Results 11 to 20 of about 585,804 (279)
Water and soil resources are the key elements required to maintain the stability and sustainable development of oases in inland drylands. This study takes oases in Xinjiang as an example, and reveals the spatial and temporal distribution characteristics ...
Ji Zhang +6 more
doaj +1 more source
Evaluating optimized digital elevation precipitation model using IDW method (Case study: Jam & Riz Watershed of Assaloyeh, Iran) [PDF]
A watershed management program is usually based on the results of watershed modeling. Accurate modeling results are decided by the appropriate parameters and input data. Precipitation is the most important input for watershed modeling.
s. Modallaldoust
doaj +1 more source
Analysis of spatio-temporal transmission characteristicsfor H7N9 infection in China
To reveal the temporal and spatial development and evolution of human H7N9 infection in China, based on the statistical data of human H7N9 infection from 2013 to 2017, time series and standard deviation ellipse analysis were performed.
Baoyun WANG +6 more
doaj +1 more source
A new method for identifying industrial clustering using the standard deviational ellipse
AbstractIndustrial agglomeration has attracted extensive attention from economists and geographers, yet it is still a challenge to identify the multi-agglomeration spatial structure and degree of industrial agglomeration in continuous space—there is still a lack of a more targeted industrial clustering method.
Ziwei Zhao, Zuoquan Zhao, Pei Zhang
openaire +3 more sources
A directional ellipse to describe directional behavior and player activity area in soccer
This study aimed to compare four standard deviational ellipse models to assess directional behavior and player activity area in four small-sided games (SSG) of soccer played on pitches with the same width (40 m) and different lengths (30, 40, 50, and 60 ...
E. Fernández-Peña +4 more
semanticscholar +1 more source
Urban wetlands provide cities with unique and valuable ecosystem services but are under great degradation pressure. Correctly identifying urban wetlands from remote sensing images is fundamental for developing appropriate management and protection plans.
Renfei Yang +6 more
doaj +1 more source
Clustering Indian Ocean Tropical Cyclone Tracks by the Standard Deviational Ellipse [PDF]
The standard deviational ellipse is useful to analyze the shape and the length of a tropical cyclone (TC) track. Cyclone intensity at each six-hour position is used as the weight at that location. Only named cyclones in the Indian Ocean since 1981 are considered for this study.
Md. Rahman, Ruixin Yang, Liping Di
openaire +1 more source
Effects of Production–Living–Ecological Space Patterns Changes on Land Surface Temperature
Rapid economic and social development has triggered competition for limited land space from different industries, accelerating the evolution of Beijing’s urban landscape types. The increase in impermeable surfaces and the decrease in ecological land have
Han Liu +5 more
doaj +1 more source
Analysis on distribution characteristics of velocities over depth in a coastal area
Based on the continuous Acoustic Doppler Current Profiler (ADCP) data at two stations in the Strait of Georgia, Canada, spatiotemporal variation characteristics of the eastern and northern velocity component over depth was analyzed, and dominant tidal ...
Lei Ren +3 more
doaj +1 more source
The Yangtze River Basin (YRB) is the birthplace of Chinese civilization and is rich in traditional village resources. Studying their spatial distribution characteristics and influencing factors can guide the protection, inheritance, and development of ...
Wan-xu Chen +7 more
semanticscholar +1 more source

