The Atmosphere-Jenn's section
Terms
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- front
- boundary between two different air masses
- maritime tropical
- warm and moist air mass
- hurricane
- a doughnut shaped ring of a strong counterclockwise winds exceeding 115 kilometers per hour and surronding an area of extremely low pressure at the center
- What type of damage can a hurricane cause?
- wind damage, storm surge, and inland freshwater flooding
- eye
- relative calm area of clear skies in the middle of the hurricane
- How do hurricanes lose strength?
- as they move over land where the source of warm moist air is cut off or when they move over colder ocean waters
- adiabatic
- temperature change when no heat is added or removed to the system
- When does condensation occur in rising air?
- when the air temperature and dew point temperature reach an altitude where they are the same temperature
- weather forecasting
- methods used to determine the future state fof the atmosphere
- How is it possible for a temperature to change to occur when no heat is added or subtracted?
- compression and expanding of gas
- How are moisture and energy trnsferred in the atmosphere?
- convection, winds, and the adiabatic process
- moist adiabatic lapse rate
- when a moist air rises, heat is released to the surronding air during condensation, the cooling rate slows to 6 dgrees per kilometer
- What is a stationary front?
- It occurs when a warm air mass and a cold air mass are side by side with neither moving. Weather is similar to a warm front.
- Whatwould happen if the global wind convection systems did not exist to redistribute energy?
- the pole would become colder whole the tropics grew warmer
- Saffir-Simpson Hurricane Scale
- rates wind speeds, surface pressure, storm surges, and damage potential
- storm surge
- a dome of water 65 to 80 km wide near the point where the eye lands
- tropical storm warning
- tropical storm conditions are expected in your area within the next 24 hours
- How is the Earth unevenly heated and what does this result in?
- There is a surplus of incoming energy at teh tropical latitudes and a deficit at the poles. These resulting in zones of prevailing winds.
- tracks
- paths of air masses that travel through the United States
- what do isobars drawn close together indicate?
- steep pressure gradients and strong winds
- tropical storm watch
- tropical storm conditions with sustained winds from 39 to 73 miles per hour are pissible in next 36 hours
- When and where do hurricanes develop?
- In the late summer over ocean water that reach 27 degrees or higher
- Far ahead of where it meets the ground are extended periods of precipitation. What type of front is this?
- warm front
- anticyclone
-
is a high pressure air mass with tthe winds moving in a clowck wise direction away from the center
remember hanna goes outside to get high - What happens when a parcel of air rises and cools?
- its capacity to hold water vapor decreases and its relative humidity increases
- What happens to density when the amount of moisture in the air increases?
- the density decreases
- probability of occurrence
- the likelihood that the weather will change over a period of time
- What type of information does a station model include?
-
amount of cloud cover, barometric pressure, temperature, dewpoint, wind direction, wind speed
(in reference tables) - How do clouds form?
- Clouds form from condensation of rising air
- synopsis
- a summary of weather conditions all over the United States
- which side of the mountain had drier air?
- leeward side, downslope
- maritime polar
- cool and moist
- hurricane watch
- hurricane conditions are possible in your area within the next 36 hours
- What type of weather characteristics are associated with a cyclone?
- clouds and precipitation
- What is the corrider in the northeast?
- the area where all air masses move making weather difficult to predict
- What happens in an occluded front?
- A faster moving cold front overtakes a slower moving warm front the warmer air, on the ground the weateher characteristivs of both fronts occur without a gap of sequence
- continental polar
- cold and dry
- cyclone
- a low is a low pressure air mass with the winds moving in a counterclockwise direction in toward the center
- What does decreasing air pressure bring?
- warm unsettled air and rainy weather
- mid-latitude cyclones
- a cyclone where a cold front catches up with a warm front. They tend to last about seven days.
- How do you convert pressure on a station model to milibars?
- when an abbr. is below 500 add a 9 in front ex. 196 - 1019.6 mb when an abbr is above 500 add a 9 infront of it. ex. 576- 957.6 mb
- dry adiabatic lapse rate
- when a sample of dry air rises or descends it temperature changes adiabatically at a rate of 10 degrees per kilometer
- What weather is associated with anticyclones?
- cool, clear weather
- What happens to density when pressure decreases?
- density decreases
- Which front moves fastest?
- cold fronts
- When have most of the improvements in weather forecasting occured?
- in the last half century
- hurricane warning
- hurricane conditions are expected in 24 hours or less
- tornadoes
- voilent windstorms what take the form of a rotating funnel of air that extends downward from a cumulonimbus cloud
- waterspouts
- tornadoes over water
- continental tropical
- hot and dry
- What happens when a cold front moves through?
- thunderstorms occur and precipitation for a short period of time. It stops abruptly and becomes cool and clear
- What does increasing air pressure bring?
- cool anc clear weather
- squall lines
- moving lines of thunderstorms
- Explain the temperature changes as moist air is forced over a mountain
- warm,moist air travels over windward side of the mountain, it cools until, when the air descends down the mountain the air heats up