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Clouds From the Ground

Short answer: Cloud seeding adds particles such as silver iodide or salt to clouds so water vapor condenses or freezes on them, potentially increasing rain or snow. Ground-based generators burn a silver iodide solution and rely on winds to carry the particles into suitable clouds; aircraft are used too.

How much precipitation it adds is debated. The footage shows a large vapor plume billowing from a ground test stand; it does not appear to show cloud seeding itself.

VideoWrite-up1 sources
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What should you know about Clouds From the Ground?

Quick facts. Each one stands alone and has a stable ID you can cite.

  1. Silver iodide or salt.

    DD-388-F01 · Write-up · Exhibit A (Particles)

  2. Act as ice or condensation nuclei.

    DD-388-F02 · Write-up · Exhibit B (Nuclei)

Video transcript: Clouds From the Ground: Ground Generators Can Send Silver Iodide up Into Clouds

Did you know? Cloud seeding from the ground involves releasing particles, such as silver iodide or salt, into the atmosphere from ground-based generators to encourage precipitation. These particles act as cloud condensation or ice nuclei, helping water vapor and clouds condense into droplets or form ice crystals, which then grow heavy enough to fall as rain or snow. Ground-based seeding is typically used when weather conditions, such as favorable wind patterns, allow the particles to be carried into suitable clouds. This method is often deployed in areas experiencing drought or where water resources need to be augmented. NOW YOU KNOW!

Burned-in captions, read frame by frame (see transcript.md) · 30.3s Reel ·

Video coming soonClouds From the Ground · Instagram Reel
Clouds From the Ground: Ground Generators Can Send Silver Iodide up Into Clouds Instagram Reel · · 30.3s

The write-up

Ground generators can send silver iodide up into clouds. The particles help ice crystals form.

  1. Exhibit A

    Particles

    Silver iodide or salt.

  2. Exhibit B

    Nuclei

    Act as ice or condensation nuclei.

  3. Exhibit C

    Ground

    Generators release from the ground.

  4. Exhibit D

    Wind

    Wind carries particles up.

  5. Exhibit E

    Effectiveness

    Debated.

Questions people ask about Clouds From the Ground

Which chemical is common?

Ice nuclei.

Source: Write-up · Exhibit A (Particles) · Wikipedia: Cloud seeding

What carries particles from the ground?

Updrafts.

Source: Write-up · Exhibit B (Nuclei) · Wikipedia: Cloud seeding

What is the goal?

Precipitation.

Source: Write-up · Exhibit C (Ground) · Wikipedia: Cloud seeding

Is its effect certain?

Studies vary.

Source: Write-up · Exhibit D (Wind) · Wikipedia: Cloud seeding

What else delivers seed?

Airborne.

Source: Write-up · Exhibit E (Effectiveness) · Wikipedia: Cloud seeding

Test Your Knowledge

All quizzes →

5 questions, all from this case file. Answers are revealed instantly.

  1. Which chemical is common?

    1. Silver iodide
    2. Chlorine
    3. Sugar
    4. Lead
    Show the answer

    Answer: A. Silver iodide Ice nuclei. Source: Write-up · Exhibit A (Particles) · Wikipedia: Cloud seeding

  2. What carries particles from the ground?

    1. Wind
    2. Rockets only
    3. Birds
    4. Rain
    Show the answer

    Answer: A. Wind Updrafts. Source: Write-up · Exhibit B (Nuclei) · Wikipedia: Cloud seeding

  3. What is the goal?

    1. More rain or snow
    2. Fewer clouds
    3. Rainbows
    4. Heat
    Show the answer

    Answer: A. More rain or snow Precipitation. Source: Write-up · Exhibit C (Ground) · Wikipedia: Cloud seeding

  4. Is its effect certain?

    1. No, it is debated
    2. Yes, always
    3. It never works
    4. Only at night
    Show the answer

    Answer: A. No, it is debated Studies vary. Source: Write-up · Exhibit D (Wind) · Wikipedia: Cloud seeding

  5. What else delivers seed?

    1. Aircraft
    2. Boats
    3. Trains
    4. Pipes
    Show the answer

    Answer: A. Aircraft Airborne. Source: Write-up · Exhibit E (Effectiveness) · Wikipedia: Cloud seeding

Cite this case file

Easterling, Marcus. "Clouds From the Ground." The Detail Department (DetailEnjoyer), case file DD-388, last updated Nov 23, 2024. https://detailenjoyer.com/case/clouds-from-the-ground/

Permalink: https://detailenjoyer.com/case/clouds-from-the-ground/ · Last updated

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