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Common Assessment 1 SG
Common Assessment 1 SG

... hydrosphere by movement of matter • In gases (atmosphere) or water convection currents, cold air is more dense than warm air/water so it sink s • difference in water temperature in the ocean cause different density • Convection currents= movement of gases or liquids because of change in temperature ...
Atmospheric
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... By what 3 methods does the earth’s surface heat the air above it. Explain the difference in these three methods – you will have to research this! ...
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... This is the layer of the atmosphere closest to the Earth's surface, extending up to about 10-15 km above the Earth's surface. It contains 75% of the atmosphere's mass. At the very top of the troposphere is the tropopause where the temperature reaches a (stable) minimum. Some scientists call the trop ...
All About Meteorology - Library Video Company
All About Meteorology - Library Video Company

... One of the questions people frequently ask is:What’s the weather going to be like tomorrow? Knowing what the weather is going to be like an hour, day or week ahead of time impacts the lives of eve ryone around us.Weather affects the safety of ship and airline passengers, the amount of food that farm ...
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... – Contains 75% of our atmospheres gases – Weather clouds and smog occur in the troposphere ...
Modernization and Innovation in the Weather Bureau: From Origins
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... Signal Office continued to grow and advocate further meteorological study; by 1875  the annual budget reflects its growth with an increase of one hundred‐fold,  $400,000 per year (Fleming 2000). In 1890 the U.S. Weather Bureau was  established under the Department of Agriculture with Mark Harrington ...
Section 6.2
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... spark of light that occurs within a storm cloud, between a cloud and Earth’s surface, or between two storm clouds. ...
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Weather Forecasting - hrsbstaff.ednet.ns.ca
Weather Forecasting - hrsbstaff.ednet.ns.ca

... into orbit around the Earth and they monitor the behavior of the atmosphere and help us predict and understand the development and movement of weather systems (i.e., fronts, high pressure & low pressure systems). • They use technology such as infrared and visible light sensors and can determine clou ...
SCI 100 - Meteorology
SCI 100 - Meteorology

... What type of air mass would be responsible for the weather conditions listed below? (Write their names and 2-letter designation) (a) hot, muggy summer weather in the Midwest and the East (b) refreshing, cool breezes after a long summer hot spell on the Central Plains (c) persistent cold, damp weathe ...
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JUNIOR CERTIFICATE GEOGRAPHY

... CONVECTIONAL RAIN – normally near the equator or on a hot summers day in Ireland On a very hot day the sun heats the ground The air above the ground heats up and rises up quickly as it gets lighter As the air rises it also cools quickly and condenses to form clouds and then begins to rain This gives ...
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... II. Completion. Complete the sentences with the words from the box. Be aware that one word is not used: air Coriolis effect stratus water cycle stratosphere rain ai pressure 11. The three main types of clouds are cumulus, cirrus and ______________. 12. The most common type of precipitation is _____ ...
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Atmosphere and Weather Study Guide
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... 5. How does altitude affect air pressure & density? Altitude is your elevation, or distance from sea level. The higher up you go, the lower the pressure and density. The lower you go, the higher the pressure and density. 6. What causes air to have density & pressure? Air is made up of atoms and mole ...
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... – Solution: additional information, which is statistical and dynamical => use 3D and 4D (VAR) data assimilation, which is used on the basis of incomplete and possibly incorrect observations to analyse the likely current state of the atmosphere and to determine the error in the analysis. – Observatio ...
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... Solar heating of earth Solar radiation strikes the earth at different angles based on the latitude. At high latitudes – near the poles the sun’s energy is spread out over larger area At low latitudes – near equator the sun’s energy is concentrated in a small area ...
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... are unusual warm or cold waters in the ocean, they cause the air masses to move in different direction which can change the weather patterns severely. El Nino, a periodic condition of a warming of the waters in the Pacific is one of these phenomena. In polar ocean area ice occurs at the surface most ...
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... 2. The __weather__________________ is what happens on a particular day and this doesn’t always fit in with the overall climatic pattern. 3. The topics have weather that is much the same from day to day. In ___temperate______ regions, weather is much more variable. 4. It’s the __sun____ that drives o ...
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43 Weather

... and sunny? Will there be a thunderstorm like the one on the front of this card? These are 'luestions about weather. Meteorology is the study of factors that affect weather. One of the most important factors is the sun. The sun's energy warms land and water on Earth. The land and water then warm the ...
Tropical weather 1 Introduction 2 Heat, Moisture
Tropical weather 1 Introduction 2 Heat, Moisture

... Once an organized tropical weather system does develop, it may move in a predictable way for a while. Several different types of tropical weather systems exist, each having its own typical characteristics, including its size, speed and direction of motion. Some disturbances, for example, are known a ...
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Weather



Weather is the state of the atmosphere, to the degree that it is hot or cold, wet or dry, calm or stormy, clear or cloudy. Weather, seen from an anthropological perspective, is something all humans in the world constantly experience through their senses, at least while being outside. There are socially and scientifically constructed understandings of what weather is, what makes it change, the effect it has on humans in different situations, etc. Therefore, weather is something people often communicate about.Most weather phenomena occur in the troposphere, just below the stratosphere. Weather generally refers to day-to-day temperature and precipitation activity, whereas climate is the term for the statistics of atmospheric conditions over longer periods of time. When used without qualification, ""weather"" is generally understood to mean the weather of Earth.Weather is driven by air pressure (temperature and moisture) differences between one place and another. These pressure and temperature differences can occur due to the sun angle at any particular spot, which varies by latitude from the tropics. The strong temperature contrast between polar and tropical air gives rise to the jet stream. Weather systems in the mid-latitudes, such as extratropical cyclones, are caused by instabilities of the jet stream flow. Because the Earth's axis is tilted relative to its orbital plane, sunlight is incident at different angles at different times of the year. On Earth's surface, temperatures usually range ±40 °C (−40 °F to 100 °F) annually. Over thousands of years, changes in Earth's orbit can affect the amount and distribution of solar energy received by the Earth, thus influencing long-term climate and global climate change.Surface temperature differences in turn cause pressure differences. Higher altitudes are cooler than lower altitudes due to differences in compressional heating. Weather forecasting is the application of science and technology to predict the state of the atmosphere for a future time and a given location. The system is a chaotic system; so small changes to one part of the system can grow to have large effects on the system as a whole. Human attempts to control the weather have occurred throughout human history, and there is evidence that human activities such as agriculture and industry have modified weather patterns.Studying how the weather works on other planets has been helpful in understanding how weather works on Earth. A famous landmark in the Solar System, Jupiter's Great Red Spot, is an anticyclonic storm known to have existed for at least 300 years. However, weather is not limited to planetary bodies. A star's corona is constantly being lost to space, creating what is essentially a very thin atmosphere throughout the Solar System. The movement of mass ejected from the Sun is known as the solar wind.
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