Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Christian Josef Köppl"'
Autor:
Hongxiao Jin, Christian Josef Köppl, Benjamin M. C. Fischer, Johanna Rojas-Conejo, Mark S. Johnson, Laura Morillas, Steve W. Lyon, Ana M. Durán-Quesada, Andrea Suárez-Serrano, Stefano Manzoni, Monica Garcia
Publikováno v:
Remote Sensing, Vol 13, Iss 10, p 1866 (2021)
Miniature hyperspectral and thermal cameras onboard lightweight unmanned aerial vehicles (UAV) bring new opportunities for monitoring land surface variables at unprecedented fine spatial resolution with acceptable accuracy. This research applies hype
Externí odkaz:
https://doaj.org/article/78c1cf090bd3454abc51b4474e34464d
Autor:
Verónica Sobejano-Paz, Teis Nørgaard Mikkelsen, Andreas Baum, Xingguo Mo, Suxia Liu, Christian Josef Köppl, Mark S. Johnson, Lorant Gulyas, Mónica García
Publikováno v:
Remote Sensing, Vol 12, Iss 19, p 3182 (2020)
During water stress, crops undertake adjustments in functional, structural, and biochemical traits. Hyperspectral data and machine learning techniques (PLS-R) can be used to assess water stress responses in plant physiology. In this study, we investi
Externí odkaz:
https://doaj.org/article/b577ae0eef534c2497373b3aaa77fcb3
Autor:
Sheng Wang, Monica Garcia, Andreas Ibrom, Jakob Jakobsen, Christian Josef Köppl, Kaniska Mallick, Majken C. Looms, Peter Bauer-Gottwein
Publikováno v:
Remote Sensing, Vol 10, Iss 12, p 1978 (2018)
High resolution root-zone soil moisture (SM) maps are important for understanding the spatial variability of water availability in agriculture, ecosystems research and water resources management. Unmanned Aerial Systems (UAS) can flexibly monitor lan
Externí odkaz:
https://doaj.org/article/aa4e7c5b6e2c4163b94429b4d34f2060
Autor:
Stefano Manzoni, Christian Josef Köppl, Ana María Durán-Quesada, Benjamin Fischer, Laura Morillas, Johanna Rojas-Conejo, Steve W. Lyon, Hongxiao Jin, Mark S. Johnson, Andrea Suarez-Serrano, Monica Garcia
Publikováno v:
Remote Sensing; Volume 13; Issue 10; Pages: 1866
Remote Sensing, Vol 13, Iss 1866, p 1866 (2021)
Jin, H, Köppl, C J, Fischer, B M C, Rojas-Conejo, J, Johnson, M S, Morillas, L, Lyon, S W, Durán-Quesada, A M, Suárez-Serrano, A, Manzoni, S & Garcia, M 2021, ' Drone-Based Hyperspectral and Thermal Imagery for Quantifying Upland Rice Productivity and Water Use Efficiency after Biochar Application ', Remote Sensing, vol. 13, no. 10, 1866 . https://doi.org/10.3390/rs13101866
Remote Sensing, vol.13 (10), pp.1-22.
Kérwá
Universidad de Costa Rica
instacron:UCR
Remote Sensing vol.13 no.10 1-22 2021
Repositorio UNA
Universidad Nacional de Costa Rica
instacron:UNA
Remote Sensing, Vol 13, Iss 1866, p 1866 (2021)
Jin, H, Köppl, C J, Fischer, B M C, Rojas-Conejo, J, Johnson, M S, Morillas, L, Lyon, S W, Durán-Quesada, A M, Suárez-Serrano, A, Manzoni, S & Garcia, M 2021, ' Drone-Based Hyperspectral and Thermal Imagery for Quantifying Upland Rice Productivity and Water Use Efficiency after Biochar Application ', Remote Sensing, vol. 13, no. 10, 1866 . https://doi.org/10.3390/rs13101866
Remote Sensing, vol.13 (10), pp.1-22.
