Results 1 to 10 of about 1,087,962 (198)

Update of a biogeochemical model with process-based algorithms to predict ammonia volatilization from fertilized cultivated uplands and rice paddy fields [PDF]

Biogeosciences, 2022
Accurate simulation of ammonia (NH3) volatilization from fertilized croplands is crucial to enhancing fertilizer-use efficiency and alleviating environmental pollution.
S. Li, W. Zhang, X. Zheng, X. Zheng, Y. Li, S. Han, R. Wang, K. Wang, Z. Yao, C. Liu, C. Zhang   +10 more
doaj   +1 more source

Comparison Experiment for Rainfall Observation of Micro-smart Weather Stations

应用气象学报, 2023
In order to enhance the understanding of rainfall observation performance of micro-smart (integrated) weather stations and to promote the application in rainfall observation operations, a comparative experiment for the rainfall observation of radar ...
Wang Zhenchao, Chen Xuejiao, Liu Shu, Hua Jiajia, Liu Wenzhong   +4 more
doaj   +1 more source

Interannual Variations of Water and Carbon Dioxide Fluxes over a Semiarid Alpine Steppe on the Tibetan Plateau

Advances in Meteorology, 2022
Water and carbon exchanges between grassland and the atmosphere are important processes for water balance and carbon balance. Based on eddy covariance observations over a semiarid alpine steppe ecosystem in Bange on the Tibetan Plateau during the growing
Yang Liu, Huizhi Liu, Fengquan Li, Qun Du, Lujun Xu, Yaohui Li   +5 more
doaj   +1 more source

The Plasmasphere Boundary Layer [PDF]

Annales Geophysicae, 2004
Abstract. As an inner magnetospheric phenomenon the plasmapause region is of interest for a number of reasons, one being the occurrence there of geophysically important interactions between the plasmas of the hot plasma sheet and of the cool plasmasphere.
D. L. Carpenter, J. Lemaire, J. Lemaire
openaire   +7 more sources

Superfluid Boundary Layer [PDF]

Physical Review Letters, 2017
We model the superfluid flow of liquid helium over the rough surface of a wire (used to experimentally generate turbulence) profiled by atomic force microscopy. Numerical simulations of the Gross-Pitaevskii equation reveal that the sharpest features in the surface induce vortex nucleation both intrinsically (due to the raised local fluid velocity) and ...
Stagg GW, Parker NG, Barenghi CF
openaire   +5 more sources

Viscoplastic boundary layers [PDF]

Journal of Fluid Mechanics, 2017
In the limit of a large yield stress, or equivalently at the initiation of motion, viscoplastic flows can develop narrow boundary layers that provide either surfaces of failure between rigid plugs, the lubrication between a plugged flow and a wall or buffers for regions of predominantly plastic deformation. Oldroyd (Proc. Camb. Phil. Soc., vol.
Balmforth, NJ, Craster, RV, Hewitt, DR, Hormozi, S, Maleki, A   +4 more
openaire   +4 more sources

Characteristics and sources of submicron aerosols above the urban canopy (260 m) in Beijing, China, during the 2014 APEC summit [PDF]

Atmospheric Chemistry and Physics, 2015
The megacity of Beijing has experienced frequent severe fine particle pollution during the last decade. Although the sources and formation mechanisms of aerosol particles have been extensively investigated on the basis of ground measurements, real-time ...
C. Chen, Y. L. Sun, W. Q. Xu, W. Du, L. B. Zhou, T. T. Han, Q. Q. Wang, P. Q. Fu, Z. F. Wang, Z. Q. Gao, Q. Zhang, D. R. Worsnop   +11 more
doaj   +1 more source

Assessing biogeochemical effects and best management practice for a wheat–maize cropping system using the DNDC model [PDF]

Biogeosciences, 2014
Contemporary agriculture is shifting from a single-goal to a multi-goal strategy, which in turn requires choosing best management practice (BMP) based on an assessment of the biogeochemical effects of management alternatives.
F. Cui, X. Zheng, C. Liu, K. Wang, Z. Zhou, J. Deng   +5 more
doaj   +1 more source

Evaluation of Ozone Formation Potential of Formaldehyde Using Smog Chamber Data

Aerosol and Air Quality Research, 2023
Formaldehyde (HCHO) is one of the important O3 precursors in the atmospheric environment, but the mechanism for HCHO photochemical reactions is not very clear now. In the present study, the effects of relative humidity (RH) and initial VOC/NOx ratio (RCN)
Hailiang Zhang, Yongfu Xu, Long Jia
doaj   +1 more source

Wind and boundary layers in Rayleigh-Benard convection. Part 2: boundary layer character and scaling [PDF]

, 1997
The effect of the wind of Rayleigh-Benard convection on the boundary layers is studied by direct numerical simulation of an L/H=4 aspect-ratio domain with periodic side boundary conditions for Ra={10^5, 10^6, 10^7} and Pr=1.
van Reeuwijk, Maarten, Jonker, Harm J. J., Hanjalic, Kemo   +2 more
core   +5 more sources