Results 91 to 100 of about 2,668 (204)

Combined optically stimulated luminescence and radiocarbon dating of aeolian dunes in Arctic Sweden

Permafrost and Periglacial Processes, Volume 35, Issue 2, Page 172-187, April/June 2024.
Abstract Multiple parabolic sand dune fields formed in Arctic Sweden after the last deglaciation, facilitated by an abundance of loose glaciofluvial sediment, limited vegetation cover and strong winds. Following initial stabilisation, these dunes underwent repeated reworking after fire events, as evidenced by the presence of buried soils, charcoal ...
Salome Oehler, Thomas Stevens, Thomas Kolb, Göran Possnert, Markus Fuchs   +4 more
wiley   +1 more source

Optimal Segmentation Scale Parameter, Feature Subset and Classification Algorithm for Geographic Object-Based Crop Recognition Using Multisource Satellite Imagery

Remote Sensing, 2019
Geographic object-based image analysis (GEOBIA) has been widely used in the remote sensing of agricultural crops. However, issues related to image segmentation, data redundancy and performance of different classification algorithms with GEOBIA have not ...
Lingbo Yang, Lamin R. Mansaray, Jingfeng Huang, Limin Wang   +3 more
doaj   +1 more source

From pixels to grixels: a unified functional model for geographic-object-based image analysis [PDF]

, 2008
Geographic Object-Based Image Analysis (GEOBIA) aims to better exploit earth remotely sensed imagery by focusing on building image-objects resembling the real-world objects instead of using raw pixels as basis for classification.
Elsner, Paul, Lizarazo, Ivan
core  

Possibility of spatial estimation of soil erosion using Revised Universal Soil Loss Equation model and generalized additive model in post‐hard coal mining spoil heap

Land Degradation &Development, Volume 35, Issue 3, Page 923-935, 15 February 2024.
Abstract Revegetation and plant cover establishment on coal mining heap areas are effective methods for reducing runoff and soil erosion. They are essential components for reestablishing ecosystems in ecologically vulnerable areas. Our study area covered the Upper Silesia coal region.
Pranav Dev Singh, Anna Klamerus‐Iwan, Paweł Hawryło, Edyta Sierka, Marcin Pietrzykowski   +4 more
wiley   +1 more source

Discrimination of tropical agroforestry systems in very high resolution satellite imagery using object-based hierarchical classification: A case-study in Cameroon [PDF]

, 2014
Tree crops and agroforestry systems are very representative of tropical agricultural landscape. Automatic recognition and mapping of this typical land cover type is thus a challenge for the use of remote sensing in driving issues in food sustainability ...
Alexandre, Cyprien, Dupuy, Stéphane, Lelong, Camille   +2 more
core  

Artificial Intelligence and Objective‐Function Methods Can Identify Bankfull River Channel Extents

Water Resources Research, Volume 60, Issue 1, January 2024.
Abstract Bankfull channel extents are of fundamental importance in fluvial geomorphology, to describe the geomorphic character of a river, and to provide a boundary for further processing of morphologic and hydraulic attributes. With ever‐increasing availability of high‐resolution spatial data (e.g., lidar, aerial photography), manual delineation of ...
Jonathan Garber, Karen Thompson, Matthew J. Burns, Joshphar Kunapo, Geordie Z. Zhang, Kathryn Russell   +5 more
wiley   +1 more source

Dynamic Land Cover Mapping of Urbanized Cities with Landsat 8 Multi-temporal Images: Comparative Evaluation of Classification Algorithms and Dimension Reduction Methods

ISPRS International Journal of Geo-Information, 2019
Uncontrolled and continuous urbanization is an important problem in the metropolitan cities of developing countries. Urbanization progress that occurs due to population expansion and migration results in important changes in the land cover ...
Ugur Alganci
doaj   +1 more source

Assessing land cover changes in the French Pyrenees since the 1940s A semi‐automatic GEOBIA approach using aerial photographs [PDF]

, 2012
International audienceAgro-pastoral landscapes of the Pyrenees are subject to fast spontaneous reforestation. The objective of this work is to assess the spatial patterns of land cover changes during the last 70 years in three study sites of the Pyrenees,
Houet, Thomas, Ladet, Sylvie, Paegelow, Martin, Raynaud, B, Ribière, O, Sheeren, David   +5 more
core   +1 more source

Detecting Invasive Alien Plant Species Using Remote Sensing, Machine Learning and Deep Learning

Journal of Sensors, Volume 2024, Issue 1, 2024.
Invasive alien plants (IAPs) are nonnative species that pose significant threats to the environment by outcompeting native vegetation and disrupting ecosystem functions. Efforts to monitor and eradicate IAPs have been limited due to the challenges in accurately identifying these plants using traditional remote sensing (RS) methods.
Perry B. Rakgoale, Silas Njoya Ngetar, Huan Liu   +2 more
wiley   +1 more source

An OBIA for fine-scale land cover spatial analysis over broad territories: demonstration through riparian corridor and artificial sprawl studies in France [PDF]

, 2012
International audienceSpatial analysis using fine-scale information over broad territories is essential to define efficient restoration strategies from local to national scale.
Barbe, E., Dupuy, S., Kosuth, P., Tormos, T., van Looy, K.   +4 more
core   +1 more source