Taal Eruption 2020

**111prez** · June 3rd, 2021 12:43 PM

Originally Posted by Yatta

Measuring Volcanic Gases | Volcano World | Oregon State University.

Interesting.

Would you know what method Phivolcs uses for Taal?

**Yatta** · June 3rd, 2021 03:44 PM

Originally Posted by 111prez

Interesting.

Would you know what method Phivolcs uses for Taal?

Direct sampling (can't be done now that its very dangerous to go to the island) and COSPEC/FLYSPEC by car and boat (can't be done with cloud cover like yesterday).

**111prez** · June 4th, 2021 09:12 AM

Taal flatlined for the 4th straight day

And, its the 2nd straight week of 0-single digit numbers.

Still no data on SO2 emissions though.

And, tummy is still rumbling.

**Yatta** · June 4th, 2021 09:23 AM

Originally Posted by 111prez

Taal flatlined for the 4th straight day

And, its the 2nd straight week of 0-single digit numbers.

Still no data on SO2 emissions though.

And, tummy is still rumbling.

Maulap pa rin kahapon. Instrument won't be able to distinguish clouds from the steam.

**dr. d** · June 4th, 2021 09:29 AM

Originally Posted by Yatta

Maulap pa rin kahapon. Instrument won't be able to distinguish clouds from the steam.

so they can do the measurements on nice, sunny days only?
kapag ma-ulap or na-ulan, hindi puede?

**111prez** · June 4th, 2021 09:57 AM

Kumukulo pa rin ang kaldera

**Yatta** · June 4th, 2021 10:54 AM

Originally Posted by dr. d

so they can do the measurements on nice, sunny days only?
kapag ma-ulap or na-ulan, hindi puede?

Still possible, but not as accurate. Calibration would be difficult. The instrument relies on the principle of absorption of UV light w/c is proportional to the amount of SO2. Thicker "steam", more absorption. As shown in the above diagram, the instrument will have a hard time to distinguish w/c are clouds and w/c is the steam coming from the volcano. It would give a reading but anomalously and unacceptably high.