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Monday, December 19, 2011




VISAKHAPATNAM/HYDERABAD: South coastal Andhra faces the threat of a cyclonic storm hitting the coast in the next 2-3 days what with the well-marked depression over southeast Bay of Bengal concentrating into a deep depression on Monday.

Ports at Krishnapatnam, Nizampatnam and Machilipatnam hoisted the cautionary signal number one, as the deep depression is all set to turn into a cyclonic storm in the next 24 hours. The depression lay centered about 850 km southeast of Chennai and 550 km southwest of Port Blair. Weather officials said the system would move northwestwards and cross north Tamil Nadu-south Andhra coasts between Cuddalore and Nellore in the early hours of December 29.

Under its influence, isolated heavy rainfall is likely to commence over north coastal Tamil Nadu and south coastal Andhra Pradesh from Wednesday morning. "There are chances of the system intensifying into a severe cyclonic storm if conditions favour in another 24 hours," a Met official said.

Squally winds at 45-55 kmph are likely to hit the coast along Tamil Nadu, Puducherry and south coastal Andhra during the period. Officials said the condition of the sea would be rough to very rough and urged fishermen not to venture into the sea.

Meanwhile, mercury has dipped at several places in Vizag in the last two days with Chintapalli and G K Veedhi mandals recording 3 degree Celsius. Lambasingi village in G K Veedhi recorded a low of 0 degree Celsius on Sunday, while several interior villages are reeling under intense cold spell in the last couple of days.

While temperatures in Hyderabad dropped to 12 degree Celsius on Sunday, making Christmas the coldest day of the season so far, Met officials said the cold conditions are not likely to stay for long. On the contrary, mercury levels in Hyderabad are set to shoot up by at least a few degrees over the next two days, they said. "There might be a slight drop of another one degree on Tuesday, but there on the temperatures will only rise," said R V Subba Rao, assistant metrologist, explaining that the rise is due to the cyclonic storm.

He said the storm would also result in an increase in rainfall and dusty winds over Rayalaseema and coastal Andhra. He pointed out that the season this year has relatively been warmer than previous years. "Considering that the minimum temperature last year had dropped to 9.8 degree Celsius on December 21, this temperature is much higher," Rao added. The minimum temperature recorded on Monday was 12 degree Celsius.

--Times of India

पावसाचा अचूक अंदाज >>

आपल्याकडे पावसावर अनेक गणिते अवलंबुन असतात. पिण्याचे पाणी तसेच शेती क्षेत्रातील प्रगतीबरोबर अन्य अनेक बाबींसाठी पावसाचे पाणी गरजेचे ठरते. साहजिकच पावसाच्या अचूक अंदाजाला महत्व प्राप्त झाले आहे. जगातील एकूण पर्जन्यमन समजून नेमेके स्वरूप कळावे याकरिता अमेरिका आणि जपान संयुक्तरीत्या अत्यंत संवेदनक्षम उपग्रह प्रक्षेपित करणार आहेत. जागतिक पर्जन्य चक्राचा वातावरणावर होणारा परिणाम आणि हवामान अंदाज अचूक मिळण्यासाठी हा प्रकल्प राबविला जाणार आहे. जवळपास ६३कोटी ६०लख पौंड इतका प्रचंड खर्च करून पाठविलेला उपग्रह दर तीन तासानी पृथ्वीवर पडणाऱ्या पावसाची नोंद घेऊन ती आकडेवारी शास्त्रज्ञांना पुरवेल. वातावरणातील घडामोडींचा विज्ञानाच्या सहाय्याने विश्लेषण करून या माहितीचा वापर शेतकरी, उद्योजक, व्यापारी यांचेसाठी करता येईल असे या मोहिमेबद्दल सांगताना श्री.ऑर्थर यांनी सांगितले. सदरचा उपग्रह रडार आणि मायक्रोव्हेव रेडिओ मीटर अशा उपकरणांनी सुसज्ज असेल. या मोहिमेकरिता जवळपास ८ उपग्रहांची मदत घेतली जाणार आहे. हे सर्व उपग्रह परस्परांशी जोडले असलेने संपुर्ण जगात केंव्हाही, कोठेही, कितीही पाऊस पडला तर त्याची माहिती एकसंधपणे उपलब्ध होईल. ही एक जागतिक हवामानातील क्रांतीच ठरणार आहे.