River Rime, Meteorites and a Dam in Transition
The Songhua gives Jilin City several ways to read water and time. In winter, rime forms where moisture, cold air and local conditions meet; meteorological work helps explain why it appears along particular reaches rather than everywhere. The 1976 meteorite fall offers a different kind of evidence, reconstructed from fragments and isotopes. At Fengman, a new dam was built downstream; a controlled opening in 2019 began transferring water between the structures while the old dam remained part of a staged handover.
Rime coats trees beside the Songhua River in Jilin City, while open water runs between the snowy banks.
Follow the Songhua River through Jilin’s winter conditions: open water, cold air, local rime types and the meteorological work behind the changing branches.
Follow the river through open water, cold air and changing local conditions, with the science behind rime alongside the visible ice.
The Jilin No. 2 Meteorite display at Jilin City Meteorite Museum.
An impact pit, laboratory samples and a great museum specimen offer different ways to read the Jilin meteorite fall. Isotope measurements reveal why the position of a small sample matters.
Isotopes in fragments from the 1976 fall help trace the meteorite’s history. At Fengman, engineers transferred reservoir water in stages from the old dam to a new structure downstream.