SfM-MVS Photogrammetry for Splash Erosion Monitoring under Natural Rainfall
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F21%3A00347409" target="_blank" >RIV/68407700:21110/21:00347409 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1002/esp.5087" target="_blank" >https://doi.org/10.1002/esp.5087</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/esp.5087" target="_blank" >10.1002/esp.5087</a>
Alternative languages
Result language
angličtina
Original language name
SfM-MVS Photogrammetry for Splash Erosion Monitoring under Natural Rainfall
Original language description
An understanding of splash erosion is the basis to describe the impact of rain characteristics on soil disturbance. In typical splash cup experiments, splashed soil is collected, filtered and weighed. As a way to collect additional data, our experiments have been supplemented by a photogrammetric approach. A total of three soils were tested across three sites; one in the Czech Republic and two in Austria, all equipped with rain gauges and disdrometers to measure rainfall parameters. The Structure from Motion-Multi-View Stereo (SfM-MVS) photogrammetric method was used to measure the raindrops impact on the soil surface. The images were processed using Agisoft PhotoScan, resulting in orthophotos and digital elevation models (DEM) with a resolution of 0.1 mm/pix. The surface statistics included the mean surface height (its standard deviation was used as a measure of surface roughness), slope and other parameters. These parameters were evaluated depending on soil texture and rainfall parameters. The results show a linear correlation between consolidation and splash erosion with a coefficient of determination (R2) of approximately 0.65 for all three soils. When comparing the change in soil volume with rainfall parameters, the best correlation was found with the maximum 30-minute intensity (I30) resulting in the R2 0.48 (soil A, silt loam, 26% clay); 0.59 (soil B, silt loam, 18% clay); and 0.68 (soil C, loamy sand, 12% clay). The initial increase in the sample volume for the lowest splashed mass corresponds with the increase in the clay content of each of the soils. Soil A swells the most. Soil B swells less. Soil C does not swell at all, and consolidates the most. We derived the relationship between the photogrammetrically measured change in surface height and the splash erosion (measured by weight) by accounting for the effect of the clay content.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20705 - Remote sensing
Result continuities
Project
<a href="/en/project/GF17-33751L" target="_blank" >GF17-33751L: Kinetic energy of rainfall as driving force of soil detachment and transport</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Earth Surface Processes and Landforms
ISSN
0197-9337
e-ISSN
1096-9837
Volume of the periodical
46
Issue of the periodical within the volume
5
Country of publishing house
US - UNITED STATES
Number of pages
16
Pages from-to
—
UT code for WoS article
000626240400001
EID of the result in the Scopus database
2-s2.0-85102195381