METEOROLOGY AND ASTRONOMY

Weather

Average atmospheric condition at a certain place at a given time

Climate

Average atmospheric conditions in a certain area over a long period of time

Wind movement

Hot air is less dense that cold air thus hot air rises and cold air sinks

Sea breeze

Takes place during the day; air flows from the sea to land

Land breeze

Takes place during the night; air flows from the land to sea

Cyclones

Violent whirling storm characterised by strong winds and rain covering large areas; created by winds converging at a low pressure area

Thunderstorms

Small cluster of storm clouds carrying heavy rain and something lightning

Tornadoes

Violent twisting funnel of air

Department of Science and Technology

DOST

Philippine Atmospheric Geophysical and Astronomical Services Administration

PAGASA

Philippine Institute of Volcanology and Seismology

PHILVOLCS

Department of Interior and Local Government

DILG

National Economic and Development Authority

NEDA

Meteorology

Study of the phenomenas in /of the atmosphere

Astronomy

Study of space, celestial bodies, and the behaviour of the universe

Aphelion

Farthest point of the Earth from the sun; colder temperatures

Perihelion

Closest part of the Earth in its orbit from the sun; hotter temperatures

Summer solstice

Longest days

Winter solstice

Shortest days

Equinox

Equal lengths of day and night

27

Days where the moon makes a full revolution around the Earth

Apogee

Farthest point of the moon from the Earth; lower gravitational pull — lower tides & less tide variation

Perigee

Closest point of the moon to the Earth; higher gravitational pull — higher tides & greater tide variation

Spring tide

High tides are higher and low tides are lower than usual

Neap tides

High tides are lower and low tides are higher than usual

Solar eclipse

Sun — Moon — Earth; occurs every 18 months but only repeats in the same location every 360-410 days

Lunar eclipse

Sun — Earth — Moon; happens during a full moon