Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 4 of 4
Full-Text Articles in Architecture
(Mis)Communicating With Geographic Information System Mapping: Part 1--Choosing Units Of Representation, Rodrigo Cantarero, Maria Deguzman, Sarah Taylor, Soo-Young Hong, Jeong-Kyun Choi
(Mis)Communicating With Geographic Information System Mapping: Part 1--Choosing Units Of Representation, Rodrigo Cantarero, Maria Deguzman, Sarah Taylor, Soo-Young Hong, Jeong-Kyun Choi
Community and Regional Planning Program: Faculty Scholarly and Creative Activity
Extension professionals are increasingly using geographic information system (GIS) technology to develop and inform programs and services. In this article, we use a mapping exercise to demonstrate how the unit of data can be applied and inadvertently misrepresented in GIS mapping. We contrast the use of counts, percentages, and location quotients with the same data and the resulting divergence in maps. The discussion addresses ideal circumstances for using each unit of data. Overall, the article illustrates the need for Extension professionals to be cognizant of the benefits and limitations of various units of data to avoid miscommunication when using GIS …
(Mis)Communicating With Geographic Information System Mapping: Part 2—Determining Data Cutoffs, Rodrigo Cantarero, Maria Deguzman, Sarah Taylor, Soo-Young Hong, Jeong-Kyun Choi
(Mis)Communicating With Geographic Information System Mapping: Part 2—Determining Data Cutoffs, Rodrigo Cantarero, Maria Deguzman, Sarah Taylor, Soo-Young Hong, Jeong-Kyun Choi
Community and Regional Planning Program: Faculty Scholarly and Creative Activity
The increasing use of geographic information system (GIS) technology in various fields suggests the need for professionals, including those in Extension, to be mindful of communicating data accurately and effectively. This article examines approaches to creating classes or groupings within data as well as the weaknesses of each approach. Data break units discussed in the article include equal intervals, quantiles, and units resulting from natural breaks. Ideal situations for each type of data break are presented. The article emphasizes the need for Extension professionals to consider the effects of data grouping to avoid miscommunication when using GIS mapping.
Developing A Restorable Wetland Index For Rainwater Basin Wetlands In South-Central Nebraska: A Multi-Criteria Spatial Analysis, Zhenghong Tang, Xu Li, Nan Zhao, Ruopu Li, F. Edwin Harvey
Developing A Restorable Wetland Index For Rainwater Basin Wetlands In South-Central Nebraska: A Multi-Criteria Spatial Analysis, Zhenghong Tang, Xu Li, Nan Zhao, Ruopu Li, F. Edwin Harvey
Community and Regional Planning Program: Faculty Scholarly and Creative Activity
It is always challenging for decision makers to prioritize wetland conservation programs at the landscape scale. This study employed a GIS-based multi-criteria spatial decision support tool that identified locations with the highest restoration potential for wetland conservation programs in the Rainwater Basin in south-central Nebraska. Five indicators were considered to assess wetland restoration potential: (1) Vegetation characteristics; (2) Soil characteristics; (3) Water volume released from hydrological modification of agricultural irrigation pits; (4) Topographical depression status; and (5) Habitat condition. The results suggested 192 (1.6% of the total) hydric soil footprints as the highest prioritized locations for future wetland restoration programs. …
Identifying Potential Conflict Associated With Oil And Gas Exploration In Texas State Coastal Waters: A Multi-Criteria Spatial Analysis, Samuel Brody, Himanshu Grover, Sarah Bernhardt, Zhenghong Tang, Bianca Whitaker, Colin Spence
Identifying Potential Conflict Associated With Oil And Gas Exploration In Texas State Coastal Waters: A Multi-Criteria Spatial Analysis, Samuel Brody, Himanshu Grover, Sarah Bernhardt, Zhenghong Tang, Bianca Whitaker, Colin Spence
Community and Regional Planning Program: Faculty Scholarly and Creative Activity
Recent interest in expanding offshore oil production within waters of the United States has been met with opposition by groups concerned with recreational, environmental, and aesthetic values associated with the coastal zone. Although the proposition of new oil platforms off the coast has generated conflict over how coastal resources should be utilized, little research has been conducted on where these user conflicts might be most intense and which sites might be most suitable for locating oil production facilities in light of the multiple, and often times, competing interests. In this article, we develop a multiple-criteria spatial decision support tool that …