Results 31 to 40 of about 968 (174)
LiDAR DTM: artifacts, and correction for river altitudes
Investigaciones Geográficas, Boletín del Instituto de Geografía, 2016 Abstractlidar data provide high-resolution Digital Elevation Models (dems), but some artifacts affect their accuracy and precision. This includes the dems generated by the Mexican National Institute of Statistics and Geography (Instituto Nacional de Estadisitica y Geografia, inegi), especially lidar Digital Terrain Models (dtms) related to the bare ...
Jean-François Parrot +1 more
openaire +3 more sources
Teknik, 2019 The production of Indonesian Topographic Map (RBI) in the scale of 1:5000 takes a long time, especially in the making of contour layer. Contour layer can be extracted from both Aerial Photogrammetry and LiDAR data.
Ayu Nur Safi'i, Prayudha Hartanto
doaj +1 more source
DTM GENERATION WITH UAV BASED PHOTOGRAMMETRIC POINT CLOUD [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017 Nowadays Unmanned Aerial Vehicles (UAVs) are widely used in many applications for different purposes. Their benefits however are not entirely detected due to the integration capabilities of other equipment such as; digital camera, GPS, or laser scanner ...
N. Polat, M. Uysal
doaj +1 more source
Journal of Quaternary Science, EarlyView.ABSTRACT Glaciokarst landscapes pose distinctive challenges for cosmogenic dating because meltwater and runoff can be rapidly rerouted into ponors and conduit networks, weakening glacier–river coupling and promoting local sediment storage. We reconstruct glacier retreat and postglacial stabilization on the Snežnik Plateau (SW Slovenia) using in situ ...
Onur Altınay +6 more
wiley +1 more source
Optimisation of LiDAR derived terrain models for river flow modelling [PDF]
Hydrology and Earth System Sciences, 2009 Airborne LiDAR (Light Detection And Ranging) combines cost efficiency, high degree of automation, high point density of typically 1–10 points per m<sup>2</sup> and height accuracy of better than ±15 cm.
G. Mandlburger +4 more
doaj
People and Nature, EarlyView.Abstract In a time of extensive global biodiversity loss, conservation efforts increasingly rely on high‐resolution, accurate, up‐to‐date habitat maps to guide decision‐making and strategic interventions. Many products have been developed in response, using machine learning (ML) methods to automate habitat classification, often relying on satellite ...
Victoria Webster +7 more
wiley +1 more source
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023 This article addresses the implementation of an above ground biomass (AGB) estimation scheme relying on the height-to-biomass allometry at stand level in the context of the synergistic use of continuous TanDEM-X (bistatic) interferometric synthetic ...
Changhyun Choi +3 more
doaj +1 more source
Permafrost and Periglacial Processes, EarlyView.ABSTRACT Permafrost in northern peatlands occurs within individual palsas or extensive peat plateaus and controls local carbon storage. These permafrost landforms are complex, and their internal structure remains poorly understood. We used quasi‐3D electrical resistivity tomography (ERT) measurements, supported by UAV‐LiDAR topography, frost probing ...
Cas Renette +5 more
wiley +1 more source
Some application with LIDAR data for Fermecatu Islet (Călărasi county, Romania) [PDF]
Scientific Annals of the Danube Delta Institute, 2009 This paper presents some possibilities of applications of the LIDAR data. As a case study is used an islet on the Danube River closed to Calarasi town, Fermecatu islet.
MIERLĂ Marian +2 more
doaj
REVISED PROGRESSIVE MORPHOLOGICAL METHOD FOR GROUND POINT CLASSIFICATION OF AIRBORNE LIDAR DATA
International Journal of Built Environment and Sustainability, 2019 Airborne Light Detection and Ranging (LiDAR) has been very effectively used in collecting terrain information over different scales of area. Inevitably, filtering the non-ground returns is the major step of digital terrain model (DTM) generation and this
Mohd Radhie Mohd Salleh +4 more
doaj +1 more source