Description: This map shows the current distribution of greater sage-grouse habitat over different types of federal lands. The map was the product of a lab done in the course “Geospatial Technology” taught by the instructor John Beltran at Central New Mexico Community College.
Description: By following an online tutorial, I took a point layer of maritime piracy incidents, created a heatmap visualization and created an animation of how the piracy hot-spots have changed over past 2 decades.
Tutorial: Animating Time Series Data (QGIS3) — QGIS Tutorials and Tips
Description: This thematic map shows rice paddy yield of the 63 provinces of Vietnam. The map makes it easy to identify the regions with the highest yield. As expected, the Red River delta and the Mekong River deltas are among the highest yield regions.
Data: provided by the general statistics office website of the Vietnamese government.
Tools: QGIS
Description: Following a tutorial, I used a shapefile of census tracts for California and a population data table from US Census Bureau to create a population density map for California.
Tutorial: Performing Table Joins (QGIS3) — QGIS Tutorials and Tips
Description: This is the product of a tutorial I followed. For this tutorial, I downloaded a dataset of earthquakes between 1900-2000 from NOAA’s National Geophysical Data Center. I then imported the tab delimited file into QGIS. I went a little further by adjusting the symbology to graduated based on the earthquake magnitude.
Tools: QGIS, file manager, layer properties/symbology.
Tutorial: Importing Spreadsheets or CSV files (QGIS3) — QGIS Tutorials and Tips
Description: This is the product of a tutorial I followed from qgistutorials.com. Using a dataset of populated places worldwide, this map shows only the places which are both capital cities and have a population greater than 1 million.
Tools: QGIS, select features by expression
Source: Working with Attributes (QGIS3) — QGIS Tutorials and Tips
Twice a week, participants meet in Zoom to practice English. The meetings involve small group discussions in breakout rooms where the participants speak with each other about a discussion prompt. Conversations last 5 minutes and involve 2-4 students. Over the course of about 8 months in 2023, there was a total of 278 separate small group conversations involving 52 participants from 21 different provinces across 2 countries. The meetings are free and open, so attendance varies by location as people find the class on their own or are invited by friends. However, most participants are in Vietnam due to efforts early on to advertise in Vietnam, and also the design of the class and content being made to suit a Vietnamese audience.
Description: Shows the change over a 10-year period in the built-up area within the municipal boundary of Thai Nguyen city, Vietnam.
Data: Landsat 8 images
Tools: QGIS, Semi-automatic Classification Plugin
Description: Shows the catchment area and contributing streams which feed the Sông Cầu in Thái Nguyên province, Vietnam . The two cities, Thái Nguyên and Bắc Kạn, are shown. Hydrological data was obtained from Hydrosheds.org, and elevation data was obtained from SRTM. Map was created in QGIS by Yoshua Reece, 2024.
Tools: QGIS, SRTM downloader plugin, clip.
Data: Hydrosheds.org, SRTM elevation data.
Description: This map shows the distribution of surface vegetation in Thai Nguyen, Vietnam. An NVDI analysis was done using Landsat 8 images. The resulting raster was then made into a vector grid by overlaying a grid and using the zonal statistics tool. Finally, the primary roads and motorways are OSM data.
Tools: QGIS
Data: Landsat 8, OSM