Overview >

The shipping emission inventory in East Asia is established based on the Shipping emission inventory model (SEIM) developed by Tsinghua University. The model is developed based on the data from high-precision ship Automatic Identification System (AIS). The underlying database contains about 30 billion AIS signals each year, covering global international fleet activity information. 98% of the AIS signals have a time interval within 6 minutes. Currently, it provides gridded data of annual ship emissions in East Asia with a spatial resolution of 0.1 degrees in 2017, involving SO₂, NO_x, CO, VOC, PM_2.5, OC and BC, which enables multiscale modeling of air quality by chemical transport models.

The SEIM database is developed and maintained by Tsinghua University. If you have any questions, please contact Huan Liu (liu_env@tsinghua.edu.cn).

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The SEIM database is restricted to non-commercial purposes. Papers, reports or products using the SEIM data should cite the related publications of the SEIM database.

Citation >

The shipping emission inventory in East Asia should be cited as:

Liu, H. et al. Health and climate impacts of ocean-going vessels in East Asia. Nature Climate Change 6, 1037-1041, doi:10.1038/nclimate3083 (2016).

Liu, H. et al. Emissions and health impacts from global shipping embodied in US–China bilateral trade. Nature Sustainability 2, 1027-1033, doi:10.1038/s41893-019-0414-z (2019).