(LECTURE 1) INTRODUCTIONTOHYDROLOGY Flashcards
(44 cards)
study of waters of the Earth such as its occurrence, circulation, distribution, properties and reaction with environment
Hydrology
study of the atmosphere
Meteorology
SOURCES OF WATER
Atmospheric water
Surface water
Subsurface water
precipitation
Atmospheric water
study of the waters of the Earth and atmosphere
Hydrometeorology
water above surface of Earth (lakes, rivers, seas and ocean)
Surface water
SALTWATER
97.5%
lakes and rivers
0.4%
water below surface of Earth (groundwater)
Subsurface water
FRESHWATER
2.5%
snow and ice
68.7%
groundwater
30.9%
An envelop of gases surrounding the earth and bound to it permanently by gravitational force
THE EARTH’S ATMOSPHERE
Composed of clean dry air, water vapor and impurities
THE EARTH’S ATMOSPHERE
Changes phase easily because critical pressure and atmosphere are above atmospheric ranges
WATER VAPOR
Agent or medium of heat transfer in the atmosphere
WATER VAPOR
0-4% by volume
WATER VAPOR
Nitrogen
Oxygen
Argon
Carbon Dioxide
Others (Neon, Helium, Krypton, Xeon, Ozone, Radon, Hydrogen)
78.08
20.95
0.93
0.03
<0.01
Most abundant greenhouse gas
WATER VAPOR
LAYERS OF ATMOSPHERE
Troposphere
Stratosphere
Mesosphere
Thermosphere
Exosphere
phenomenon of weather and climate occurs here; MSL (Mean Sea Level) to 10 km
Troposphere
10 to 50 km
Stratosphere
90 to 120 km
Thermosphere
120 km
Exosphere