Showing posts with label western ghats. Show all posts
Showing posts with label western ghats. Show all posts

Monday, 9 June 2014

Finally, the windmill installation starts today

After many months of anticipation, finally the work has started on installation of wind pump.  Yesterday night two ABS engineers have landed in train travelling around 1800 kms for the installation.  The fun is they know only Hindi and our friend Subbu knows only Tamil.  I had to translate for few calls right from guiding them through my mobile to a hotel, to reach the nearby town from where Subbu would pick them up.  I was astonished to find during one of the conference calls that Subbu is speaking Tamilish Hindi, good enough for both to understand.

The fun started with Subbu reaching  a town called Valliyoor today morning promptly at 7 AM to receive them, unaware that the engineers have alighted in Tirunelveli, both being around 40 Kms apart.  later both were made to travel to Nanguneri and shook hands. The city folks from Mumbai thought that places that I mentioned are at commutable distance by auto rickshaws.  They are unaware that in rural places, the distances are very large and people travel great distances every day easily through public buses.  With so much of oxygen around, you donot get tired in country side even if you travel for 100 kilometers. Rather you get much refreshed.

Today they have completed assembling a portion of tower, I learned. The boring well is now covered with hand pump. That need to be cut and removed.  Since there is no electricity, we need to call a gas welder to cut the cylinder, which is fixed in concrete. That work will be done tomorrow.  The work stopped at evening 6.30 when light fall.  The engineers will now be put in hotel at Valliyoor so that tomorrow they can be picked up again.

 They have to come to Nanguneri for taking lunch.  How do they travel?    Subbu told, sir that is easy.  We go thribles in my bike.  Why waste money sir on auto.  They are very comfortable on my bike.

Subbu mentioned he will make them stay in Farm itself. No bed, no pillow, no cover.  I asked him to put them in a hotel in Valliyoor so they get some rest. One must be used to staying in open farm without any facilities. Villagers would have grown a taste for it watching the open clear dark sky with studded stars.  You can see every constellation of stars that you every have heard off. You can even see The Milky way and Andromeda Nebula M31 if your eyes are keen.  Sometimes a passing jet will blink.  A satellite can be seen. International space station can definitely be seen as a Dot.  There is no city light anywhere near my farm. Ideal place for practicing astronomy.  (not the colourful morphed photos of Hubble telescope, but a real visual observation).

Of late Subbu likes to stay back in my Farm.  He likes the fresh air which is matchless.  When I go to my native place, I used to think if only I can package this air and take with me. So much refreshing the breeze will be which is coming from western ghats reserve forest.

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Friday, 25 April 2014

10 years of alternating rain, drought and shifting Seasons

Hi Subbu, I heard there is continuous downpour in Nanguneri (near by town which is 10 Km west of my farm). Is there rain in our farm ?.  No sir, nothing. The climate is as dry as it was for the past many days. There is no sign of any clouds.
Not my farm, but nearby

This is very natural and is expected in my farm. From my farm you can see the beautiful western Ghats silhouetted against the horizon.  You can also see wandering thunder clouds pouring rains over distant village. You can even smell rain. That is about it. The farm is neither near any mountain, nor near the sea. There are no water bodies or forest nearby. It is in rain shadow region.  No wonder it is a DRY LAND.  That is the challenge.

While thinking of this and browsing the internet, I came across some very useful first hand information in the net. Further analyzing the data I could prepare some useful notes.   Generally the rain, reservoir and meteorological data are not made available to public.  They are maintained in manual registers.   All measurements are monthly average rainfall in mm. i.e., amount of rain falls in a month.

I have selected three towns which are to the East, West and South of my farm land for the presentation here from the available data.  Of these the south town Radhapuram may experience more rain due to its natural position.  It lies ahead of a gap in western Ghats mountain range.  The other two towns mimic climate that of the farm.   
Tamilnadu  Anuual Rainfall.
The below graph must give an indication of what I can expect for myself.  Reference table above shows Tamilnadu State average rainfall.  From this we come to know that the state gets 81 mm rainfall every month on an average.  That should be our benchmark.

Comparing this with monthly rainfall average for over 11 years between 2000 to 2010 in three towns around my farm, clearly shows I can expect a decent rain of above 80mm/month only for 4 months.  

Strictly March, April and then October and November. This year there is no rains till now. The situation will become worse and will pickup only in September.  It is going to be a challenge to store the rain water for entire year in such narrow window.  the rain-fed crops can be sown only for one quarter which is the last quarter. I also hear that there is a shift of this rainy season to the right due to global warming. The second quarter rain is not guaranteed.

How does the climate change over a period of time ? 

A yearwise trend clearly shows that the volume of rainfall / month varies every alternate years.  There is a rhythm. One year dry and one year wet. If one year is 80mm/month the other year is only 40mm/month. There is also some flooding observed in 2008 and has upset the cycle, but is catching up.

This means that if this year is drought, we can recover next year and can expect dryness subsequent year. But this is a gamble. What if the subsequent year also happens to be dry ?

We hear that the el-Nino prediction for this year is not so great. Past year had been dry. Therefore I am hoping this year will be wet except for el-Nino factor. We expect the current year also will be dry only if we read the early warnings like the one below.

"Since 1951, the country has had 13 drought years (during SW monsoon), of which 10 have been during El Nino. The current patterns of El Nino are similar to the year 1968. "That year, there was a deficit of 11%. But this year, given local factors, we predict a deficit of 6% across the country," said Palawat"

Happy Farming.

***

Credits:
State Ground and Surface Water resources data centre
http://www.igu.in/17-4/2paper.pdf
http://timesofindia.indiatimes.com/city/chennai/El-Nio-may-hit-cauvery-delta-with-drought/articleshow/33840746.cms