Results 131 to 140 of about 167,285 (319)

Convolutional neural networks for mineral prospecting through alteration mapping with remote sensing data [PDF]

open access: yesarXiv
Traditional geological mapping, based on field observations and rock sample analysis, is inefficient for continuous spatial mapping of features like alteration zones. Deep learning models, such as convolutional neural networks (CNNs), have revolutionised remote sensing data analysis by automatically extracting features for classification and regression
arxiv  

Volumetric Super-Resolution of Multispectral Data [PDF]

open access: yesarXiv, 2017
Most multispectral remote sensors (e.g. QuickBird, IKONOS, and Landsat 7 ETM+) provide low-spatial high-spectral resolution multispectral (MS) or high-spatial low-spectral resolution panchromatic (PAN) images, separately. In order to reconstruct a high-spatial/high-spectral resolution multispectral image volume, either the information in MS and PAN ...
arxiv  

Improved LANDSAT to give better view of earth resources [PDF]

open access: yes
The launch data of LANDSAT 3 is announced. The improved capability of the spacecrafts' remote sensors (the return beam vidicon and the multispectral scanner) and application of LANDSAT data to the study of energy supplies, food production, and global ...

core   +1 more source

Integrative taxonomy of the Ceratozamia mexicana Brongn. (Zamiaceae) species complex from a phylogeographic perspective

open access: yesPlant Species Biology, EarlyView.
Recent research has ignited a renewed interest in Ceratozamia cycads, unveiling their remarkable diversity. While previous studies primarily focused on morphology, this investigation employs a multidisciplinary approach, integrating phylogenetics, morphology, and ecological niches. Our methods identify seven distinct lineages as separate species.
Anwar Medina‐Villarreal   +2 more
wiley   +1 more source

Cloud-Net: An end-to-end Cloud Detection Algorithm for Landsat 8 Imagery [PDF]

open access: yesarXiv, 2019
Cloud detection in satellite images is an important first-step in many remote sensing applications. This problem is more challenging when only a limited number of spectral bands are available. To address this problem, a deep learning-based algorithm is proposed in this paper.
arxiv  

State/federal interaction of LANDSAT system and related technical assistance [PDF]

open access: yes
The history of state involvement in LANDSAT systems planning and related efforts is described. Currently 16 states have visual LANDSAT capabilities and 10 others are planning on developing such capabilities.
Tesser, P. A.
core   +1 more source

Comparing the Value of Natural Capital in South Australian Farmland Using Market Sales and Assessed Valuation

open access: yesAustralian Journal of Agricultural and Resource Economics, EarlyView.
ABSTRACT The hedonic valuation method is used to estimate the value of different forms of natural capital (i.e., specifically native vegetation but also soil characteristics, drought, climate and location) on farmland by farm size and industry in South Australia, using agricultural property market sales and assessed value estimates from 2000 to 2013 ...
Maksuda Mannaf   +2 more
wiley   +1 more source

CARE INFRASTRUCTURES IN CHILE DURING THE PANDEMIC: Communitarian Weavings, Spaces and the Production of Common Goods

open access: yesInternational Journal of Urban and Regional Research, EarlyView.
Abstract The article addresses the role that communities played in managing the social and health crisis generated by the Covid‐19 pandemic in two Chilean cities. Chile is an interesting case study owing to its intense and prolonged confinement measures, which focused heavily on individuals and households.
Francisco Letelier Troncoso   +3 more
wiley   +1 more source

Poverty Prediction with Public Landsat 7 Satellite Imagery and Machine Learning [PDF]

open access: yesarXiv, 2017
Obtaining detailed and reliable data about local economic livelihoods in developing countries is expensive, and data are consequently scarce. Previous work has shown that it is possible to measure local-level economic livelihoods using high-resolution satellite imagery.
arxiv  

Allometric Constraint Predominates Over the Acoustic Adaptation Hypothesis in a Radiation of Neotropical Treefrogs

open access: yesIntegrative Zoology, EarlyView.
Male frogs emit calls to attract mates and deter conspecific rivals. The evolution of these calls is thought to be linked to anatomical constraints and the acoustic characteristics of their surroundings. We tested these two factors in a radiation of 112 species of Neotropical treefrogs and found that body size and calling site affect peak frequency but
Moisés Escalona   +17 more
wiley   +1 more source

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