Obudu Dam

Dam din Obudu yana cikin ƙaramar hukumar Obudu a jihar Cross River a kudu maso gabashin Najeriya. Yana da wani tsari mai cike da ƙasa mai tsayin mita 15 da tsayin daka mai tsayi na 425 m, kuma yana da ƙarfin 4.2 miliyan m3.  Dam din yana cikin ginshikin ginshiki na Obudu crystalline, wani yanki mara nauyi da karancin ayyukan girgizar kasa.  An ba da aikin dam a cikin 1999 don amfani da shi a cikin ban ruwa na gona, kamun kifi, da kuma abubuwan nishaɗi da yawon buɗe ido.  A watan Satumban 2000, babban mai mulkin karamar hukumar Obudu, Uti Agba, ya yi alkawarin cewa al’ummarsa za ta kare kayayyakin da aka sanya a madatsar ruwa. 

Ruwan sama mai yawa a watan Yulin 2003, haɗe da fitar da ruwa mai yawa daga Dam din Lagdo a Kamaru, ya lalata magudanar ruwa tare da haddasa ambaliya da ta lalata gidaje sama da 200. An kiyasta kudin gyara barnar da kuma kammala aikin noman rani ya kai Naira miliyan 350.  Wani bincike da aka yi a shekarar 2004 ya nuna cewa, ana bukatar yin gaggawar aikin dawo da magudanar ruwa, a kan kuɗi Naira miliyan 272.  A watan Yulin 2009, gwamnatin tarayya ta ba da takardar neman aikin injiniya na sa ido kan aikin gyara madatsar ruwa da suka hada da gyara ko maye gurbin sassan injinan ruwa, shigar da wutar lantarki da kayayyakin aikin injiniya.  Dam ɗin ya rage yawan ruwan da ake samu a garin Obudu, lamarin da ya janyo karancin ruwan sha a lokacin rani. 

 Yanayi 
A Obudu Dam, lokacin damina na da zafi, da tsananin zafin wurin, da kuma kafewa, kuma lokacin rani yana da zafi, mai ɗimbin yawa, kuma wani ɓangare na gajimare. A tsawon shekara, yawan zafin jiki ya bambanta daga 65 ° F zuwa 89 ° F kuma yana da wuya a kasa 60 ° F ko sama da 93 ° F.https://www.cbip.org/ISRM-2022/ICOLD2021/Data/Themes/5-River%20Basin%20Development%20and%20Management%20including%20Optimization%20of%20Reservoirs%20Operation/5-32%20Pro%202020.pdf

 Temperature 
Lokacin zafi yana ɗaukar watanni 2.1, daga watan Janairu 28 zuwa Maris 31, tare da matsakaicin zafin rana sama da 88 ° F. Ranar mafi zafi na shekara ita ce a watan Fabrairu 23, tare da matsakaicin tsayi na 89 ° F kuma ƙasa da 70 ° F. 

 Ruwan sama 
Lokacin damina na shekara yana ɗaukar watanni 9.6, daga ranar 13 ga watan Fabrairu zuwa 1 ga watan Disamba, tare da zazzagewar ruwan sama na kwanaki 31 na akalla inci 0.5. Mafi yawan ruwan sama yana faɗowa a cikin kwanaki 31 da ke tsakiyar ranar 25 ga watan Satumba, tare da jimlar jimlar inci 11.4. Lokacin rashin ruwan sama na shekara yana ɗaukar watanni 2.4, daga 1 ga Disamba zuwa 13 ga Fabrairu. Mafi ƙarancin ruwan sama yana faɗo a kusa da Disamba 29, tare da matsakaicin jimlar inci 0.1. 

 Ambaliyar Ruwa 
Ambaliyar ruwa ta ratsa ta tafkin Obudu sakamakon ruwan sama da aka yi a ranakun 19 da 20 ga watan Yuli, 2003. Magudanar ruwa ta yi babbar barna a lokacin ambaliya a shekarar 2003 inda aka samu ruwan sama na 315mm a cikin kusan sa'o'i 16 a ranar 19 ga watan Yuli. Ƙaƙƙarfan kariyar siminti / dutsen zuwa ga gadon tashar da gangaren gefen sun lalace sosai daga nesa na 10m na ​​ƙasa na weir. An samu ramukan magudanar ruwa har zuwa zurfin mita 4 a yayin da aka zubar da ruwa wanda kuma ya yi sanadin lalata gidaje sama da 200 tare da raba al'ummomin da ke karkashin ƙasa. 

 Hydropower 
Bayan gyare-gyare da kuma inganta ayyukan dam da suka hada da tafki, dam din na Obudu a yanzu yana da karfin samar da karamin wutar lantarki mai karfin megawatt 3. Wannan yuwuwar ƙarfin wutar lantarki, lokacin shigar da shi zai kasance da amfani sosai don hidimar sabbin masana'antu na Agro masu tasowa a cikin magudanar ruwan dam. Hakika wannan shine lokacin Bunkasa Makamashi Mai Sauƙaƙe da haɓaka haɗin gwiwar makamashin Najeriya.

 Manazarta