Identification

Title

First zonal drift velocity measurement of Equatorial Plasma Bubbles (EPBs) from a geostationary orbit using GOLD data

Abstract

The National Aeronautics and Space Administration (NASA) Global-scale Observations of the Limb and Disk (GOLD) satellite takes far-ultraviolet images of the Earth from geostationary orbit. GOLD observes the complete structure of equatorial plasma bubbles (EPBs). Since there are repeated observations of the same regions of the Earth, the zonal drift velocities of EPBs are derived using GOLD data. EPBs observed within 60-25 degrees W longitudes on 27-29 November 2018 are considered in the present analysis. The drift velocities obtained on 27 November 2018 are 116 4, 118 6, and 105 9 m/s at the North and South crests of equatorial ionization anomaly (EIA) and the magnetic equator, respectively. While on 29 November the velocities 107 10, 106 8, and 110 +/- 4 m/s are in agreement with the 27th (within the uncertainties), on 28 November the velocities are substantially lower: 80 +/- 3, 95 +/- 7, and 88 +/- 11 m/s. This is the first simultaneous measurement of EPB zonal drift velocities at both crests of EIA and the magnetic equator. On 27-29 November 2018, the average spacing between adjacent EPBs is found to be similar to 377, 526, and 442 km, respectively.

Resource type

document

Resource locator

Unique resource identifier

code

http://n2t.net/ark:/85065/d7w95dhw

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

2020-09-01T00:00:00Z

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