this is a presentation of cyclone.in this ppt, various types of cyclones are given.its effects, formation, different names, types, emergency response on cyclone is given
In this episode, the following aspects of cyclone are discussed:
1. Origin of Cyclones
2. Types of cyclonic storms and their physical characteristics
3. Distribution of Cyclones
4. Environmental impacts of cyclones
5. Cyclone disaster Management.
India is a country of Disasters. We are looking into Disaster Management as a basic problem of India. Our own work in the field of Earthquakes is also discussed.
this is a presentation of cyclone.in this ppt, various types of cyclones are given.its effects, formation, different names, types, emergency response on cyclone is given
In this episode, the following aspects of cyclone are discussed:
1. Origin of Cyclones
2. Types of cyclonic storms and their physical characteristics
3. Distribution of Cyclones
4. Environmental impacts of cyclones
5. Cyclone disaster Management.
India is a country of Disasters. We are looking into Disaster Management as a basic problem of India. Our own work in the field of Earthquakes is also discussed.
Natural Hazards, Classification and AnalysisPaul Wozney
An introduction to the concept of natural hazards,, a look at some of the ways they are classified and information about criteria used to analyze and compare natural hazards for Global Geography 12 at Charles P. Allen High School.
The disasters that are existing or occurring in outer space beyond a planet, especially away from the planet Earth are called as extra terrestrial or extra planetary disasters.
Introduction to natural hazard and disaster management Jahangir Alam
The earth indeed a hazardous planet
There are 516 active volcanoes with an eruption every 15 days (on average)
Global monitors record approximately 2000 earth tremors everyday
There are approximately 2 earthquakes per day of sufficient strength to cause damage to homes and buildings, with severe damage occurring 15 to 20 times per year.
There are 1800 thunderstorms at any given time across the earth surface; lightening strikes 100 times every second.
On average there 4 to 5 tornadoes per day or 600 1000 per year.
NATURAL HAZARDS: SOME FACTS & STATISTICS
Environmental or Natural Hazards/Disasters generally refers to geophysical events such as earthquakes, volcanoes, drought, flooding, cyclone, lightening etc., that can potentially cause large scale economic damage and physical injury or death. Environmental hazards are sometimes known as ‘Act of God.’
about the formation and causes and impacts of the cyclone formation in the earth. and cyclone formed in the INDIA region whole about the briefly explained about cyclone
Natural Hazards, Classification and AnalysisPaul Wozney
An introduction to the concept of natural hazards,, a look at some of the ways they are classified and information about criteria used to analyze and compare natural hazards for Global Geography 12 at Charles P. Allen High School.
The disasters that are existing or occurring in outer space beyond a planet, especially away from the planet Earth are called as extra terrestrial or extra planetary disasters.
Introduction to natural hazard and disaster management Jahangir Alam
The earth indeed a hazardous planet
There are 516 active volcanoes with an eruption every 15 days (on average)
Global monitors record approximately 2000 earth tremors everyday
There are approximately 2 earthquakes per day of sufficient strength to cause damage to homes and buildings, with severe damage occurring 15 to 20 times per year.
There are 1800 thunderstorms at any given time across the earth surface; lightening strikes 100 times every second.
On average there 4 to 5 tornadoes per day or 600 1000 per year.
NATURAL HAZARDS: SOME FACTS & STATISTICS
Environmental or Natural Hazards/Disasters generally refers to geophysical events such as earthquakes, volcanoes, drought, flooding, cyclone, lightening etc., that can potentially cause large scale economic damage and physical injury or death. Environmental hazards are sometimes known as ‘Act of God.’
about the formation and causes and impacts of the cyclone formation in the earth. and cyclone formed in the INDIA region whole about the briefly explained about cyclone
This presentation encompasses what cyclones (tropical and midlatitude) are and how they form even where they occur. Even though almost all types of cyclones are highlighted in the slide the main focus is on Tropical and Mid-latitude cyclones. This is very helpful when one is searching for specifically the two types of cyclones.
A2 CAMBRIDGE GEOGRAPHY: HAZARDOUS ENVIRONMENTS - HAZARDS RESULTING FROM ATMOSPHERIC DISTURBANCES. It contain case studies: Hurricane Katrina 2005, Cloud Seeding in New Zealand 1950-1970.
Hydrometeorological hazard is a process or phenomenon of atmospheric, hydrological or oceanographic nature that may cause loss of life, injury or other health impacts, property damage, loss of livelihoods and services, social and economic disruption, or environmental damage.
