earth science

Fronts

A Front is a boundary between air masses having different characteristics

Types Of Fronts

• Warm Fronts

• Cold Fronts

• Stationary Fronts

• occlude Fronts

Pressure Systems

• Low-pressure (cyclone): Rising air, counterclockwise in Northern hemisphere, cloudy/rainy weather

• High-pressure (Anticyclone) sinking air, clockwise in Northern hemisphere, fair weather

Types of Thunderstorm

1. Single-cell

2. Muti-cell clusters

3. Muti-cellline (squall line)

4. Super-cell (most dangerous)

Enchanced Fujita scale

System used to rate tornado intensity from EFO( WEAKEST) to EFS (STRONGEST) based on the dangerous obsessed after a tornado

Development Of Hurricanes

• Starts as over warm ocean water

warm, moist air rises-creates low pressure

• Surrounding air rushes in- creates rotating winds

• Coriolis force makes them spin

Thunderstorm has 3 stages

• Developing stage: is marked by a cumulus cloud that is being pushed upward a rising column of warm air (updraft)

• Mature stage: Where the storm Unreleaese heavy rain and lighting

• Dissipating stage; where it weakens and fades away

Ocean layers

1. Mixed layers (TOP)

2. Pycnocline(middle)

3. Deep ocean(bottom)

Thermohaline Circulation

A system of deep ocean currents driven by difference in the temperature (thermo) and salt content (halibe) of seawater, which together determined it’s density

Shoreline features

where the land meets the sea

Types of shorline plontonic plates

• Are responsible first continental drift

-causes a shorline to uplift forming steep clifs that extend into sea water

-The shorelines vegan as older rocks/poleo-coast which were later lifted above sea level.

Erosion & Deposition

• EROSION: Irregular shoreline will eventually straighten and smooth out overtime though erosion, water washing over the shoreline beats on the rocks that are straighten out

• Depositional Shoreline: Gently eloping rocks that are covered in sediments

• Explanation: Tidal currents and waves carry sediments inland, where they're deposited along gently shoreline

Eutrophication

• Is when bodies of water becomes overly enriched with nutrients, such as nitrogen and phosphorus. sources like fertilizer and sewage will cause excessive growth of algae and algal bloom. Onece these living organisms die and dicompose, it will deplete the water's oxygen and create a dangerous environment for aquatic life