Fog
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This document discusses the four main types of fog: radiation fog, which forms at night when the ground cools and humid air condenses; advection fog, which forms over oceans when warm, moist air moves over cooler surfaces; upslope fog, which occurs when moist air is pushed up mountains; and evaporation fog, which forms when cold air moves over warm water and adds vapor to the air. Each type of fog has specific environmental conditions that cause its formation.
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Clouds are formed when warm air rises and cools, causing water vapor to condense on particles in the air. There are three main categories of clouds based on altitude - high, middle, and low clouds. High clouds like cirrus are wispy and predict fair weather, while middle clouds like altostratus often precede rain or snow. Low clouds such as stratus are uniform gray sheets that can produce light precipitation. Cumulus clouds are puffy fair weather clouds that can develop into storm clouds. Fog is a cloud on the ground composed of water droplets. Different types of fog form through processes like cooling or evaporation.
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This document defines key terms related to weather processes and phenomena. It discusses topics like adiabatic lapse rates, air masses, altitude, clouds, condensation, humidity, instability, precipitation and more. Weather results from changes in atmospheric conditions, such as temperature and moisture levels, which can cause air masses to rise or fall. Various types of precipitation form through different processes, like convectional rainfall from rising warm air or orographic rainfall on the windward sides of mountains. Fog occurs when air is cooled to its dew point through advection or radiation.
Clouds and precipitation
This document discusses clouds and precipitation. It defines evaporation and condensation, and explains how clouds form when air rises and cools to the dew point, allowing water vapor to condense on condensation nuclei. The main cloud types - cirrus, stratus, and cumulus - are identified based on their location in the sky and the weather they predict. The four major types of precipitation - rain, snow, sleet, and hail - are described based on their characteristics and formation processes.
5EDzieniszewski
This document discusses various cloud formation processes and types of precipitation. It explains that air cools as it rises and warms as it compresses. Clouds form through orographic lifting as air rises over mountains, and through frontal wedging when a cold front meets a warm front. Convergence of air masses also forces air to rise and form clouds. The stability of the atmosphere influences whether clouds produce thunderstorms. Various cloud types are classified by height as high, middle, or low clouds. The processes of collision-coalescence and Bergeron processes produce precipitation from warm and cold clouds respectively. Rain, snow, sleet, glaze and hail are different types of precipitation that form under varying temperature conditions.
2tsmalley
This document discusses different types of clouds and precipitation. It describes high, middle, and low clouds, including cirrus, altocumulus, stratus, stratocumulus, and nimbostratus clouds. It also explains different forms of precipitation like rain, snow, sleet, hail, freezing rain, and fog. Key cloud and precipitation formation processes are outlined, such as how water droplets form and fall as rain or ice crystals form and fall as snow or hail depending on temperature conditions.
Types of rainfall
The document discusses five main types of rainfall: 1) Convective rainfall which occurs when surface air is heated and rises, cooling to form clouds 2) Cyclonic or frontal rainfall caused by clashes between air masses along fronts like warm and cold fronts 3) Orographic rainfall which happens when moist air is forced upwards by mountains, cooling and condensing into rain on the windward slopes. 4) Artificial rainfall can be created through cloud seeding using substances like dry ice or silver iodide to induce raindrop formation. Each type of rainfall has distinct meteorological causes and characteristics.
Precipitation
Precipitation occurs when water vapor in clouds condenses and falls to the Earth's surface. It can take solid forms like snow or ice, or liquid forms like rain or drizzle. The type depends on the temperature between the cloud and surface. Precipitation is essential for agriculture and plant growth but sometimes heavy precipitation can be destructive. It is measured using various instruments like rain gauges, snow gauges, radars, and satellites which consider factors like amount, intensity, duration, and spatial extent.
4dmanns
This document discusses various types of cloud formation and precipitation processes. It describes adiabatic temperature changes that can occur without heat exchange, as well as orographic and frontal lifting caused by air flowing over elevated land or cooler air. It defines convergence as air flowing together to cause lifting. It also outlines high, middle, and low cloud types, as well as vertical cloud development. Processes like condensation, the Bergeron process, and collision-coalescence are discussed in relation to cloud precipitation. Rain, snow, sleet, glaze and hail are also defined.
COMPRE-DECK- FAGARANG, AMER.pptx
Clouds form when water vapor condenses into liquid water or ice particles in the atmosphere. Tiny water droplets or ice crystals make up clouds and are suspended due to temperature and humidity conditions. Clouds require condensation nuclei like dust or salt particles for water vapor to condense around and form cloud droplets. The composition and type of cloud depends on factors like temperature, humidity, and whether droplets or ice crystals make up the cloud.
Science pp 1
The document discusses various meteorological and atmospheric concepts including adiabatic cooling and lifting, air masses and fronts, types of clouds, precipitation formation processes, and freezing rain events. It provides definitions and descriptions of key terms related to weather and climate.
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AS GEOGRAPHY - ATMOSPHERE AND WEATHER - WEATHER PHENOMENA
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CAMBRIDGE AS GEOGRAPHY REVISION: ATMOSPHERE AND WEATHER - 2.3 WEATHER PROCESS...
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Fog
- 2. Fog is a collection of liquid water droplets or ice crystals suspended in the air at or near the Earth's surface. Fog Cold air Warm and humid air Cold ground Water
- 3. There are four different types of fog: Radiation fog. Advection fog. Upslope fog. Evaporation fog.
- 4. This type of fog forms at night with calm winds. The humidity will reach 100% and fog will form.
- 5. Advection fog forms at sea when warm air associated with warm current and condensation takes place. This type of fog forms on the oceans too, this usually happens at night.
- 6. Upslope fog forms when light winds push moist air up of a mountain. This type of fog occurs in all mountains of North America.
- 7. This type of fog forms when sufficient water vapor is added to the air. Vapor fog forms when cold air moves over warm water.