Current monitoring network

The Blue Nile Sub-basin

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The Blue Nile river (known as Abbay in Ethiopia) drains the highlands of Ethiopia and contributes about 60 per cent of the annual flow of the Nile measured at Aswan in Egypt. The long-term average annual water yield of the sub-basin is approximately 50 BCM. The Blue Nile is highly seasonal with approximately 70 percent of its annual flow occurring in just 4 months. The Blue Nile is source of water for major irrigation schemes in the Sudan. The Blue Nile causes severe flood damages in Sudan from time to time. The Grand Ethiopian Renaissance Dam (GERD) is under construction on the Blue Nile designed to store some 74 109m3. With the GERD in place, the Blue Nile will be fully regulated and its downstream flow depends on releases from the dam. This is expected to reduce flood damages significantly. There are opportunities for cross border collaboration on the coordinated management of the Blue Nile in which joint monitoring of river flows is an important component.

Meteorological monitoring network

There are 304 meteorological stations in the sub-basin, with 286 of them in Ethiopia and 18 in Sudan. The distribution of the stations is shown in the map below. 64 stations (53 in Ethiopia and 11 in Sudan) are reported to measure the full range of meteorological parameters and the rest 106 measure daily rainfall totals only.

No Name of Station
1 Debark
2 Humera
3 Metema
4 Sanja
5 Adwa
6 Atsebi
7 May Tsebri
8 Maygaba
9 Nebelet
10 Senkata
11 Shire Endasilasse
12 Amde Work
13 Lalibela
14 Tsitsika
15 Axum Air Port
16 Mekele Air Port
17 Adi Arkay
18 Agere Genet
19 Ambagiorgis
20 Ashere
21 Baeker
22 Belesa (Hamusit)
23 Chanchok
24 Chenek
25 Chew Ber
26 Ebinat
27 Endris
28 Guhala
29 Ibnat
30 Kafta
31 Mykadra
32 Mekane Birhane
33 Tegdie (Kirakir)
34 Abi Adi
35 Adiawala
36 Adigoshu
37 Adikilte
38 Adimehemeday
39 Adiremets
40 Aditsetser
41 Badme
42 Biezet
43 Bora
44 Daro Hafash
45 Debrekerbe
46 Dera
47 Dimma
48 Edaga Selus
49
50 Edaga Hibret
51 Endabaguna
52 Feresmay
53 Finarawa
54 Gelebeda
55 Gijjet
56 Guroro
57 Hagere Selam
58 Halelo
59 Hawzen
60 Hewane
61 Ketema Negus
62 Mayhanes
63 Merhsenay
64 Muglat
65 Rahya
66 Selehelehe (IV)
67 Semema
68 Shiraro
69 Wedisemro
70 Wukuro
71 Yichila
72 Yiha
73 Ayna Bugna
74 Belebala Giyorgis
75 Chilla
76 Dibiko
77 Esrel (Libanos)
78 Gibana
79 Hamusit
80 Kewzeba
81 Sekota
82 Telajen/Hamusit
83 Zata
84 Adidaro
85 Dabat
86 Dib Bahir
87 Felwuha
88 Gedebeye
89 Gobgob
90 Kimir Dingay
91 Negadebaher
92 Tikil Dengay
93 Welela bahir
94 Zerma
95 Adidaro
96 Adigudom
97 Adigebru
98 Adishehu
99 Agibe
100 Agulai
101 Asegede
102 Aynalem
103 Chila
104 Dansha
105 Debud
106 Dengolet
107 Edaga Hamus
108 Edagaribi
109 Enticho
110 Fatsi
111 Gerehu Srnay
112 Hashenge
113 Haykmshal
114 Rama
115 Samre
116 Tsegereda
117 Workamba
118 Asketema
119 Dabo Ketema
120 Kulmesk
121 Muja
122 Kassala
123 New Halfa
124 Khashm Elgirba
125 Elshwak
126 Fireweini
127 Shiraro
128 Tekeze Hydro power
129 Wad alheleo
130 Aroma
131 Banrt
132 Degen
133 Gashm algerba
134 Goz Ragab
135 Hadalia
136 Halfa Elgadida
137 Matateb
138 Mekali
139 Mokram
140 Sidon
141 Tendalayi
142 Togan
143 Tomorgu
144 Barbar
145 Doka
146 ElGuraish
147 Showak
148 Elazaza North
149 Es salama
150 Hillat Hakuma
151 shasheina
152 Um brakeit
153 Um Grgor
154 Um Rahau
155 Aykel

Hydrometric stations

There are 133 hydrometric stations in the sub-basin; 126 in Ethiopia and the remaining seven in Sudan. The station just downstream of Ethiopia – Sudan border, the Diem station, has a record of over 100 years and, therefore, one of the most important. However, is due to the recent heightening of the Roseries Dam in Sudan, the station at times get inundated by the back-water of the dam. Most stations in Ethiopia were established in the early 1960’s. Erosion and sediment transport are also key processes in the sub-basin but not adequately monitored. The Blue Nile sub-basin offers one of the greatest opportunities for hydropower development in the Nile Basin. In addition, providing over 60 percent of the average annual flow of the Nile, the Blue Nile is the major source of water for the Nile. Key focus in strengthening of hydrometric monitoring system shall be on real-time data collection and transmission system, sediment monitoring and monitoring of river morphological changes downstream as a result of anticipated flow regimes in the sub-basin.

