Water Resource Evaluation Flashcards
key components for water resource evaluation
P = ET + R + ΔS
P- precipitation
ET - evapotranspiration
R - Runoff
S - storage /change in storage
equipment for precipitation measurement
rain gauge
equipment for evapotranspiration measurement
lysimeter
______ determine storage
watershed area ; groundwater basin volume
water in the atmosphere returning to earth as liquid or solid
precipitation
most precipitation is a result of ________ over oceans
evapotranspiration
t or f: precipitation ahs extreme variability around the world
t
process converting water to water vapor
evapotranspiration
evaporation from soil surface and transpiration from plants
evapotranspiration
water flowing across land surface as streams, rivers, and drains after rain storm or melting snow
runoff
water flowing beneath land surface through sediments and rocks
subsurface (groundwater) runoff
t or f: runoff constitute both surface and ground waters
t
water collected in naturally occurring or man-made bodies along hydrologic cycle
water storage
storage bodies include:
lakes, reservoirs, wetlands, aquifers, ice caps
measurement approach for changes in surface water storage
stage
measurement approach for changes in groundwater storage
observation wells
measurement approach for stream discharge
sharp crested weir
measurement approach for evapotranspiration
evaporation pan
how many classes does groundwater resource and vulnerability assessment in the Ph have?
7 classes
4 different arrays for georesistivity survey
- Wenner array
- Schlumberger array
- Pole-pole array
- pole-dipole array
arrays used in flat areas
wenner
schlumberger
array used in topographic areas
pole-pole
pole-dipole
the relative ease by which a contaminant located at or near the land surface can migrate to the aquifer
groundwater vulnerability
this assess aquifer sensitivity based on seven independent parameters that form its acronym
DRASTIC methos