Sedimentation is the tendency for particles in suspension to settle out of the fluid in which they are entrained and come to rest against a barrier. This is due to their motion through the fluid in response to the forces acting on them: these forces can be due to gravity, centrifugal acceleration, or electromagnetism.
A nuclear explosion is an explosion that occurs as a result of the rapid release of energy from a high-speed nuclear reaction. The driving reaction may be nuclear fission, nuclear fusion or a multistage cascading combination of the two, though to date all fusion-based weapons have used a fission device to initiate fusion, and a pure fusion weapon remains a hypothetical device.
Rare events are events that occur with low or high frequency, and the term is often used in particular reference to infrequent or hypothetical events that have potentially widespread impact and which might destabilize society. Rare events encompass natural phenomena (major earthquakes, tsunamis, hurricanes, floods, asteroid impacts, solar flares, etc.).
A chemical accident is the unintentional release of one or more hazardous substances which could harm human health or the environment. Chemical hazards are systems where chemical accidents could occur under certain circumstances. Such events include fires, explosions, leakages or releases of toxic or hazardous materials that can cause people illness, injury, disability or death.
A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface.
A disaster is a serious disruption, occurring over a relatively short time, of the functioning of a community or a society involving widespread human, material, economic or environmental loss and impacts, which exceeds the ability of the affected community or society to cope using its own resources.
A landslide, also known as a landslip or Mudslide, is a form of mass wasting that includes a wide range of ground movements, such as rockfalls, deep failure of slopes, and shallow debris flows. Landslides can occur underwater, called a submarine landslide, coastal and onshore environments.
An earthquake (also known as a quake, tremor or temblor) is is the shaking of the surface of the Earth, resulting from the sudden release of energy in the Earth's lithosphere that creates seismic waves. Earthquakes can range in size from those that are so weak that they cannot be felt to those violent enough to the people around and destroy whole cities.
Man made disasters are hazards caused by human action or inaction. They are contrasted with natural hazards. Man made disasters may adversely affect humans, other organisms and ecosystems. The frequency and severity of hazards are key elements in some risk analysis methodologies.
Diabetes is a rapidly and serious health problem in Pakistan. This chronic condition is associated with serious long-term complications, including higher risk of heart disease and stroke. Aggressive treatment of hypertension and hyperlipideamia can result in a substantial reduction in cardiovascular events in patients with diabetes 1. Consequently pharmacist-led diabetes cardiovascular risk (DCVR) clinics have been established in both primary and secondary care sites in NHS Lothian during the past five years. An audit of the pharmaceutical care delivery at the clinics was conducted in order to evaluate practice and to standardize the pharmacists’ documentation of outcomes. Pharmaceutical care issues (PCI) and patient details were collected both prospectively and retrospectively from three DCVR clinics. The PCI`s were categorized according to a triangularised system consisting of multiple categories. These were ‘checks’, ‘changes’ (‘change in drug therapy process’ and ‘change in drug therapy’), ‘drug therapy problems’ and ‘quality assurance descriptors’ (‘timer perspective’ and ‘degree of change’). A verified medication assessment tool (MAT) for patients with chronic cardiovascular disease was applied to the patients from one of the clinics. The tool was used to quantify PCI`s and pharmacist actions that were centered on implementing or enforcing clinical guideline standards. A database was developed to be used as an assessment tool and to standardize the documentation of achievement of outcomes. Feedback on the audit of the pharmaceutical care delivery and the database was received from the DCVR clinic pharmacist at a focus group meeting.
WRI’s brand new “Food Service Playbook for Promoting Sustainable Food Choices” gives food service operators the very latest strategies for creating dining environments that empower consumers to choose sustainable, plant-rich dishes. This research builds off our first guide for food service, now with industry experience and insights from nearly 350 academic trials.
"Understanding the Carbon Cycle: Processes, Human Impacts, and Strategies for...MMariSelvam4
The carbon cycle is a critical component of Earth's environmental system, governing the movement and transformation of carbon through various reservoirs, including the atmosphere, oceans, soil, and living organisms. This complex cycle involves several key processes such as photosynthesis, respiration, decomposition, and carbon sequestration, each contributing to the regulation of carbon levels on the planet.
Human activities, particularly fossil fuel combustion and deforestation, have significantly altered the natural carbon cycle, leading to increased atmospheric carbon dioxide concentrations and driving climate change. Understanding the intricacies of the carbon cycle is essential for assessing the impacts of these changes and developing effective mitigation strategies.
