What are the dangers of cloud seeding?
Unwanted ecological impacts, ozone depletion, prolonged ocean acidification, erratic changes in rainfall patterns, rapid warming if seeding is abruptly halted, and aeroplane effects, to mention a few, may not be severe enough to overcome the need to keep temperatures low.
What does silver iodide do?
The researchers concluded that silver iodide is an effective agent for causing precipitation in clouds with upper levels below -5′ C, and that precipitation is usually released 20 to 25 minutes after seeding in cumulus clouds but later in layer clouds.
What are the advantages and disadvantages of cloud seeding?
Pros of Cloud Seeding
- Cloud seeding can aid in poverty reduction.
- Cloud seeding can be used on a local level, which is very beneficial in dry areas.
Cons of Cloud Seeding
- Cloud seeding has the potential to pollute the air and contribute to acid rain.
- Cloud seeding-related soil pollution
Is cloud seeding expensive?
He estimated that ground-based cloud seeding costs as little as $4 per acre foot of water generated, while air-based cloud seeding costs $75 every acre foot of water produced.
Is cloud seeding bad for the environment?
The ingredient used in cloud seeding, silver iodide, is harmful to aquatic life. As a result, precipitation from planted clouds has the potential to harm the ecosystem. Scientists have developed benign alternatives to silver iodide in response to these concerns.
What is the most common chemical used in cloud seeding?
The most common substances used to seed clouds are silver iodide, potassium iodide, and dry ice (solid carbon dioxide). Liquid propane, which expands into a gas, has also been used. This may form ice crystals at higher temperatures than silver iodide.
Why is silver iodide used in artificial rain?
When silver iodide (AgI) is sprayed over clouds, it causes the water droplets in the clouds to coalesce into larger water drops, causing rain to fall. The amount of cloud condensation nuclei (CCN) around which water vapor can form small water droplets rises when silver iodide is present.
What are the 4 disadvantages of seeding?
- On some sites and across seasons, establishment is less stable than seedlings.
- Seedlings are not as well suited to deep, non-wetting sands or heavy textured soils as seedlings are.
- Some species require a unique seed treatment before they can be sown.
- Viable seed has a poor rate of survival.
What is the benefit of cloud seeding?
If cloud seeding is done, harvesting will be boosted and more food will be accessible from a variety of crops to feed the ever-increasing human population. The method has the ability to improve biomes, increase fertility, and provide additional farmland and land on which to build better dwellings.
What is the purpose of cloud seeding?
Cloud seeding is a weather modification technique that artificially adds condensation nuclei to the sky, giving a base for snowflakes or raindrops to form, improving a cloud’s potential to generate rain or snow.
Why don’t we cloud seed in Australia?
These are mainly orthographic clouds in Australia, which are generated by hilly topography forcing air upwards. As a result, mountains are required to make it rain. Cloud seeding to put out bushfires is also not an option because those mountains must be located in a clean atmosphere.
Which cloud type is most likely to produce hail?
Cumulonimbus clouds are multi-level clouds that stretch high into the sky in towers or plumes, giving them a threatening appearance. Cumulonimbus clouds, also known as thunderclouds, are the only cloud type capable of producing hail, thunder, and lightning.
Why is potassium iodide used in cloud seeding?
Silver iodide, potassium iodide, dry ice (solid carbon dioxide), and liquid propane are the most frequent substances used for cloud seeding. These salt particles serve as a core (cloud condensation nuclei or ice-nucleating particles), attracting water vapour from the cloud.
What are the different methods of cloud seeding?
Cloud seeding can be done in three ways: static, dynamic, or hygroscopic. Spreading a substance like silver iodide into clouds is known as static cloud seeding. Dynamic cloud seeding tries to increase vertical air currents, allowing more water to move through clouds and result in greater rain.
What is the Colour of silver iodide?
Yellow. The inorganic compound AgI stands for silver iodide. Although the compound is a bright yellow solid, samples almost invariably contain metallic silver impurities, resulting in a grey hue.