5:15 PM - 6:45 PM
[HCG26-P05] Overview of an Intensive Observation Campaign for Quantification of Air Pollution from Agricultural Residue Burning in Northwestern India.
In the northwest Indian region from Punjab to Delhi, it is pointed that large amounts of air pollutants generated by the crop residue burning (CRB) of large amounts of rice straw after the rice harvest in the Punjab region reach the Delhi region, for the distance about 50 to 200 km every year. The Aakash Project of the Reserch Institute for Humanity and Nature (RIHN) is conducting an intensive observation campaign during the rice harvesting season (September-November) in 2022-23 to observe PM2.5 and air pollutant gases (CO, NOx, O3) in the area and to quantify the impact of the pollutants on air pollution in Delhi. The intensive observation campaign was conducted with the aim of quantifying the impact of pollutants on air pollution in Delhi.
The relationship between meteorological elements (rainfall, wind and PBLH), the distribution of straw burning detected by satellites, and PM2.5 concentration with an eye on the PM2.5 high concentration events observed in 2022-2023 was analyzed.
The results of the analysis of the observation data were updated on a semi-real-time basis on the Aakash Project website (https://aakash-rihn.org/en/data-set ). CSV files of the daily average PM2.5 data for fall 2022 (September-November) are available on their, too. The data for 2023 will also be prepared for release according to the progress of the pubishment of research results.
Furthermore, the observation data are also used for validation of the atmospheric chemical transport model. Agricultural residue burning takes place during the short period after the rice harvest before wheat is sown. The emission of air pollutants is based on fire detection by satellites, but satellite observations twice a day are not sufficient to detect a short period of rice straw burning. In addition, estimation of the burned area using visible images on the ground might be less accurate if the observation frequency is low. Therefore, the Aakash members also interview farmers about the burning rates, dates and time of residue burning.
Using this information in a comprehensive manner, the project is attempting to correct emissions for chemical model calculations.
In this session, Aakash members will present their results from this campaign in detail; the estimation of the amount and area of agricultural residue burning using satellite observation data, the transport of air pollutants analyzed from meteorological data, the relationship between meteorological events such as rainfall and wind distribution, and high concentration events, the effect of secondary production on PM2.5 high concentration events, and the simuration results of atmospheric chemical transport models, and so on.
The intensive observation campaign is contributed by a number of Japanese and Indian Aakash project researchers and CIPT, a non-profit organization working in the Punjab region.
This research is supported by Research Institute for Humanity Nature Project No.14200133 (Aakash)
The relationship between meteorological elements (rainfall, wind and PBLH), the distribution of straw burning detected by satellites, and PM2.5 concentration with an eye on the PM2.5 high concentration events observed in 2022-2023 was analyzed.
The results of the analysis of the observation data were updated on a semi-real-time basis on the Aakash Project website (https://aakash-rihn.org/en/data-set ). CSV files of the daily average PM2.5 data for fall 2022 (September-November) are available on their, too. The data for 2023 will also be prepared for release according to the progress of the pubishment of research results.
Furthermore, the observation data are also used for validation of the atmospheric chemical transport model. Agricultural residue burning takes place during the short period after the rice harvest before wheat is sown. The emission of air pollutants is based on fire detection by satellites, but satellite observations twice a day are not sufficient to detect a short period of rice straw burning. In addition, estimation of the burned area using visible images on the ground might be less accurate if the observation frequency is low. Therefore, the Aakash members also interview farmers about the burning rates, dates and time of residue burning.
Using this information in a comprehensive manner, the project is attempting to correct emissions for chemical model calculations.
In this session, Aakash members will present their results from this campaign in detail; the estimation of the amount and area of agricultural residue burning using satellite observation data, the transport of air pollutants analyzed from meteorological data, the relationship between meteorological events such as rainfall and wind distribution, and high concentration events, the effect of secondary production on PM2.5 high concentration events, and the simuration results of atmospheric chemical transport models, and so on.
The intensive observation campaign is contributed by a number of Japanese and Indian Aakash project researchers and CIPT, a non-profit organization working in the Punjab region.
This research is supported by Research Institute for Humanity Nature Project No.14200133 (Aakash)