Identification

Title

Global maps of equatorial plasma bubbles depletions based on FORMOSAT-7/COSMIC-2 ion velocity meter plasma density observations

Abstract

FORMOSAT-7/COSMIC-2 is the largest equatorial multi-satellite constellation of six full-size satellites to study the equatorial ionosphere. Each satellite is equipped by an ion velocity meter (IVM) instrument to provide high rate in situ plasma density observations along the low-inclined satellite orbits at similar to 530-550 km altitude. Six satellites provide an unprecedented dense coverage of the entire equatorial region around the globe and allow reliable detection of equatorial plasma bubbles (EPBs) and plasma density irregularities at different local times/longitudinal sectors simultaneously. We present a method for detection of EPBs in FORMOSAT-7/COSMIC-2 in situ plasma density data and construction of the global maps of EPB geolocations. The results in the form of time series and IVM-based global Bubble Maps have a great potential for both near real-time monitoring of space weather conditions and long-term statistical analysis of EPB occurrence in regional or global scales. We present first FORMOSAT-7/COSMIC-2 derived climatological characteristics of the post-sunset and post-midnight EPBs occurrence probability and their apex altitudes during a period of low solar activity. Also, we demonstrate the good performance of the FORMOSAT-7/COSMIC-2 IVM-based Bubble Maps when compared to optical images and ground-based ionosonde observations.

Resource type

document

Resource locator

Unique resource identifier

code

https://n2t.org/ark:/85065/d7jd51sv

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

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End position

Dataset reference date

date type

publication

effective date

2023-05-01T00:00:00Z

Frequency of update

Quality and validity

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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