Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Martin Detert"'
Autor:
Hamish Biggs, Graeme Smart, Martin Doyle, Niklas Eickelberg, Jochen Aberle, Mark Randall, Martin Detert
Publikováno v:
Water, Vol 15, Iss 21, p 3711 (2023)
The accuracy of discharge measurements derived from surface velocities are highly dependent on the accuracy of conversions from surface velocity us to depth-averaged velocity U. This conversion factor is typically known as the ‘velocity coefficient
Externí odkaz:
https://doaj.org/article/d6db64f511844e80b86f8e8ae06aab43
Publikováno v:
River Research and Applications. 38:1192-1198
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bbfb66ef718fd05a80019c26d8076180
https://doi.org/10.1002/rra.3973
https://doi.org/10.1002/rra.3973
Publikováno v:
Journal of Hydraulic Research. 59:637-650
A new airborne river surface flow measurement technique is presented, called Airborne Feature Matching Velocimetry (AFMV). It uses matchings of characteristic image features for orthorectification ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::37828bd488f5d3efc99e221e903f29a8
https://doi.org/10.1080/00221686.2020.1818309
https://doi.org/10.1080/00221686.2020.1818309
Autor:
Volker Weitbrecht, Martin Detert
Publikováno v:
River Flow 2020 ISBN: 9781003110958
Methods of image-based grain sieving are non-intrusive and low-cost, providing a more efficient way to obtain size distributions for non-cohesive fluvial bed material. This study presents inspirations how to analyze photos that have been taken under
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5c46b7f4696d212724b94784cd66efe2
https://doi.org/10.1201/b22619-146
https://doi.org/10.1201/b22619-146
Autor:
Shin Sugiyama, Marin Kneib, Martin Detert, Guillaume Jouvet, Daiki Sakakibara, Yvo Weidmann, Julien Seguinot
Publikováno v:
Remote Sensing of Environment. 217:389-399
The subglacial hydrology of tidewater glaciers is a key but poorly understood component of the complex ice-ocean system, which affects sea level rise. As it is extremely difficult to access the interior of a glacier, our knowledge relies mostly on th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1778c3e546c1b0fef4b2fa0279ecefbf
https://doi.org/10.1016/j.rse.2018.08.027
https://doi.org/10.1016/j.rse.2018.08.027
Publikováno v:
International Journal of Sediment Research. 33:84-92
This paper presents basic tests to develop an airborne photogrammetric methodology that derives grain size characteristics of gravel bed rivers. The data acquisition was done using a lightweight action cam and a hand-held digital single lens reflex c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a4f8201f763a3415e2a67cbc3a123fdf
https://doi.org/10.1016/j.ijsrc.2018.02.001
https://doi.org/10.1016/j.ijsrc.2018.02.001
Publikováno v:
International Journal of Remote Sensing. 38:2780-2807
This article presents an example for an image-based method to determine a small rivers’ surface velocity field, bathymetry, and its flow discharge derived thereof. While common river measurement techniques typically need to be in contact with the w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::70c8ea747bd5c900d6f76d84831b559a
https://doi.org/10.1080/01431161.2017.1294782
https://doi.org/10.1080/01431161.2017.1294782
Autor:
Martin Detert, Volker Weitbrecht
Publikováno v:
La Houille Blanche. 102:13-17
A low-cost airborne velocimetry system has been developed and tested, consisting of an action cam, a quadrocopter, ground reference points, and seeding material. The obtained video frames were ortho-rectified and geo- referenced by computer vision te
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e8f25f7f4d3b9a4cdcccc73d6506405a
https://doi.org/10.1051/lhb/2016002
https://doi.org/10.1051/lhb/2016002
Publikováno v:
E3S Web of Conferences, Vol 40, p 05030 (2018)
E3S Web of Conferences, 40
E3S Web of Conferences, 40
A new image feature tracking velocimetry is presented and tested on airborne video data available from a previous study at Murg Creek (Canton Thurgau, Switzerland). Here, the seeded flow scenery had been recorded by an off-the-shelf action camera mou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e043696faf3f6a8c1ceb13cd83617435
https://doaj.org/article/a060efbbdb124189a51e8da892b41ad1
https://doaj.org/article/a060efbbdb124189a51e8da892b41ad1
Publikováno v:
E3S Web of Conferences, Vol 40, p 03018 (2018)
E3S Web of Conferences, 40
River Flow 2018-Ninth International Conference on Fluvial Hydraulics
E3S Web of Conferences, 40
River Flow 2018-Ninth International Conference on Fluvial Hydraulics
To design effective and efficient fish passage facilities at hydropower plants, the knowledge of swim behaviour of fish is essential. Therefore, living wild fish were investigated at different fish guidance structures in an experimental flume in a te
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::71a1f7c38e889af43166a500de2cdf1f