What specific meteorological criteria must be met for a volcanic eruption to trigger a mandatory airspace closure and subsequent insurance payout?
Fan-out diagram
Seed → topic clusters → sub-queries, per model.
Badge and edge weight = share of passes that produced the query. Hover a query for its intent and routing format.
Query classes
Google's semantic query class for every sub-query: what kind of answer each search is after, simulated vs real.
Classes come from the query-classifier (a local Laya model). 2 of 2 calls are low-confidence (under 50%) — hover a query in the table to see its confidence. 36 queries are still being classified.
What the models actually searched
Each model answered the query with its own web search. These are the searches it ran, matched to the closest simulated query.
- AIC A 08/25 · airnav.ge
- AIC 06 2025 Management of Volcanic Ash Events in Tallinn FIR · eaip.eans.ee
- Quantitative Volcanic Ash (QVA) Forecasts · metoffice.gov.uk
- | | · icao.int
- AC 00-45H · faa.gov
- Volcanic Ash Contingency Plan · icao.int
- Insurance Topics | Parametric Disaster Insurance · content.naic.org
- Parametric Insurance for Natural Disasters: Frequently Asked Questions · everycrsreport.com
Semantic map
Every query placed by meaning (EmbeddingGemma 2, 256-d). Shaded regions are topics, nearby points are near-paraphrases, and a circle's size is how often the query came back.
Queries
| Query / type | Search | Intent | Query class | Routing format | Cluster | Freq ↓ | Weight |
|---|---|---|---|---|---|---|---|
volcanic ash cloud weather conditions aviation closure criteria REFORMULATION | Google ↗ AI Mode ↗ | Find the specific weather metrics and ash concentration levels that mandate shutting down airspace. | — | web_article | aviation airspace closure meteorologica… | 1x of 3 | |
volcanic ash weather conditions for airspace closure REFORMULATION | Google ↗ AI Mode ↗ | Find the precise meteorological and atmospheric thresholds used by aviation authorities to close airspace due to volcanic ash. | — | web_article | aviation airspace closure meteorologica… | 1x of 3 | |
volcanic ash advisory center meteorological criteria for airspace closure REFORMULATION | Google ↗ AI Mode ↗ | Find the official weather and ash concentration standards used by aviation authorities to close airspace. | — | web_article | aviation airspace closure meteorologica… | 1x of 3 | |
how do meteorological winds affect volcanic ash dispersion for flight safety RELATED | Google ↗ AI Mode ↗ | Understand the role of wind speed, direction, and atmospheric stability in ash cloud movement. | — | web_article | aviation airspace closure meteorologica… | 1x of 3 | |
business interruption insurance volcanic ash cloud payout criteria RELATED | Google ↗ AI Mode ↗ | Understand how insurance companies verify volcanic events to trigger business interruption claims. | — | faq_page | business interruption insurance policies | 1x of 3 | |
business interruption insurance volcano ash cloud payout policy RELATED | Google ↗ AI Mode ↗ | Understand how business interruption or commercial insurance policies handle claims related to volcanic airspace closures. | — | pdf_whitepaper | business interruption insurance policies | 1x of 3 | |
business interruption insurance claims volcano ash cloud flight ban payout IMPLICIT | Google ↗ AI Mode ↗ | Discover how airlines or businesses claim insurance payouts due to mandated airspace closures. | — | pdf_whitepaper | business interruption insurance policies | 1x of 3 | |
icao volcanic ash advisory center threshold concentration limits ENTITY EXPANSION | Google ↗ AI Mode ↗ | Identify the specific governing bodies and numerical concentration thresholds that dictate mandatory flight bans. | — | product_spec_sheet | aviation airspace closure meteorologica… | 1x of 3 | |
what weather conditions cause ash plumes to spread over flight paths IMPLICIT | Google ↗ AI Mode ↗ | Learn about the wind patterns and atmospheric stability that transport volcanic ash into commercial corridors. | — | glossary/definition | aviation airspace closure meteorologica… | 1x of 3 | |
