Results 21 to 30 of about 1,513,863 (295)

Geographic Information Systems (GIS)-based spatially distributed model for runoff routing [PDF]

open access: yes, 1999
A method is proposed for routing spatially distributed excess precipitation over a watershed to produce runoff at its outlet. The land surface is represented by a (raster) digital elevation model from which the stream network is derived.
Maidment, David, Olivera, Francisco
core   +1 more source

Statistical representation of mountain shading [PDF]

open access: yes, 2004
International audienceShadows cast by the mountains themselves have a strong influence on the surface energy balance of mountainous regions. If the influence of shadows is to be included on sub-grid scales in a surface energy balance model, a statistical
Essery, R
core   +2 more sources

Documentation of Urn Graves of Knovíz Culture by RPAS

open access: yesGeoinformatics FCE CTU, 2016
This paper deals with the documentation, positional determination of urn graves of the Knovíz culture (1200 - 1000 BC), and geometric and positional determination of tumulus at the archaeological site located near the village Ctiněves, in the Usti region
Jaroslav Šedina   +2 more
doaj   +1 more source

Optimization of UAV-Based Imaging and Image Processing Orthomosaic and Point Cloud Approaches for Estimating Biomass in a Forage Crop

open access: yesRemote Sensing, 2022
Forage and field peas provide essential nutrients for livestock diets, and high-quality field peas can influence livestock health and reduce greenhouse gas emissions.
Worasit Sangjan   +2 more
doaj   +1 more source

Including debris cover effects in a distributed model of glacier ablation [PDF]

open access: yes, 2012
Distributed glacier melt models generally assume that the glacier surface consists of bare exposed ice and snow. In reality, many glaciers are wholly or partially covered in layers of debris that tend to suppress ablation rates.
Andersen   +48 more
core   +1 more source

Digital Surface Model Interpolation Based on 3D Mesh Models [PDF]

open access: yesRemote Sensing, 2018
A digital surface model (DSM) is an important geospatial infrastructure used in various fields. In this paper, we deal with how to improve the quality of DSMs generated from stereo image matching. During stereo image matching, there are outliers due to mismatches, and non-matching regions due to match failure.
Soohyeon Kim, Sooahm Rhee, Taejung Kim
openaire   +2 more sources

Forest Height Estimation Approach Combining P-Band and X-Band Interferometric SAR Data

open access: yesRemote Sensing, 2022
Forest height is an essential parameter used to derive important information about forest ecosystems, such as forest above-ground biomass. In this article, a forest height estimation approach combining P-band and X-band interferometric synthetic aperture
Kunpeng Xu   +7 more
doaj   +1 more source

A Comparative Assessment of Multi-Source Generation of Digital Elevation Models for Fluvial Landscapes Characterization and Monitoring

open access: yesRemote Sensing, 2023
Imaging and measuring the Earth’s relief with sensors mounted upon unmanned aerial vehicles is an increasingly frequently used and promising method of remote sensing. In the context of fluvial geomorphology and its applications, e.g., landform mapping or
Paweł Sudra   +3 more
doaj   +1 more source

Redox Mediation at 11-Mercaptoundecanoic Acid Self-Assembled Monolayers on Gold [PDF]

open access: yes, 2006
Cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and digital simulation techniques were used to investigate quantitatively the mechanism of electron transfer (ET) through densely packed and well-ordered self-assembled monolayers ...
Cecchet, Francesca,   +5 more
core   +3 more sources

Vertical accuracy assessment of open access digital elevation models: Bucaramanga-Colombia case study

open access: yesGeodesy and Cartography, 2022
Digital Elevation Models (DEMs), are fundamental data that allow to represent topographic information continuously. They are widely used in various applications such as geoscience, and in the graphical representation of the landscape surface ...
Jhonathan Aponte Saravia
doaj   +1 more source

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