2021-10-17

Cargo ships waiting to unload: viewing the interruption of global supply chain from NASA satellite image

By yqqlm yqqlm

Cargo ships waiting to unload: viewing the interruption of global supply chain from NASA satellite image

on October 10, 2021, the operational land imager (OLI) on Landsat 8 took this natural color image. Dozens of cargo ships were waiting for their turn to unload offshore. On the same day, the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA’s Terra satellite obtained similar images (below)

Cargo ships waiting to unload: viewing the interruption of global supply chain from NASA satellite image(1)

according to the data released by the Southern California ocean exchange, there were 87 container ships near the two ports on the same day. 27 ships are on the berth and 60 ships are waiting offshore (or anchored or floating in the drifting area). The number of waiting vessels is lower than the record 73 on September 19, 2021. Since June 2020, the number of waiting ships in these two ports has been unusually large. Before that, cargo ships rarely waited for unloading

in fact, the backlog of ships in the port is not limited to Los Angeles. According to news reports, ports in New York, New Jersey, Georgia and Texas are facing similar challenges in other parts of the United States. Meanwhile, more than 67 container ships were waiting at Yantian port in Shenzhen, China, partly due to the temporary closure of the port caused by tropical cyclone Kompasu. More than 10 container ships were waiting at the ports of Malaysia, Singapore, Hong Kong and Shanghai in mid October, Bloomberg reported

NASA funded researchers have used satellites and other tools to track the different ways in which the covid-19 pandemic has changed all aspects of human activities and its impact on the environment. Researchers have tracked indicators from air pollution and night light activity and shipping. In particular, the inter agency implementation and advanced concept team (impact) of NASA Marshall Space Flight Center has been using artificial intelligence technology and high-resolution satellite images to track shipping activities at major U.S. ports