Updating Traditional 1/50,000 Topographic Maps Using Crowd-Sourced Geodata and Free Sources Satellite Images
Atef Belhaj Ali, Mohamed Hafedh Hamza

J. Geogr. Inf. Syst. Vol.13 No.2, April 27, 2021
DOI:10.4236/jgis.2021.132015

Mapping and Characterization of the Landscape Units of the Coastal Hydrographic Basin of Rio Pacoti, Ceará, Brazil
Álvaro Andrade Dourado, José Falcão Sobrinho, Francisca Edineide Lima Barbosa, Ernane Cortez Lima

J. Geogr. Inf. Syst. Vol.13 No.2, April 26, 2021
DOI:10.4236/jgis.2021.132014

Multi-Hazard Evaluation Using Cluster Analysis—For Designated Evacuation Centers of Yokohama
Tsutomu Ochiai, Takahisa Enomoto

J. Geogr. Inf. Syst. Vol.13 No.2, April 25, 2021
DOI:10.4236/jgis.2021.132013

Drilling in the Water by “Creating a Safe and Free Passage for the Movement of People and Equipment between the Surface and the Bottom”, Using Several Methods for Extracting Natural Resources and Scientific Research
Walid Nabil

J. Geogr. Inf. Syst. Vol.13 No.2, April 20, 2021
DOI:10.4236/jgis.2021.132012

Comparison of Geographically Weighted Regression of Benthic Substrate Modeling Accuracy on Large and Small Wadeable Streams
Ken R. Sheehan, Stuart A. Welsh

J. Geogr. Inf. Syst. Vol.13 No.2, April 01, 2021
DOI:10.4236/jgis.2021.132011