PCEEJ Equatorial Electrojet Model data for years 2003-2010 and 2014-2018


This dataset comprises the PCEEJ equatorial electrojet model current intensity values (mA/m). The PCEEJ is an empirical model based on the principal component analysis of satellite and ground equatorial electrojet data, described in detail in Soares et al. (2022), to which this data publication is supplement to. The model data is provided as text files (.csv extension) and Matlab-formatted files (.mat extension). For text files, there is one file per year (file name labeled with the corresponding year). For the Matlab format, there is only one Matlab file that contains all years as separate variables (variable name labeled with the corresponding year). Each yearly file/variable corresponds to a matrix: the rows represent local time/longitude bins and the columns represent days of year.

The local time/longitude bins (rows) always sum up to 432 (12 local time intervals and 36 longitude intervals). The day of year (columns) always starts in January 1st and ends in December 31st, leading to a total of 365 or 366. The PCEEJ model values of 13 years from 2003 to 2010 and from 2014 to 2018 are provided. The PCEEJ basis functions (principal components) are provided in the text and Matlab files labeled as ‘PC_Functions’. The ‘PC_Functions’ data is given as a 432x10 matrix, in which 432 stands for the aforementioned local time/longitude bins and 10 represents the 10 principal components used to obtain the PCEEJ model (in ascending order). Two additional auxiliary indices, namely ‘lt_index’ and ‘lon_index’ are also contained as text and Matlab files. These indices represent the corresponding local time and longitude values of each row of the PCEEJ yearly files and ‘PC_Functions’ files.

DOI https://doi.org/10.5880/GFZ.2.3.2022.003
Metadata Access http://doidb.wdc-terra.org/oaip/oai?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:doidb.wdc-terra.org:7600
Creator Soares, Gabriel B. ORCID logo; Yamazaki, Yosuke ORCID logo; Morschhauser, Achim ORCID logo; Matzka, Jürgen ORCID logo; Pinheiro, Katia J. ORCID logo
Publisher GFZ Data Services
Contributor Soares, Gabriel B.; Yamazaki, Yosuke; Morschhauser, Achim; Matzka, Jürgen; Pinheiro, Katia J.; Alken, Patrick; Yoshikawa, Akimasa; Hozumi, Kornyanat; Kulkarni, Atul; Supnithi, Pornchai
Publication Year 2022
Funding Reference Coordenação de Aperfeiçoamento de Pessoal de Nível Superior, 1799579
Rights CC BY 4.0; http://creativecommons.org/licenses/by/4.0/
OpenAccess true
Contact Soares, Gabriel B. (Observatório Nacional, Rio de Janeiro, Brazil); Matzka, Jürgen (GFZ German Research Centre for Geosciences, Potsdam, Germany)
Resource Type Model
Discipline Geosciences
Spatial Coverage along the geomagnetic equator; along the geomagnetic equator
Temporal Coverage Begin 2003-01-01T00:00:00Z
Temporal Coverage End 2010-01-01T01:00:00Z