# Hadejia River
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{{Short description|River in Northern Nigeria}}
{{Use Nigerian English|date=May 2026}}
thumb|River Hadejia
thumb|right|300px|Catchment area of the Yobe River
The '''Hadejia River''' ([Hausa](/source/Hausa_language): {{Transliteration|ha|kogin Haɗeja}})[{{Cite web |title=Hadejia |url=https://www.britannica.com/place/Dutse}}] is a river in Northern [Nigeria](/source/Nigeria) and is a tributary of the [Yobe River](/source/Yobe_River) (Komadugu Yobe).[{{cite encyclopedia | encyclopedia = Encyclopædia Britannica| title = Hadejia| url = http://www.britannica.com/eb/article-9038730/Hadejia| accessdate = 2006-12-22| publisher = Encyclopædia Britannica, Inc.}}]
Among the cities and towns that lie on or near its banks are [Hadejia](/source/Hadejia)[{{Cite web |title=Hadejia River {{!}} river, Nigeria {{!}} Britannica |url=https://www.britannica.com/place/Hadejia-River |access-date=2023-07-26 |website=www.britannica.com |language=en}}]
Damming of the river for the purposes of irrigation has led to a decrease in the amount of water in the [Hadejia-Nguru wetlands](/source/Hadejia-Nguru_wetlands),[{{cite web |url=http://www.aaas.org/international/ehn/waterpop/acreman.htm |last=Acreman |first=Michael |title=Principles of Water Management for People and the Environment |accessdate=2007-05-13 |work=Aaas.org |publisher=[American Association for the Advancement of Science](/source/American_Association_for_the_Advancement_of_Science) |archive-url=https://web.archive.org/web/20070611142254/http://www.aaas.org/international/ehn/waterpop/acreman.htm |archive-date=2007-06-11 |url-status=dead }}] which the river forms along with [Nguru Lake](/source/Nguru_Lake).{{citation needed|date=July 2023}}
The [Hadejia](/source/Hadejia) river is now 80% controlled by the [Tiga](/source/Tiga_Dam) and [Challawa Gorge](/source/Challawa_Gorge_Dam) [dam](/source/dam)s in [Kano State](/source/Kano_State).[{{cite web
|url=https://www.fao.org/docrep/W4347E/w4347e11.htm
|title=Irrigation potential in Africa: A basin approach
|date=1997
|publisher=United Nations Food and Agriculture Organization
|accessdate=2009-10-01}}][{{cite web
|url = http://na.unep.net/AfricaLakes/AtlasDownload/PDFs/Africas-Chapter3-2b-Screen.pdf
|title = Challawa Gorge Reservoir
|publisher = United Nations Environment Program
|access-date = 2009-10-03
|url-status = dead
|archive-url = https://web.archive.org/web/20090509215612/http://na.unep.net//AfricaLakes/AtlasDownload/PDFs/Africas-Chapter3-2b-Screen.pdf
|archive-date = 2009-05-09
}}]
==Flood==
The state government started clearing the [Hadejia](/source/Hadejia) [River's](/source/River_delta) canal and preventing water overflows, after the state experienced significant flooding, this work was started to prevent future floods.[{{Cite web |last=USMAN |first=Mustapha |date=2023-07-01 |title=Flooding: Jigawa govt commences dredging of Hadejia river |url=https://www.icirnigeria.org/flooding-jigawa-govt-commences-dredging-of-hadejia-river/ |access-date=2023-07-10 |website=The ICIR- Latest News, Politics, Governance, Elections, Investigation, Factcheck, Covid-19 |language=en-GB}}][{{Cite web |last=Abdullahi |first=Murtala |date=2020-10-01 |title=40 killed in Jigawa As River Hadejia Overflows Its banks |url=https://humanglemedia.com/40-killed-in-jigawa-as-river-hadejia-overflows-its-banks/ |access-date=2023-07-26 |website=HumAngle |language=en-US}}]
[Flood](/source/Flood) [frequency](/source/frequency) analysis was performed on the maximum annual streamflow data for the River [Hadejia](/source/Hadejia) gauge station from the Hadejia [Jama'are](/source/Jamaare) Komadugu TrustFund, [Damaturu](/source/Damaturu), for the years 1963 to 2014.[{{Cite journal |last1=Shuaibu |first1=Abdulrahman |last2=Hounkpè |first2=Jean |last3=Bossa |first3=Yaovi Aymar |last4=Kalin |first4=Robert M. |date=January 2022 |title=Flood Risk Assessment and Mapping in the Hadejia River Basin, Nigeria, Using Hydro-Geomorphic Approach and Multi-Criterion Decision-Making Method |journal=Water |language=en |volume=14 |issue=22 |pages=3709 |doi=10.3390/w14223709 |issn=2073-4441 |doi-access=free }}] For the analysis, three probability distribution functions—Extreme Value Type 1 (EV-1), [Lognormal](/source/Log-normal_distribution), and Log Pearson Type III—were employed. The models were used to forecast and contrast the associated flood discharge [prediction](/source/prediction)s for return periods of 2, 5, 10, 25, 50, 100, and 200 years. At a 200-year return time, the results for EV-1, LN, and LP III showed anticipated discharge values of 157.419, 169.43, and 135.21, respectively. It is advised to use the lognormal distribution model for safe design since the results show that it provides greater flood discharge estimates.[{{Cite news |title=Flood: Jigawa farmers demand compensation from Hadejia-Jamare River Basin Authority |url=https://www.premiumtimesng.com/news/more-news/563579-flood-jigawa-farmers-demand-compensation-from-hadejia-jamare-river-basin-authority.html |access-date=2023-07-26 |newspaper=[Premium Times](/source/Premium_Times)}}]
== Climate and weather ==
in Hadejia the [weather](/source/weather) condition of the wet [season](/source/season) is hot and is most of the time [cloud](/source/cloud)y. The dry season is partly cloudy, and the temperature varies from {{cvt|59|°F|order=flip|link=on}}. to {{cvt|105|F|order=flip}}.[{{Cite web |title=Hadejia Climate, Weather By Month, Average Temperature (Nigeria) - Weather Spark |url=https://weatherspark.com/y/65605/Average-Weather-in-Hadejia-Nigeria-Year-Round |access-date=2023-07-15 |website=weatherspark.com |language=en}}]
From March 21 to June 2, the hot season lasts 2.4 months, with an average daily high [temperature](/source/temperature) of over 101 °F. In Hadejia, May is the hottest month of the year, with an average high of 103 °F and low of 80 °F.