-time and
detects signal characteristics similar to previously observed eruptions using a three-fold
detection procedure based on: 1) an amplitude threshold; 2) the signal-to-noise ratio; and 3) an
emergent ramp-like shape. Data from six Icelandic eruptions was used to assess and tune the
module, which can provide 10–15 minutes of warning for Hekla up to over two hours of
warning for some other
/media/vedurstofan-utgafa-2021/VI_2021_008.pdf
Assessment Re-
port (AR4).
Topic 1 summarises observed changes in climate and their ef-
fects on natural and human systems, regardless of their causes, while
Topic 2 assesses the causes of the observed changes. Topic 3 pre-
sents projections of future climate change and related impacts un-
der different scenarios.
Topic 4 discusses adaptation and mitigation options over the
next few decades
/media/loftslag/IPPC-2007-ar4_syr.pdf