Abstract
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 mapping.
| Original language | English (US) |
|---|---|
| Article number | 2TOT3 |
| Journal | Journal of Extension |
| Volume | 57 |
| Issue number | 2 |
| State | Published - Apr 1 2019 |
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Keywords
- Extension and geospatial technologies
- Geographic information system (GIS)
- Misrepresentation in GIS use
ASJC Scopus subject areas
- Education
Cite this
(Mis)communicating with geographic information system mapping : Part 1-choosing unit of representation. / Cantarero, Rodrigo; De Guzman, Maria R; Taylor, Sarah; Hong, Soo-Young; Choi, Jeong Kyun.
In: Journal of Extension, Vol. 57, No. 2, 2TOT3, 01.04.2019.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - (Mis)communicating with geographic information system mapping
T2 - Part 1-choosing unit of representation
AU - Cantarero, Rodrigo
AU - De Guzman, Maria R
AU - Taylor, Sarah
AU - Hong, Soo-Young
AU - Choi, Jeong Kyun
PY - 2019/4/1
Y1 - 2019/4/1
N2 - 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 mapping.
AB - 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 mapping.
KW - Extension and geospatial technologies
KW - Geographic information system (GIS)
KW - Misrepresentation in GIS use
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UR - http://www.scopus.com/inward/citedby.url?scp=85064510941&partnerID=8YFLogxK
M3 - Article
VL - 57
JO - Journal of Extension
JF - Journal of Extension
SN - 1077-5315
IS - 2
M1 - 2TOT3
ER -