Kogin Ramena
| Kogin Ramena | |
|---|---|
 | |
| General information | |
| Tsawo | 80 km |
| Labarin ƙasa | |
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| Tsarin Daidaiton Labarin Kasa | 13°44′00″S 48°37′00″E / 13.733331°S 48.616669°E |
| Kasa | Madagaska |
Hydrography (en)  | |
| Watershed area (en) | 1,080 km² |
| River source (en) | Maromokotro (en) |
| River mouth (en) | Kogin Sambirano |
Ramena kogi ne da ke a arewa maso yammacin Madagaskar, a cikin Yankin Diana. Yana samo asali ne daga Maromokotro, kuma shi ne ɗaya daga cikin manyan kogunan da ke ciyar da Sambirano da ruwa.
Yanayin kogin
[gyara sashe | gyara masomin]Ramena kogi ne da ke arewa maso yammacin Madagaskar, a Yankin Diana. Yana samo asali daga yankin Maromokotro, a cikin tsaunukan Tsaratanana, sannan yana ratsawa ta cikin dazuzzuka kafin ya shiga kogin Sambirano.[1]
Bisa binciken yanayin koguna da Aldegheri ya gudanar, Ramena yana gudana daga kudu maso gabas zuwa arewa maso yamma har zuwa Antseva. Daga nan sai ya karkata zuwa yamma da kudu maso yamma, sannan ya hade da Sambirano a ƙasan Ambodimanga. An kiyasta tsawonsa daga madogararsa zuwa bakin koginsa da kilomita 78, yayin da girman kwarin ruwansa ya kai km² 1,115 a cikin tsarin kogin Sambirano.[2]
Wani binciken ƙirar ilimin ruwa na baya-bayan nan da ya yi amfani da HEC-HMS, QGIS da bayanan DEM ya nuna cewa babban kogin Ramena yana da tsawon kilomita 86.2 daga madogararsa zuwa inda yake shiga Ambodimanga. Binciken ya kuma kiyasta cewa kwarin ruwansa yana da fadin km² 1,030, yayin da kewayensa ya kai kilomita 261.[3]
Dangantaka da Sambirano
[gyara sashe | gyara masomin]Ramena na daga cikin manyan rafukan da ke shiga kogin Sambirano. Yana shiga Sambirano a ƙasan Ambodimanga, kimanin kilomita 28 kafin Sambirano ya zube cikin Tekun Ampasindava. Saboda haka yana taka muhimmiyar rawa wajen samar da ruwa da kuma tsarin ilimin ruwa na kwarin Sambirano.[4]
Dangantaka da Gandun Tsaratanana
[gyara sashe | gyara masomin]Ramena yana da alaƙa ta kusa da Tsaratanana, domin madogararsa tana cikin tsaunukan Tsaratanana. A cewar Madagascar National Parks, akwai manyan koguna guda biyar da suke samo asali daga wannan gandun daji: Sambirano, Ramena, Ifasy, Mahavavy da Maevarano.[5]
Yankin Tsaratanana ya ƙunshi Maromokotro, wanda shi ne mafi tsayin dutse a Madagaskar, yana da tsayin mita 2,876. Haka kuma wannan yanki ne da kogunan Ramena, Sambirano da Mahavavy Avaratra suke samo asalinsu.[6]
Samar da wutar lantarki daga ruwa
[gyara sashe | gyara masomin]An yi amfani da kogin Ramena a matsayin misali a wani bincike kan gano wuraren da suka dace don samar da wutar lantarki ta amfani da ruwa a kwarurukan da ba su da tashoshin auna ruwa. Binciken ya yi amfani da kayan aikin QGIS, SAGA, R da HEC-HMS wajen gano wuraren da suka dace, gina ƙirar ilimin ruwa, da kuma ƙididdige yawan kwararar ruwa da ƙarfin wutar lantarki da za a iya samarwa a wurare daban-daban na kogin.[7]
Duba kuma
[gyara sashe | gyara masomin]Manazarta
[gyara sashe | gyara masomin]- ↑ Aldegheri, Marius. The Rivers and Streams on Madagascar, a cikin Biogeography and Ecology in Madagascar, 1972. IRD Horizon: https://horizon.documentation.ird.fr/exl-doc/pleins_textes/pleins_textes_5/b_fdi_30-30/32882.pdf
- ↑ Aldegheri, Marius. The Rivers and Streams on Madagascar. IRD Horizon: https://horizon.documentation.ird.fr/exl-doc/pleins_textes/pleins_textes_5/b_fdi_30-30/32882.pdf
- ↑ Ratsaramody, Justin. Proposal of a Systematic Approach for the Identification of Favorable Sites and the Evaluation of the Average Hydroelectric Potential in Ungauged Watersheds with HEC-HMS - Case of the Ramena River (Madagascar). Resources and Environment, 2022, 12(2): 47–58.
- ↑ Aldegheri, Marius. The Rivers and Streams on Madagascar. IRD Horizon.
- ↑ Madagascar National Parks. Tsaratanana.
- ↑ Protected Areas Madagascar. Tsaratanàna.
- ↑ Ratsaramody, Justin. Proposal of a Systematic Approach for the Identification of Favorable Sites and the Evaluation of the Average Hydroelectric Potential in Ungauged Watersheds with HEC-HMS - Case of the Ramena River (Madagascar). Resources and Environment, 2022.