Project Hessdalen logo
Holtålen municipality
Guided tour
Where is
3D map
Observations this year
Observations previous years
Last news
Report from 1984
The project in TV
   ... radio/internet
   ... newspaper
   ... journals
Live TV


Pictures 2024
Pictures 2023
Pictures 2022
Pictures 2021
Pictures 2020
Pictures 2019
Pictures 2018
Pictures 2017
Pictures 2016
Pictures 2015
Pictures 2014
Pictures 2013
Pictures 2011
Pictures 2003
Pictures 2002
Pictures 2001
Pictures 2000
Pictures 1999
Pictures 1998


Technical description
Where is

Student groups
Student reports
Become a sponsor
Hits on this web
Back to main
    \n"; } sub print_html_table { print "
Project Hessdalen - Last alarm pictures

Here are the last alarm pictures from the field station. This page is updated whenever a new alarm picture comes from the station. Most of these pictures are false alarms, which means that a solution is found at once. Those pictures that need more analysis before a solution might be found are defined as interesting alarm pictures. This year's interesting alarm pictures are on page Pictures 2001. Comments about this year's interesting alarm pictures are on this page.

The computer does not analyze the whole picture from the camera. The red area in the mask picture is not being analyzed.

The Hessdalen AMS was stopped on the 7.November 2003 because of failure. It will be installed after the failure is repaired.

#!/usr/bin/perl # # Copyright (c) 1997 Martin Ranang Thorsen $cells = 120; $format = '.jpg'; $metadir = "/alarmdir"; $html_dir = "/ams".$metadir; $alarm_dir = "/local/hessdalen/html".$html_dir; sub print_http_header { print "Content-type: text/html\n\n"; } sub print_html_link { my $file = @_[0]; my $year, $month, $day, $hour, $minute, $second; ($year, $month, $day, $hour, $minute, $second) = $file =~ /^alarm-(\d{4})(\d{2})(\d{2})(\d{2})(\d{2})(\d{2})$format$/; print "

\n"; print ""; print "Alarm $hour:$minute:$second $day.$month.$year"; print "\n"; print "
\n\n"; my $i, $file, @files; opendir(DIR, "$alarm_dir") || die "Error: opening $alarm_dir.\n"; @files = reverse(sort(readdir(DIR))); $i = 0; foreach $file (@files) { if(($file =~ /^alarm-\d{14}$\$format/) && ($i < $cells)) { if(!($i % 4) && $i) { print "\n\n"; } print_html_link($file); $i++; } } closedir(DIR); print "
\n"; } print_http_header(); print_html_table(); exit(0)

The alarmpicture has a number that tells the time: The four first numbers are the year. Then you will find the month, the date, the hour, the minute and the second. Picture number: 20000101172036 will be: 2000 is the year, 01 is the month, 01 is the date, 17 is the hour, 20 is the minute and 36 is the second. The picture was taken the 01.January 2000, at 17:20:36. The clock in the picture shows summertime, which is correct only half of the year. The correct clock is the file-number.

It is the yellow (or the red) part in the picture which is the interesting light. It is a black-and-white camera in use. The computer program ( the software) put a color (yellow or red) on the part which made the software react.

Go to picture version of this page.

Copyright ©2000 Project Hessdalen. Webmaster : Erling Strand.
All comments or questions about this web shall be send to Webmaster
Last update 27 December 2003 10:57:39.