Map
Where is my basin?
Summary
Türkiye's 25 river basins on a map, with each basin's mean annual surface water and groundwater operating reserve (DSİ 2024) and the 5-year satellite water storage trend (NASA GRACE). Basin pages open in Turkish.
The map shades the provinces a basin covers; basin boundaries are not drawn. Provinces may belong to more than one basin. Basin pages open in Turkish. basins
Basin by basin
Meriç-Ergene BasinEdirne · Kırklareli · Tekirdağ · İstanbul Marmara Basinİstanbul · Kocaeli · Balıkesir · Bursa · Çanakkale · Kırklareli · Tekirdağ · Edirne · Yalova Susurluk BasinBursa · Balıkesir · Kütahya · Bilecik · Çanakkale · Manisa · İzmir North Aegean BasinBalıkesir · Çanakkale · Manisa · İzmir Gediz Basinİzmir · Kütahya · Manisa · Uşak Küçük Menderes Basinİzmir · Aydın · Manisa Büyük Menderes BasinAydın · Denizli · Muğla · Uşak · Afyonkarahisar · Burdur · Isparta · İzmir · Kütahya · Manisa Western Mediterranean BasinAntalya · Muğla · Burdur · Denizli · Aydın Antalya BasinAntalya · Isparta · Burdur · Konya · Afyonkarahisar Burdur BasinBurdur · Isparta · Afyonkarahisar · Denizli · Antalya Akarçay BasinAfyonkarahisar · Konya Sakarya BasinSakarya · Eskişehir · Bilecik · Ankara · Bolu · Kütahya · Afyonkarahisar · Konya · Bursa · Kocaeli Western Black Sea BasinZonguldak · Bartın · Karabük · Bolu · Düzce · Kastamonu · Sinop · Çankırı · Sakarya · Samsun Yeşilırmak BasinTokat · Samsun · Amasya · Çorum · Sivas · Yozgat · Gümüşhane · Giresun · Erzincan · Ordu · Bayburt Kızılırmak BasinSivas · Yozgat · Çorum · Kayseri · Kırşehir · Kastamonu · Çankırı · Ankara · Nevşehir · Samsun · Kırıkkale · Sinop · Aksaray · Amasya · Niğde · Konya · Tokat · Erzincan Konya Closed BasinKonya · Karaman · Aksaray · Niğde · Isparta · Ankara · Nevşehir Eastern Mediterranean BasinAntalya · Karaman · Konya · Mersin Seyhan BasinAdana · Kayseri · Sivas · Niğde · Kahramanmaraş · Mersin Asi (Orontes) BasinHatay · Gaziantep · Kilis · Osmaniye · Adana · Kahramanmaraş Ceyhan BasinKahramanmaraş · Osmaniye · Adana · Gaziantep · Adıyaman · Malatya · Kayseri · Sivas · Hatay Euphrates-Tigris BasinŞanlıurfa · Diyarbakır · Mardin · Batman · Siirt · Şırnak · Hakkari · Elazığ · Malatya · Adıyaman · Gaziantep · Kilis · Kahramanmaraş · Tunceli · Bingöl · Muş · Bitlis · Van · Erzincan · Erzurum · Ağrı · Sivas · Kayseri · Kars · Iğdır · Gümüşhane · Bayburt Eastern Black Sea BasinTrabzon · Rize · Giresun · Ordu · Gümüşhane · Artvin · Bayburt · Erzurum · Samsun · Tokat · Sivas Çoruh BasinArtvin · Erzurum · Bayburt · Kars · Erzincan Aras BasinKars · Ağrı · Erzurum · Iğdır · Ardahan Lake Van BasinVan · Bitlis · Ağrı
The numbers behind the map
| DSİ no | Basin | Surface water, mean annual (km³/year, DSİ 2024) | Groundwater operating reserve (hm³/year, DSİ 2024) | Satellite water storage, 5-year trend (cm/year) | Trend class |
|---|---|---|---|---|---|
| 01 | Meriç-Ergene Basin | 1.62 | 498.2 | −1.03 | decline |
| 02 | Marmara Basin | 7.36 | 210.7 | −0.86 | decline |
| 03 | Susurluk Basin | 4.47 | 585.9 | −0.97 | decline |
| 04 | North Aegean Basin | 1.78 | 212.9 | −0.86 | decline |
| 05 | Gediz Basin | 1.45 | 866.9 | −1.05 | decline |
| 06 | Küçük Menderes Basin | 0.54 | 179.2 | −0.82 | decline |
| 07 | Büyük Menderes Basin | 2.74 | 761.5 | −0.98 | decline |
| 08 | Western Mediterranean Basin | 6.21 | 316.7 | −0.67 | decline |
| 09 | Antalya Basin | 12.80 | 576.3 | −1.18 | decline |
| 10 | Burdur Basin | 0.22 | 89.5 | −1.11 | decline |
| 11 | Akarçay Basin | 0.39 | 345.4 | −1.09 | decline |
| 12 | Sakarya Basin | 6.01 | 1,545.2 | −0.70 | decline |
| 13 | Western Black Sea Basin | 10.25 | 607.6 | +0.14 | steady |
| 14 | Yeşilırmak Basin | 6.89 | 872.8 | +0.29 | steady |
| 15 | Kızılırmak Basin | 6.46 | 1,762.9 | −0.21 | steady |
| 16 | Konya Closed Basin | 2.17 | 2,023.0 | −1.31 | decline |
| 17 | Eastern Mediterranean Basin | 7.00 | 70.5 | −1.46 | decline |
| 18 | Seyhan Basin | 6.18 | 749.9 | −1.54 | steep decline |
| 19 | Asi (Orontes) Basin | 1.62 | 289.5 | −2.34 | steep decline |
| 20 | Ceyhan Basin | 7.43 | 533.5 | −1.96 | steep decline |
| 21 | Euphrates-Tigris Basin | 54.50 | 3,763.7 | −2.21 | steep decline |
| 22 | Eastern Black Sea Basin | 16.37 | 490.9 | +0.24 | steady |
| 23 | Çoruh Basin | 7.14 | 20.0 | −0.44 | steady |
| 24 | Aras Basin | 4.57 | 294.4 | −1.04 | decline |
| 25 | Lake Van Basin | 2.53 | 148.2 | −2.04 | steep decline |
Sources: DSİ Official Water Resources Statistics 2024, Tables 1.2 and 1.3 (dsi.gov.tr); NASA GSFC GRACE/GRACE-FO mascon RL06 v2.0; province list per basin from SYGM basin booklets. · Data as of: 20 July 2026