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Kogin Calabar da ke jihar Cross River a Najeriya ya bi ta arewa daga birnin Calabar inda ya hade da babban kogin Cross River kimanin kilomita 8 kilometres (5.0 mi) zuwa kudu. Kogin Calabar yana samar da tashar jiragen ruwa na halitta mai zurfi sosai don tasoshin tare da daftarin 6 metres (20 ft) . [1]
| Kogin Calabar | |
|---|---|
 | |
| General information | |
| Labarin ƙasa | |
 | |
| Tsarin Daidaiton Labarin Kasa | 4°57′40″N 8°18′28″E |
| Kasa | Najeriya |
| Territory | Cross River |
River mouth (en)  | Kogin Cross River (Najeriya) |
Kogin Calabar ya kasance babban tushen bayi da ake saukowa daga ciki don jigilar su zuwa yamma a cinikin bayi na Atlantic. A shekarar 1860 ne aka dakile bautar, amma tashar jiragen ruwa ta Calabar ta kasance da muhimmanci wajen fitar da dabino da sauran kayayyaki, har sai da Fatakwal ta mamaye shi a shekarun 1920. Tare da ingantattun hanyoyin shiga cikin gida, Calabar ya dawo da mahimmanci a matsayin tashar jiragen ruwa kuma yana girma cikin sauri. Dajin ruwan sama mai zafi da ke cikin rafin Calabar yana cikin sauri yana lalata, kuma gurbacewar yanayi na rage kifaye da kamun kifin da ake kamawa a gabar tekun. Wadanda aka kama suna da matakan gurɓata marasa lafiya.
Kogin Calabar ya malala wani bangare na tsaunin Oban a dajin Cross River. [2] Ilimin kasa na rafin kogin ya hada da Massif Pre-Cambrian Oban Massif, Cretaceous sediments na gefen Calabar da kuma kwarin kwarjinin Neja Delta na baya-bayan nan.[ana buƙatar hujja] 43 kilometres (27 mi) fadi da 62 kilometres (39 mi) tsawo, tare da fadin 1,514 square kilometres (585 sq mi) A wani lokaci dazuzzukan ruwan sama ya rufe shi gaba ɗaya.[ana buƙatar hujja]
Yankin yana da lokacin damina daga Afrilu zuwa Oktoba, inda kashi 80% na ruwan sama na shekara ke sauka, tare da kololuwa a watan Yuni da Satumba. Matsakaicin ruwan sama na shekara-shekara yana kai 1,830 millimetres (72 in). Matsakaicin yanayin zafi yana daga 24 °C (75 °F) a watan Agusta zuwa 30 °C (86 °F) a watan Fabrairu. Dangin zafi yana da girma, tsakanin 80% zuwa 100%.Basin 223 tare da jimlar tsawon 516 kilometres (321 mi) . Wannan ƙaramin lamba ne idan aka ba da girman kwandon.[ana buƙatar hujja] shi da kyau, don haka rafin yana fuskantar ambaliya, zaizayar ruwa da zabtarewar ƙasa.[ana buƙatar hujja]
A cikin 1862, Ƙungiyar Zoological ta London ta sami bayanin wani sabon kada mai suna Crocodilus frontatus wanda aka ɗauko daga tsohon kogin Calabar, tare da babban kai fiye da na Crocodilus vulgaris. [3] An kuma bayar da rahoton wani sabon jemage mai suna Sphyrocephalus labrosus. [3]
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