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Author Topic: Volcano eruption in Tonga  (Read 1749 times)

WLJ

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Re: Volcano eruption in Tonga
« Reply #25 on: January 18, 2022, 07:29:51 PM »
Considering how communications have been mostly cut off I keep thinking Starlink
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RoadKingLarry

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Re: Volcano eruption in Tonga
« Reply #26 on: January 18, 2022, 07:58:03 PM »
Saw a report earlier today that the undersea cable that carries comms has been severed in at least 2 spots and will take at least 2 weeks to repair.
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Fly320s

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Re: Volcano eruption in Tonga
« Reply #27 on: January 18, 2022, 09:39:19 PM »
Quote from: WLJ on January 18, 2022, 07:29:51 PM
Considering how communications have been mostly cut off I keep thinking Starlink

I wonder if SpaceX, et al, can quickly launch a satellite package to remote locations affected by natural disasters.  Starlink does not have global coverage yet, but can they selectively turn on/off certain areas during natural disasters?
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cordex

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Re: Volcano eruption in Tonga
« Reply #28 on: January 19, 2022, 08:47:23 AM »
Quote from: Fly320s on January 18, 2022, 09:39:19 PM
I wonder if SpaceX, et al, can quickly launch a satellite package to remote locations affected by natural disasters.  Starlink does not have global coverage yet, but can they selectively turn on/off certain areas during natural disasters?
Starlink has pretty good global satellite coverage, but they don't have global reach on their ground stations.  The initial constellation required line of sight to both the gateway and the home-based transceiver. 

I believe that since last fall the new satellites getting launched are equipped with lasers for inter-satellite optical relay, which should allow for relaying to distant gateways.  Once the new satellites are ubiquitous enough then SpaceX should be able to turn on coverage anywhere, although I imagine the latency would increase if it had to hop a dozen satellites to get to a ground station.
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Pb

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Re: Volcano eruption in Tonga
« Reply #29 on: January 19, 2022, 11:07:12 AM »
This sounds like a job for Ham radio...
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230RN

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Re: Volcano eruption in Tonga
« Reply #30 on: January 20, 2022, 09:01:31 AM »
Fly320s:

"One image I saw had a scale attached that showed the dust cloud to be about 300 miles wide"

Was that a dust cloud, or just a water cloud like you get with an underwater explosion? 

https://youtu.be/zMfkO5iUkb4 (1:11)

I think one of the main problems now is, as usual, potable water. Boiling salt water does not make it safe.

It still sounds overhyped to me.  What's on page 37 or ten minutes after this lead-in story on TV that they're  trying to downplay? < :sarcasm:

Pb:

"This sounds like a job for Ham radio..."

DE Terry, but I'm not on HF any more.
« Last Edit: January 20, 2022, 09:15:01 AM by 230RN »
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WLJ

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Re: Volcano eruption in Tonga
« Reply #31 on: May 17, 2022, 07:50:11 PM »
Update
Mostly info on the eruptions effects on the atmosphere

Tonga Volcano Updates: Interesting And Somewhat Shocking Discoveries
https://www.youtube.com/watch?v=tRSyW1TxAw4
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charby

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Re: Volcano eruption in Tonga
« Reply #32 on: May 17, 2022, 10:33:41 PM »
Quote from: Pb on January 19, 2022, 11:07:12 AM
This sounds like a job for Ham radio...

FT8 protocol
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