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The Drava River through miles and seasons

Country:Croatia, Croatia
Student(s):Nina Gavranović, Sandra Slunjski, Borna Nikolić, Leonora Majstorović, Kristina Puškadija and Lucija Mađarić
Grade Level:Secondary School (grades 9-12, ages 14-18)
GLOBE Teacher:Marina Balažinec, Lidija Tivanovac
Contributors:Lidija Tivanovac (Primary School Ivana Kukuljevica) - also mentor, not additional contributor. That is join project.
Report Type(s):International Virtual Science Symposium Report
Protocols:
Presentation Poster: View Document
Optional Badges:I am a Collaborator
Language(s):
Date Submitted:03/28/2017
Drava is the longest European river. It enters Croatia at Ormoz, and flows into the Danube near Aljmas. The entire length of the flow is 720 km. Annual average flow rate of Drava is 1- 1.5 m/s, which indicates a relatively fast flow and high mechanical strength, which erodes the coast. For the Drava river is characteristic glacial water regime which means maximum water draft from May to July, lowest draft of water from December to February. Drava is of great importance for two very distant cities - Varazdin and Belisce. This distance attracted us to do joint project. Drava dictates development, location and climate of the cities, which is why we were very interested in research.



Comments

Thank you for submitting your interesting project.
I have a few questions regarding your project.

Did you sample at both locations or did you collaborate with another GLOBE school to collect your data in 2 locations?

Why do you think the water clarity is so different between the two sites?
We didn't sample at both locations, but we collaborated with another school to collect data in 2 locations.

The water clarity is different because of the riverbed. In Belišće, it is sandy and in Varaždin it is gravel.
Do you feel there are steps that people living near the Drava River in Varazdin and Belisce can take based on your research to improve condition in their towns which are related to the river?
With the use of our research, we are able to predict floods and provide early warnings in order to protect the area. We use the water from the river Drava for drinking and that's why are the data about the river important to us and we can rely on them.
Hello all,
Good work.The conclusion was well written with some supporting literature.

Do you think your sampling site in the river will make a difference in the transparency of water?
The water clarity in Belišće may be caused by sandy and muddy riverbed, which differs from the one 145 miles away situated Varaždin.