Why do wildfires occur & how can we predict them? - PowerPoint PPT Presentation

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Why do wildfires occur & how can we predict them?

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They can do this by examining past wildfire data, preventing supply chain disruption, safeguarding factory and road workers' lives through live fire events, and predicting wildfire dataset risk around infrastructure and buildings. – PowerPoint PPT presentation

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Title: Why do wildfires occur & how can we predict them?


1
Why do wildfires occur how can we predict them?
2
It has become increasingly important to predict
when and where these catastrophic blazes will
spread as annual wildfire data seasons grow
longer and more destructive due to climate
change. But is it feasible to accomplish this?
How are wildfires forecastable?
3
How The Weather feeds the Combustion Triangle
  • A wildfire needs oxygen, fuel, and an ignition
    source to get going. Specific weather and
    climatic factors often interact to increase the
    likelihood of wildfire data outbreaks,
    determining whether they spread and the amount of
    area they consume quickly.

4
Fires are started by lightning, and vice versa.
  • The biggest flames are produced in many locations
    by lightning, widely acknowledged as the primary
    natural driver of wildfire ignition. Now that
    scientists have a better understanding of how
    lightning wildfires dataset might work as two
    components of the same self-sustaining cycle
  • Extreme heat from fire events evaporates moisture
    from the air, causing water vapor to rise into
    the atmosphere and frequently causing "dry"
    thunderstorms, in which the raindrops may
    evaporate before reaching the ground because of
    the intense heat.
  • The wildfire dataset smoke causes the
    thunderstorm cloud's charge separation to be
    amplified, which results in lightning.
  • Lightning strikes cause the already dry grass to
    catch fire.
  • The flames that have been lit emit too much heat
    and smoke pollution.
  • The loop keeps happening.
  • Wildfires are practically a given when dry
    thunderstorms may produce over 700,000 lightning
    strikes in a single day. By 2060, wildfire data
    started by lightning are expected to burn 30
    more land in the southern and eastern US,
    according to scientists.

5
Where Do Wildfires Begin?
  • 1. Very High Temperatures
  • Because hot air can hold more moisture than cold
    air and works somewhat like a sponge, longer and
    more intense heat waves caused by rising global
    temperatures enhance the chance of wildfire
    outbreaks. As a result, much dry vegetation
    serves as wildfire data fuel. This effect will be
    amplified by a lack of precipitation, which will
    greatly exacerbate the intensity of a fire
    season.
  • This pattern of excessive heat brought on by
    climate change may become commonplace in the
    upcoming years. According to projections, we
    could hit 2C of climate change by 2040 if
    emissions continue at their current rate. At that
    point, intense heat waves that typically only
    happen once every 1000 years could start
    happening every five years or more frequently.
  • According to scientists, 300 million Europeans
    might be affected by a 3C global average by the
    end of this century, leading to 96,000 annual
    deaths from excessive heat.

6
2. Heat Dry Conditions Dehydrate Plant Life
  • Low humidity and rising temperatures make it
    easier for shrubs, grass, and trees to become
    kindling for wildfires because dry vegetation
    easily becomes available wildfire fuel when there
    is insufficient moisture.

7
3. Climatic instability
  • The behavior of a fire can be directly influenced
    by the unsteady vertical moving air that happens
    when hot air rises cold air falls (much like
    boiling water) unrestrained updraft air currents
    can intensify a fire similarly to when a stove's
    damper is opened. The fire's additional heat
    strengthens this effect. And it contributes to an
    increase in smoke pollution.

8
4. The force of the wind
  • Stronger gusts of wind that change directions can
    happen more commonly when atmospheric instability
    rises. The drying out of plants can then be
    accelerated by strong winds, which can carry
    little burning debris and start new fires or
    provide fuel to existing ones.
  • The wind determines the direction and intensity
    of wildfires, which also provides oxygen to the
    flames and helps to fan them.

9
5. The Proper Material to Burn
  • A region's geographic characteristics
    significantly influence the burning potential or
    probability of a wildfire incident During severe
    heat waves and droughts, forested regions can
    become particularly parched and combustible. A
    little spark can quickly grow into a fierce fire.
  • However, climate change research indicates that
    the high-elevation combustibility barrier has
    been lowered, allowing forest fires to spread to
    higher, wetter elevations. This is contrary to
    the idea that mountainous regions are safer
    because of the colder air and increased moisture
    at higher elevations.

10
How do Scientists predict Wildfires?
  • Experts interested in wildfire prediction
    frequently use sophisticated computer modeling to
    anticipate the likelihood of a wildfire starting
    under various climate scenarios. This is because
    numerous environmental elements affect fire
    behavior and danger. Scientists studying fires
    can predict where and when a fire outbreak is
    likely to occur by experimenting with various
    temperatures and precipitation levels.

11
How People Influence Wildfire Events
  • Because they frequently happen close to populated
    areas and because drought and heat promote
    circumstances favorable to rapid burning, experts
    believe human-caused wildfires could be more
    damaging during the wildfire season
  • Campfires if they are not properly extinguished
    or are left unattended, adjacent plants may catch
    fire.
  • Burning debris - waste materials left behind from
    human activities, such as burning yard waste, can
    set neighboring dry plants on fire.
  • Pyrotechnics - commonly used around new year's
    eve, July 4th, and other holiday celebrations,
    these pyrotechnic shows pose a significant
    wildfire risk, prompting some states to outright
    prohibit fireworks.
  • Cigarettes - a drop in adult smoking contributed
    to a 9 reduction in annual wildfires in the usa
    caused by cigarettes. However, despite the
    intense heat and little humidity, the flora is
    still very vulnerable to even the tiny cigarette
    spark.
  • Vehicles and equipment - when the weather allows
    for rapid burning, wildfires can be easily
    started by vehicle accidents, engine sparks, or
    other equipment malfunctions.
  • Arson - hot weather conditions and dry vegetation
    render arson-caused wildfires a serious concern.
    They are frequently started with malice
    aforethought or to fraudulently get insurance
    money.
  • Utility lines can be a significant threat and
    have caused thousands of fire incidents,
    including the camp fire, the deadliest wildfire
    in California history, whether knocked over by
    strong winds or incorrect maintenance fails to
    avoid sparks.
  •  

12
Conclusion
  • Understanding how climate, geography, weather, or
    land cover influence fire behavior and the chance
    of a fire spreading can help one estimate
    wildfire risk to some extent, even though it is
    not always feasible to anticipate the precise
    cause or spark for a fire event.
  • Insurers, energy providers, and various other
    companies and organizations can use wildfire
    intelligence to boost resilience to climate
    change on multiple fronts as wildfire seasons
    become more unpredictable due to climate change.
    They can do this by examining past wildfire data,
    preventing supply chain disruption, safeguarding
    factory and road workers' lives through live fire
    events, and predicting wildfire dataset risk
    around infrastructure and buildings.
  • Businesses can also improve their consumer
    services by combining wildfire data insights with
    linked platforms and apps and customizing
    real-time smoke and fire notifications to
    minimize health consequences among their
    customers.
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