2009 17th International Conference on Geoinformatics最新文献_第8页

Inversion modeling of chlorophyll-a concentration in water by multi-angle polarized reflection 多角度偏振反射水体叶绿素-a浓度的反演模拟

2009 17th International Conference on Geoinformatics Pub Date : 2009-10-23 DOI: 10.1109/GEOINFORMATICS.2009.5293563

Yang Han, Yunsheng Zhao, Yun-feng Lu, Yeqiao Wang

引用次数: 1

KIDGS: A geographical knowledge-informed digital gazetteer service KIDGS:一个地理知识的数字地名词典服务

2009 17th International Conference on Geoinformatics Pub Date : 2009-10-23 DOI: 10.1109/GEOINFORMATICS.2009.5293495

Yu Liu, Runqiang Li, Kaichen Chen, Yihong Yuan, Lingli Huang, Hao Yu

引用次数: 11

Using mobile sensors for in-situ monitoring of debris flows in Taiwan 利用移动传感器对台湾泥石流进行现场监测

2009 17th International Conference on Geoinformatics Pub Date : 2009-10-23 DOI: 10.1109/GEOINFORMATICS.2009.5293405

Hsiu-Yi Ko, Yao-Ming Fang, Ying Chang

引用次数: 2

Three dimensional Peer-2-Peer (3DP2P) networks 三维对等网络(3DP2P)

2009 17th International Conference on Geoinformatics Pub Date : 2009-10-23 DOI: 10.1109/GEOINFORMATICS.2009.5292845

Clayton G. Thomas, D. Watkins, C. Scott

引用次数: 0

Research on the geometry rectification model of infrared image of HJ-1B satellite with sparse ground control points 地面控制点稀疏的HJ-1B卫星红外图像几何校正模型研究

2009 17th International Conference on Geoinformatics Pub Date : 2009-10-23 DOI: 10.1109/GEOINFORMATICS.2009.5293483

Jingbo Chen, Zhongming Zhao, ChenYi Wang

引用次数: 1

Remote sensing drought monitoring under dense vegetation cover condition based on Perpendicular Drought Index 基于垂直干旱指数的茂密植被覆盖条件下的遥感干旱监测

2009 17th International Conference on Geoinformatics Pub Date : 2009-10-23 DOI: 10.1109/GEOINFORMATICS.2009.5293223

Zhe Li, Debao Tan, Yuanlai Cui, Sui Zhang

{"title":"Remote sensing drought monitoring under dense vegetation cover condition based on Perpendicular Drought Index","authors":"Zhe Li, Debao Tan, Yuanlai Cui, Sui Zhang","doi":"10.1109/GEOINFORMATICS.2009.5293223","DOIUrl":"https://doi.org/10.1109/GEOINFORMATICS.2009.5293223","url":null,"abstract":"Regional drought brought by global climate changes is menacing directly human's food supply and survival environment, and it becomes a hotspot of many scientists and government administrations. Remote sensing has many advantages such as large land cover, high spatial resolution, short time interval, and convenient data acquisition, which makes remote sensing drought monitoring become an important research field. In the NIR(Near Infrared)-Red reflectance spectral feature space, if it is supposed that the spectral characteristic of bare soil conforms to the linear distribution, PDI(Perpendicular Drought Index) is established (Zhan, 2005; Abuduwasit, 2004). In order to verify the feasibility of PDI under dense vegetation cover condition, Hubei Zhanghe Irrigation System is selected as research area, PDI is calculated with ETM+ data, and 2–5cm soil moisture in-situ observation is used for the purpose of comparing with PDI. Result shows that 2–5 cm in-situ observation and PDI calculation displays basically the same curve trend, their coefficient is 0.76, and it is consistent with insitu measured drought indicator. To sum up, PDI can effectively reflect local land cover and water-heat combination, which achieves many advantages such as simple, practical, easy-to-use, versatility and universality. And it is successful to monitor regional drought under dense vegetation cover conditions.","PeriodicalId":121212,"journal":{"name":"2009 17th International Conference on Geoinformatics","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134544881","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

Internet-based GIS for the Canadian Analogue Research Network 基于互联网的加拿大模拟研究网络GIS

2009 17th International Conference on Geoinformatics Pub Date : 2009-10-23 DOI: 10.1109/GEOINFORMATICS.2009.5293423

M. Germain, M. Phaneuf

引用次数: 1

Dynamic modeling of urban population travel behavior based on data fusion of mobile phone positioning data and FCD 基于手机定位数据与FCD数据融合的城市人口出行行为动态建模

2009 17th International Conference on Geoinformatics Pub Date : 2009-10-23 DOI: 10.1109/GEOINFORMATICS.2009.5293222

Jinxing Hu, Wenjing Cao, Jun Luo, Xiaomin Yu

引用次数: 20

The effect of healthy food accessibility on childhood obesity 健康食品可及性对儿童肥胖的影响

2009 17th International Conference on Geoinformatics Pub Date : 2009-10-23 DOI: 10.1109/GEOINFORMATICS.2009.5293562

Lauren Rosenshein, N. Waters

{"title":"The effect of healthy food accessibility on childhood obesity","authors":"Lauren Rosenshein, N. Waters","doi":"10.1109/GEOINFORMATICS.2009.5293562","DOIUrl":"https://doi.org/10.1109/GEOINFORMATICS.2009.5293562","url":null,"abstract":"The United States is facing an epidemic of childhood obesity, with obesity rates amongst children more than double what they were just 20 years ago. At the same time, research on the accessibility of healthy foods, especially in urban areas, has shown that certain populations are facing major barriers to a healthy diet. While there has been research on both the health consequences of childhood obesity and the deterioration of accessibility to healthy foods, there has been relatively little research on the relationship between the two problems. This paper will use a GIS based cluster analysis of Los Angeles County school level data on percentages of overweight 5th graders to expose clusters of overweight children in the area. Each school will be associated with a school polygon, which will represent the geographical area that the school serves. These school polygons will be used in the cluster analysis to locate areas with low accessibility to healthy foods. Several indicators will be used to establish an accessibility value, including distance to closest supermarket and the number of supermarkets within walking distance. The relationship between clusters of overweight 5th graders and low supermarket accessibility will then be examined. The results of the analysis indicate that a negative relationship exists between distance from the closest supermarket and childhood overweight. These results indicate the need for further research focusing on a smaller, more homogenous study area, a different measure of accessibility, or perhaps a regression technique that allows for spatial variation of the regression coefficients such as geographically weighted regression.","PeriodicalId":121212,"journal":{"name":"2009 17th International Conference on Geoinformatics","volume":"265 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116183161","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: 5

An evaluation of potential natural disaster response using the National Polar-orbiting Operational Environmental Satellite System (NPOESS) 利用国家极轨业务环境卫星系统(NPOESS)评估潜在的自然灾害响应

2009 17th International Conference on Geoinformatics Pub Date : 2009-10-23 DOI: 10.1109/GEOINFORMATICS.2009.5292934

M. Bowman, Kyle Foster, M. Wilkerson

引用次数: 2