搜索结果: 1-13 共查到“理学 Coverage”相关记录13条 . 查询时间(0.1 秒)
COUPLING ANALYSIS OF HEAT ISLAND EFFECTS, VEGETATION COVERAGE AND URBAN FLOOD IN WUHAN
Heat Island Vegetation Coverage Urban Flood Change Detection Wuhan
2018/5/15
In this paper, satellite image, remote sensing technique and geographic information system technique are main technical bases. Spectral and other factors comprehensive analysis and visual interpretati...
STUDY OF MAOWUSU SANDY LAND VEGETATION COVERAGE CHANGE BASED ON MODIS NDVI
Normalized Differential Vegetation Index Vegetation Coverage Maowusu Sandy Land Maximum Value Composite Pearson Correlation Coefficient Inverse Distance Weighting
2018/5/16
This paper selected 2006-2016 MODIS NDVI data with a spatial resolution of 500m and time resolution of 16d, got the 11 years’ time series NDVI data of Maowusu sandy land through mosaicking, projection...
Global analysis of cloud field coverage and radiative properties, using morphological methods and MODIS observations
cloud field coverage radiative properties morphological methods MODIS observations
2011/1/19
The recently recognized continuous transition zone between detectable clouds and cloud-free atmosphere ("the twilight zone") is affected by undetectable clouds and humidified aerosol. In this study, w...
Adaptive Algorithms for Coverage Control and Space Partitioning in Mobile Robotic Networks
Adaptive Algorithms Coverage Control and Space Partitioning
2010/11/9
We consider deployment problems where a mobile robotic network must optimize its configuration in a distributed way in order to minimize a steady-state cost function that depends on the spatial distr...
A Tractable Approach to Coverage and Rate in Cellular Networks
Coverage Rate Cellular Networks
2010/11/29
Cellular networks are usually modeled by placing the base stations on a grid, with mobile users either randomly scattered or placed deterministically. These models have been used extensively but suffe...
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
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...
Limitations in Hydrological Interpretations of the Snow Coverage
Limitations Hydrological Interpretations Snow Coverage
2009/10/28
Patterns of the disappearing seasonal snow cover are similar year after year.
This could lead to the assumption that a certain areal extent of snow indicates
always a corresponding volume of snow or...
Elevation based correction of snow coverage retrieved from satellite images to improve model calibration
snow coverage satellite images
2009/7/22
The most widely used method for snow dynamic simulation relies on temperature index approach, that makes snow melt and accumulation processes depend on air temperature related parameters. A recently u...
A Bayesian spatial assimilation scheme for snow coverage observations in a gridded snow model
Bayesian spatial assimilation scheme snow coverage area precipitation-runoff model snow depletion curve
2009/5/13
A method for assimilating remotely sensed snow covered area (SCA) into the snow subroutine of a grid distributed precipitation-runoff model (PRM) is presented. The PRM is assumed to simulate the snow...
Optimal Power-Law Description of Oceanic Whitecap Coverage Dependence on Wind Speed
Optimal Power-Law Description Oceanic Whitecap Coverage Dependence Wind Speed
2009/2/19
The optimal power-law expression for the dependence of oceanic whitecap coverage fraction W on 10 m elevation wind speed U as determined by ordinary least squares fitting applied to the combined white...
An Analytical Model for Oceanic Whitecap Coverage
Oceanic Whitecap Coverage frictional velocity phase velocity
2009/1/13
Using a threshold criterion governing the onset of wave breaking, we derived an analytical expression for the whitecap coverage of the ocean. This expression is a function of the wave steepness in ter...
Coverage Accuracy of Confidence Intervals in Nonparametric Regression
confidence interval empirical likelihood
2007/12/11
Point-wise confidence intervals for a nonparametric regression function with random design points are considered. The confidence intervals are those based on the traditional normal approximation and t...
Sampling and testing are conducted on groundwater depth and vegetation coverage in the 670 km2 of the Sangong River Basin and semi-variance function analysis is made afterwards on the data...