5 Atmospheric Stability
... Applied to the atmosphere, the term ‘stability’ simply means ‘resistant to change’. As mentioned in the introduction, the mention of stability here refers to vertical stability, as any form of sustained vertical motion will generate an unstable atmosphere. This upwards motion causes turbulence in th ...
... Applied to the atmosphere, the term ‘stability’ simply means ‘resistant to change’. As mentioned in the introduction, the mention of stability here refers to vertical stability, as any form of sustained vertical motion will generate an unstable atmosphere. This upwards motion causes turbulence in th ...
The climatology, meteorology, and boundary layer structure of
... than in colder seasons. There is almost no annual cycle in the number of events in the Southern ...
... than in colder seasons. There is almost no annual cycle in the number of events in the Southern ...
The Jet Stream INTRODUCTION
... The polar-front jet stream's location is one of the most influential factors on the daily weather pattern across North America. Meteorologists focus on the nature and position of the polar-front jet stream as they prepare weather forecasts. Changes in the jet stream indicate changes in the movement ...
... The polar-front jet stream's location is one of the most influential factors on the daily weather pattern across North America. Meteorologists focus on the nature and position of the polar-front jet stream as they prepare weather forecasts. Changes in the jet stream indicate changes in the movement ...
Chapter 10: Mid-latitude Cyclones Mid
... winds), resulting in stronger and more rapidly moving surface cyclones. ...
... winds), resulting in stronger and more rapidly moving surface cyclones. ...
Chapter 10: Mid-latitude Cyclones
... Upper air troughs develop behind surface cold fronts with the vertical pressure differences proportional to horizontal temperature and pressure differences. This is due to density considerations associated with the cold air. Such interactions also relate to warm fronts and the upper ESS5 atmos ...
... Upper air troughs develop behind surface cold fronts with the vertical pressure differences proportional to horizontal temperature and pressure differences. This is due to density considerations associated with the cold air. Such interactions also relate to warm fronts and the upper ESS5 atmos ...
Clouds - CVISfrogs
... Cumulonimbus clouds are much larger and more vertically developed than the fair weather cumulus cloud. It can exist as a single towering cloud, or can even develop into a line of such towers, also known as a "squall line." Fueled by vigorous convection, these clouds can climb vertically in the atmo ...
... Cumulonimbus clouds are much larger and more vertically developed than the fair weather cumulus cloud. It can exist as a single towering cloud, or can even develop into a line of such towers, also known as a "squall line." Fueled by vigorous convection, these clouds can climb vertically in the atmo ...
Lecture:Moisture
... As the number of water vapor molecules in the air increase in number, they will have more chance of being close to another molecule and being attracted to each other. After there are a certain number of molecules in the air, any more molecules will cause the molecules to clump together forming a liq ...
... As the number of water vapor molecules in the air increase in number, they will have more chance of being close to another molecule and being attracted to each other. After there are a certain number of molecules in the air, any more molecules will cause the molecules to clump together forming a liq ...
Sounding Paper for METR 3613 - University of Oklahoma School of
... eddies) and weak turbulence, with the largest increase in depth occurring between 1400 UTC and 1700 UTC. This boundary layer depth increase was marked by an increase in height of the inversion layer and steepening low-level lapse rates throughout the day. Due to the nearly constant moisture content ...
... eddies) and weak turbulence, with the largest increase in depth occurring between 1400 UTC and 1700 UTC. This boundary layer depth increase was marked by an increase in height of the inversion layer and steepening low-level lapse rates throughout the day. Due to the nearly constant moisture content ...
Air Pressure and Winds-I
... 1. Atmospheric pressure is the pressure exerted by the mass of air above a region. 2. A change in surface air pressure can be brought about by changing the mass above the surface. 3. Difference in horizontal air pressure produces a horizontal pressure gradient force (PGF). 4. The pressure gradie ...
... 1. Atmospheric pressure is the pressure exerted by the mass of air above a region. 2. A change in surface air pressure can be brought about by changing the mass above the surface. 3. Difference in horizontal air pressure produces a horizontal pressure gradient force (PGF). 4. The pressure gradie ...
