Identification

Title

The relative importance of geoeffective length versus Alfvén wing formation in the saturation of the ionospheric reverse convection potential

Abstract

We compare the relative importance of two competing mechanisms (Alfven wing vs. magnetosheath force balance) in determining the saturation of the reverse convection potential under northward interplanetary magnetic field. We run the Lyon-Fedder-Mobarry magnetohydrodynamic model under strong northward interplanetary magnetic field (20 nT) twice: once with a solar wind number density of 20 cm(-3) and once with a density of 2 cm(-3). We find that the reverse convection potential is reduced for the low-density run, as predicted by both models. We also find that despite the formation of Alfven wings, the sunward flows in the magnetosphere are governed by the local reconnection physics. Further, the length of the x-line poleward of the cusp is reduced by a factor of 2 for the low-density run. This suggests that the reverse convection potential is governed by the local reconnection physics at the x-line and the geoeffective length.

Resource type

document

Resource locator

Unique resource identifier

code

http://n2t.net/ark:/85065/d7hd7zqk

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

2019-02-16T00:00:00Z

Frequency of update

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Conformity

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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