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 images are presented in color infrared which shows vegetation in red rather than green for better contrast.
At Summer Solstice things are still greening up while at Fall Equinox the fields are all green and some are beginning to be harvested.
Observe the different states of the lake: open water, snow covered, and frozen.
The topography of the landscape (ie. hills and roughness) are much more apparent with snow on the ground. In the summer/fall images, it all looks flat.
It’s another Throwback Thursday. Saylorville Lake and Dam are located in Central Iowa northwest of Des Moines, Iowa. The Saylorville complex was built to help with flood control and as a drinking water source for surrounding communities. At normal levels, the Saylorville reservoir stores 21.1 billion gallons of water with capacity at flood levels to hold 204.1 billion gallons of water.
Landsat 1 – 1976Landsat 3 – 1980
Below are several resources if you are interested to learn more about this important structure north of Des Moines:
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.
As the summer approaches, we wanted to encourage you to save the date for an upcoming GIS workshop for K-12 educators being held at William Penn University in Oskaloosa, Iowa on July 20-21, 2022. See attached poster for more details. Also please send us an email if you are interested but can’t make this event. If there is enough interest, we may hold a second workshop, in August or the fall.
Please contact Amy Logan or Debbie Stevens with any questions.
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 read more about the park at the Iowa Department of the Natural Resources Brushy Creek page: https://www.iowadnr.gov/portals/idnr/uploads/parks/parkmaps/brushycreekmap.pdf
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.
This year NASA’s Earth Day poster is features a series of QR codes which provide an array of information on a number of their missions, programs, and activities. We have provided a key below explaining each of the numbered QR codes along with the link to each code (click on the name to follow the link.)
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
What: VIRTUAL AND IN-PERSON EVENT Virginia Tech Office of GIS and Remote Sensing Research Symposium We have an exceptional panel of speakers on hand this year representing Duke University, NASA (Emerita), and Virginia Tech. Another highlight of the Symposium, is the student poster session & web map app showcase with over 35 undergraduate and graduate student posters on full display! When: 4/8/22 @ 12pm-3:30pm (Eastern) Registration (free): https://virginiatech.zoom.us/webinar/register/WN_n0l1pRCTTSWgDeP7Jwx47Q
What: VIRTUAL AND IN-PERSON EVENT Iowa Technology and Education Connection (ITEC) Conference ITEC is hosting the annual conference on April 13-14. Join fellow Iowa educators at the state’s premier Tech Ed event! IowaView staff will be presenting on April 14 at 1:15 -2:05pm – Spreading the Mapping Bug: Sharing Geospatial Resources, Ready-to-Go Curriculum, and Mapping Activities for Teachers to Use Tomorrow and Integrate into Their Lessons. Great for student engagement. Many of these materials align with core standards and resources include interactive maps and apps available immediately. When: 4/14/22 @ 1:15-2:05pm Registration: https://www.itec-ia.org/conference-registration-details/
What: VIRTUAL EVENT GeoTech Center – Earth Observation Day
Enjoy this water themed poster “Water Today and for the Future” from the AmericaView’s Earth Observation Day Team. This poster contains the creative game experience to help bring understanding to how water resources in America are used and managed for future use. You can download the poster and you can play the game online on Tabletopia. The poster is available in Spanish.
The Ladies of Landsat have shared some great USGS case study videos showcasing the paths women and girls can take to become remote sensing scientists. Three scientists stories are highlighted: Jill Deines, Africa Ixmucane Flores-Anderson, and Nikki Tulley. Read more and enjoy their stories below:
Nikki Tulley: Speaking a New Language of Landsat – Nikki grew up in the Navajo Nation without running water in her household. As PhD student at University of Arizona and Indigenous scientist, she uses Landsat to track drought conditions in her home community.
The Iowa Map Contest is open. This year we would like to give out all our prize money. If you know students in grade 4-12 or teachers encourage them to participate. For contest details, visit: https://sites.google.com/site/iowamapcontest/.
