← Search

Data · dataset · 2026

A comparison study of NO cooling between TIMED/SABER measurements and TIEGCM simulations

Listed in National Center for Atmospheric Research

We investigate the latitudinal and longitudinal variations of thermospheric nitric oxide (NO) cooling rate from 2005 to 2016.

Description

We compare the maximum of the NO cooling rate and its altitude from measurements by the Sounding of the Atmosphere using Broadband Emission Radiometry (SABER) instrument on National Aeronautics and Space Administration (NASA)'s TIMED (Thermosphere-Ionosphere-Mesosphere Energetics and Dynamics) satellite and from simulations by the Thermosphere-Ionosphere-Electrodynamics General Circulation Model (TIEGCM).

In both data and model, the maximum NO cooling rate varies with similar to 11-year solar cycle, while the altitude of the peak value does not. At local noon, the maximum NO cooling rate from TIEGCM is significantly larger than that derived from SABER, especially in solar minimum. There are differences in the altitudes of the maximum NO cooling rates between the observations and simulations.

Read the rest (2 more)

The largest difference occurs at noon at low latitudes, with SABER values exceeding TIEGCM values by more than 10 km with a maximum difference of 16 km near solar maximum. Model sensitivity tests suggest that the biases are caused by a model temperature overestimation in the low thermosphere, and tides in the TIEGCM lower boundary play an important role in inducing the low-latitude temperature overestimation by the model.

In addition, SABER's height-integrated cooling rate (NO flux) exceeds that from TIEGCM, primarily due to the lower cooling rates at 140-200 km in the model.

Links

Get the data

Where it is published

Catalogue records · 1

Topics

Inferred from text
Atmospheric sciences 75% · Longitudinal study 65%
Provenance · 1 source records, 9 field assertions
SourceKeyLast seenRaw
National Center for Atmospheric Research21b4372a-5cf9-464b-bfd0-f9a399dbf79712 d agoJSON v1
FieldAssertionExtractorEvidence
concepts[field].anzsrc:group:3701enrichment · data ucar edutaxonomy-embedding@1.1.0title+keywords+description (75%)
concepts[field].local:field:earth-environmentalmapping · data ucar educonnector:data_ucar_edu@1.0.0
concepts[field].local:field:ocean-atmosphericmapping · data ucar educonnector:data_ucar_edu@1.0.0
concepts[method].local:method:longitudinal-studyenrichment · data ucar edukeyword-concept-rules@1.0.0title+description (65%)
created_datesource · data ucar educonnector:data_ucar_edu@1.0.0
descriptionsource · data ucar educonnector:data_ucar_edu@1.0.0/notes
publication_datesource · data ucar educonnector:data_ucar_edu@1.0.0
titlesource · data ucar educonnector:data_ucar_edu@1.0.0/title
updated_datesource · data ucar educonnector:data_ucar_edu@1.0.0