Rima (river)

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Rima
Sokoto catchment area

Sokoto catchment area

Data
location NigeriaNigeria Nigeria
River system Niger
Drain over Sokoto  → Niger  → Atlantic Ocean
source The confluence of the two rivers Bunsuru and Gagere .
6 ° 28 ′ 5 ″  N , 13 ° 12 ′ 30 ″  E
Source height 321  m
muzzle in the Sokoto coordinates: 13 ° 6 ′ 44 ″  N , 5 ° 14 ′ 17 ″  E 13 ° 6 ′ 44 ″  N , 5 ° 14 ′ 17 ″  E
Mouth height 247  m
Height difference 74 m
Bottom slope 0.34 ‰
length over 220 km
Catchment area about 105,000 km²
Discharge
A Eo : 105,000 km²
at the mouth
MNQ
MQ
Mq
MHQ
0 l / s
294 m³ / s
2.8 l / (s km²)
1290 m³ / s
Right tributaries Tarka , Goulbi N'Kaba , Goulbin Maradi , Maggia
Reservoirs flowed through Goronyo Reservoir
Satellite image of the Goronyo Reservoir

Satellite image of the Goronyo Reservoir

The Rima is a river in the extreme northwest of Nigeria .

course

It has its headwaters in the state of Katsina , like the main river Sokoto into which it flows and arises from the confluence of the rivers Bunsuru and Gagere . It initially flows in a north-westerly direction, towards the border with Niger. Shortly before the border, it changes its direction to the southwest. Its main tributaries are the Tarka and Goulbi N'Kaba , which practically split the estuary shortly after the Goronyo Reservoir , and Goulbin Maradi. Tarka and N'Kaba come from the desert climate of Niger and make up most of the Rima catchment area. Nevertheless, they hardly contribute any water and lie dry for the greater part of the year.

The Nigerian part of the Rima-Sokoto catchment area is 57,000 km² in size shortly after the confluence of the two rivers, with the Sokoto corresponding to 12,000 km². Virtually the entire part of the Niger catchment area belongs to the Rima.

Hydrometry

The flow rate of the river was measured in m³ / s at the mouth

ID

In some sources, the Rima is referred to as the main river and the Sokoto as the tributary.

use

The Rima is particularly relevant locally for irrigation in the arid climate.

Individual evidence

  1. ^ A b Assessment of the Impact of Climate Change on Water Resources Availability in the Sokoto-Rima River Basin
  2. ^ A Study of Climate Variability on Water Resources of Some Hydrological Units of Hydrological Area I: Northwest Nigeria.