نتایج جستجو برای: spatial estimates
تعداد نتایج: 527599 فیلتر نتایج به سال:
Satellite data have been used for temperature modeling both in urban areas and water. This paperstudies viability of ASTER satellite images that provide high spatial and spectral resolution to model watersurface temperature, as a fundamental water quality parameter. This study is focused on Dez dam reservoirresiding in Khuzestan province, south west of Iran. After the image corrections required...
This paper estimates hedonic price models for a sample of 610 vacation rental houses located in the vicinity of a lake and four-season ski-golf resort. Hedonic semi-logarithmic regression models are estimated for peak summer and peak winter rentals for 2008. The regression estimates for weekly rental prices are conditioned on explanatory variables for house size, house quality, and recreation f...
We apply a heterogenous coefficient spatial autoregressive panel model to explore competition/cooperation by duopoly pairs of German fueling stations in setting prices for diesel and E5 fuel. We rely on a Markov Chain Monte Carlo (MCMC) estimation methodology applied with non-informative priors, which produces estimates equivalent to those from (quasi-) maximum likelihood. We explore station-le...
This paper develops two new models and evaluates the impact of using different weight matrices on parameter estimates and inference in three distinct spatial specifications for discrete response. These specifications rely on a conventional, sparse, inverse-distance weight matrix for a spatial auto-regressive probit (SARP), a spatial autoregressive approach where the weight matrix
Title of Thesis: ASSESSMENT OF POPULATIONS WITH SPATIALLY EXPLICIT DYNAMICS AND THE CONSEQUENCES FOR MARINE PROTECTED AREAS Jennifer Barkman, Master of Science, 2011 Thesis directed by: Assistant Professor Michael Wilberg Center for Environmental Science Spatial processes can have important consequences in the population dynamics of fishes and marine invertebrates. Therefore fisheries managemen...
Current, accurate, and reliable information on the areal extent and spatial distribution of mangrove forests in the Philippines is limited. Previous estimates of mangrove extent do not illustrate the spatial distribution for the entire country. This study, part of a global assessment of mangrove dynamics, mapped the spatial distribution and areal extent of the Philippines' mangroves circa 2000....
Spatial environmental data sometimes include below detection limit observations (i.e. censored values reported as less than a level of detection). Historically, the most common practice for analysis of such data has been to replace the censored observations with some function of the level of detection (LOD), like LOD/2. We show that estimates and standard errors found using this single substitu...
This article provides direct estimates of the parameters of spatial utility models of voting using data from the 2008 presidential election. By measuring citizens’ views on issues for which candidates’ stances are known, I estimate voter ideology on the same scale as candidate positions. Using these estimates, I demonstrate that policy exerts a strong influence on vote choice for most voters. W...
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