UNIT I
INTRODUCTION TO ENGINEERING HYDROLOGY AND
ITS APPLICATIONS, HYDROLOGIC CYCLE,
TYPES AND FORMS OF PRECIPITATION, RAINFALL
MEASUREMENT, TYPES OF RAIN GAUGES,
COMPUTATION OF AVERAGE RAINFALL OVER A
BASIN, PROCESSING OF RAINFALL DATA –
ADJUSTMENT OF RECORD -RAINFALL DOUBLE
MASS CURVE. RUNOFF- FACTORS AFFECTING
RUNOFF – RUNOFF OVER A CATCHMENTEMPIRICAL AND RATIONAL FORMULAE.
ABSTRACTION FROM RAINFALL-EVAPORATION,
FACTORS AFFECTING EVAPORATION,
MEASUREMENT OF EVAPORATIONEVAPOTRANSPIRATION- PENMAN AND BLANEY &
CRIDDLE METHODS -INFILTRATION, FACTORS
AFFECTING INFILTRATION, MEASUREMENT OF
INFILTRATION, INFILTRATION INDICES.