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Kiểm kê khí thải phát sinh do đốt rơm rạ ngoài đồng ruộng trên địa bàn thủ đô Hà Nội bằng ứng dụng vệ tinh SAR Sentinel-1

Bài viết này trình bày phương pháp trích xuất dữ liệu về diện tích và năng suất lúa thông qua việc sử dụng ảnh vệ tinh SAR Sentinel-1 để ước tính lượng khí thải phát sinh từ hoạt động đốt rơm rạ trên đồng ruộng. | VNU Journal of Science Earth and Environmental Sciences Vol. 37 No. 1 2021 81-92 Original Article Application of SAR Sentinel-1 Satellite for Air Emission Inventory from Rice Straw Open Burning in Hanoi Hoang Anh Le1 Nguyen Viet Thanh1 Do Minh Phuong2 Ho Quoc Bang3 Nguyen Quang Hung1 Dinh Manh Cuong1 1 VNU University of Science Vietnam National University 334 Nguyen Trai Thanh Xuan Hanoi Vietnam 2 Center for Informatics and Statistics CIS Ministry of Agriculture and Rural Development MARD 2 Ngoc Ha Ba Dinh Hanoi Vietnam. 3 Institute for Environment and Resources Vietnam National University Ho Chi Minh City Vietnam 142 To Hien Thanh 10 District Ho Chi Minh City Vietnam Received 19 May 2020 Revised 15 July 2020 Accepted 04 August 2020 Abstract Air emission inventory is an advance tool in application research of environmental field. Emission inventory can be conducted in different approaches in which statistical data collection is considered to be a conventional way with relatively low reliability and delaying time. This study uses a methodology of extracting activity data of cultivation area and rice production employing SAR Sentinel-1 images in order to overcome the limitation of conventional method. Consequently the data is utilized to estimate the total air pollutants emitted from rice straw open burning. Results show that integration of remote sensing data SAR Sentinel-1 satellite improves the seasonal spatial rice cultivated area and production distribution with high reliability. The study implies a considerable potential of satellite data for estimation of air emission from agriculture waste combusion due to its availability real-time and low cost features. Application for Hanoi in 2019 performs that an amount of 460 thousand tons of rice straw was burned thus created 542 thousand tons of CO2 90 42 thousand tons of CO 7 and other air pollutants of the rest 3 . Keywords SAR sentinel emission inventory rice straw. _ Corresponding author. E-mail address .