Applied Geographic Studies最新文献

Automating the environmental impact assessment process: An Implementation Perspective 环境影响评估过程的自动化:实现视角

Applied Geographic Studies Pub Date : 2013-08-06 DOI: 10.1002/(SICI)1520-6319(199821)2:1<59::AID-AGS5>3.0.CO;2-S

James K. Lein

引用次数: 2

Overview and summary of panel session on “Retail space: How much is too much?” “零售空间:多少才算太多?”小组讨论概述及总结

Applied Geographic Studies Pub Date : 2013-08-06 DOI: 10.1002/(SICI)1520-6319(199824)2:4<243::AID-AGS2>3.0.CO;2-R

J. Dennis Lord

引用次数: 2

Remote sensing of successional changes in wetland vegetation as monitored during a four-year drawdown of a former cooling lake 湿地植被演替变化的遥感监测，在一个前冷却湖四年减少期间

Applied Geographic Studies Pub Date : 2013-08-06 DOI: 10.1002/(SICI)1520-6319(199721)1:1<31::AID-AGS4>3.0.CO;2-W

John R. Jensen, Xueqiao Huang, Halkard E. Mackey Jr.

引用次数: 6

On mobility in the southern city's suburbs—residential relocation in Trinidad & Tobago 论南部城市郊区的流动性——特立尼达和多巴哥的住宅搬迁

Applied Geographic Studies Pub Date : 2013-08-06 DOI: 10.1002/(SICI)1520-6319(199722)1:2<115::AID-AGS3>3.0.CO;2-4

Barry Riddell

引用次数: 1

Extracting soil moisture information from ERS-1 imagery 从ERS-1影像中提取土壤水分信息

Applied Geographic Studies Pub Date : 2013-08-06 DOI: 10.1002/(SICI)1520-6319(199823)2:3<177::AID-AGS2>3.0.CO;2-Z

J.M. Shawn Hutchinson

{"title":"Extracting soil moisture information from ERS-1 imagery","authors":"J.M. Shawn Hutchinson","doi":"10.1002/(SICI)1520-6319(199823)2:3<177::AID-AGS2>3.0.CO;2-Z","DOIUrl":"10.1002/(SICI)1520-6319(199823)2:3<177::AID-AGS2>3.0.CO;2-Z","url":null,"abstract":"Active microwave remote sensing techniques have been shown to be effective in measuring moisture levels at the soil surface. As synthetic aperture radar (SAR) data from satellites increasingly becomes available, the potential exists to repetitively monitor soil moisture conditions over large areas. Here, multitemporal ERS-1 SAR imagery were integrated with digital terrain data, vegetation measurements, and precipitation records to: (1) quantify and reduce the effect of variable terrain on SAR image digital number (DN) values, (2) isolate the amount of soil-contributed backscatter (σSOIL0) from the total backscatter coefficient (σTOT0), and (3) qualitatively examine the relationship between σSOIL0 and surface soil moisture conditions over tallgrass prairie subjected to varying treatments of prescribed burning. Local incidence angle (LIA) was found to have the strongest influence on SAR image backscatter values (r = 0.341). An empirically derived correction function based on the least squares estimate of σTOT0 and LIA data pairs improved image quality by more than 11%. A simple cloud model is then used to calculate the amount of radar energy backscattered by the vegetation canopy (σVEG0) in both burned and unburned watersheds. Subtracting σVEG0 from σTOT0 provides the estimate of σSOIL0. Unburned watershed σSOIL0 was significantly lower than that of burned watersheds, due to the higher density of scattering particles causing elevated σVEG0 values in these areas. At watershed and larger scales, changes in σSOIL0 reflected temporal changes in surface soil moisture levels inferred by local precipitation measurements and water budget consideration. © 1998 John Wiley & Sons, Inc.","PeriodicalId":100107,"journal":{"name":"Applied Geographic Studies","volume":"2 3","pages":"177-194"},"PeriodicalIF":0.0,"publicationDate":"2013-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74773233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Environmental assessment and monitoring with image characterization and modeling system using multiscale remote sensing data 基于多尺度遥感数据的环境评价与监测图像表征与建模系统

Applied Geographic Studies Pub Date : 2013-08-06 DOI: 10.1002/(SICI)1520-6319(199822)2:2<77::AID-AGS1>3.0.CO;2-O