No Name
1 Urgessa near Gembe
2 Temsa near Agaro
3 Didessa near Dembi
4 Dabana near Bunobedele
5 Didessa near Arjo
6 Wama near Nekemte
7 Melke near Guder
8 Sifa near Nekemte
9 Bello near Guder
10 Fatto near Guder
11 Indris @ Guder
12 Guder @ Guder
13 Huluka near Ambo
14 Debis nearGuder
15 Dabana near Abasina
16 Tato near Gutie
17 Indris near Sire
18 Adiya near Nekemte
19 Gerbi near Sululta
20 Roba near Chancho
21 Deneba near Chancho
22 Mugher near Chancho
23 Uke near Nekemte
24 Aleltu near Chancho
25 Gorfo near Gorfo
26 Angar near Nekemte
27 Dilla near Nedjo
28 Tinshu Duber near Duber
29 Tilku Duber near Duber
30 Aleltu @ Nedjo
31 Little Ang @ Angar Gutin
32 Chacha @ Chacha
33 Komis near Gori
34 Koriche near Kiltu Kara
35 Hujur near Nedjo
36 Robi Jida near Muka Ture
37 Aleltu near Muka Ture
38 Beressa near Debre Berhan
39 Sechi nearMendi
40 Mutsa near Bambasi
41 Neshi near Shambo
42 Robigumero near Lemi
43 Dabus near Asosa
44 Jemma near Lemi
45 Haffa near Assosa
46 Gambella near Asossa
47 Jemma at Abay Confluence
48 Abay at Kessi Bridge
49 Wenchit near Alem Ketema
50 Hoha near Asossa
51 Muga near Dejen
52 Wizer near Mehal Meda
53 Yeda near Amber
54 Bogena @ Lumame
55 Shy near Mehal Meda
56 Chemoga near Debremarkos
57 Abahim @ Debremarcos
58 Jedeb near Ama Nuel
59 Teme near Mota
60 Suha near Bichena
61 Gebregura. near Degolo
62 Shelkole near Komosha
63 L. Fettam @ Galibed
64 Temcha near Dembecha
65 Gudla @ Dembecha
66 Jogola @ Wereilu
67 Abbay near Bure
68 Chereka @ Yechereka
69 Birr near Jiga
70 Leza near Jiga
71 Abay at Shergole Cableway RGS
72 Lah near Finote Selam
73 Mechela near Kabe
74 Boreda near Mekaneselam
75 Selgi near Kabe
76 Lege Cora near Mekaneselam
77 Talia near Jiga
78 Fettam @ Tilile
79 Tigdar nearGunde Woin
80 Dondor near Metekel
81 Missini @ Kossober
82 Ardy near Metekel
83 Ayo near Kossober
84 Azuari near Mota
85 Abay at Mekane Selam-Gundewein Br.
86 Abay at Yarenga Bridge
87 Dura near Metekel
88 Buchiksi near Kidamaja
89 Sedie near Mota
90 Abbay near Kessie
91 Gerado near Dessie
92 Abay at El Delm
93 Gilgel Be. near Mandura
94 Tul near Adet
95 Quashini near Addis Kidame
96 Abbay @ Sudan Border
97 Eldeim
98 Main Beles @ Bridge
99 Shina near Adiet
100 Amen @ Dangila
101 Main Bele at Bridge DS of Bagusta
102 Gelgel Abbay near Marawi
103 Koga @ Merawi
104 Bered @ Merewi
105 Ezana near Bahirdar
106 Mendel near Tis Abbay
107 Andassa near Bahir Dar
108 Lake Tana @ Bahir Dar
109 Abbay @ Bahir Dar
110 Abbay near Pedagogi
111 Chena near Istay
112 Wenka near Istay
113 Fegoda Nr Arb Gebeya
114 Gelda near Ambessame
115 Roseries
116 Ribb near Gasai
117 Gumara near Bahir Dar
118 Zufil near Debre Tabor
119 Lake Tana @ Kunzila
120 Ribb near Addis Zemen
121 Upper Ribb On DebreTabor Road
122 Lake Tana @ Gorgora
123 Garno near Infranz
124 Gemero near Maksegnit
125 Megech near Azezo
126 Angareb near Gonder
127 Wad Eleis
128 Gewesi
129 Hawata
130 Madani
131 Khartoum
132 Yebu @ Yebu
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