Weather Presentation
... ground, causing the hot air to rise and spread out. This rising air creates an air "void", or a lowpressure system in the area above the ground. However, when the air cools and sinks back down to the ground, a high-pressure system is created. High pressure systems are associated with clear, cool wea ...
... ground, causing the hot air to rise and spread out. This rising air creates an air "void", or a lowpressure system in the area above the ground. However, when the air cools and sinks back down to the ground, a high-pressure system is created. High pressure systems are associated with clear, cool wea ...
Jet Stream Activity Packet Handout
... Figure 1 - Northern Hemisphere depicting upper-air westerlies with troughs and ridges 2. The upper-air westerlies exhibit clockwise (anticyclonic) curvature in ridges. As shown in Figure 1, a line can be drawn that divides a ridge into two, often symmetrical, sectors. Such a line is known as the rid ...
... Figure 1 - Northern Hemisphere depicting upper-air westerlies with troughs and ridges 2. The upper-air westerlies exhibit clockwise (anticyclonic) curvature in ridges. As shown in Figure 1, a line can be drawn that divides a ridge into two, often symmetrical, sectors. Such a line is known as the rid ...
Meteorology Chapter 6 – Air Pressure and Winds Air pressure – the
... Friction as a factor affecting wind is important only within the first few kilometers of Earth’s surface. • Friction slows winds speed and as a result reduces the Coriolis force. So, the movement of air is at an angle across the isobars, toward the area of low pressure. • In whatever hemisphere, ...
... Friction as a factor affecting wind is important only within the first few kilometers of Earth’s surface. • Friction slows winds speed and as a result reduces the Coriolis force. So, the movement of air is at an angle across the isobars, toward the area of low pressure. • In whatever hemisphere, ...
Atmosphere
... b. This forces the warm air, which is less dense to move up. c. Air moves from areas of high density to areas of low density. d. In its simplest form, wind can be thought of as air moving from an area of high pressure to an area of low pressure. ...
... b. This forces the warm air, which is less dense to move up. c. Air moves from areas of high density to areas of low density. d. In its simplest form, wind can be thought of as air moving from an area of high pressure to an area of low pressure. ...
Thermal Wind Application, Page 1 Synoptic Meteorology I: Thermal
... We first examine two soundings from the southeastern United States, one at Nashville, TN (BNA; Figure 1) and one at Charleston, SC (CHS; Figure 2). Below 800 hPa, both soundings exhibit strongly veering wind profiles, where the wind direction turns clockwise with increasing height. If we approximate ...
... We first examine two soundings from the southeastern United States, one at Nashville, TN (BNA; Figure 1) and one at Charleston, SC (CHS; Figure 2). Below 800 hPa, both soundings exhibit strongly veering wind profiles, where the wind direction turns clockwise with increasing height. If we approximate ...
Mountain Meteorology (powerpoint)
... • http://photojournal.jpl.nasa.gov/jpegMod/PIA03 343_modest.jpg ...
... • http://photojournal.jpl.nasa.gov/jpegMod/PIA03 343_modest.jpg ...
UNIT OVERVIEW STAGE ONE: Identify Desired Results Established
... 2.2r Substances enter the atmosphere naturally and from human activity. Some of these substances include dust from volcanic eruptions and greenhouse gases such as carbon dioxide, methane, and water vapor. These substances can affect weather, climate, and living things. ...
... 2.2r Substances enter the atmosphere naturally and from human activity. Some of these substances include dust from volcanic eruptions and greenhouse gases such as carbon dioxide, methane, and water vapor. These substances can affect weather, climate, and living things. ...
answer key
... Use Figure 1. The saturation vapor pressure (es) at sea level was 18 mb at 15°C. Because the initial relative humidity was 50%, the actual vapor pressure (e) at sea level was 9 mb. At 1 km, the new es ≈ 9 mb. Because the moisture in the parcel did not change, e still is 9 mb. Thus, the relative humi ...
