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 Global-Scale Wave Model (GSWM) is asteady-state two-dimensional linearized model capable of simulating the solartides and planetary waves. In an effort to understand the capabilities andlimitations of the GSWM throughout the upper mesosphere and thermosphere acomparative analysis with observational data is presented. A majority of theobservational data used in this study was collected during the World Daycampaign which ran from 20 January to 30 January 1993. During this campaign datafrom 18 ground-based observational sites across the globe and two instrumentslocated on the UARS spacecraft were analyzed. Comparisons of these data with thesimulations from the GSWM indicate that the GSWM results are in reasonableagreement with the observations. However, there are a number of cases where theagreement is not particularly good. One such instance is for the semidiurnaltide in the northern hemisphere, where the GSWM estimates may exceedobservations by 50% . Through a number of numerical simulations, it appears thatthis discrepancy may be due to the eddy diffusivity profiles used by the GSWM.Other differences relating to the diurnal tide and the quasi-two-day wave arepresented and discussed. Additionally, a discussion on the biases and aliasingdifficulties which may arise in the observational data is also presented

An intercomparison between the GSWM, UARS, and ground based radar observations: a case-study in January 1993