Identification

Title

Quantifying geomagnetic activity's contribution to the Global E-region Electron density's day‐to‐day variability using Spire Radio Occultation observations

Abstract

Using the unprecedented sampling of the Spire Radio Occultation (RO) data set, this paper statistically estimates geomagnetic dependencies of the global E‐region Electron Density's (Ne) day‐to‐day variability. To assesses how much Spire RO‐observed variabilities are consistent with known Physics, comparison is made with the Specified Dynamics–Whole Atmosphere Community Climate Model with Ionosphere/Thermosphere eXtension (SD‐WACCM‐X), a first principles Physics‐based model. Results show that the largest geomagnetic dependency on Spire and SD‐WACCM‐X E‐region Ne occurs at night over the auroral latitudes with coefficients of determination at around 49% and 80%, respectively. Their regression coefficients are both between +10%/Kp index to +16%/Kp index. On the other hand, Spire and SD‐WACCM‐X substantially disagree on the geomagnetic dependencies during day‐time. These results suggest that Spire RO's observations of E‐region Ne geomagnetic dependencies may only be substantially explained by known physics at night and not during the day.

Resource type

document

Resource locator

Unique resource identifier

code

https://n2t.net/ark:/85065/d79s1wdc

codeSpace

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

geoscientificInformation

Keywords

Keyword set

keyword value

Text

originating controlled vocabulary

title

Resource Type

reference date

date type

publication

effective date

2016-01-01T00:00:00Z

Geographic location

West bounding longitude

East bounding longitude

North bounding latitude

South bounding latitude

Temporal reference

Temporal extent

Begin position

End position

Dataset reference date

date type

publication

effective date

2025-02-16T00:00:00Z

Frequency of update

Quality and validity

Lineage

Conformity

Data format

name of format

version of format

Constraints related to access and use

Constraint set

Use constraints

<span style="font-family:Arial;font-size:10pt;font-style:normal;" data-sheets-root="1">Copyright author(s). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.</span>

Limitations on public access

None

Responsible organisations

Responsible party

contact position

OpenSky Support

organisation name

UCAR/NCAR - Library

full postal address

PO Box 3000

Boulder

80307-3000

email address

opensky@ucar.edu

web address

http://opensky.ucar.edu/

name: homepage

responsible party role

pointOfContact

Metadata on metadata

Metadata point of contact