11-06-2000, 05:27 PM
<A HREF="mailto:kg5qd@earthlink.net">
Dale Huguley</A> reports via APRS mailing list...
"Popo" Volcano near Mexico City is acting up and may pose a threat the
the 20 million or so people that live in the Valley of Mexico. I am now parsing Volcanic Ash Advisories and will plot the location of the offending volcano...
The closest icon I could find is the "smoke" icon. Plotting the
trajectory in APRS presents an interesting problem- as a vector it would cause the volcano to move with dead reckoning turned on (!). As a weather object it would show 180 out of phase- wind is shown by where it is coming from- ash is going somewhere.
There is a great link at : <A HREF="
http://www.cenapred.unam.mx/popo/UltimaImagenVolcan2.html">
www.cenapred.unam.mx</A>
live pictures of Popo during daylight (really nice sunsets!)
Following is an Ash Advisory:
FVXX21 KWBC 020652
VOLCANIC ASH ADVISORY
ISSUED 0700 UTC 02 NOV 2000 BY THE WASHINGTON VAAC
POPOCATEPETL 00-102 MEXICO 1901N 9837W
BACKGROUND: POPOCATEPETL MEXICO (1401-09)
SUMMIT HEIGHT 17930 FT (5465 M)
SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL
IMAGERY. MEXICO CITY MWO. CENAPRED REPORT.
ERUPTION DETAILS: SERIES OF ERUPTIONS BEGINNING APPROXIMATELY
01/2315 UTC THROUGH 02/0006 UTC
DETAILS OF ASH CLOUD: ASH FROM THE PREVIOUS EMISSIONS WAS
NOT DETECTED ON SATELLITE IMAGERY THROUGH 02/0615 UTC AND HAS
DISSIPATED. THE MEXICO CITY MWO RELAYED THAT CENAPRED HAD
REPORTED THAT THE VOLCANO HAS HAD NO ACTIVITY SINCE 02/0006
UTC.
TRAJECTORY: N/A
OUTLOOK: SEE SIGMETS.
THIS WILL BE THE LAST ADVISORY FOR THIS EVENT.
REAL TIME SATELLITE IMAGERY AND VOLCANIC ASH ADVISORIES OFTEN
ACCOMPANIED BY A MAP DEPICTING ASH LOCATION ARE AVAILABLE AT
INTERNET URL ADDRESS
<A HREF="http://www.ssd.noaa.gov/VAAC/washington.html">
WWW.SSD.NOAA.GOV/VAAC</A>
PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
CLARK
73 de kg5qd Dale
Dale Huguley</A> reports via APRS mailing list...
"Popo" Volcano near Mexico City is acting up and may pose a threat the
the 20 million or so people that live in the Valley of Mexico. I am now parsing Volcanic Ash Advisories and will plot the location of the offending volcano...
The closest icon I could find is the "smoke" icon. Plotting the
trajectory in APRS presents an interesting problem- as a vector it would cause the volcano to move with dead reckoning turned on (!). As a weather object it would show 180 out of phase- wind is shown by where it is coming from- ash is going somewhere.
There is a great link at : <A HREF="
http://www.cenapred.unam.mx/popo/UltimaImagenVolcan2.html">
www.cenapred.unam.mx</A>
live pictures of Popo during daylight (really nice sunsets!)
Following is an Ash Advisory:
FVXX21 KWBC 020652
VOLCANIC ASH ADVISORY
ISSUED 0700 UTC 02 NOV 2000 BY THE WASHINGTON VAAC
POPOCATEPETL 00-102 MEXICO 1901N 9837W
BACKGROUND: POPOCATEPETL MEXICO (1401-09)
SUMMIT HEIGHT 17930 FT (5465 M)
SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL
IMAGERY. MEXICO CITY MWO. CENAPRED REPORT.
ERUPTION DETAILS: SERIES OF ERUPTIONS BEGINNING APPROXIMATELY
01/2315 UTC THROUGH 02/0006 UTC
DETAILS OF ASH CLOUD: ASH FROM THE PREVIOUS EMISSIONS WAS
NOT DETECTED ON SATELLITE IMAGERY THROUGH 02/0615 UTC AND HAS
DISSIPATED. THE MEXICO CITY MWO RELAYED THAT CENAPRED HAD
REPORTED THAT THE VOLCANO HAS HAD NO ACTIVITY SINCE 02/0006
UTC.
TRAJECTORY: N/A
OUTLOOK: SEE SIGMETS.
THIS WILL BE THE LAST ADVISORY FOR THIS EVENT.
REAL TIME SATELLITE IMAGERY AND VOLCANIC ASH ADVISORIES OFTEN
ACCOMPANIED BY A MAP DEPICTING ASH LOCATION ARE AVAILABLE AT
INTERNET URL ADDRESS
<A HREF="http://www.ssd.noaa.gov/VAAC/washington.html">
WWW.SSD.NOAA.GOV/VAAC</A>
PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
CLARK
73 de kg5qd Dale