Kérwá
Universidad de Costa Rica
instacron:UCR
Remote Sensing vol.13 no.10 1-22 2021
Repositorio UNA
Universidad Nacional de Costa Rica
instacron:UNA
Se seleccionó la licencia Creative Commons para este envío. El documento trae lo siguiente: © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access articledistributed under the terms and conditions of the Creative
Autor:
Laura Morillas, Stefano Manzoni, Mark S. Johnson, Hongxiao Jin, Andrea Suarez-Serrano, Steve W. Lyon, Benjamin Fischer, Monica Garcia, Christian Josef Köppl, Ana María Durán-Quesada, Johanna Rojas-Conejo
Low-cost miniature hyperspectral and thermal cameras onboard lightweight unmanned aerial vehicles (UAV) bring new opportunities for monitoring land surface variables at unprecedented fine spatial resolution with acceptable accuracy. This research app
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2dc45fe6c8312b4c381c391949725f06
https://doi.org/10.20944/preprints202104.0267.v1
https://doi.org/10.20944/preprints202104.0267.v1
Autor:
Poul Løgstrup Bjerg, Ursula S. McKnight, Anders Baun, Lars Michael Skjolding, Peter Bauer-Gottwein, L.vG. Jørgensen, Philipp Mayer, K.S. Dyhr, Christian Josef Köppl
Publikováno v:
Skjolding, L M, Jørgensen, L V G, Dyhr, K S, Köppl, C J, McKnight, U S, Bauer-Gottwein, P, Mayer, P, Bjerg, P L & Baun, A 2021, ' Assessing the aquatic toxicity and environmental safety of tracer compounds Rhodamine B and Rhodamine WT ', Water Research, vol. 197, 117109 . https://doi.org/10.1016/j.watres.2021.117109
Tracer tests represent a well-established method for delineating key environmental processes in various media and engineered systems. Tracers like Rhodamine B and WT are frequently applied due to their strong fluorescence even at low concentrations.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2ff001d2c40e51d4e01f31d44e7b9efc
https://orbit.dtu.dk/en/publications/99d7f8f5-c566-4498-b192-11df8cd0fbd5
https://orbit.dtu.dk/en/publications/99d7f8f5-c566-4498-b192-11df8cd0fbd5
Autor:
Ursula S. McKnight, Peter Bauer-Gottwein, Hongxiao Jin, Radu Malureanu, Rafael Muñoz-Carpena, Sheng Wang, Mark S. Johnson, Ana María Durán-Quesada, Juan M. Serrano Sandí, Monica Garcia, Stefano Barchiesi, Christian Josef Köppl, Carsten Dam-Hansen
Publikováno v:
Köppl, C J, Malureanu, R, Dam-Hansen, C, Wang, S, Jin, H, Barchiesi, S, Serrano Sandí, J M, Muñoz-Carpena, R, Johnson, M, Durán-Quesada, A M, Bauer-Gottwein, P, McKnight, U S & Garcia, M 2021, ' Hyperspectral reflectance measurements from UAS under intermittent clouds : Correcting irradiance measurements for sensor tilt ', Remote Sensing of Environment, vol. 267, 112719 . https://doi.org/10.1016/j.rse.2021.112719
Remote Sensing of Environment, vol.267, pp.1-15
Kérwá
Universidad de Costa Rica
instacron:UCR
Remote Sensing of Environment, vol.267, pp.1-15
Kérwá
Universidad de Costa Rica
instacron:UCR
One great advantage of optical hyperspectral remote sensing from unmanned aerial systems (UAS) compared to satellite missions is the possibility to fly and collect data below clouds. The most typical scenario is flying below intermittent clouds and u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8460ec66ba4d7013e86b7c5825ef25b1
https://orbit.dtu.dk/en/publications/59d27ce9-1438-420d-929f-88cc7d82d4a1
https://orbit.dtu.dk/en/publications/59d27ce9-1438-420d-929f-88cc7d82d4a1
Autor:
Teis Nørgaard Mikkelsen, Andreas Baum, Monica Garcia, Christian Josef Köppl, Veronica Sobejano-Paz, Suxia Liu, Lorant Gulyas, Xingguo Mo, Mark S. Johnson
Publikováno v:
