Challenge #1 Hints
To help you solve the puzzle of Challenge #1, we will be sharing helpful suggestions site specific hints throughout the next 3 weeks. Keep an eye out for emails from Asher to keep you informed of when new hints are added to the site.
Below is a few webites that you may find helpful when viewing water quality data for the Red River.
*** If you have not read through the introduction presentation – make sure to start there ***
The IWI mapping portal allows users to view subwatershed boundaries, lidar data, and access a variety of tools. Lidar data allows us to view elevation change accross the surface of the earth.
Watershed Pollutant Load Monitoring
This monitoring network collects pollutant data from rivers across the state of Minnesota.
Stream Stats has some similar tools to the mapping portal, though it does not have a lidar layer. The site does incoporate gauging sites and allows you to create elevation cross sections and create flow paths.
Week #1 Hints for Challenge #1
Hint #1 –
Did you know Google Earth lets you view previous satellite imagery? Site RR-320 had a bridge replacement project from 2009-2011.
– If you do not have access to Google Earth, explore the base layers in the IWI Map Portal –
Hint #2 –
The TSS concentration at Point K is 67.6 units lower than the site with the highest TSS concentration.
Hint #3 –
The riparian area of the river is great wildlife habitat – in fact, you might see a “bird” near Site RR-589.
Hint #4 –
Site 996 is located to the east of a town that is the 11355th most common last name in the US.
Week #2 Hints for Challenge #1
Hints #5 –
Data from site 220(228) was collected at a site where an oxbow lake is formed when the river morphs a new path and cuts off a section of a meander. This site could also be a great place to find a “birdie.”
Hint #6 –
Site G’s TP value is the same forward as it is backward.
Hint #7 –
Data from RR-423 was collected from a bridge just downstream from a monument that is named after an amphibian.
Hint #8 – A majority of the lab parameters collected at point F were the highest of the lab data collected at any of the sites.
Week #3 Hints for Challenge #1
Hint #9 – Point E on the map is home to a site whose name is numerical order.
Hint #10 – Point L’s total phosphorus value is 6th highest of all values.