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PROMENE U ŠIRINI I DUBINI TOPČIDERSKE REKE OD IZVORA KA UŠĆU


                  CHANGES IN THE WIDTH AND DEPTH OF TOPCIDER RIVER DOWNSTREAM

               Autori : Vedrana Đorđevid i Aleksandar Karlid III2, , Opšta Gimnazija “Milutin Milankovid”, Beograd
               Mentor: mr Jelena Lukovid

               Cilj ovog istraživanja jeste da dokažem kako se menjaju širina i dubina Topĉiderke reke idući nizvodno. U
               uvodu ja ću dati taĉnu lokaciju ĉitavog sliva, kao i  opšte fiziĉko- geografske karakteristike.

               U cilju da istražim ova postavljena pitanja, sakupila sam tzv. primarne podatke. Ti podaci se odnose na
               merenja  pojave  koju  istražujem,  tako  da  sam  analizirala  dobijene  podatke.  Merenja  sam  izvršila  na  3
               lokacije u toku Topĉiderske reke: A,B i C.

               U  dobijenim  rezultatima  se  vidi  da  se  širina  i  dubina  povećavaju  polazeći  od taĉke  A  koja je najbliža
               izvoru, ka taĉki C koja se nalazi na ušću Topĉiderske reke u Ĉukaricki rukavac, odnosno u reku Savu.

               U tabelarnom prikazu( tabela br. 2)  se takoĊe vidi i da je brzina znatno veća na lokaciji A nego na lokaciji
               C.

               Zakljuĉak  je  izveden  na  osnovu  statistiĉkih  podataka  koji  pokazuju  promene  dubine  i  širine  idući
               nizvodno. Na osnovu tih analiziranih podataka, dokazala sam da je moja hipoteza bila tacna.


                                                         Summary

               The aim of this research is to prove how does width and depth of Topcider river change downstream. In
               the  introduction  i  will  give  precise  location  of  entire  basin,  as  well  as  general  physical-gegraphical
               characteristics.


               In  the  aim  to  research  these  asked  questions,  i  collected  so-called  primary  data.  This  data  refers  to
               measuring phenomenon i enquire, so i analised data that i’ve obtained. I made these measurements at 3
               locations of Topciderka’s river flow: A, B and C.

               Obtained results show that the width and depth increase starting at location A that is the closest to the
               source, towards location C that is located at the confluence of Topcider river and Cukaricki rukavac, that
               is river Sava.

               In the spreadsheet (table no. 2) can be seen that also the velocity is notably far more bigger at location A
               than at location C.

               Conclusion  is  derived  on  the  basis  of  statistic  informations  that  show changes  in  the  width  and  depth
               downstream. Based on these statistic information, i proved that my hypothesis was correct.



               Key words: Topcider river,depth, width, discharge
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