Ozone and UV bulletin
The stratosphere ozone layer is slowly recovering and the recovery will be complete in most parts of the atmosphere in the coming decades, according to the latest bulletin by the World Meteorological Organization
Atmosphere And Ozone Layer
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N2O5 oxidizes chloride to Cl2 in acidic atmospheric aerosol
Molecular chlorine (Cl2) is an important yet poorly understood trace constituent of the lower atmosphere. Although a number of mechanisms have been proposed for the conversion of particle-bound chloride (Cl-) to gas-phase Cl2, the detailed processes involved remain uncertain.
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Annual and seasonal variations in tropospheric ozone concentrations around Varanasi
This study examines the annual, seasonal and diurnal variations in the ambient concentrations of ozone at a suburban site of Varanasi, India, during 2002-2006. Prominent seasonal variations in ozone concentrations were recorded. Ozone concentrations were higher during the warmer months.
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Cloud seeding put off by two days in Anantapur
Anantapur, July 27: The cloud seeding experiment to be conducted from Anantapur was postponed again by two days. The cloud seeding, which was to be launched on July 24 was initially postponed to July 27 as Agni Aviation Agency, which has entered into an agreement with the state government on conducting the experiment, failed to set up radar station.
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Subtropical to boreal convergence of tree-leaf temperatures
The ratio of stable oxygen isotopes in tree-ring cellulose was first used to reconstruct temperatures during tree growth, and a seminal study showed a strong correlation between oxygen isotopes of woody tissue and mean annual temperature.
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Forest air conditioning
During the growing season, with photosynthesis at its peak, leaf temperatures remain constant over a wide latitudinal range. This is a finding that overturns a common assumption and has various ramifications.
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Patil to meet PM on cloud seeding
DH News Service, Hubli: Former minister and senior Congress leader H K Patil will soon meet Primary Minister Manmohan Singh and Agriculture Minister Sharad Pawar and appeal them to take up cloud seeding in different parts of the country to save farmers from continuous droughts. Speaking to media persons here on Monday, Mr Patil said there was an urgent need for exploring the modern technology to bail out farmers, especially living in drought-prone areas, who were suffering due to lack of rains.
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Cloud seeding at Raiwada
Visakhapatnam July 17: The district administration is yet to take up the cloud seeding project for the region though it has been cleared by the state government recently. Cloud seeding would be carried out in Raiwada region as per the government orders. In its order the state asked the collector to consult Prof. T. Sivaji Rao, director of Environmental studies, and his associates who had earlier carried cloud seeding successfully in the district.
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A unifying framework for dinitrogen fixation in the terrestrial biosphere
Dinitrogen (N2) fixation is widely recognized as an important process in controlling ecosystem responses to global environmental change, both today and in the past; however, significant discrepancies exist between theory and observations of patterns of N2 fixation across major sectors of the land biosphere.
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Cloud seeding in 10 days
Anantapur, July 6: The agriculture minister, Mr N. Raghuveera Reddy, said that cloud seeding would be taken up in another 10 days due to lack of rains in Anantapur district. Speaking to newsmen here on Sunday, he said tenders were called to conduct cloud seeding for the next five years. He said that a government committee would examine the tenders and finalise them within two days. The minister said that steps would be taken to conduct cloud seeding on a war-footing.
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The Montreal Protocol as a tool to regulate the ozone depletion
The Montreal Protocol with its subsequent amendments and adjustments has been providing a global regulatory framework for the phase out of ozone depleting substances. Till date, CFCs, CTC, HBFCs, methyl chloroform and halons have been already phased out completely by the developed countries and a number of other ODSs are scheduled to follow.