Measuring Co2 Concentration by Airborne Lidar

CO2 is the most important warming gas in atmosphere, it's meaningful to measure the CO2 concentration with high precise by different sensors. In this manuscript, we introduced the campaign of QHD (Qinhuangdao) flights, which equipped with CO2- IPDA (integrated path of different absorption LIDAR), an in-situ CO2 sensor, thermometer, hygrometer and GPS (Global Positioning System). A fast and accurately retrieve method of CO2 by the oral data acquired by the airborne IPDA has been developed by our group. These flight contains three different landforms, including sea, city and mountain. It shows apparent difference on the distribution of CO2 among different landforms. Finally, we compared XCO2 data from OCO-2 and results of XCO2 calculated by IPDA system, it shows little difference.