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DESNA A LETKI
STATION IDENTIFICATION

Country : Ukraine - River Name :Desna - Major Basin : Dnieper
Station Name : Letki - Station Code or number :80136
Coordinates : 50°41' N latitude - 30°43' Elongitude and 92,2 m above sea level
Catchment area : 88 500 sq km - Date Station Opened : 1894, 1923

CHANNEL CHARACTERISTICS
Channel Geometry : 250 m width and7,5 m depth
with stable / fair / unstable river bed cross-section, underlain by : ___
The river bed is natural / man made : natural, shaped, sandy
Describe the hydraulic conditions within the measuring station : The deepening of the river bed is provided annualy

HYDROLOGICAL REGIME
Natural or influenced flow : natural flow
with slow rise or flash floods : up to 5 m
Annual max. and min. mean flow : 2400 m3/s; 56,1 m3/s; 350 m3/sm3/s

EQUIPMENT AND PERSONNEL
Equipment installed and status : gauge line pillar in working condition
Gauging equipment and status : ___
Observer or watchman : 1

VOLUME AND QUALITY OF INFORMATION AVAILABLE
DAII : (Discharge Available Information Index : number of monthes with complete discharge information / number of observed years / 12)
Rating curve status (currently updated or not) : currently updated, stable
Number of discharge measurements (dm) available : 25 per year
Highest water level observed : ___ - Date : ___
Highest water level at which dm taken : 75,7 - Date : 1 05 1931
Lowest water level observed : 12,4 - Date : 21 11 1975
Data storage medium (computerized or not) : not
Data dissemination medium (diskette or hand filled form) : hand filled form, in tabular form
Status of the database (which data, currently updated or not) : daily mean water level, measured discharge, water temperature, ice depth, ice phenomena

OPERATION AND MAINTENANCE (O & M)
Number of visits currently undertaken per year : daily
Ease of access : easy
Ease of flow measurement (describe) : easy
Technique(s) used for discharge measurement (wading, bridge, slope area, etc.) : boat
Equipment used in discharge measurement : current meter
Equipment used in stage measurement : piles water level portable staff
Operation and maintenance budget per annum for the station : ___

BENEFITS AND INTEREST
Current use of the data and who uses it (describe) : Estimation of water inflow in Kanev Reservoir, flood forecasting, flood water zone forecasting(Hydromet, Inland Water Transport, National Dispatcher Centre of the Ministry of Power Engineering), water quality monitoring.
Estimated revenue from use of data (if charges are raised) per annum :
Expected future use and where will it be used (describe) : Estimation and forecast of the water inflow into Dnieper Cascade Reservoirs, keep trace of radionucleides and pollutant migration, upgrading the flow forecasting and warning system, improvement of water ressources management
Additional data needed (which ones) : indicated in questionnaire
Real time needed (for what purposes) : Receiving of reliable hydrological and hydrochemical information for operational use

SERVICE ORGANIZATION
Name : Kiev Hydrological Station
Organization : State Committee for Hydrometeorology
Address : 6, Zolotovorotskaya str, 252601, MSP, Kiev - 34
Number of staff : Hydrology Group, 8 people

Form filled by : Vasili Sitak
Title : Head of the State Observing System Department
Date : 18.07.95
Address : 6, Zolotovorotskaya str, 252601, MSP, 34, Kiev, Ukraine