Daryoi Odra

Odra, Oder (ba Chekhiyu pol. Odra; nem. Oder), daryo dar Evropai Garbi. Az kuhhoi Sudeti Sharki (Chekhos­lovakiya) ibtido yofta, bad ba territoriyai Polsha meguzarad. Pas az hamrohshavii daryoi Nisa-Lujiska qad-qadi sarhadi Polshayu Respublikai Demokratii Germaniya jori shuda to shahri Grifino merasad va dar okhir ba khaliji Shesipi bahri Baltika merezad.

Tulash 903 kilometr, masohati havzaash qarib 125 hazor kmlometr². Shokhobi asosiash: az janubi — Bubr va Nisa-Lujiska; az rost — Varta. Poyontar az rezishgohi daryoi Nisa-Lujiska Odra serbar (ziyoda az 200 metr) va purob ast. 84 kilometr bolo­tar az rezishgohi on ba 2 shokha taqsim meshavad, ki garbiash kishtigard meboshad. Manban ob — barfu boron. Davrai serobiash bahoron.

Sarfi miyonai ob dar nazdikii rezishgoh 480 metr³/soniya, maksimaliash 3000 metr³/soniya. Ba vositai Odra ba bahr sole 16 kilometr³ ob jori meshavad. Tanho dar zimistoni qahratun yakh mebandad. Az rezishgohi daryoi Opava (Chekhos­lovakiya) poyon kishtihoi khurd va az shahri Kozle (Polsha) poyon kishtihoi kalon raftuo dorand. Odra ba vositai kanalho bo daryohoi Elba va Visla aloqamand ast. Dar sohilhoi Odra  shtathoi Ostrava (Chekhoslovakiya), Opole, Vroslav, Shesin (Polsha), Frankfurta Oder (Respublikai Demokratii Germaniya) joygir shudaand.