搜索结果: 1-15 共查到“理学 Temporal variations”相关记录23条 . 查询时间(0.926 秒)
Assessment of spatio-temporal variations in land use land cover over pimipri chinch wad Municipal corporation using Remote sensing data
Land use/land cover (LULC) supervised classification
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2014/11/11
The status and trends of urban land use/land cover (LULC) significantly impacts the quality
of human life and urban ecosystems. Pimpri-Chinchwad (PCMC) is one of the rapidly
urbanizing municipal c...
Spurious velocity changes caused by temporal variations in ambient noise frequency content
Time-series analysis Interferometry Surface waves and free oscillations Coda waves
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2014/4/10
Ambient seismic noise cross-correlations are now being used to detect temporal variations of seismic velocity, which are typically on the order of 0.1 per cent. At this small level, temporal variation...
Spatial and temporal variations of trace metals in sediments from the artificial Saemangeum Lake, Korea
Saemangeum Lake trace metal spatial distribution pollution status dike
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2017/4/11
Trace metals in the surface sediments were measured to investigate the spatial distribution and annual variations of
metals (Cr, Co, Ni, Cu, Zn, As, Cd, Pb, Hg) and to evaluate the pollution status f...
Lateral sediment sources and knickzones as controls on spatio-temporal variations of sediment transport in an Alpine river
Sediment transport Critical shear stress Return period floods Particle entrainment Basin hydrology Swiss Alps
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2014/5/20
Modern mixed alluvial-bedrock channels in mountainous areas provide natural laboratories for understanding the time scales at which coarse-grained material has been entrained and transported from thei...
Temporal Variations in Airborne Particulate Matter Levels at an Indoor Bus Terminal and Exposure Implications for Terminal Workers
PM10 PM2.5 Ultrafine particle Bus terminal Station ticket inspector Exposure level
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2016/3/28
This study investigates temporal variations in PM levels in Taipei bus terminal and assesses exposure levels for bus
terminal workers. Measurement results show that temporal variations in PM levels i...
Revisiting the solar tachocline: Average properties and temporal variations
Revisiting solar tachocline:Average properties temporal variations
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2011/9/28
The tachocline is believed to be the region where the solar dynamo operates. With over a solar cycle's worth of data available from the MDI and GONG instruments, we are in a position to investigate no...
Temporal variations of black carbon in Guangzhou, China, in summer 2006
black carbon Guangzhou summer 2006 temporal variations
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2010/8/16
In situ measurements of the mass concentration of black carbon (BC) and mixing ratios of carbon monoxide (CO) and carbon dioxide (CO2) were made at Guangzhou, an urban measurement site in the Pearl Ri...
Temporal variations of the fractal properties of seismicity in the western part of the north Anatolian fault zone:possible artifacts due to improvements in station coverage
Temporal variations fractal properties of seismicity north Anatolian fault zone
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2009/11/16
Seismically-active fault zones are complex natural systems exhibiting scale-invariant or fractal correlation between earthquakes in space and time, and a power-law scaling of fault length or earthquak...
Temporal variations in microbial activities and carbon turnover in subtidal sandy sediments
Temporal variations microbial activities carbon turnover subtidal sandy sediments
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2010/1/20
Temporal dynamics and vertical patterns in bacterial abundances and activities were studied in a shallow subtidal sand flat in the Sylt-Rømø Basin (North Frisian Wadden Sea, Germany). Ex...
Temporal Variations of Energy Release by Earthquakes in the Baltic Shield
Temporal Variations Energy Release Earthquakes Baltic Shield
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2009/6/15
Temporal Variations of Energy Release by Earthquakes in the Baltic Shield.
Temporal Variations in Bio-Optical Properties of Four North Estonian Lakes in 1999-2000
limnology lake optics optically active substances underwater light field attenuation coefficient spectra phytoplankton
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2009/6/9
To investigate the seasonal variation of bio-optical parameters in lakes of different type regular measurement campaigns were carried out in four North Estonian lakes in 1999–2000. Some parameters (re...
Temporal variations in near surface soil moisture at two contrasting sites in the Wye catchment and their control on storm streamflow generation
near surface soil moisture storm streamflow generation Wye catchment
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2009/6/8
Near surface soil moisture measurements were recorded at hourly intervals at two contrasting sites within the Cyff sub-catchment using a prototype capacitance probe system. In a mire area within a val...
Spatial and temporal variations in the occurrence of low flow events in the UK
variations low flow
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2009/3/24
Information on the magnitude and variability of low river flows at the river reach scale is central to most aspects of water resource and water quality management.
The Spatial and Temporal Variations of the Turbulent Fluxes of Heat, Momentum and Water Vapor over Lake Ontario
Temporal Variations Water Vapor Turbulent Fluxes
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2009/3/24
During the 1972 IFYGL “alert” periods, the NOAA/RFF/DC-6 gust probe instrumented aircraft was used to record time series of wind, temperature and water vapor at heights ranging from 18 to 300 m above ...
Effect on nitrate concentration in stream water of agricultural practices in small catchments in Brittany: II. Temporal variations and mixing processes
nitrate diffuse pollution groundwater seasonal variations
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2009/3/17
In catchments with impervious bedrock, the nitrate concentrations in streamwater often show marked seasonal and small inter-annual variations. The inter-annual trends are usually attributed to changes...