Tag Archives: Eastern Iowa

Disaster at Lake Delhi – #Landsat50

By iowaviewAugust 31, 2022#Time Lapse Tuesday, Environmental Change, Imagery, Landsat, Landsat Golden Jubilee, Outreach, Remote Sensing, USGS#IowaView, #Landsat, #Landsat50, 2010 Dam Breach, change over time, Delaware County, Eastern Iowa, imagery, Lake Delhi, Landsat Golden Jubilee, Outreach, Remote sensing, Water Wednesday

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 dam is restored.

This year we are celebrating 50 years of the Landsat earth observing satellite mission. Landsat data helps us observe changes in our communities and environment over time.

2016 Imagery available for Eastern Iowa!

By iowaviewDecember 5, 2016Article, Imagery2016 Spring Imagery, 4 band imagery, Color infrared, Eastern Iowa, Iowa Geographic Map Server, Natural Color

Spring 2016 ortho imagery is now on the Orthoserver – http://ortho.gis.iastate.edu/. ISU GIS Facility staff created natural color, color-infrared, and 4 band image services for the spring 2016 aerial flight of the eastern half of Iowa. The source resolution is 1 foot. The services can be found at: http://ortho.gis.iastate.edu/arcgis/rest/services/ortho .

2016-ortho