Tag Archives: imagery

A New Iowa as Art Piece – Cautionary Waters

By AmericaView, Announcement, Education, Environmental Change, Imagery, Iowa as Art, IowaShots, Landsat, Observation, Remote Sensing, , , , , ,

The piece asks viewers to reflect: when we are planning, do we consider only typical conditions, or does our planning account for extremes, flood or drought as well?  Are we willing to allow development in the floodplain and take the loss when the flood comes, or perhaps make a harder choice to not develop there and lose out in the short-term?  Also, in cases when we choose to develop in lower elevation areas, what kinds of zoning and development are we allowing in these areas?

Thanks for coming out to celebrate GIS Day with us!

By Education, Event, Geography Awareness Week, Outreach, , , , , , , , , , , , ,

On Wednesday, November 20, we had a great GIS Day celebration at The Catalyst in Parks Library. Thank you to library digital scholarship staff for hosting us and providing their expertise. We had five speakers sharing on different topics: Visit the ISU GIS Facility GIS Day website for more details about the speakers: https://www.gis.iastate.edu/gis-day-2024 The

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Disaster at Lake Delhi – #Landsat50

By #Time Lapse Tuesday, Environmental Change, Imagery, Landsat, Landsat Golden Jubilee, Outreach, Remote Sensing, USGS, , , , , , , , , , , ,

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

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Celebrating 50 years of Landsat Earth Observation!

By Announcement, Education, Imagery, Landsat, Landsat Golden Jubilee, NASA, Observation, Outreach, Story Map, USGS, , , , , , , , , , , , ,

Saturday, July 23, 2022 marked the 50th anniversary of the launch of the USGS/NASA Landsat earth observing satellite mission. With the launch in 1972, Landsat has continued its earth observation mission and become the longest continuous earth observing satellite. Enjoy this video recalling the launch and explaining the beginning of the earth observing satellite mission,

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Happy Summer Solstice Week! Let’s head to the lake!

By Education, Imagery, Landsat, Landsat Golden Jubilee, Observation, Outreach, USGS, , , , , , , , , , ,

We are continuing our celebration of the 50th year of the US Landsat satellite imagery program. This week we are heading to the lake – Clear Lake, Iowa, located in north central Iowa. Below are four images showing Summer Solstice (6/13/2019), Fall Equinox (9/17/2019), Winter Solstice (12/22/2019), and Spring Equinox (3/18/2019) from Landsat 8. The

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Traveling Way Back – Landsat Images From Aprils Gone By

By #Throwback Thursday, Education, Environmental Change, Imagery, Landsat, Landsat Golden Jubilee, Observation, Phenology, Remote Sensing, Resource, , , , , , , , , , , , , ,

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

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#TimeLapse Tuesday – Spot the Change – Urban Growth of Ankeny, Iowa

By #Time Lapse Tuesday, Education, Environmental Change, Imagery, Landsat, Landsat Golden Jubilee, Observation, Remote Sensing, , , , , , , , ,

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

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Summer 2021 NAIP Imagery Now on ISU Orthoserver

By Announcement, Imagery, Iowa Geographic Map Server, Outreach, Tutorials, , , , , , ,

Iowa Statewide summer 2021 imagery is now available as a webservice from the Iowa Geographic Map Server. https://ortho.gis.iastate.edu/arcgis/rest/services/ortho Please note: you may have to adjust the symbology to get the best color. Here are some suggestions for doing this is ArcGIS Pro, within the Symbology tab, use the dropdown menus to adjust the color. Change

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