On the use of unmanned aerial systems for environmental monitoring

S Manfreda, MF McCabe, PE Miller, R Lucas… - Remote sensing, 2018 - mdpi.com
Environmental monitoring plays a central role in diagnosing climate and management
impacts on natural and agricultural systems; enhancing the understanding of hydrological …

Advancements and challenges in rill formation, morphology, measurement and modeling

X Ou, Y Hu, X Li, S Guo, B Liu - Catena, 2021 - Elsevier
Rill erosion is a small-scale but universally occurring phenomenon. Given its potential to
concentrate into larger-scale erosion and its non-negligible contributions to soil loss …

[HTML][HTML] Estimating sheet erosion on purple soil hillslope treated with polyacrylamide (PAM) in the Three Gorges Reservoir area

L Zhang, F Gao, D Liu, L Wang, R Xiang, C Ye… - Journal of Hydrology …, 2023 - Elsevier
Abstract Study region The Three Gorges Reservoir area (TGR), China Study focus Soil
erosion on purple soil hillslope and its negative effects are deleterious to the ecological …

[HTML][HTML] PTV-Stream: A simplified particle tracking velocimetry framework for stream surface flow monitoring

F Tauro, R Piscopia, S Grimaldi - Catena, 2019 - Elsevier
Particle tracking velocimetry (PTV) is a promising image-based approach for remote
streamflow measurements in natural environments. However, most PTV approaches require …

A high-frequency low-cost technique for measuring small-scale water level fluctuations using computer vision

JMGP Isidoro, R Martins, RF Carvalho, JLMP de Lima - Measurement, 2021 - Elsevier
Measuring and monitoring the water depth/level is a key issue when studying free-surface
flows. These tasks are usually expensive in terms of time and money; however, even that …

Flow velocity on cultivated soil slope with wheat straw incorporation

HQ Liu, JH Yang, CX Liu, YF Diao, DP Ma, FH Li… - Journal of …, 2020 - Elsevier
Water flow velocity is of great importance in quantifying overland water flow hydrodynamics,
related to rainfall infiltration, runoff energy, and soil erosion. Mixing the straw into the …

Correction factor for rill flow velocity measured by the dye tracer method under varying rill morphologies and hydraulic characteristics

DM Yang, NF Fang, ZH Shi - Journal of Hydrology, 2020 - Elsevier
Flow velocity is an important parameter for rill erosion process studies. The dye tracer
method is the most widely used method for measuring rill flow velocity, but the influential …

Experimental study on the correction factor of surface overland flow velocity

P Li, K Zhang, Q Xu, X Lv, P Ling, Y Cen, H Shang - Catena, 2022 - Elsevier
The correction factor (α) of surface overland flow velocity is a significant parameter for
determining the mean flow velocity in the study of soil erosion. A series of experiments with …

Estimating Manning's coefficient n for sheet flow during rainstorms

E Shen, G Liu, C Dan, X Chen, S Ye, R Li, H Li… - Catena, 2023 - Elsevier
Many hydrological and soil erosion models employ Manning's coefficient (n) to calculate the
velocity of sheet flow (SF). However, Manning's coefficient of SF cannot be estimated …

A comparative experimental study of rill erosion on loess soil and clay loam soil based on a digital close-range photogrammetry technology

Y Jiang, H Shi, Z Wen, M Guo, J Zhao, X Cao, J Shui… - Geomorphology, 2022 - Elsevier
Accurately describing rill development is important for building physical process models of
soil erosion. The objectives of this study were to investigate the evolution processes of rill …