Feature Article

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Impact of Ganges–Brahmaputra interannual discharge variations on Bay of Bengal salinity and temperature during 1992–1999 period

This study investigates the impact of monthly Ganges–Brahmaputra river discharge variations on Bay of Bengal salinity and temperature during the period 1992–1999. The Ganges–Brahmaputra river discharge is characterized by a well-defined seasonal cycle with strong interannual variations. The highest/lowest yearly peak discharge occurs in summer 1998/summer 1992, with 1998 value amounting to twice that of 1992. This river discharge is then used to force an ocean general circulation model.

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Publication Date: 
01/10/2011
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Long-term variations in outgoing long-wave radiation (OLR), convective available potential energy (CAPE) and temperature in the tropopause region over India

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807-823
Publication Date: 
01/10/2011

Relationship of outgoing long-wave radiation (OLR) with convective available potential energy (CAPE) and temperature at the 100-hPa pressure level is examined using daily radiosonde data for a period 1980–2006 over Delhi (28.3˚N, 77.1˚E) and Kolkata (22.3˚N, 88.2˚E), and during 1989–2005 over Cochin (10˚N, 77˚E) and Trivandrum (8.5˚N, 77.0˚E), India. Correlation coefficient (Rxy) between monthly OLR and CAPE shows a significant (∼−0.45) anti-correlation at Delhi and Kolkata suggesting low OLR associated with high convective activity during summer (seasonal variation).

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Multi-model ensemble schemes for predicting northeast monsoon rainfall over peninsular India

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795-805
Publication Date: 
01/10/2011

The northeast (NE) monsoon season (October, November and December) is the major period of rainfall activity over south peninsular India. This study is mainly focused on the prediction of northeast monsoon rainfall using lead-1 products (forecasts for the season issued in beginning of September) of seven general circulation models (GCMs). An examination of the performances of these GCMs during hindcast runs (1982–2008) indicates that these models are not able to simulate the observed interannual variability of rainfall.

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Anomalous behaviour of the Indian summer monsoon 2009

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783-794
Publication Date: 
01/10/2011

The Indian subcontinent witnessed a severe monsoon drought in the year 2009. India as a whole received 77% of its long period average during summer monsoon season (1 June to 30 September) of 2009, which is the third highest deficient all India monsoon season rainfall year during the period 1901–2009. Therefore, an attempt is made in this paper to study the characteristic features of summer monsoon rainfall of 2009 over the country and to investigate some of the possible causes behind the anomalous behaviour of the monsoon.

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Green takeoff

Lufthansa is the world's first airlines to use biofuel on scheduled flights. In the long term, the aviation industry will not achieve its climate goals without biofuels.

78-81
Publication Date: 
01/10/2011
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Overshadowed by photovoltaics

Because the price of solar panels is plummeting, large ground-mounted photovoltaic plants are squeezing solar thermal power plants out of the market. Is the future of concentrated solar power already over?

70-73
Publication Date: 
01/10/2011
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Wind theft is on the rise

Wind power plants are most productive when nothing blocks their access to the wind. But turbines often take wind away from each other. Repowering and the allocation of new priority sites are aggravating the problems the most.

66-68
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01/10/2011
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Short-lived enthusiasm for clean energy

2011 has been a hard year for clean energy fund managers so far, and there are few signs of improvement any time soon. Investors are shunning the sector in the face of industry-specific issues such as overcapacity and shifts in demand, and they are mindful too of the steadily deteriorating macro-economic outlook.

42-45
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01/10/2011
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Wales is warming up

Biomass Wales is starting wood-pellet production. Thanks to the UK introducing the world's first feed-in tariff for renewable heat, the company can look forward to good sales.

28-31
Publication Date: 
01/10/2011
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Halfway there

Japan has agreed a feed-in law, but important regulations have yet to be decided. Nonetheless, the industry is expecting a strong upswing.

16-17
Publication Date: 
01/10/2011
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