Results 31 to 40 of about 16,702 (269)

Modeling surface fluxes over a sparse vegetation

Archives of Biological Sciences, 2012
In this paper some of aspects in modeling over sparse vegetation using the Land-Air Parameterization Scheme (LAPS), including an approach in calculating the turbulent transfer coefficient using ?K-theory? inside a sparse vegetation canopy, were considered. For this purpose, the scheme was run for different sparse agricultural cultivars, i.e.
Mihailović, D.T., Lalić, Branislava, Jacek Leśny, Janusz Olejnik   +3 more
openaire   +3 more sources

Are the Fenno-Scandinavian Arctic Wetlands a Significant Regional Source of Formic Acid?

Atmosphere, 2017
This study presents the first gaseous formic acid (HC(O)OH) concentration measurements collected over the Fenno-Scandinavian wetlands (67.9–68.0° N, 22.1–27.8° E) as part of the MAMM (Methane and other greenhouse gases in the Arctic-Measurements, process
Benjamin T. Jones, Jennifer Muller, Sebastian O’Shea, Asan Bacak, Grant Allen, Martin Gallagher, Keith Bower, Michael Le Breton, Thomas J. Bannan, Stephane Bauguitte, John Pyle, Dave Lowry, Rebecca Fisher, James France, Euan Nisbet, Dudley Shallcross, Carl Percival   +16 more
doaj   +1 more source

Landscape variability and surface flux parameterization in climate models [PDF]

Agricultural and Forest Meteorology, 1995
The Earth's surface shows variability at the landscape scale (1-10 km); the influence of surface variability at this scale has been analysed to provide a parameterization for use in large-scale atmospheric models with a grid size unable to solve the landscape scale explicitly.
Klaassen, W., Claussen, M. ; https://orcid.org/0000-0001-6225-5488   +1 more
openaire   +2 more sources

An improved Antarctic dataset for high resolution numerical ice sheet models (ALBMAP v1) [PDF]

Earth System Science Data, 2010
The dataset described in this paper (ALBMAP) has been created for the purposes of high-resolution numerical ice sheet modelling of the Antarctic Ice Sheet. It brings together data on the ice sheet configuration (e.g.
A. M. Le Brocq, A. J. Payne, A. Vieli
doaj   +1 more source

Surface energy fluxes on Chilean glaciers: measurements and models [PDF]

The Cryosphere, 2019
Abstract. The surface energy fluxes of glaciers determine surface melt and their adequate parameterization is one of the keys for a successful prediction of future glacier mass balance and freshwater discharge. Chile hosts glaciers in a large range of latitudes under contrasting climatic settings: from 18° S in the Atacama Desert to 55° S on Tierra del
M. Schaefer, D. Fonseca-Gallardo, D. Farías-Barahona, G. Casassa, G. Casassa   +4 more
openaire   +3 more sources

An analytical expression for ion velocities at the wall including the sheath electric field and surface biasing for erosion modeling at JET ILW

Nuclear Materials and Energy, 2017
For simulation of plasma-facing component erosion in fusion experiments, an analytical expression for the ion velocity just before the surface impact including the local electric field and an optional surface biasing effect is suggested.
I. Borodkina, D. Borodin, S. Brezinsek, A. Kirschner, I.V. Tsvetkov, V.A. Kurnaev, V. Bobkov, C.C. Klepper, A. Lasa, C. Guillemaut, P. Jacquet, M.F. Stamp, C. Giroud, S. Silburn, I. Balboa, E. Solano   +15 more
doaj   +1 more source

Uncertainties in long-term ensemble estimates of contextual evapotranspiration over southern France [PDF]

Hydrology and Earth System Sciences
Estimating evapotranspiration (ET) beyond the local or point scale is critical for water resources and ecosystem studies. Remote sensing offers a unique advantage by enabling ET monitoring at larger spatial scales than in-situ instruments.
S. Mwangi, S. Mwangi, A. Olioso, J. Etchanchu, K. Mallick, A. Jia, J. Demarty, N. Farhani, E. Sarrazin, P. Gamet, J.-L. Roujean, G. Boulet, G. Boulet   +12 more
doaj   +1 more source

MEMOS 3D modelling of ELM-induced transient melt damage on an inclined tungsten surface in the ASDEX Upgrade outer divertor

Nuclear Materials and Energy, 2018
The first MEMOS 3D simulations of liquid metal motion on an inclined bulk tungsten sample transiently molten by edge-localized modes (ELMs) are reported.
E. Thorén, S. Ratynskaia, P. Tolias, R.A. Pitts, K. Krieger, M. Komm, M. Balden   +6 more
doaj   +1 more source

Modeling Radon Flux Density from the Earth's Surface [PDF]

Journal of Nuclear Science and Technology, 2006
In order to make the idealized model for predicting soil radon flux more practically and accurately, two central variables (radon emanation power and soil water content) controlling the amount of radon transportation in soil were formulated. The reformulated model for predicting radon flux density was verified by the field measurements carried out in ...
Weihai ZHUO, Takao IIDA, Masahide FURUKAWA   +2 more
openaire   +1 more source

Active and passive controls of Jeffrey nanofluid flow over a nonlinear stretching surface

Results in Physics, 2017
This communication explores magnetohydrodynamic (MHD) boundary-layer flow of Jeffrey nanofluid over a nonlinear stretching surface with active and passive controls of nanoparticles. A nonlinear stretching surface generates the flow.
Tasawar Hayat, Arsalan Aziz, Taseer Muhammad, Ahmed Alsaedi   +3 more
doaj   +1 more source