Chinese Journal of Polar Research

Chinese Journal of Polar Research ›› 2020, Vol. 32 ›› Issue (4): 555-564.DOI: 10. 13679/j.jdyj.20190075

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Spatiotemporal distribution patterns of active fire in the Arctic region

Xue Naiting1, Zhang Zhen1, Du Zhiheng2, Hu Kehong1, Zhang Shasha1, Huang Danni1   

  1. 1. School of Geomatics, Anhui University of Science and Technology, Huainan 232000, China;
    2.State Key Laboratory of Cryospheric Sciences, Northwest Institute of Eco-Environment and Resources,  Chinese Academy of Sciences, Lanzhou 730000, China
  • Received:2019-12-30 Revised:2020-04-22 Online:2020-12-30 Published:2020-12-24

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Abstract:

Based on Fire Information for Resource Management System (FIRMS), MODIS and VIIRS active fire position data, dynamic changes of active fires in the Arctic region were analyzed at different temporal (yearly, monthly, and hourly) and spatial (country) scales from 2000 to 2018, to provide a basis for the prediction and management of active fires. The results showed that: (1) from 2000 to 2018, MODIS C6 (MODIS NRT 1 km active fire products, MCD14DL) and VIIRS V1 (VIIRS NRT 375 m active fire products, VNP14IMGTDL_NRT) active fire frequency trends were consistent, with maximum and minimum values appearing in 2013 and 2015 respectively. (2) In the Arctic region, the country with the greatest cumulative active fire frequency was Russia, and the country with the lowest active fire frequency was Norway. The interannual variations of the two sets of products were quite similar in different countries. (3) The active fires in the seven countries of the Arctic region (Russia, the United States, Canada, Denmark, Norway, Sweden, and Finland) were mainly concentrated in June–August, and the active fire observation period was mainly concentrated around 12:00 local time in various countries.