Results 1 to 10 of about 55,303,286 (181)

Evaluation of Synthetic-Temporal Imagery as an Environmental Covariate for Digital Soil Mapping: A Case Study in Soils under Tropical Pastures

Resources
Digital soil maps are paramount for supporting environmental process analysis, planning for the conservation of ecosystems, and sustainable agriculture.
Fabio Arnaldo Pomar Avalos, Michele Duarte de Menezes, Fausto Weimar Acerbi Júnior, Nilton Curi, Junior Cesar Avanzi, Marx Leandro Naves Silva   +5 more
doaj   +1 more source

Accuracy assessment of open DTM and DSM products in urban environments

Geo-spatial Information Science
The digital terrain model (DTM) and digital surface model (DSM) are fundamental data used in many geospatial applications. There are several global open DTM and DSM products.
Jing Liu, Xia Wang, Dalei Han, Qin Ma, Long Li, Peiqi Yang   +5 more
doaj   +1 more source

Digital surface models derived from historical aerial imagery in highly anthropized areas applied to active fault studies (eastern Betics, Spain)

Geologica Acta
Landform recognition and surface analysis are critical in geomorphological and morphotectonic studies. In particular, the detailed study of the surface expression of active faults is essential for their characterization as seismic sources in fault-based seismic hazard models.
Júlia Molins-Vigatà, Xabier Blanch, Raquel Martín-Banda, David García-Sellés, Octavi Gómez-Novell, Julián García-Mayordomo, Juan Miguel Insua-Arévalo, María Ortuño   +7 more
openaire   +2 more sources

Identifying the Strata of Sago Stands Using Unmanned Aerial Vehicle Data (Case Study: Ambon Island, Maluku, Indonesia)

Journal of Natural Resources and Environmental Management
Manual measurements to estimate the height and diameter of sago stems can be performed directly. However, estimates of height and diameter from land cover using remote sensing or aerial photographic coverage have not been widely featured in articles at ...
Jan Hatulesila, Mardiatmoko Gun, Timisela Wody   +2 more
doaj   +1 more source

A High-Fall Scene Reconstruction Method Based on Prominence Calculation

IEEE Access
A novel method is proposed for reconstructing high-fall scenes in complex urban environments based on prominence maximization, addressing the limitations of traditional UAV tilt photogrammetry.
Min Guo, Haixiao Wang, Mingxing Gao, Hong Bao Du   +3 more
doaj   +1 more source

Vertical accuracy of ASTER, SRTM, and NASADEM digital surface models across Malawi's diverse topography. [PDF]

PLoS One
Nazombe KS, Chunga BA, Bakolo C, Mlewa R, Nhamo G.   +4 more
europepmc   +1 more source

Improved Fusion of Optical Flow and Dead Reckoning for UAV Navigation Using Digital Terrain Models and Data-Driven Velocity Correction. [PDF]

Sensors (Basel)
Walczak J, Targowski P, Chmielewski S, Łeska S, Furtak J.   +4 more
europepmc   +1 more source

Canada1Water digital terrain model with bathymetry dataset. [PDF]

Data Brief
Kessel ED, Frey SK, Russell HAJ.
europepmc   +1 more source

Improving maize LAI estimation by integrating multispectral imagery and digital surface models with ensemble learning. [PDF]

Front Plant Sci
Li W, Lou S, He J, Zhao J, Liu X, Fu G, Pan K, Li T.   +7 more
europepmc   +1 more source

Use of drone-derived high-resolution elevation data to improve species distribution models for a primate in mountainous areas. [PDF]

Conserv Biol
Wen K, Luo Y, Rao Z, Wu A, Song Q, Zhao Y, Lyu Y, Zou Q, Chen M, Niu K, Jiang A, Wang S.   +11 more
europepmc   +1 more source