Date: Wed, 5 Jun 2002 17:08:29
-0700 (PDT)
From:
P Flatau <pflatau@yahoo.com>
To:
tropical-storms@tstorms.org
Cc:
pflatau@ucsd.edu, mflatau@ucsd.edu
Subject:
[Tropical-storms] this year Indian monsoon onset
You may recall John McBride's
and J. Chan emails about 2 pairs of twin cyclones in IO and MJO moving
towards
westPac around May 10.
There was discussion about South China Monsoon onset at that time.
Here is a
fascinating follow up on
this year's early westerly bursts and related Indian monsoon onset controversy
including politics, social
drama, and science.
In mid May of 2002 Associated
Press and other news organizations reported that "The death from a heat
wave that has gripped southeastern
India rose to 1,030 Wednesday as reports trickled in from remote rural
villages. Most of the dead
were older people unable to bear temperatures that reached 122 degrees.
Officials
were still adding up the
toll in Andhra Pradesh state, but it was already the highest one-week death
count on
record for any Indian heat
wave."
Going back a bit, in November
2001 we (Flatau, M., Flatau, P., and Rudnick) published a paper on the
dynamics of double monsoon
onsets (JOURNAL OF CLIMATE, 2001, V14(N21):4130-4146) which predicted that
early
TC twins in IO and MJO branch
propagating towards westPac, combined with high SST in the BoB may
lead
to the delay of the monsoon
onset in India (and heat wave in between). Dr P. V. Joseph
published relevant
paper (Journal of Climate,
V7(N1):81-105) in 1994.
On May 25 Dr P. V. Joseph,
on the basis of his research, predicted that "temporal evolution of deep
convection as observed by
satellite over the north Indian and northwest Pacific oceans so far in
May 2002
indicate possibility for
a two week delay in monsoon onset over India (Kerala)."
After that Flataus were contacted
by Mr Gopal N. Raj, the science correspondent who wrote a story for "The
Hindu" about possible Indian
monsoon delay in 2002 which was published on May 28.
However, on the night of
28 May Cochin and Trivandrum had heavy thundershowers and India Meteorological
Department (IMD) declared
the onset of monsoon over south Kerala on 29 May 2002 and extended it over
north
Kerala on 30 May.
One may think that this is
another story about missed
forecast!
"On 30 May I (Joseph) sent
an e-mail to the Director General IMD that as an experienced tropical
meteorologist (forecaster,
researcher and teacher), I totally disagree with the IMD declaration of
monsoon
onset and suggested that
he refers to the decades of synoptic experience of Indian meteorologists
summarized by Y.P.Rao in
his classic book on monsoon (1976) pages 45 and 49, para 3.19." - commented
Dr
Joseph in his second email.
Maria Flatau supported Dr Joseph forecast and said "I really think
dr Joseph
was justified in issuing
his forecast." - in her reply to Mr Raj.
And, to crown this all, on Wednesday 5 Jun 2002 we got the following email:
"Dr. Joseph and you (Dr Flatau)
seem to be turning out right about the delay in monsoon onset. I (Mr Raj)
have a feeling that the
India Meteorology Department got provoked into declaring the onset on monsoon
onset
on May 29 as a result of
Joseph publicly declaring that it would be delayed. In India, even a rumour
of
the monsoon being affected
can have an immediate impact on the grain markets. Just the thought of
that
happening scares the government."
Maria Flatau
NRL Monterey