Search Results - "Shortridge, Ashton M"

Measuring geographic access to health care: raster and network-based methods by Delamater, Paul L, Messina, Joseph P, Shortridge, Ashton M, Grady, Sue C

“…Inequalities in geographic access to health care result from the configuration of facilities, population distribution, and the transportation infrastructure…”
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Vertical vs. Horizontal Fractal Dimensions of Roads in Relation to Relief Characteristics by Prah, Klemen, Shortridge, Ashton M.

“…This paper investigated the surface length of roads from both horizontal and vertical perspectives using the theory of fractal dimension of surfaces and…”
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Using floating catchment area (FCA) metrics to predict health care utilization patterns by Delamater, Paul L, Shortridge, Ashton M, Kilcoyne, Rachel C

“…Floating Catchment Area (FCA) metrics provide a comprehensive measure of potential spatial accessibility to health care services and are often used to identify…”
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Do more hospital beds lead to higher hospitalization rates? a spatial examination of Roemer's Law by Delamater, Paul L, Messina, Joseph P, Grady, Sue C, WinklerPrins, Vince, Shortridge, Ashton M

“…Roemer's Law, a widely cited principle in health care policy, states that hospital beds that are built tend to be used. This simple but powerful expression has…”
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Accounting for DEM Error in Sea Level Rise Assessment within Riverine Regions; Case Study from the Shatt Al-Arab River Region by Ali K. M. Al-Nasrawi, Ameen A. Kadhim, Ashton M. Shortridge, Brian G. Jones

“…Global elevation datasets such as the Shuttle Radar Topography Mission (SRTM) digital elevation model (DEM) are the best available terrain data in many parts…”
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A regional ASTER GDEM error model for the Chinese Loess Plateau by Dong, Youfu, Shortridge, Ashton M.

“…Accuracy of the global ASTER GDEM (Advanced Space-borne Thermal Emission and Reflection Radiometer Global Digital Elevation Model) version 2 (v2) elevation…”
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Effects of payments for ecosystem services on wildlife habitat recovery by Tuanmu, Mao-Ning, Viña, Andrés, Yang, Wu, Chen, Xiaodong, Shortridge, Ashton M., Liu, Jianguo

“…Conflicts between local people's livelihoods and conservation have led to many unsuccessful conservation efforts and have stimulated debates on policies that…”
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Flooded with Error: Handling Uncertainty in SRTM for the Assessment of Sea Level Rise in the Mississippi River Delta by Kadhim, Ameen A., Shortridge, Ashton M.

“…Digital elevation data are essential to estimate coastal vulnerability to flooding due to sea-level rise. Shuttle Radar Topography Mission (SRTM) 1 arc-second…”
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MODIS land cover uncertainty in regional climate simulations by Li, Xue, Messina, Joseph P., Moore, Nathan J., Fan, Peilei, Shortridge, Ashton M.

“…MODIS land cover datasets are used extensively across the climate modeling community, but inherent uncertainties and associated propagating impacts are rarely…”
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Evaluating Michigan's community hospital access: spatial methods for decision support by Messina, Joseph P, Shortridge, Ashton M, Groop, Richard E, Varnakovida, Pariwate, Finn, Mark J

“…Community hospital placement is dictated by a diverse set of geographical factors and historical contingency. In the summer of 2004, a multi-organizational…”
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Regional health care planning: a methodology to cluster facilities using community utilization patterns by Delamater, Paul L, Shortridge, Ashton M, Messina, Joseph P

“…Community-based health care planning and regulation necessitates grouping facilities and areal units into regions of similar health care use. Limited research…”
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Mapping the phases of Glacial Lake Algonquin in the upper Great Lakes region, Canada and USA, using a geostatistical isostatic rebound model by Drzyzga, Scott A, Shortridge, Ashton M, Schaetzl, Randall J

“…This study reviews Glacial Lake Algonquin, examines the Main and two “Upper Group” phases in northern Michigan and nearby Ontario, reports their spatial…”
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A methodology for projecting hospital bed need: a Michigan case study by Langley, Shaun A, Fuller, Steven P, Messina, Joseph P, Shortridge, Ashton M, Grady, Sue C

“…Michigan's Department of Community Health (MDCH) is responsible for managing hospitals through the utilization of a Certificate of Need (CON) Commission…”
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Thousands of shallow, relict gullies indicate thermo-erosion on the sandy uplands of northern Lower Michigan during the Late Pleistocene by Baish, Christopher J., Post, Alanna, Shortridge, Ashton M., Schaetzl, Randall J., Hopkins, Parker, Bowman, Anthony, Rabac, Isabella, Frantz, Bernard, Finley, Andrew O.

“…We build on previous work which explained the origin of myriad gullies and incised channels on the dry, sandy uplands of northern Lower Michigan by invoking…”
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Exploring the Impacts of Pseudo-Random Number Generators on Sub-pixel Classification by Makido, Yasuyo K., Messina, Joseph P., Shortridge, Ashton M.

“…Pseudo-random number generators (PRNGs) create deterministic approximations of random number sequences that typically contain biases and structural…”
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Geostatistics for conflation and accuracy assessment of digital elevation models by Kyriakidis, Phaedon C., Shortridge, Ashton M., Goodchild, Michael F.

“…A geostatistical methodology is proposed for integrating elevation estimates derived from digital elevation models (DEMs) and elevation measurements of higher…”
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Volumetric Estimates of Coastal Sand Dunes in Lower Michigan: Explaining The Geography of Dune Fields by Arbogast, Alan F., Shortridge, Ashton M., Bigsby, Michael E.

“…This study assesses the geography and volume of coastal dune sand along Lakes Huron and Michigan in Lower Michigan. Dune field extents were obtained from…”
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Visualizing spatial data uncertainty using animation by Ehlschlaeger, Charles R., Shortridge, Ashton M., Goodchild, Michael F.

“…This paper examines methodologies for dynamically displaying information about uncertainty. Modeling uncertainty in elevation data results in the generation of…”
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Geometric probability and GIS: some applications for the statistics of intersections by Shortridge, Ashton M., Goodchild, Michael F.

“…This paper identifies analytical and empirical methods for determining the probability that lines and areas intersect tiles in a regular tessellation. Such…”
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