volcano ash advisory center vaac threshold wind speed criteria for closure ENTITY EXPANSION | Google ↗ AI Mode ↗ | Identify the specific organizational entities and numerical thresholds used to issue aviation red alerts. | — | api_reference | aviation airspace closure meteorologica… | 1x of 3 | |
what weather patterns cause volcanic ash to ground flights IMPLICIT | Google ↗ AI Mode ↗ | Learn about the wind directions, jet stream interactions, and weather patterns that make volcanic plumes dangerous to aviation. | — | tutorial_video/transcript | aviation airspace closure meteorologica… | 1x of 3 | |
aviation insurance vs business interruption policy for volcanic ash disruption COMPARATIVE | Google ↗ AI Mode ↗ | Compare different types of insurance policies to see which one actually covers airspace closure losses. | — | comparison_table | business interruption insurance policies | 1x of 3 | |
force majeure vs weather related insurance payout volcanic eruption COMPARATIVE | Google ↗ AI Mode ↗ | Compare how insurers categorize volcanic eruptions versus standard weather events for payout eligibility. | — | comparison_table | business interruption insurance policies | 1x of 3 | |
aviation insurance force majeure volcanic eruption coverage COMPARATIVE | Google ↗ AI Mode ↗ | Compare how standard insurance vs. specialized aviation policies handle force majeure clauses during volcanic events. | — | faq_page | business interruption insurance policies | 1x of 3 | |
ICAO volcanic ash contingency plan thresholds and meteorological triggers ENTITY EXPANSION | Google ↗ AI Mode ↗ | Identify the international bodies and standardized documents governing volcanic airspace closures. | — | pdf_whitepaper | aviation airspace closure meteorologica… | 1x of 3 | |
what weather conditions force the FAA to close airspace due to volcano REFORMULATION | Google ↗ AI Mode ↗ | Find exact FAA rules regarding meteorological triggers for airspace shutdowns. | — | faq_page | aviation airspace closure meteorologica… | 1x of 3 | |
commercial pilot guide to flying near volcanic ash clouds PERSONALIZED | Google ↗ AI Mode ↗ | Find operational guidelines and safety limits for pilots encountering volcanic ash in various weather states. | — | how_to_steps | aviation airspace closure meteorologica… | 1x of 3 | |
how do airlines file insurance claims for flight cancellations due to volcanic eruptions PERSONALIZED | Google ↗ AI Mode ↗ | Discover the practical steps an entity takes to claim insurance after a mandatory closure. | — | how_to_steps | business interruption insurance policies | 1x of 3 | |
aviation insurance policy wording volcanic ash exclusion clause IMPLICIT | Google ↗ AI Mode ↗ | Read actual insurance policy excerpts regarding volcanic ash damage and flight suspensions. | — | pdf_whitepaper | business interruption insurance policies | 1x of 3 | |
meteorological factors in volcanic ash dispersion REFORMULATION | Google ↗ AI Mode ↗ | Research how temperature, wind speed, and humidity affect the spread and persistence of volcanic ash in the atmosphere. | — | glossary/definition | aviation airspace closure meteorologica… | 1x of 3 | |
volcanic ash concentration ppm threshold for safe aircraft engine operation REFORMULATION | Google ↗ AI Mode ↗ | Find the exact numerical concentration limits of ash in the air that mandate grounding flights. | — | product_spec_sheet | aviation airspace closure meteorologica… | 1x of 3 | |
meteorological factors in ICAO volcanic ash contingency plans ENTITY EXPANSION | Google ↗ AI Mode ↗ | Learn international standards set by ICAO regarding weather and volcanic ash. | — | web_article | aviation airspace closure meteorologica… | 1x of 3 | |
met office vaac dispersion model criteria ENTITY EXPANSION | Google ↗ AI Mode ↗ | Examine how meteorological offices model ash movement to advise governments on airspace safety. | — | case_study | aviation airspace closure meteorologica… | 1x of 3 | |