Nina Siu-ngan Lam, Dale Quattrochi, Hong-lie Qiu, Wei Zhao

{"title":"Environmental assessment and monitoring with image characterization and modeling system using multiscale remote sensing data","authors":"Nina Siu-ngan Lam, Dale Quattrochi, Hong-lie Qiu, Wei Zhao","doi":"10.1002/(SICI)1520-6319(199822)2:2<77::AID-AGS1>3.0.CO;2-O","DOIUrl":"10.1002/(SICI)1520-6319(199822)2:2<77::AID-AGS1>3.0.CO;2-O","url":null,"abstract":"With the rapid increase in spatial data, especially in the NASA–EOS (Earth Observing System) era, it is necessary to develop efficient and innovative tools to handle and analyze these data so that environmental conditions can be assessed and monitored. A main difficulty facing geographers and environmental scientists in environmental assessment and measurement is that spatial analytical tools are not easily accessible. We have recently developed a remote sensing/GIS software module called ICAMS (Image Characterization And Modeling System) to provide specialized spatial analytical tools for the measurement and characterization of satellite and other forms of spatial data. ICAMS runs on both the Intergraph–MGE and the Arc/Info Unix and Windows–NT platforms. The main techniques in ICAMS include fractal measurement methods, variogram analysis, spatial autocorrelation statistics, textural measures, aggregation techniques, normalized difference vegetation index (NDVI), and delineation of land/water and vegetated/non-vegetated boundaries. In this article, we demonstrate the main applications of ICAMS on the Intergraph–MGE platform using Landsat–Thematic Mapper images from the city of Lake Charles, Louisiana. Through the availability of ICAMS to a wider scientific community, we hope to generate various studies so that improved algorithms and more reliable models for environmental assessment and monitoring can be developed. © 1998 John Wiley & Sons, Inc.","PeriodicalId":100107,"journal":{"name":"Applied Geographic Studies","volume":"2 2","pages":"77-93"},"PeriodicalIF":0.0,"publicationDate":"2013-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/(SICI)1520-6319(199822)2:2<77::AID-AGS1>3.0.CO;2-O","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74459146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 33

Exploring the potential environmental sources and associations of childhood lead poisoning 探索儿童铅中毒的潜在环境来源和关联

Applied Geographic Studies Pub Date : 2013-08-06 DOI: 10.1002/(SICI)1520-6319(199724)1:4<253::AID-AGS3>3.0.CO;2-0

Florence Lansana Margai, Stephen G. Walter, John G. Frazier, Ronald Brink

引用次数: 3

How the parts fit together 各个部分是如何组合在一起的

Applied Geographic Studies Pub Date : 2013-08-06 DOI: 10.1002/(SICI)1520-6319(199721)1:1<1::AID-AGS1>3.0.CO;2-5

Milton Harvey PhD

引用次数: 0

The geographic distribution of nurse practitioners in the United States 美国执业护士的地理分布

Applied Geographic Studies Pub Date : 2013-08-06 DOI: 10.1002/(SICI)1520-6319(199724)1:4<287::AID-AGS5>3.0.CO;2-Y

Ge Lin, Patricia A. Burns, Thomas H. Nochajski

{"title":"The geographic distribution of nurse practitioners in the United States","authors":"Ge Lin, Patricia A. Burns, Thomas H. Nochajski","doi":"10.1002/(SICI)1520-6319(199724)1:4<287::AID-AGS5>3.0.CO;2-Y","DOIUrl":"10.1002/(SICI)1520-6319(199724)1:4<287::AID-AGS5>3.0.CO;2-Y","url":null,"abstract":"This study analyzed the geographic distribution of nurse practitioners in the United States. Primary data on nurse practitioners were obtained from State Boards of Nursing and the District of Columbia in the spring of 1994. At the state level, nurse practitioners were more concentrated in urban areas than their physician counterparts. Of the 33,094 certified nurse practitioners, 85% were in metropolitan areas. Results from the dissimilarity indices between nurse practitioners and general populations showed that a greater supply of nurse practitioners in a state may not necessarily lead to an equitable distribution across counties. At both the state and county levels, the supply of nurse practitioners was positively associated with the supply of primary care physicians. Results from multivariate analyses show that nurse practitioners were more likely to locate in a county where state laws allowed independent practice. States that allow independent practice and direct third-party reimbursement will likely have greater availability and a larger supply of nurse practitioners in rural counties. © 1997 John Wiley & Sons, Inc.","PeriodicalId":100107,"journal":{"name":"Applied Geographic Studies","volume":"1 4","pages":"287-301"},"PeriodicalIF":0.0,"publicationDate":"2013-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/(SICI)1520-6319(199724)1:4<287::AID-AGS5>3.0.CO;2-Y","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80476862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 14

GIS-based emergency response planning in a Mexico–U.S. border community 基于gis的墨西哥-美国应急响应规划。边境社区

Applied Geographic Studies Pub Date : 2013-08-06 DOI: 10.1002/(SICI)1520-6319(199822)2:2<111::AID-AGS3>3.0.CO;2-4

Sean J. Cannon, Thomas Kontuly, Harvey J. Miller

引用次数: 4