The climate of Garowe is arid. The highest rainfall received in Garowe town averages 51mm and occurs in May. Mean annual rainfall is estimated at 108mm. The city lies at an elevation of 450 m above sea level. Temperatures range from 14oC to 34oC.
Garowe city is located between two wadis -ephemeral riverbeds that contains water only during rainy seasons – Deyr (October to November) and Gu (April to June).
The Togga Garowe, to the north, is the larger river, and it is visible for some part of the year during rains. With steep, high banks it has traditionally constituted the limit of the urbanized area, but in the last five years development has progressed also on its northern side. The new area is connected to the rest of the town by only one bridge. It presents some topographical relieves, and many ministries have been clustered on the top of a hill.
The other dry riverbed, Lan Alifrin, forms the southern limit
of the built-up area. The zone between the two wadis is relatively flat and construction has grown in time in a orderly manner.
The dry soil that characterizes the area, with poor absorption ability, cause the runoff of heavy rains to collect in gullies and streams and, as they join to form larger volumes, often form a fast-flowing front of water and debris. Over the past decade, the steady development of the town especially around the Lan Alifirin stream have altered considerably the natural waterways, which are no longer draining storm water to traditional outlets.
Given this condition, and the continuous urbanization that is undergoing in Garowe, the city faces a significant risk due to a number of environmental threats, which are summarized in the following page. The implementation of strategies to uphold resilience is essential.
Water scarcity and flood risk
Agricultural land and soil contamination
Due to unregulated and uncontrolled pumping of groundwater there is a high risk for ground water table and regeneration of aquifer resources. More indepth studies are required to address this challenge.
The less permeable surfaces associated with urban development results in increased storm water runoff volume and peak discharge, which is evidenced by chronic flooding and degraded water quality.
As the runoff flows over the land or impervious surfaces (paved streets, parking lots, and building rooftops), it accumulates debris, chemicals, sediment or other pollutants that could adversely affect water quality if the runoff is discharged immediately or left untreated.
There is no proper drainage network plan other than the natural streams which conflict with the road infrastructure at some points. This results in directly flood related problems. at multiple locations
In addition to the direct flood related problems, a solid waste management system should go hand in hand with the sustainable operation and maintenance of drainage systems and their hydraulic structures to prevent any risk of blockages.
Fencing and vegetation clearing by overgrazing have a negative environmental impact which in turn affects the farming and grazing land as it causes soil erosion, deforestation, reduced rain fall, and droughts.
As a result, exposed and loosened soils can be washed downstream, resulting in gulley formation and badlands.
Erosion of the Togga Garowe is becoming critical in many points and constitute a hazard for the structure along the riverbed banks which must be addressed urgently.
Garowe is semi-arid with warm wheatear and an average temperature range is 20- 33 the summer months June – August are wind and hot. The humidity in Garowe varies between 54% during dry season & 71%during the wet season.i
The district has a moderate climate in which temperatures range between 18 and 34 degrees Celsius. In the cod months of December and January, the temperature drops to a low of 14 degrees Celsius. There is not much rainfall. The highest levels occur in the month of May, which has an average of 51 mm. the average annual rainfall is 10.8 mm.
It is mainly flat but surrounded by a few hills on parts of the district. It has sufficient space for expansion in the future
Most of the soil of Garowe can be categorized as fertile. There are however, certain parts that are rocky or sandy
Garowe does not receive much rainfall and hence benefits less from perennial surface water sources. Togga Garowe and Lan Alifirin seasonal streams receive water during the rainy season and this provides water for domestic use. Residents in the town rely on boreholes, hand dug shallow wells and berkads, but the resulting water is often high in saline components.
The town has a piped water system managed through a Public Private Partnership (PPP) model, extracting water from various boreholes in and around town. Pipes draw water from a reservoir of about 3000 m3, and cover around 90% of the urbanized area; there are number of kiosks scattered at different points of the town.
There is no reliable sewage or biomedical management system in place so far. In this regars, it has been noted that an increased water supply for an increasing population imply rising environmental and health impacts, for the additional wastewater generated. Toilets either discharge to a septic tank and absorption field or directly to the drainage network, allowing contamination of berkads, shallow wells and ground water, therefore a likely predisposing source of water related diseases.
These services are poorly distributed around the district, with the rural areas often having no reliable water sources or access to improved sanitation. The situation is slightly better in the urban centers. The water supply system for Garowe town residents is drawn from a single borehole with an elevated tank. Garowe water supply system is a public facility. The water is managed by
managed by a private agency called Nugal Water Company (NAWACO). There is insufficient water supply leading to frequent shortages and the supplied water is very saline.
There is no sewerage system. The infrastructure for the water supply system was set up through support from Development partners such as UNICEF among others.
About 53 % of households have installed water pipes and there are very rare water points in the town. The monthly cost of water is fairly rated at $10 (S Sh. 300,000). There is a number of shallow water wells in most villages of the district which receive very little maintenance services from time to time and often go out of order. In the upcountry, communities and their livestock rely on a number of water reservoirs [berkado] as their main water sources, which collect water during rainy seasons. These reservoirs belong to individuals who use them to satisfy their water needs and at the same time sell water at a cost during dry seasons.
Month |
|
|
| 2017 | 2018 |
Jan |
|
|
| 1460 | 1930 |
Feb |
|
|
| 1442 | 1911 |
March |
|
|
| 1592 | 1925 |
April |
|
|
| 1752 | 1979 |
May |
|
|
| 1698 | 1882 |
June |
|
|
| 1604 | 1990 |
July |
|
|
| 1675 | 1920 |
Aug |
|
|
| 1784 | 1939 |
Sep |
|
|
| 1785 | 1957 |
Oct |
|
|
| 1748 | 1988 |
Nov |
|
|
| 1854 | 1985 |
Dec |
|
|
| 1908 | 2074 |
Total |
|
|
| 20,302 | 23,480 |
Source: Garowe Municipality