نتایج جستجو برای: thiessen polygons

تعداد نتایج: 5985  

ژورنال: علوم آب و خاک 2014

In this study, the influence of spatial heterogeneity of rainfall on flood hydrograph prediction in three mountainous catchments in south west of Iran was studied. Two interpolation techniques including Thiessen polygons method and Inverse Distance Weighting method were applied to compare the rainfall patterns of surrounding rain-gages in hydrograph simulation with rainfall patterns of nearest ...

Journal: :International Journal on Smart Sensing and Intelligent Systems 2015

Journal: :Hydrology 2021

Different methods are known for interpolating spatial data. Introduced a few years ago, the initial version of Most Probable Precipitation Method (MPPM) proved to be valuable competitor against Thiessen Polygons Method, Inverse Distance Weighting and kriging estimating regional trend precipitation series. Climate Analyzer, introduced here, is user-friendly toolkit written in Matlab, which imple...

2014
Ciprian Palaghianu

Forest regeneration is a spatial multifaceted process with numerous unknown variables. The individual area or the area potentially available (APA) to an individual plant embodies an idea widely used in population ecology but it has fewer applications in forest research. It was used a Voronoi/ Thiessen tessellation in order to determine the individual area of each sapling. The study was conducte...

Journal: :Revista panamericana de salud publica = Pan American journal of public health 2013
Mirella Rodrigues Cristine Bonfim José Luiz Portugal Idê Gomes Dantas Gurgel Zulma Medeiros

OBJECTIVE To analyze the spatial distribution of infant mortality and identify clusters with high risk of death in the first year of life. METHODS The Thiessen (Voronoi) polygon method was used to analyze spatial distribution of the infant mortality rate, calculated by municipality. The triennium 2006 - 2008 was used as a reference to estimate the average infant mortality rate, and the first ...

2017
Bin Jiang

A city is a whole, as are all cities in a country. Within a whole, individual cities possess different degrees of wholeness, defined by Christopher Alexander as a life-giving order or simply a living structure. To characterize the wholeness and in particular to advocate for wholeness as an effective design principle, this paper develops a geographic representation that views cities as a whole. ...

Journal: :Natural Hazards 2022

This study aims to investigate the trend of water-level changes in lakes (Lake Tuz and Lake Bey?ehir) sinkholes (Timra? K?zören) Konya Closed Basin located Turkey. Water-level these were investigated along with meteorological parameters (precipitation, temperature, evaporation) groundwater trends that indicate climate region. Several statistical tests can be used determine significance hydrolog...

2010
Buyang CAO Fred GLOVER

A challenging problem in real world logistics applications consists in planning service territories for customer deliveries, in contexts where customers must be clustered into groups that satisfy various conditions such as balance and connectivity. In this paper we propose new algorithms for producing such clusters based upon special procedures for exploiting Thiessen polygons. Our methods are ...

2003
G. Dubois

Analysis of a spatial phenomenon is to a great extent affected by the frequent irregular structures and/or the preferential clustering of the sampling schemes. To obtain representative statistics for an area of interest, the influence of clustered measurements needs to be reduced by attributing them lower weights. In this case study, two standard methods, the polygonal and the cell-declustering...

Journal: :Sustainability 2023

This paper constructs an evaluation index system for the suitability of community home and institutional elderly care land development, respectively, from different modes with data urban POI, OSM road network, expert questionnaires in Changsha area 2021, order to alleviate pressure insufficient brought on by increasingly serious aging problem. The is based intersection Thiessen polygons current...

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