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 …

Determining relationships and mechanisms between tropospheric ozone column concentrations and tropical biomass burning in Thailand and its surrounding region

This study aims to determine the variability and trends of tropical biomass burning, tropospheric ozone levels from 2005–2012 in Thailand and the ozone transport from the surrounding regions. Intense biomass burning and tropospheric ozone in this area have a seasonal variability with the maximum generally occurring during the dry season. …

Monsoon races to Kashmir from Kanyakumari: Equatorial system of clouds & conditions in Indian Ocean may back plentiful rains

Global climatic conditions have turbocharged the monsoon and given it the momentum to take it up to Kashmir in three to four days, a week ahead of schedule, and accelerate agricultural activity in the grain-bowl states of Punjab and Haryana on the say. Rainfall in June is almost certain to …

Moderate droughts rise, but impact on farming down'

Spread of irrigation, rise in drought-tolerant seeds have come as saviour, says study The southwest monsoon might have made a good start, but its future looks bleak, with many models predicting a let up in showers around the first week of July. The picture for north-west India, the country's premier …

Radiative and thermodynamic responses to aerosol extinction profiles during the pre-monsoon month over South Asia

Aerosol radiative effects and thermodynamic responses over South Asia are examined with a version of the Weather Research and Forecasting model coupled with Chemistry (WRF-Chem) for March 2012. Model results of Aerosol Optical Depth (AOD) and extinction profiles are analyzed and compared to satellite retrievals and two ground-based lidars located …

IMD: Monsoon to be good through June

The monsoon is likely to remain strong through the month of June, the India Meteorological Department said on Thursday, as another storm system developed over the Bay of Bengal, promising widespread rain across central and south India over the next four-five days. As on June 18, the monsoon was 10% …

Stronger El Nino may reduce rainfall between June & Sept

PUNE: Less rainfall in July, August and September seems more likely now, as a fresh forecast by the India Meteorological Department (IMD) has indicated that El Nino will get stronger during this period of monsoon. This forecast is in tandem with the department's earlier prediction of a deficient rainfall this …

Highest no. of small & medium projects, but lowest water stock

Marathwada, which has the second largest storage capacity in dams after the Pune region, has left with the lowest water storage of 5% across all regions of the state on Tuesday. The large, medium and small dams in Marathwada have a collective storage capacity of 7,603 million cubic metres of …

Farmers to get SMS alerts on extreme weather from today

The agriculture ministry has tied up with leading cellular operators to send decision-critical information to farmers through SMS Farmers staying near India Meteorological Department’s 146 weather stations spread across the country would henceforth get instant alerts on possible extreme weather conditions on their mobile phones. Through the special service titled …

Monsoon gets a boost, rains 13% above normal

The monsoon has got off to a good start after a slightly delayed onset, with widespread showers over the past five days taking the countrywide rain tally to 13% above normal so far this month. The surge in rains has been aided by a favourable weather system in the Indian …

Australia cuts farm commodity forecasts due to El Nino

Australia has slashed forecast production levels for wheat, cotton and other agricultural commodities in 2015-16 as the El Nino weather phenomenon grips the country and dries out farmland. Meteorologists warn the current El Nino, the second in five years, will persist until the end of the year. "We should see …

El Nino warning for the nation’s farmers

However, autumn yields may not fare so well due to the uncertain conditions brought about by El Nino, the warming of the sea’s surface in the Pacific Ocean. The weather pattern can cause uncertainties the agricultural sector could do without. El Nino will continue to strengthen this summer and will …

A 12-year observation of water-soluble ions in TSP aerosols collected at a remote marine location in the western North Pacific: an outflow region of Asian …

In order to characterize the long-term trend of remote marine aerosols, a 12-year observation was conducted for water-soluble ions in TSP (total suspended particulate) aerosols collected from 2001 to 2012 in the Asian outflow region at Chichijima Island in the western North Pacific. We found a clear difference in chemical …

U.S. weather forecaster sees El Nino likely to last into 2016

A U.S. weather forecaster warned on Thursday the El Nino weather pattern that can cause droughts in Asia and heavy rain in the Americas will likely last into next year, longer than previously expected and potentially roiling crops and commodity prices. The Climate Prediction Center (CPC), an agency of the …

Amateur weather watcher dismisses ‘drought year’ fears

MARGAO: Despite the India meteorology department (IMD) predicting a rain-deficient year for the country, amateur weather watchers feel that there is no cause for concern yet, as the quantum of rainfall in India varies from region to region, and well-planned anti-drought measures can offset any adverse rainfall situations. "There are …

Weak monsoon to be credit negative for India: Moody's

IMD has revised its monsoon forecast for 2015 from 'below normal' to 'deficit' A weak monsoon is likely to be credit-negative for India as it is expected to push up food inflation as well as government deficits, global rating agency Moody’s said on Monday. IMD has revised its monsoon forecast …

Indian Ocean Dipole and the monsoon: The Joker in the forecast pack

Dr Suryachandra Rao, Associate Mission Director, Monsoon Mission, at the Indian Institute of Tropical Meteorology (IITM), explains a key atmosphere-ocean phenomenon. What is the Indian Ocean Dipole (IOD)? It is an atmosphere-ocean coupled phenomenon in the tropical Indian Ocean (like the El Nino is in the tropical Pacific), characterised by …

Ozone and aerosol tropospheric concentrations variability analyzed using the ADRIMED measurements and the WRF and CHIMERE models

During the months of June and July 2013, over the Euro–Mediterranean area, the ADRIMED (Aerosol Direct Radiative Impact on the regional climate in the Mediterranean region) project was dedicated to characterize the ozone and aerosol concentrations in the troposphere. It is first shown that this period was not highly polluted …

Private forecasters bet on Indian Ocean to turnaround monsoon current

Private forecasters are counting on temperature changes in the Indian Ocean to strengthen the monsoon current like it did in 1997, when rainfall was normal, despite a strong El Nino. While forecasters are divided about the monsoon outlook, experts say that India has become less vulnerable to monsoon rain as …

Fears over deficit monsoon misplaced, assures Jaitley

Jaitley said on Thursday the IMD forecast was being drawn out in an exaggerated manner and conclusions on inflation or farm distress were far-fetched Finance Minister Arun Jaitley on Thursday sought to allay concern about a deficit monsoon and said advance estimates suggested rainfall would be normal in most parts …

Regional-scale simulations of fungal spore aerosols using an emission parameterization adapted to local measurements of fluorescent biological aerosol particles

Fungal spores as a prominent type of primary biological aerosol particles (PBAP) have been incorporated into the COSMO-ART (Consortium for Small-scale Modelling Aerosols and Reactive Trace gases) regional atmospheric model. Two literature-based emission rates for fungal spores derived from fungal spore colony counts and chemical tracer measurements were used as …

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