There is a website called http://www.fallingrain.com/world/index.html
and Karnataka http://www.fallingrain.com/world/IN/19/ http://www.fallingrain.com/world/IN/19/ for Karnataka, which gives the temp and percipitation details, chk, wether they have historical data Reg SABA On Sat, May 10, 2014 at 5:25 PM, Rajesh Shah <sha...@gmail.com> wrote: > > Hi, > > The article below screams out for a data visual! > > It would be great to see trends of daily highs/lows over the past couple > of decades in B'lore. Number of days over 35, ... > > Also, as far as i know, Bangalore measures temperature in a cool place in > IISc rather than a spot on MG Road (which is what people experience). Is > that true? > > Can someone please help with getting Bangalore temperature data history? > I have tried searching and the IMD website but found some averages > (monthly), but not enough detail. > > Thanks in advance, > Rajesh > > -------- > > > > http://www.bangaloremirror.com/bangalore/others/Activists-name-and-shame-heat-wave-suspects/articleshow/34543065.cms > > > > > > Activists name and shame heat wave suspects > Bangalore Mirror Bureau | May 3, 2014, 02.00 AM IST > [image: Activists name and shame heat wave suspects] > > > > > > > > > > > > > > > > Soaring temperature has triggered extensive debate among Bangaloreans in > the past few months. Despite the claim by weathermen that the mercury > levels are well within the summer normal range, people are experiencing > intense heat across the city. Even as many wonder what could have made > Bangalore — a city known for its salubrious climate — resemble a boiling > cauldron, environmentalists point fingers at five major culprits.* Nidhi > Yalburgi* take a closer look > > > *1. WHOPPING REDUCTION **IN TREE COVER* > > As per estimates by scientists at the Indian Institute of Science (IISc), > loss of green cover has opened up the city to direct sunlight. Experts are > of the view that in each of the 198 wards of BBMP, there should have been a > minimum of 20 per cent green cover. But currently, it ranges between 2-10 > per cent, adding to the rise in temperature. A decade ago, the city had 111 > villages within its limits, with lots of lung space dotted with large > trees, and natural depressions filled with water. But rapid urbanisation > has converted all these into a concrete jungle. > > *2. Disappearance of tanks/lakes* > > Bangalore was once known to have around 940 lakes, but has around 200 > lakes on paper today, though many of them are nothing more than sewage > pools. Also, around 50-60 per cent of the city's economic activity was > earlier centred around agriculture and horticulture. Experts believe that > these water bodies, to a certain extent, controlled temperature levels by > adding moisture into the atmosphere. Today, many of them are just filled > with sewage and absorb more and more heat, releasing greenhouse gases. > > *3. Glass towers which create heat islands* > > Innumerable glass-fronted buildings across Bangalore are also contributing > to the high temperature during summer. Such buildings are a good fit in the > city landscapes of countries in the cold West. But when copied to an Indian > urban setting, they contribute majorly to the soaring temperature. A study > by green activists has revealed that these glass buildings radiate heat, > creating heat islands across the city, which then converge to raise surface > temperature by 2 to 3 degrees Celsius more than the average. > > *4. Metallic toys burn more than rubber* > > As automobile and vehicle tyres burn rubber, there's collateral damage to > the environment too. As per the study, vehicles, along with buildings, > contribute to a 12 per cent increase in the heat level per day. Heat from > vehicle combustion, as well as the mixing of sun rays with vehicle > emissions, adds to surface temperature. With hardly any green cover to > absorb this radiation, the heat gets trapped in the atmosphere and is > circulated uniformly along the surface. > > *5. Lack of open spaces and waste-burning * > > Experts are of the view that open spaces within cities would moderate the > climate. Bangalore has already lost several of its lung spaces either to > land sharks or illegal settlements. About 40,000 hectares of area around > Bangalore is under construction, though a third of it should have been set > aside to provide green cover. Additionally, about 10-15 per cent of > municipal waste is being burnt everyday, releasing dangerous hydrocarbons > into the environment. > > > > The actual victims of this mindless urbanisation are the old citizens of > Bangalore as they are unable to cope up with climatic changes. Large-scale > radiation by buildings in the absence of trees has increased the levels of > ground level or bad ozone, and hundreds of reports in this regard have been > quietly sidelined. What we need is political will to tackle these > activities. > *A N Yallappa Reddy, IFS (Rtd), ecologist * > > Urban planners need to focus more on increasing green cover at the ward > level. Green cover at every ward is important as it would balance the heat > radiation from buildings and other structures. But unfortunately, > afforestation in recent times has come down drastically. Instead, cutting > of trees has become the order of the day resulting in gradual increase of > temperature. > *Harish Bhat, researcher and biodiversity expert* > > Developers and builders are contributors to the agonising rise in > temperature. The erstwhile string of lakes would have cooled the heat wave. > But today, encroachment and draining of lakes has almost doubled the > temperature levels. The situation is such that even rain water is > evaporated in a matter of few hours, owing to intense heat at the ground > level. > *Suresh Heblikar, Environmentalist* > > -- > For more details about this list > http://datameet.org/discussions/ > --- > You received this message because you are subscribed to the Google Groups > "datameet" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to datameet+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- For more details about this list http://datameet.org/discussions/ --- You received this message because you are subscribed to the Google Groups "datameet" group. To unsubscribe from this group and stop receiving emails from it, send an email to datameet+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