force majeure clause in commercial insurance volcanic eruption RELATED | Google ↗ AI Mode ↗ | Check whether volcanic eruptions are legally classified as force majeure in standard contracts. | — | web_article | business interruption insurance policies | 1x of 3 | |
can airlines claim business interruption for temporary airspace closures RELATED | Google ↗ AI Mode ↗ | Determine the financial impact and compensation eligibility for grounded flights. | — | forum/qna | business interruption insurance policies | 1x of 3 | |
does travel insurance cover volcanic ash flight cancellation RELATED | Google ↗ AI Mode ↗ | Check if passenger-level travel insurance triggers payouts based on weather-related flight cancellations from volcanoes. | — | forum/qna | business interruption insurance policies | 1x of 3 | |
case study airline losses 2010 Eyjafjallajokull eruption insurance payout ENTITY EXPANSION | Google ↗ AI Mode ↗ | Examine historical precedent regarding insurance payouts and airspace closures from major eruptions. | — | case_study | business interruption insurance policies | 1x of 3 | |
satellite tracking of sulfur dioxide and ash for flight path restriction RELATED | Google ↗ AI Mode ↗ | Understand the technological and meteorological monitoring used to detect ash clouds. | — | web_article | aviation airspace closure meteorologica… | 1x of 3 | |
volcanic ash cloud height vs wind shear hazard analysis COMPARATIVE | Google ↗ AI Mode ↗ | Evaluate how cloud altitude and wind shear combine to create dangerous meteorological conditions for jet engines. | — | dataset | aviation airspace closure meteorologica… | 1x of 3 | |
meteorological factors determining volcanic ash cloud dispersion speed IMPLICIT | Google ↗ AI Mode ↗ | Determine how weather variables like humidity and jet stream velocity affect ash cloud longevity. | — | web_article | aviation airspace closure meteorologica… | 1x of 3 | |
commercial flight insurance coverage for volcanic ash disruption PERSONALIZED | Google ↗ AI Mode ↗ | Check typical coverage limits and criteria for travel or commercial aviation policies during eruptions. | — | buyers_guide | business interruption insurance policies | 1x of 3 | |
insurance proof of loss requirements for airspace closure claims IMPLICIT | Google ↗ AI Mode ↗ | Find out what documentation and official meteorological reports must be submitted to secure an insurance payout. | — | checklist | business interruption insurance policies | 1x of 3 | |
do travel insurance policies cover airspace closure due to volcano REFORMULATION | Google ↗ AI Mode ↗ | Check consumer-level insurance applicability for volcanic flight groundings. | — | forum/qna | business interruption insurance policies | 1x of 3 | |
historical volcanic eruptions that caused mandatory european airspace closure RELATED | Google ↗ AI Mode ↗ | Review past precedent where volcanic ash weather conditions successfully triggered airspace shutdowns and subsequent claims. | — | web_article | aviation airspace closure meteorologica… | 1x of 3 | |
aviation regulatory bodies responsible for issuing SIGMET for volcanic ash RELATED | Google ↗ AI Mode ↗ | Identify who issues the official weather warnings that initiate the chain reaction toward airspace closure. | — | glossary/definition | aviation airspace closure meteorologica… | 1x of 3 | |
timeline of a volcanic eruption meteorological alert to insurance claim REFORMULATION | Google ↗ AI Mode ↗ | Trace the chronological sequence from weather detection of ash to final payout approval. | — | how_to_steps | business interruption insurance policies | 1x of 3 |
Passes
Does another pass still surface new queries? A flattening curve means the fan-out has stabilised.
| Model | Pass | Target | Generated | Seconds | Tokens (in / out) | Notes |
|---|---|---|---|---|---|---|
| gemini-3.5-flash-lite | 1 | 12 | 12 | — | 917 / 1,451 | |
| gemini-3.5-flash-lite | 2 | 12 | 12 | — | 917 / 1,478 | |
| gemini-3.5-flash-lite | 3 | 12 | 12 | — | 917 / 1,404 |