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

CHAMP (CHAllenging Minisatellite Payload) and GRACE (GravityRecovery And Climate Experiment) formed a satellite configurationfor precise atmospheric sounding during the first activation ofthe GPS (Global Positioning System) radio occultation experimentaboard GRACE on 28 and 29 July 2004. 338 occultations wererecorded aboard both satellites, providing globally distributedvertical profiles of refractivity, temperature and specifichumidity. The combined set of CHAMP and GRACE profiles showsexcellent agreement with meteorological analysis. Almost norefractivity bias is observed between 5 and 30km, the standarddeviation is between 1 and 2% within this altitude interval. TheGRACE satellite clock stability is significantly improved incomparison with CHAMP. This allows for the application of a zerodifference technique for precise analysis of the GRACE occultationdata

GPS radio occultation with CHAMP and GRACE: A first look at a new and promising satellite configuration for global atmospheric sounding