Results 11 to 20 of about 641,342 (317)

Vertical Sediment Distribution [PDF]

open access: yesJournal of Hydraulic Engineering, 1991
So far, various calculation models for the vertical distribution of suspended sediment concentration have been produced by several investigators from different theories. The limitations of all these models imply that it is possible to find a more reasonable model, for which each previous model can be included as special case.
Jin Ren Ni, Guang Qian Wang
openaire   +3 more sources

Vertical distribution of bivalves fauna in the northwestern Tatar Strait (Japan Sea)

open access: yesИзвестия ТИНРО, 2020
General patterns of bivalves distribution by depth in the northwestern Tatar Strait (within Khabarovsk region) are analyzed on the data of 384 trawl, 573 drag, and 1177 diving stations during research surveys in 2003–2016 where the samples were collected
Р. A. Dulenina, A. A. Dulenin
doaj   +1 more source

Aircraft observations on a continuous haze pollution event in Shijiazhuang area

open access: yesFrontiers in Earth Science, 2023
A continuous haze event was recorded on November 14th∼17th, 2020 over Shijiazhuang. Two flights of King-air 350 meteorological research aircraft were performed on November 14th and 16th for the retrieval and observations of meteorological elements ...
Xuesi Zhou   +8 more
doaj   +1 more source

Analyzing the Influence of Urban Street Greening and Street Buildings on Summertime Air Pollution Based on Street View Image Data

open access: yesISPRS International Journal of Geo-Information, 2020
Transport emissions and street dust are important sources of summertime air pollution in urban centers. Street greening and buildings have an influence on the diffusion of air pollution from streets. For field measurements, many studies have analyzed the
Dong Wu   +4 more
doaj   +1 more source

Controls of Wind-Driven Jet on the Distribution of Pelagic Cnidarians in the Midwestern South China Sea

open access: yesFrontiers in Marine Science, 2021
The coastal water transported by the combined action of southwest wind jet and anticyclonic eddy substantially influences the biological processes in the midwestern South China Sea.
Ruping Ge   +11 more
doaj   +1 more source

Reconstructing The Vertical Distribution Of The Aeolian Saltation Mass Flux Based On The Probability Distribution Of Lift-Off Velocity [PDF]

open access: yes, 2008
The probability distribution of lift-off velocity of the saltating grains is a bridge to linking microscopic and macroscopic research of aeolian sand transport.
Kang LQ   +3 more
core   +1 more source

Underwater Use of a Hyperspectral Camera to Estimate Optically Active Substances in the Water Column of Freshwater Lakes

open access: yesRemote Sensing, 2020
Freshwater lakes provide many important ecosystem functions and services to support biodiversity and human well-being. Proximal and remote sensing methods represent an efficient approach to derive water quality indicators such as optically active ...
Michael Seidel   +5 more
doaj   +1 more source

Flight periodicity and the vertical distribution of high-altitude moth migration over southern Britain [PDF]

open access: yes, 2009
The continuous operation of insect-monitoring radars in the UK has permitted, for the first time, the characterization of various phenomena associated with high-altitude migration of large insects over this part of northern Europe.
Wood, C.R.   +13 more
core   +1 more source

Effect of fertilization on the distribution of root phytomass and the yield of meadow stands

open access: yesPlant, Soil and Environment, 2004
In 1998-2000 the effect of fertilization on the quantity, stratification of root phytomass and yields of dry mass on mesophyte meadow stands was studied.
J. Mrkvička, M. Veselá, M. Skála
doaj   +1 more source

The Observation Path Problems and the Formation Conditions of the Elevated Layer of Black Carbon Aerosol

open access: yesAtmosphere, 2020
Studies on the detection of layers with elevated black carbon aerosol (BC) concentrations and the formation conditions of these layers help understand the vertical distribution of BC concentrations, which will provide a basis for the assessment of ...
Lianji Jin   +6 more
doaj   +1 more source

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