Complementary multiple monitoring methods promote the “measurement and governance” linkage. “This laser pointers method can compensate for the dead spots in monitoring caused by satellite remote sensing monitoring that cannot penetrate the clouds and insufficient visible light at night. "Wang Wei, director of the Shijiazhuang Environmental Prediction and Forecasting Center's Forecast Analysis Division, said that as long as the lidar is turned on, the distribution of pollution sources can be seen at a glance. "With this device, you can monitor the changes in pollutant concentrations in real time from vertical and horizontal angles, which is equivalent to performing dynamic CT scans of pollutants in the air."
The reporter learned in the interview that the on-board laser pointer radar monitoring method is different from the previous monitoring point monitoring. This monitoring method is more macroscopic, large-scale and large-scale. The distribution of pollutants in the middle and high altitudes can also be seen in sand and dust weather. .
"When satellite remote sensing finds that some regions have heavy air pollution, we will launch on-board lidars and go to these air pollution hotspots by way of navigation to find the specific cause of pollution. The joint application of satellite remote sensing and laser pointer radar navigation You can monitor the pollution status of Shijiazhuang city from all directions and from multiple angles. "Wang Wei said.
By quickly locating the source of regional air pollution, it will help achieve the "measurement and governance" linkage, provide new methods and technologies for the scientific management of air pollution, and provide powerful data support for scientific pollution control and precise haze control.