Identification

Title

The 27‐day solar rotational cycle response in the mesospheric metal layers at low latitudes

Abstract

To investigate the response of the meteoric metal layers in the mesosphere and lower thermosphere regions to the 27‐day solar rotational cycle, a long‐term simulation of the Whole Atmosphere Community Climate Model with the chemistry of three metals (Na, K, and Fe) was analyzed. The correlation between variability in the metal layers and solar 27‐day forcing during different phases of the solar 11‐year cycle reveals that the response in the metal layers is much stronger during solar maximum. The altitude‐dependent correlation and sensitivity of the metal layers to the solar spectral irradiance demonstrates that there is a significant increase in sensitivity to solar rotational cycle with increasing altitude. Above 100 km, the sensitivity of the metals to changes of 10% in the solar spectral irradiance at Lyman‐alpha is estimated to be −5%. A similar response is seen in Na layer measurements made by the Optical Spectrograph and InfraRed Imaging System instrument on the Odin satellite.

Resource type

document

Resource locator

Unique resource identifier

code

http://n2t.net/ark:/85065/d74f1tvc

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

2019-07-08T00:00:00Z

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

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