Raghu Murtugudde

  • Mumbai, July 5 (India Science Wire): On July 2, the Maharashtra government decided to close private and public schools in Mumbai based on IMD’s rainfall forecast which predicted "intermittent rain in city and suburbs, with heavy to very heavy rainfall at a few places for the next 24 hours." T...
    priyadposted 1 year 1 month agoread more
  • It has been reported that extreme rainfall events are increasing over India and widespread floods have increased threefold over the last several decades from an average of two events per year to six events per year. But the link between extreme rainfall events and rising incidence of floods remains ...
    arathiposted 1 year 6 months agoread more
  • Every time an extreme weather event like the Kerala floods occurs, there is a great demand for information on its causes. The question uppermost in public discourse is if such events can be attributed to climate change and global warming. Detection and attribution are the foundations of climate cha...
    arathiposted 1 year 10 months agoread more
  • A new study has pointed out that increased irrigation efficiency does not translate to more water availability for other uses at the watershed level. The subsidies for increasing irrigation efficiency are intended to increase crop production as well as more return flow from irrigated areas that can ...
    arathiposted 1 year 11 months agoread more
  • The mountain range that runs along the west coast of peninsular India from Tamil Nadu through Kerala, Karnataka, and Goa to Maharashtra is known as the Western Ghats and is very well known for its majestic beauty. It is also among the top eight biodiversity hotspots in the world. The Western Ghats h...
    arathiposted 2 years 3 months agoread more
  • As the parched Indian subcontinent eagerly awaits the monsoon, all indications are that it will be a normal monsoon, especially since no El Niño is in the offing for 2018.  The long-term monsoon trend has been getting much attention recently. The seasonal total rainfall which has decreased by...
    arathiposted 2 years 3 months agoread more
  • In a few weeks from now, the seasonal forecast for the Indian summer monsoon will be announced. Among various parameters that determine the fate of the monsoon is the sea surface temperature, more specifically, the contrast between land and sea temperatures. But what are the parameters that determin...
    arathiposted 2 years 4 months agoread more
  • In a few weeks from now, monsoon forecasts will begin. These forecasts are based on calculations made by computer modelling. There have been amazing advances in the modelling of weather and climate. These include the monsoons, El Niño’s, cyclones, the Inter-Tropical Convergence Zone (ITCZ), winds...
    arathiposted 2 years 4 months agoread more
  • It rains about 900 mm during a normal monsoon year over India and if we assume that about 80 percent of India is covered by this rain, then the estimated volume of water is well over 200 lakh crore buckets. It comes to two lakh buckets per person. Where does all this water come from?  Dr Amey ...
    arathiposted 2 years 7 months agoread more
Greater precision in forecast of extreme events is critical.

Mumbai, July 5 (India Science Wire): On July 2, the Maharashtra government decided to close private and public schools in Mumbai based on IMD’s rainfall forecast which predicted "intermittent rain in city and suburbs, with heavy to very heavy rainfall at a few places for the next 24 hours." The 24-hour period from 8:30 am of July 1 to July 2 saw a total of 375 mm of rain and it was obviously ominous to expect that more heavy rain events would follow.

Topics

Sub-Categories

Regions

Many hydraulic factors such as physiography, drainage, catchment size and vegetation cover are critical for peak flood conditions.

It has been reported that extreme rainfall events are increasing over India and widespread floods have increased threefold over the last several decades from an average of two events per year to six events per year. But the link between extreme rainfall events and rising incidence of floods remains tenuous.  

Topics

Sub-Categories

Regions

Detection and attribution in case of extreme weather events play an important role in understanding climate change better.

Every time an extreme weather event like the Kerala floods occurs, there is a great demand for information on its causes. The question uppermost in public discourse is if such events can be attributed to climate change and global warming.

Topics

Sub-Categories

Regions

Subsidies given for irrigation efficiency may have a negative impact on water use.

A new study has pointed out that increased irrigation efficiency does not translate to more water availability for other uses at the watershed level. The subsidies for increasing irrigation efficiency are intended to increase crop production as well as more return flow from irrigated areas that can be allocated to urban, domestic and industrial uses. But this does not seem to be happening.

Attachments

Topics

Sub-Categories

Regions

A new study points out that the evapotranspiration from the vegetation over the Western Ghats accounts for one-quarter of the rainfall over peninsular India.

The mountain range that runs along the west coast of peninsular India from Tamil Nadu through Kerala, Karnataka, and Goa to Maharashtra is known as the Western Ghats and is very well known for its majestic beauty. It is also among the top eight biodiversity hotspots in the world. The Western Ghats host over 400 species and seven distinct vegetation types. 

Attachments

Topics

Sub-Categories

Regions

Even if the total rainfall recovers, there is no indication that heat waves, droughts, extreme events and widespread floods are about to go away.

As the parched Indian subcontinent eagerly awaits the monsoon, all indications are that it will be a normal monsoon, especially since no El Niño is in the offing for 2018. 

Topics

Sub-Categories

Regions

Phytoplankton are often early indicators of change in temperatures and can offer potential to extend the lead time of climate predictions.

In a few weeks from now, the seasonal forecast for the Indian summer monsoon will be announced. Among various parameters that determine the fate of the monsoon is the sea surface temperature, more specifically, the contrast between land and sea temperatures. But what are the parameters that determine sea surface temperatures?

Attachments

Topics

Sub-Categories

Regions

Though there have been amazing advances in the modelling of weather and climate, no model is perfect.

In a few weeks from now, monsoon forecasts will begin. These forecasts are based on calculations made by computer modelling. There have been amazing advances in the modelling of weather and climate. These include the monsoons, El Niño’s, cyclones, the Inter-Tropical Convergence Zone (ITCZ), winds, currents, and so on. Just as even a new car is not perfect, these models are not perfect. When people read different descriptions of the Indian monsoon based on models, it may feel like the allegory of blind men describing the elephant.

Topics

Sub-Categories

Regions

The annual monsoon provides over 200 lakh crore buckets of water. Where does all this water come from?

It rains about 900 mm during a normal monsoon year over India and if we assume that about 80 percent of India is covered by this rain, then the estimated volume of water is well over 200 lakh crore buckets. It comes to two lakh buckets per person. Where does all this water come from? 

Topics

Sub-Categories

Regions

Subscribe to RSS - Raghu Murtugudde