By studying the carbon cycle, scientists can identify carbon sources and sinks, measure carbon fluxes, and predict future trends. This knowledge is crucial for crafting policies aimed at reducing carbon emissions, enhancing carbon storage, and promoting sustainable practices. The carbon cycle's interplay with climate systems, ecosystems, and human activities underscores its importance in maintaining a stable and healthy planet.
In-depth exploration of the carbon cycle reveals the delicate balance required to sustain life and the urgent need to address anthropogenic influences. Through research, education, and policy, we can work towards restoring equilibrium in the carbon cycle and ensuring a sustainable future for generations to come.
Natural farming @ Dr. Siddhartha S. Jena.pptxsidjena70
A brief about organic farming/ Natural farming/ Zero budget natural farming/ Subash Palekar Natural farming which keeps us and environment safe and healthy. Next gen Agricultural practices of chemical free farming.
Artificial Reefs by Kuddle Life Foundation - May 2024punit537210
Situated in Pondicherry, India, Kuddle Life Foundation is a charitable, non-profit and non-governmental organization (NGO) dedicated to improving the living standards of coastal communities and simultaneously placing a strong emphasis on the protection of marine ecosystems.
One of the key areas we work in is Artificial Reefs. This presentation captures our journey so far and our learnings. We hope you get as excited about marine conservation and artificial reefs as we are.
Please visit our website: https://kuddlelife.org
Our Instagram channel:
@kuddlelifefoundation
Our Linkedin Page:
https://www.linkedin.com/company/kuddlelifefoundation/
and write to us if you have any questions:
info@kuddlelife.org
IPCC Vice Chair Ladislaus Change Central Asia Climate Change Conference 27 Ma...
Exogenous disasters cyclones
1. EXOGENOUS HAZARDS
• Hazards which originate above the surface of the
earth (in the atmosphere) are called exogenous
hazards.
• E.g. Drought, Rainfall, Snowfall, Winds, Hailstorm
3. ATMOSPHERIC DISASTERS
• Atmospheric Disasters that originate in the
atmosphere of the earth are called atmospheric
hazards. These include cyclones, tornadoes,
droughts, thunderstorms etc. Drought, Rainfall,
Snowfall, Winds, Hailstorm
4. CYCLONE
• A cyclone is a large scale air mass that rotates
around a strong center of low atmospheric
pressure. Cyclones are powerful and violent
windstorms, in which wind moves very fast in a
circular direction around a low pressure area.
The wind blows in anti clockwise circle in the
northern hemisphere and clockwise in the
southern hemisphere.
5.
6. NOMENCLATURE
Nomenclature Region of the world
• Typhoons China Sea, Pacific Ocean
• Hurricanes Caribbean Sea, Atlantic Ocean
• Tornados Southern part of USA
• Willy – willies Australia
• Tropical Cyclones Indian Ocean
7. TYPES OF CYCLONES
Generally cyclones are two types
Warm-core cyclones: These type of
cyclones are warm at the centre and cold
near the edges.
Cold-core cyclones: These type of cyclones
are coldest at the centre than near the edges.
8. TYPES OF CYCLONES
• Based on structure on the area of origin
Tropical cyclones: Cyclones that form between the
tropics of cancer and Capricorn are called tropical
cyclones.
Temperature cyclones: Cyclones develop over
temperature zones and high latitude regions are
called temperature cyclones. They are also known
as mid-latitude cyclone, frontal cyclone and extra
tropical cyclone.
9. • Cyclones have been categorized by the Indian
Meteorological Department into the following
types of disturbances based on the wind speed.
Surface wind speed (Km/h) Type of disturbance
Less than 31 Low Pressure
31-49 Depression
49-61 Deep depression
61-88 Cyclone storm
88-117 Severe cyclonic storm
117-220 Very severe cyclonic storm
>221 Super cyclone
10. TROPICAL CYCLONE
• A tropical cyclone is an intense low pressure area or a
whirl in the atmosphere over tropical or sub-tropical
waters, with organised convection (i.e. thunderstorm
activity) and winds at low levels, circulating either
anti-clockwise (in the northern hemisphere) or
clockwise (in the southern hemisphere). From the
centre of a cyclonic storm, pressure increases
outwards. The amount of the pressure drop in the
centre and the rate at which it increases outwards gives
the intensity of the cyclones and the strength of winds.
