Results 91 to 100 of about 81,623,271 (323)

Detecting the Lava Flow Deposits From 2018 Anak Krakatau Eruption Using Data Fusion LANDSAT-8 Optic and Sentinel-1 SAR [PDF]

open access: yes, 2018
The increasing volcanic activity of Anak Krakatau volcano has raised concerns about a major disaster in the area around the Sunda Strait. The objective of the research is to fuse Landsat-8 OLI (Operational Land Imager) and Sentinel-1 TOPS (Terrain ...
Jalu Tejo Nugroho   +9 more
core   +1 more source

Late Quaternary lake filling and drying in northern Australia's largest freshwater lake

open access: yesJournal of Quaternary Science, EarlyView.
ABSTRACT Lake Woods, Jurrkulu, is northern Australia's largest freshwater lake filled today in strong Indo–Australian summer monsoons (IASM) to maximum depths of ~5 m. On the western margins of the lake, two large arcuate ridges occur 20 to 40 m above the lake floor and inset within these are other mid‐elevation lake deposits, such as depositional ...
Tim J. Cohen   +14 more
wiley   +1 more source

Fractures models comparison using GIS data around crater lakes in Cameroon volcanic line environment

open access: yesEgyptian Journal of Remote Sensing and Space Sciences, 2021
This study assesses the contribution of Landsat 7 ETM + and Landsat 8 OLI images to observe existing fractures and faults of at least 12 km in length around the lakes Nyos, Monoun and Oku whose are three major crater lakes in the Cameroon Volcanic Line ...
Marthe Mbond Ariane Gweth   +4 more
doaj   +1 more source

High-resolution mapping of forest canopy height using machine learning by coupling ICESat-2 LiDAR with Sentinel-1, Sentinel-2 and Landsat-8 data

open access: yesInternational Journal of Applied Earth Observation and Geoinformation, 2020
Forest canopy height is an important indicator of forest carbon storage, productivity, and biodiversity. The present study showed the first attempt to develop a machine-learning workflow to map the spatial pattern of the forest canopy height in a ...
Wang Li   +5 more
semanticscholar   +1 more source

Landscape drivers of scaled quail occurrence across a broad spatiotemporal scale: implications for habitat management

open access: yesThe Journal of Wildlife Management, EarlyView.
Combining large‐scale avian surveys with remote sensing products revealed landscape variables that likely limit scaled quail occurrence at the ecoregion scale in Texas. Promoting management practices that address ecoregion‐specific limiting factors may be key to averting further declines.
Benjamin W. Hoose   +5 more
wiley   +1 more source

Evaluation of Methods for Estimating Lake Surface Water Temperature Using Landsat 8

open access: yesRemote Sensing, 2022
Changes in lake water temperature, observed with the greatest intensity during the last two decades, may significantly affect the functioning of these unique ecosystems.
K. Dyba   +4 more
semanticscholar   +1 more source

Landsat-8 Operational Land Imager Design, Characterization and Performance [PDF]

open access: yesRemote Sensing, 2014
The Operational Land Imager (OLI) on Landsat-8 represents a generational change from heritage Landsat instruments in its design, while it maintains data continuity with the 40+ year Landsat data archive. It preserves the 30-m ground sample distance, 185-km swath width and VIS/NIR/SWIR spectral bands.
Knight, Edward, Kvaran, Geir
openaire   +2 more sources

Cutting through the noise: What can habitat selection modeling teach us about caribou‐fire space use dynamics?

open access: yesThe Journal of Wildlife Management, EarlyView.
We synthesize the current knowledge regarding caribou habitat selection in relation to wildfires. Caribou responses to recent burns were generally weak and highly variable across subspecies or ecotypes, suggesting that post‐fire habitat selection is likely context‐dependent and the need for regionally adapted habitat management strategies.
Geneviève É. Degré‐Timmons   +9 more
wiley   +1 more source

High-Resolution Vegetation Mapping in Japan by Combining Sentinel-2 and Landsat 8 Based Multi-Temporal Datasets through Machine Learning and Cross-Validation Approach

open access: yesLand, 2017
This paper presents an evaluation of the multi-source satellite datasets such as Sentinel-2, Landsat-8, and Moderate Resolution Imaging Spectroradiometer (MODIS) with different spatial and temporal resolutions for nationwide vegetation mapping.
Ram C. Sharma   +2 more
doaj   +1 more source

Deforestation Detection with Fully Convolutional Networks in the Amazon Forest from Landsat-8 and Sentinel-2 Images

open access: yesRemote Sensing, 2021
The availability of remote-sensing multisource data from optical-based satellite sensors has created new opportunities and challenges for forest monitoring in the Amazon Biome.
D. L. Torres   +6 more
semanticscholar   +1 more source

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