Next week, IowaView and the ISU GIS Facility will be hosting an Earth Observation Day celebration, on Tuesday, October 15, from 10:00 to 11:30 in Durham 206 as part of Earth Science Week 2024. Here’s the schedule: 10:00 – 10:30 Dr. Antonio Arenas, Civil Construction & Environmental Engineering Topic: Google Earth Engine and Open ET (Evapotranspiration)
The Iowa Geographic Map Server is a gem of historical and contemporary statewide aerial imagery for Iowa from the 1930s to 2021. It also has many other statewide layers including: Here’s your challenge: Zoom into your city or a place of significance to you and discover how it has changed over the years, look at
This is an excellent challenge to test your geography skills and identify natural features from aerial imagery.
This week we are exploring urban growth in Ames, Iowa. The red areas are showing areas of vegetation that are primarily agricultural in the larger areas, the neon green areas are short grass and trees, the gray color is urban areas, and blue areas are water. As you watch the time lapse video notice several
Celebrating 30 years of GIS at ISU today on GIS Day! We also celebrated the 50th anniversary of Landsat and were able to hand out playing cards, refreshments, posters, and other educational materials. This was a great opportunity for our staff in the GIS facility to share the work that they are doing, and teach
Happy Fall! Observe the changes across the landscape in seasonal images in Northeast Iowa. Snow, forest, farmland. Can you notice the areas of coniferous trees versus deciduous trees and where there is seasonal farmland compared to pasture areas? Also notice the changes along the Mississippi and Upper Iowa Rivers. Enjoy the changing seasons! This year
Iowans are working to reduce emissions by moving to renewable energy sources.
Well, it’s Water Wednesday. Today’s Landsat highlight is a time lapse video (2007-2017) showing the effect of a 2010 dam breach on the water level of Lake Delhi located in Delaware County in eastern Iowa. Notice the dramatic decrease in water and the exposure of large sandbars and the refilling of the lake as the
Use sliders to compare images. Today’s image shows an area in northwest Iowa between Spencer (Clay County) and Emmetsburg (Palo Alto County). The two images on the left are showing water levels in 1990 (typical year) and 2022 (recovering from a drought) compared to 1993 (heavy flooding) and 2008 (flooding). Notice the swollen streambanks and
View 2020 LiDAR on the Iowa Geographic Map Server.