Trend
River runoff
Source: Form No. 1-IK (MEWR, Hydromet Agency)Updated: 18.10.2026 · form of 01.09.2026
VII.8
Impacts
Official value
River runoff
Name in the form: Volume of river runoff, m³
Period
- Form 1-IK
- Unofficial
River runoff
64
km³/year
no series to compare
- Unit
- km³/year
- Frequency
- Twice a year
- Area
- Impacts
- Section
- VII · Energy
- Agencies
- MEWR Hydromet Agency
Data
Values by year
| Year | Valuekm³/year | Source and note |
|---|---|---|
| 2025 | 64 | Official Long-term average value |
Source data
Value in Form No. 1-IK
Среднемноголетний речной сток, формирующийся на территории Таджикистана, составляет около 64 км³ в год
Cell text as submitted. Figures for the dashboard were extracted from it and converted to the indicator unit. The text is shown in the language of the form (Russian).
Quality
Data remarks
- The unit in the name is “m³”; the value is a long-term average, not for the reporting year
Methodology
Indicator metadata
- Definition
- Amount of water flowing through the cross-section of a river channel over a given period (day, month, season or year). It is the main indicator of water resources.
- Calculation method
- Calculated as the product of the mean water discharge and time, or of the catchment area and the runoff depth. 1) From the mean water discharge: W = Q × t where Q is the mean water discharge (m³/s) and t is the duration of the time interval in seconds. For annual runoff, a conversion factor is used: W ≈ 31.536 × Q, where W is measured in cubic kilometres and Q in cubic metres per second. 2) From the runoff depth: W = 1000 × h × A where h is the runoff depth (mm) and A is the catchment area (km²). 3) Using the runoff coefficient: N = h/x. This value shows what share of the precipitation that has fallen (x) is converted into river runoff. The indicator is calculated twice a year (during the seasonal flood and the low-water period).
- Institution responsible for calculation
- Ministry of Energy and Water Resources of the Republic of Tajikistan; Agency for Hydrometeorology of the Committee for Environmental Protection under the Government of the Republic of Tajikistan