Identification

Title

Simultaneous observations of geoelectric and geomagnetic fields produced by magnetospheric ULF waves

Abstract

Geomagnetic perturbations (B-GEO) related to magnetospheric ultralow frequency (ULF) waves induce electric fields within the conductive Earth-geoelectric fields (E-GEO)-that in turn drive geomagnetically induced currents. Though numerous past studies have examined ULF waveB(GEO)from a space weather perspective, few studies have linked ULF waves withE(GEO). Using recently available magnetotelluric impedance andE(GEO)measurements in the contiguous United States, we explore the relationship between ULF waves andE(GEO). We use satellite, ground-based radar,B-GEO, andE(GEO)measurements in a case study of a plasmaspheric virtual resonance (PVR), demonstrating that the PVRE(GEO)has significant spatial variation in contrast to a relatively uniformB(GEO), consistent with spatially varying Earth conductivity. We further show ULF waveE(GEO)measurements during two moderate storms of similar to 1 V/km. We use both results to highlight the need for more research characterizing ULF waveE(GEO).

Resource type

document

Resource locator

Unique resource identifier

code

https://n2t.org/ark:/85065/d7028vvd

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

2020-09-28T00:00:00Z

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