Welcome to another Throwback Thursday. Today we are going back into the archives to compare imagery from the first five Landsat satellites (all images are featured in natural color). Click on each image for a closer view. Try to notice the differences in resolution and image quality between the different years. Another thing to note
Today’s time lapse video is highlighting the damming of Brushy Creek and the creation of 690-acre Brushy Creek Lake, Iowa’s deepest artificial lake. Watch the dam development begin around 1994 and then the lake begin to fill around 1998. The Brushy Creek State Recreation Area is a 6500-acre park located in north central Iowa. To
What changes do you notice in this Landsat time lapse video? 1) The areas of purple and white in the image are urban areas. Throughout the video they fill in the area from the bottom to the center. The pink areas are farm land. 2) Did you notice the increase in the number of retention
This year marks the 50th anniversary of the launch of the first Landsat satellite (July 23, 1972). To celebrate fifty years of earth observation, IowaView will be posting various images and gif documenting Landsat in Iowa and around the world. Check back regularly for new images and articles. #TimeLapseTuesday #ThrowbackThursday
USGS just released a Story Map summary wrapping up 2021 and the exciting developments with the Landsat mission including a newly launched satellite and 10 million scenes in the archive mark two high points. Here’s the link to explore it yourself: https://geonarrative.usgs.gov/launching-into-a-new-year/
Greetings from Camp Landsat! This week’s camp theme is Cities and Suburbs and focuses on the growth of cities and urban areas as seen over time through Landsat images. Urban growth has impacts on the surrounding environment. Visit Camp Landsat to learn more and experience a time-laspse video of urban growth in Qatar, a storymap
IowaView staff have released the Cover Crop ID Toolbox and Handbook. This toolbox allows users to quickly identify possible cover crop fields using three Sentinel-2 images from the fall, early spring, and late spring downloaded from the Earth Explorer website based on field boundaries supplied by the user. On the project webpage you can download
Today, Mike Daniels from the University of Arkansas will be presenting about how the Arkansas Discovery Farm is reducing nutrient loss, defining and building soil health, improving irrigation efficiency and edge-of-field monitoring of runoff. His statewide Extension efforts encourage agricultural producers to adopt conservation practices to protect natural resources and improve agricultural sustainability. Here is
Happy Earth Observation Day!
Today we are celebrating remote sensing, the study of the earth using secondary observations from instruments such as planes, kites, drones, satellites as an exciting and powerful educational tool to help us show changes over time.
This year the AmericaView/NASA team has put together a fun and beautiful educational poster!
This week marks 40 years since the Mount St. Helens eruption. The image above is from the USGS Earthshots trading card series. The images are displayed in color infrared which is useful for showing living vegetation in red. The mountains surrounding Mount St. Helens are primarily forest. Notice the extreme change in the landscape from