Atmosphere And Ozone Layer

Order of the National Green Tribunal regarding ozone pollution across urban India, 21/03/2025

Order of the National Green Tribunal in the matter of News Item titled “CSE report finds dangerous increase in ozone pollution across urban India” appearing in Down to Earth dated 06.08.2024. The Principal Bench of the NGT heard the matter on March 21, 2025. In the original application, registered suo …

Cloud seeding? Jet flight may help trigger rain

As Air Cools Behind Propellers Or Over Wings, Water Droplets Freeze & Drop Towards The Earth Washington: Jet aircraft make odd-shaped holes in clouds and cause rain or snow as they climb or descend in the skies under certain atmospheric conditions, according to a new American study. The key ingredient …

Orbital eccentricity

The world is currently experiencing the Ice Age called the Quarternary period. There have been five ice ages since the planet was born. Each of them was characterized by periods of lower temperatures and glacier formation, interspersed with periods of higher temperature. The glacial periods used to occur roughly at …

Monsoon maps on trees

More than half the world’s population depends on the Asian monsoon water for agriculture. Beginning with the British mathematician Sir Gilbert Walker in the 19th century, much time has been devoted in trying to understand the summer rains. But the observational record is too short to explain long-term variability in …

Isotopic characterization of dual monsoon precipitation evidence from Kerala, India

The stable isotopes oxygen-18, deuterium and the radioactive isotope tritium of the precipitation samples collected from Kozhikode, Kerala were analysed from 2005 to 2007 for the isotopic characterization of the rainfall derived from two monsoons in the region.

Monsoon to be delayed in UP

LUCKNOW: The south-west monsoon hit the Kerala coast on time (on June 1) this year but its arrival in UP may be delayed by four-five days. The cyclone

India needs indigenous monsoon model for better prediction, says IMD chief

Pune Director of weather forecasting, India Meteorology Department, Medha Khole on Tuesday said owing to India

Widespread rainfall across state

Four persons, including two children, died in Kutch since Sunday night as tropical cyclone Phet, despite weakening into a depression, led to widespread rainfall accompanied with strong winds across the state. There was a sharp decline in temperature all across as the mercury dipped by five to 10 degrees celsius …

Hopes rise for monsoon revival

NEW DELHI: There could be some good development on the monsoon front soon. According to the India Meteorological Department, monsoon activity in the peninsular region, which had remained subdued for the past several days, could revive in the next two days. IMD Director General Ajit Tyagi told journalists that there …

A unique computer model to predict 2010 hurricane season

STATISTICAL PROOF: From 1995 to 2009, the model predicted a mean of 13.7 named storms of which a mean of 7.8 were hurricanes. In reality, the average during this period was 13.8 named storms with a mean of 7.9 hurricanes. Florida State University scientists who have developed a unique computer …

At 34.2C, highest min temp in 5 years

The maximum temperature in the city on Wednesday was recorded at 42.8 degrees Celsius, which was nearly two degrees less than Tuesday's maximum of 44.1 degrees. However, the minimum temperature, recorded at 34.2 degrees Celsius, was up by more than six degrees Celsius over Tuesday's minimum of 28.2 degrees. It …

Total column density variations of ozone (O3) in presence of different types of clouds

The zenith sky scattered light spectra were carried out using zenith sky UV-visible spectrometer in clear and cloudy sky conditions during May

Active and break spells of the Indian summer monsoon

In this paper, we suggest criteria for the identification of active and break events of the Indian summer monsoon on the basis of recently derived high resolution daily gridded rainfall dataset over India (1951

Monsoon finally hits Kerala coast

The much-awaited southwest monsoon finally hit the Kerala coast on Monday. Over the next few days, the coastal areas are likely to experience more rainfall than the interior parts of peninsular India due to a storm developing in the Arabian sea. Monsoon had been lingering after reaching the Sri Lanka …

Norwester crowns coolest May in 5yrs

Jamshedpur, May 31: The month of May has stolen the thunder from April, literally. With as many as four Nor

Met officials predict early monsoon

Kakinada, May 31: The general public of East Godavari will shortly heave a sigh of relief from the scorching heat, as their eagerly-awaited seasonal monsoon rains are likely to reach the district in five to six days. Met officials term it as an early monsoon, which was delayed for more …

32.4: Shimla hottest in 170 yrs

The soaring mercury beat all available records to make today the hottest day in the Queen of the Hills in 170 years. As the temperature climbed to 32.4

Monsoon likely to set in over Kerala in 3 to 4 days

P. Sunderarajan NEW DELHI: The stage is finally set for the onset of the monsoon over Kerala. The India Meteorological Department (IMD) on Thursday said conditions were favourable for the onset in the next three to four days. A senior IMD official told TheHindu that the department was optimistic of …

Rain cloud is mostly made of bacteria

Not Soot And Dust, But Bugs Serve As Nuclei For Raindrops Jim Robbins Bozeman (Montana): Walking across the campus of Montana State University here, David Sands, a plant pathologist, says the blanket of snow draped over the mountains around town contains a surprise. The cause of most of it, he …

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