Zobrazeno 1 - 10
of 615
pro vyhledávání: '"D. Hafner"'
Autor:
E. D. Hafner, T. Kontogianni, R. Caye Daudt, L. Oberson, J. D. Wegner, K. Schindler, Y. Bühler
Publikováno v:
The Cryosphere, Vol 18, Pp 3807-3823 (2024)
For many safety-related applications such as hazard mapping or road management, well-documented avalanche events are crucial. Nowadays, despite the variety of research directions, the available data are mostly restricted to isolated locations where t
Externí odkaz:
https://doaj.org/article/adc2d12306cc42d484508b5046d0f752
Publikováno v:
Atmospheric Measurement Techniques, Vol 17, Pp 4493-4505 (2024)
Field-applied liquid animal manure (slurry) is a significant source of ammonia (NH3) emission, which is harmful to the environment and human health. To evaluate mitigation options, reliable emission measurement methods are needed. A new system of dyn
Externí odkaz:
https://doaj.org/article/5e418961323a4c89be3406e86209461c
Publikováno v:
Natural Hazards and Earth System Sciences, Vol 23, Pp 2895-2914 (2023)
Consistent estimates of avalanche size are crucial for communicating not only among avalanche practitioners but also between avalanche forecasters and the public, for instance in public avalanche forecasts. Moreover, applications such as risk managem
Externí odkaz:
https://doaj.org/article/0ec65682a18347c38dccfc28d282e25b
Publikováno v:
The Cryosphere, Vol 17, Pp 3383-3408 (2023)
Information on snow depth and its spatial distribution is important for numerous applications, including natural hazard management, snow water equivalent estimation for hydropower, the study of the distribution and evolution of flora and fauna, and t
Externí odkaz:
https://doaj.org/article/a272c0c6271541d98c71c2305b2b6971
Publikováno v:
The Cryosphere, Vol 16, Pp 3517-3530 (2022)
Spatially dense and continuous information on avalanche occurrences is crucial for numerous safety-related applications such as avalanche warning, hazard zoning, hazard mitigation measures, forestry, risk management and numerical simulations. This in
Externí odkaz:
https://doaj.org/article/d3d0b3d5888a42db999b3fb67624d1c7
Autor:
Sasha D. Hafner, Kristina Mjöfors
Publikováno v:
SoftwareX, Vol 22, Iss , Pp 101354- (2023)
Animal slurry (liquid manure) is a significant source of air pollution. Because the biological and chemical processes that drive emission are sensitive to temperature, there is a need for simple tools that can be used to predict the temperature of st
Externí odkaz:
https://doaj.org/article/82ec448e02704c28bd541636cec4c489
Autor:
Sasha D. Hafner, Sergi Astals, Christof Holliger, Konrad Koch, Lisa Nielsen, Lina Refsahl, Sören Weinrich
Publikováno v:
Cleaner Chemical Engineering, Vol 4, Iss , Pp 100065- (2022)
Kinetic information extracted from biochemical methane potential (BMP) tests is often reported but its value is unclear. Inter-laboratory reproducibility provides a useful indication of its value. Here we extracted estimates of the first-order rate c
Externí odkaz:
https://doaj.org/article/80b44631132e41008f8bb73476b93a6d
Publikováno v:
The Cryosphere, Vol 15, Pp 983-1004 (2021)
The spatial distribution and size of avalanches are essential parameters for avalanche warning, avalanche documentation, mitigation measure design and hazard zonation. Despite its importance, this information is incomplete today and only available fo
Externí odkaz:
https://doaj.org/article/542b870ba34f4a1dbd69a41291f8a111
Publikováno v:
The Cryosphere, Vol 13, Pp 3225-3238 (2019)
Accurate and timely information on avalanche occurrence is key for avalanche warning, crisis management and avalanche documentation. Today such information is mainly available at isolated locations provided by observers in the field. The achieved rel
Externí odkaz:
https://doaj.org/article/9d7c3ea1015644529336c0e3a31415b2
Publikováno v:
Andersson, K, Delin, S, Pedersen, J, Hafner, S D & Nyord, T 2023, ' Ammonia emissions from untreated, separated and digested cattle slurry-Effects of slurry type and application strategy on a Swedish clay soil ', Biosystems Engineering, vol. 226, pp. 194-208 . https://doi.org/10.1016/j.biosystemseng.2023.01.012
Animal slurry contains plant nutrients such as nitrogen (N) that are essential for crop production. Inorganic slurry N is easily volatilised as ammonia after field application, reducing slurry fertiliser value and causing environmental problems. Ammo