NEDM2020 Updates

August 2025

The Neustrelitz Electron Density Model (NEDM2020) is now available to the community through the CCMC instant-Run (IR) service and Runs-On-Request (ROR) Service.

The NEDM2020 is a three-dimensional electron density model developed at German Aerospace Center (DLR) for supporting space weather services and mitigation of propagation errors for trans-ionospheric signals. The 3D electron density distribution is modelled by combining a Chapman layer representing the ionospheric F-layer, an E-layer model and a plasmasphere model. The topside ionosphere and plasmasphere is modelled by superposing the Neustrelitz Plasmasphere Model (NPSM) to the F-layer and E-layer models. The combined model describes the ionosphere and plasmasphere up to GNSS orbit height of about 20,000 km.