... Use Figure 1. The saturation vapor pressure (es) at sea level was 18 mb at 15°C. Because the initial relative humidity was 50%, the actual vapor pressure (e) at sea level was 9 mb. At 1 km, the new es ≈ 9 mb. Because the moisture in the parcel did not change, e still is 9 mb. Thus, the relative humi ...
Unit 2: Meteorology
... 2.2r Substances enter the atmosphere naturally and from human activity. Some of these substances include dust from volcanic eruptions and greenhouse gases such as carbon dioxide, methane, and water vapor. These substances can affect weather, climate, and living things. ...
... 2.2r Substances enter the atmosphere naturally and from human activity. Some of these substances include dust from volcanic eruptions and greenhouse gases such as carbon dioxide, methane, and water vapor. These substances can affect weather, climate, and living things. ...
Microclimates
... Occasionally, a temperature inversion can make it warmer in upland regions, but such conditions rarely last for long. With higher hills and mountains, the average temperatures can be so much lower that winters are longer and summers much shorter. Higher ground also tends to be windier, which makes ...
... Occasionally, a temperature inversion can make it warmer in upland regions, but such conditions rarely last for long. With higher hills and mountains, the average temperatures can be so much lower that winters are longer and summers much shorter. Higher ground also tends to be windier, which makes ...
syllabus_MET_4410 - My FIT (my.fit.edu)
... Mesoscale Meteorology and Forecasting, Edited by P. S. Ray (1986) Cloud Dynamics, Robert A. Houze Jr. (1993) Storm and Cloud Dynamics, Cotton and Anthes, (1982a) Synoptic-Dynamic Meteorology in Middle Latitudes Volume II: Observations and Theory of weather Systems, Bluestein ...
... Mesoscale Meteorology and Forecasting, Edited by P. S. Ray (1986) Cloud Dynamics, Robert A. Houze Jr. (1993) Storm and Cloud Dynamics, Cotton and Anthes, (1982a) Synoptic-Dynamic Meteorology in Middle Latitudes Volume II: Observations and Theory of weather Systems, Bluestein ...
unit #6 weather - Standards Aligned System
... 3. Compared to areas of low pressure, why do areas of high pressure have fewer clouds? ...
... 3. Compared to areas of low pressure, why do areas of high pressure have fewer clouds? ...
Atmospheric circulation structures associated with freezing rain in
... variability among the categories. The longest events are found in the EC and CP categories. Moreover, 80% of all EC events last over 12h, coinciding with conclusions reached by Rauber et al. (9): “processes occurring on the cold side of moving and stationary warm fronts and deep within EC air masses ...
... variability among the categories. The longest events are found in the EC and CP categories. Moreover, 80% of all EC events last over 12h, coinciding with conclusions reached by Rauber et al. (9): “processes occurring on the cold side of moving and stationary warm fronts and deep within EC air masses ...
Cold-air damming
Cold air damming, or CAD, is a meteorological phenomenon that involves a high pressure system (anticyclone) accelerating equatorward east a north-south oriented mountain range due to the formation of a barrier jet behind a cold front associated with the poleward portion of a split upper level trough. Initially, a high pressure system moves poleward of a north-south mountain range. Once it sloshes over poleward and eastward of the range, the flow around the high banks up against the mountains, forming a barrier jet which funnels cool air down a stretch of land east of the mountains. The higher the mountain chain, the deeper the cold air mass becomes lodged to its east, and the greater impediment it is within the flow pattern and the more resistant it becomes to intrusions of milder air.As the equatorward portion of the system approaches the cold air wedge, persistent low cloudiness, such as stratus, and precipitation such as drizzle develop, which can linger for long periods of time; as long as ten days. The precipitation itself can create or enhance a damming signature, if the poleward high is relatively weak. If such events accelerate through mountain passes, dangerously accelerated mountain-gap winds can result, such as the Tehuantepecer and Santa Ana winds. These events are seen commonly in the northern Hemisphere across central and eastern North America, south of the Alps in Italy, and near Taiwan and Korea in Asia. Events in the southern Hemisphere have been noted in South America east of the Andes.