11. FORMATION OF CYCLONES
Tropical cyclones require certain conditions for their
formation. These are
• A source of warm, moist air derived from tropical
oceans with sea surface temperature normally near to or
in excess of 27 °C
• Winds near the ocean surface blowing from different
directions converging and causing air to rise and storm
clouds to form
12. FORMATION OF CYCLONES
• Winds which do not vary greatly with height - known
as low wind shear. This allows the storm clouds to
rise vertically to high levels;
• Coriolis force or spin induced by the rotation of the
Earth. The formation mechanisms vary across the
world, but once a cluster of storm clouds starts to
rotate, it becomes a tropical depression. If it
continues to develop it becomes a tropical storm, and
later a cyclone/ super cyclone will be formed .
13.
14. STRUCTURE OF TROPICAL
CYCLONES
• The main parts of a tropical cyclone are the
eye, the eyewall and the rainbands. Air
spirals in toward the center in a counter-
clockwise pattern in the northern hemisphere
clockwise direction in the southern
hemisphere.
15. EYE
• The hurricane's center is a relatively calm,
generally clear area of sinking air and light winds
that usually do not exceed 24 km/h and is typically
32-64 km across. An eye will usually develop when
the maximum sustained wind speeds go above 74 -
119km/h and is the calmest part of the storm.
16. EYE
• It probably has to do with the combination of "the
conservation of angular momentum" and
centrifugal force. The conservation of angular
momentum means is objects will spin faster as they
move toward the center of circulation. So air
increases it speed as it heads toward the center of
the tropical cyclone.
17.
18. EYEWALL
• Where the strong wind gets as close as it can is
the eyewall. The eyewall consists of a ring of
tall thunderstorms that produce heavy rains and
usually the strongest winds. Changes in the
structure of the eye and eyewall can cause
changes in the wind speed, which is an
indicator of the storm's intensity. The eye can
grow or shrink in size, and double (concentric)
eyewall can form.
19.
20. RAIN BANDS
• Curved bands of clouds and thunderstorms
that trail away from the eye wall in a spiral
fashion. These bands are capable of
producing heavy bursts of rain and wind, as
well as tornadoes. There are sometimes gaps
in between spiral rain bands where no rain or
wind is found.
21. RAIN BANDS
• In fact, if one were to travel between the
outer edge of a hurricane to its center, one
would normally progress from light rain and
wind, to dry and weak breeze, then back to
increasingly heavier rainfall and stronger
wind, over and over again with each period
of rainfall and wind being more intense and
lasting longer.
22.
23. EFFECTS OF CYCLONES
• Cyclones like other natural disasters, cause tremendous
loss to the lives and property wherever they strike. The
coastal areas all over the globe are significantly
affected.
• Some of the adverse impacts of cyclone are as given
below.
• The building collapse and houses get blown away.
• Flooding of low – lying coastal areas
24. Contd…
• Road and Rail transport get blocked or damaged by
flood water.
• Power supply failure/power outages.
• Contamination of water from dead animals and
routing food.
• Outbreak of epidemic like gastroenteritis and
mosquito-borne illnesses.
• Disruption of international shipping activities.
25. Contd…
• Damage of installations, dwelling and
communication system.
• The winds formed during cyclones can have
destructive effect, causing soil erosion and
defoliation of forests.
• Heavy rainfall from the cyclones can cause
flooding over extensive areas, inundating land,
isolating communities and destroying
infrastructure.
26. DISTRIBUTION OF CYCLONES
• The tropical cyclones are distributed in six regions
across the globe:
West Indies, Gulf of Mexico and Caribbean Sea
West North Pacific, Philippines Islands, China Sea and
Japanese Islands
Arabian Sea and Bay of Bengal
South Indian Ocean off Madagascar
Eastern Pacific Coastal region of Mexico & central
America
Western South Pacific, East coast of Australia
27. Measures to mitigate the cyclones
• Cyclones are violent tropical storms or winds in which
the air moves very fast in a circular direction. The
mitigation measures to prevent cyclones are:
Afforestation of land should be done, as forests act as
buffering area against strong winds and flash floods. It
also prevents soil erosion.
Trees prevent the entry of cyclones in land, thus acting
as a barrier to cyclones
Public should be alerted about the cyclones in
advance, so as to evacuate the areas prone to it.
28. Contd…
Buildings constructed should be resistant to wind and
water.
Construction of cyclone shelters help to minimize loss
of human lives.
Means of communication should be through
underground, as it could lead to communication break
during cyclones.
Cyclonic storms leads to flooding, hence measures
should be taken to prevent floods.
29. Contd…
Construction of embankments helps to minimize
floods.
Coastal shelter belt plantations helps to break
severe winds.
Plantation along the coastal areas prevents the loss
of soil, hence fields can be protected.
Public settlements should be avoided in coastal
areas in the range of 5kms from the sea.