Sobejano Paz, V, Mikkelsen, T N, Baum, A, Mo, X, Liu, S, Köppl, C J, Johnson, M S, Gulyas, L & Garcia, M 2020, ' Hyperspectral and Thermal Sensing of Stomatal Conductance, Transpiration, and Photosynthesis for Soybean and Maize under Drought ', Remote Sensing, vol. 12, no. 19, 3182 . https://doi.org/10.3390/rs12193182
Remote Sensing, Vol 12, Iss 3182, p 3182 (2020)
Remote Sensing; Volume 12; Issue 19; Pages: 3182
Remote Sensing, Vol 12, Iss 3182, p 3182 (2020)
Remote Sensing; Volume 12; Issue 19; Pages: 3182
During water stress, crops undertake adjustments in functional, structural, and biochemical traits. Hyperspectral data and machine learning techniques (PLS-R) can be used to assess water stress responses in plant physiology. In this study, we investi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0fffc39e9a3bea697ef7593996669d75
https://orbit.dtu.dk/en/publications/77fe14ba-7bc3-4305-93f0-a6c4225074b7
https://orbit.dtu.dk/en/publications/77fe14ba-7bc3-4305-93f0-a6c4225074b7
Autor:
Michael Brian Butts, Peter Bauer-Gottwein, Filippo Bandini, Christian Josef Köppl, Inger Klint Jensen, Ole Smith, Johannes Linde, Tanya Pheiffer Sunding
Publikováno v:
Bandini, F, Sunding, T P, Linde, J, Smith, O, Jensen, I K, Köppl, C J, Butts, M & Bauer-Gottwein, P 2020, ' Unmanned Aerial System (UAS) observations of water surface elevation in a small stream : Comparison of radar altimetry, LIDAR and photogrammetry techniques ', Remote Sensing of Environment, vol. 237, 111487 . https://doi.org/10.1016/j.rse.2019.111487
Water Surface Elevation (WSE) is an important hydrometric observation, useful to calibrate hydrological models, predict floods, and assess climate change. However, the number of in-situ gauging stations is in decline worldwide. Satellite altimetry, i
Autor:
Peter Bauer-Gottwein, Sheng Wang, Majken C. Looms, Andreas Ibrom, Jakob Jakobsen, Christian Josef Köppl, Kaniska Mallick, Monica Garcia
Publikováno v:
Remote Sensing, Vol 10, Iss 12, p 1978 (2018)
Wang, S, Garcia, M, Ibrom, A, Jakobsen, J, Köppl, C J, Mallick, K, Looms, M C & Bauer-Gottwein, P 2018, ' Mapping Root-Zone Soil Moisture Using a Temperature-Vegetation Triangle Approach with an Unmanned Aerial System : Incorporating Surface Roughness from Structure from Motion ', Remote Sensing, vol. 10, no. 12, 1978 . https://doi.org/10.3390/rs10121978
Remote Sensing; Volume 10; Issue 12; Pages: 1978
Wang, S, Garcia, M, Ibrom, A, Jakobsen, J, Köppl, C J, Mallick, K, Looms, M C & Bauer-Gottwein, P 2018, ' Mapping Root-Zone Soil Moisture Using a Temperature–Vegetation Triangle Approach with an Unmanned Aerial System: Incorporating Surface Roughness from Structure from Motion ', Remote Sensing, vol. 10, 1978 . https://doi.org/10.3390/rs10121978
Wang, S, Garcia, M, Ibrom, A, Jakobsen, J, Köppl, C J, Mallick, K, Looms, M C & Bauer-Gottwein, P 2018, ' Mapping Root-Zone Soil Moisture Using a Temperature-Vegetation Triangle Approach with an Unmanned Aerial System : Incorporating Surface Roughness from Structure from Motion ', Remote Sensing, vol. 10, no. 12, 1978 . https://doi.org/10.3390/rs10121978
Remote Sensing; Volume 10; Issue 12; Pages: 1978
Wang, S, Garcia, M, Ibrom, A, Jakobsen, J, Köppl, C J, Mallick, K, Looms, M C & Bauer-Gottwein, P 2018, ' Mapping Root-Zone Soil Moisture Using a Temperature–Vegetation Triangle Approach with an Unmanned Aerial System: Incorporating Surface Roughness from Structure from Motion ', Remote Sensing, vol. 10, 1978 . https://doi.org/10.3390/rs10121978
High resolution root-zone soil moisture (SM) maps are important for understanding the spatial variability of water availability in agriculture, ecosystems research and water resources management. Unmanned Aerial Systems (UAS) can flexibly monitor lan