English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The auroral emission of the first negative system of N2+ at 427.8 nmis analyzed using simultaneous measurements from the ground with ALIS(Auroral Large Imaging System) and from space with optical (MAC) and particle(ESA) instruments of the Reimei satellite. The study has two main objectives.The first is validation of the absolute calibration of the ALIS and theReimei MAC cameras. The other task is to evaluate different cross sections ofthe electron excitation of N2+ that are used for the modeling of theauroral 1N system emissions. The simultaneous measurements of the 427.8 nmemission by ALIS and Reimei imagers show excellent agreement, indicating thatthe calibration of the two instruments is correct. Comparison of the427.8 nm emission intensity calculated using the incident electron fluxmeasured by the Reimei particle instruments with intensities measured by theoptical imagers show that the best match is reached with the cross sectionfrom Shemansky and Liu (2005)

annales geophysicae

First negative system of N&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt;&amp;lt;sup&amp;gt;+&amp;lt;/sup&amp;gt; in aurora: simultaneous space-borne and ground-based measurements and modeling results