not only invasive in Virginia but also much of the U.S.: Ailanthus altissima (tree of heaven), Elaeagnus umbellata (autumn olive), and Rhamnus davurica ...
Kelsey S. Huelsman, Howard E. Epstein, Xi Yang, Roderick Walker   +3 more
wiley   +1 more source

‘Using anuran community diversity and Pseudacris crucifer to predict landscape quality across a land use gradient'

Wildlife Biology, EarlyView.
As human‐modified landscape and climate changes proliferate, maintaining biodiversity and understanding the function and quality of available habitat is imperative. As anurans (frogs/toads) such as Pseudacris crucifer, can be an indicator species of habitat quality and ecosystem productivity, studying the anuran community in a mixed‐land use region ...
Brian C. Kron, Karen V. Root
wiley   +1 more source

On-Orbit Radiometric Performance of the Landsat 8 ThermalInfrared Sensor

Remote Sensing, 2014
The Thermal Infrared Sensor (TIRS) requirements for noise, stability, and uniformity were designed to ensure the radiometric integrity of the data products.
Matthew Montanaro, Raviv Levy, Brian Markham   +2 more
doaj   +1 more source

Penajaman Citra Satelit Landsat 8 Menggunakan Transformasi Brovey

Majalah Ilmiah Teknologi Elektro, 2019
Intisari— Penajaman citra adalah teknik optimasi citra dengan cara mengkombinasi dua citra satelit dengan mengambil kelebihan yang dari tiap citra sehingga citra output memiliki kualitas spektral dan spasial yang baik. Penajaman citra dilakukan sebagai alternative untuk memudahkan pengenalan suatu objek, terlebih lagi untuk satelit Landsat mempunyai ...
Rukmi Sari Hartati, I Made Oka Widyantara, I Made Dhanan Pradipta   +2 more
openaire   +2 more sources