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DC Field | Value | Language |
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dc.contributor.author | Okoh, Daniel | - |
dc.contributor.author | Obafaye, Aderonke | - |
dc.contributor.author | Rabiu, Babatunde | - |
dc.contributor.author | Seemala, Gopi | - |
dc.contributor.author | Kashcheyev, Anton | - |
dc.contributor.author | Nava, Bruno | - |
dc.date.accessioned | 2022-07-27T11:49:43Z | - |
dc.date.available | 2022-07-27T11:49:43Z | - |
dc.date.issued | 2021 | - |
dc.identifier.citation | Advances in Space Research, 68 (2021) 3835–3845, https://doi.org/10.1016/j.asr.2021.07.018 | en_US |
dc.identifier.uri | http://library.iigm.res.in:8080/xmlui/handle/123456798/216 | - |
dc.description.abstract | New results of ionospheric Total Electron Content (TEC) measurements obtained from a newly installed low-cost multi-frequency Global Navigation Satellite System (GNSS) U-BLOX receiver at Abuja-Nigeria (Geographic: 8.99 N, 7.38 E; Geomagnetic: 1.6 S) is presented. The paper motivates the use of the U-BLOX receiver for TEC studies in the African equatorial region. Data obtained for the periods of July-August and November-December 2020 are used. TEC data from the U-BLOX are compared with TEC obtained from a nearby high-cost GNSS receiver, and with COSMIC – RO (Constellation Observing System for Meteorology Ionosphere and Climate – Radio Occultation) TEC measurements. Corresponding TEC values from the AfriTEC and NeQuick ionospheric models are also presented. The results show an excellent level of agreement between the U-BLOX and high-cost GNSS receiver measurements. The COSMIC values were typically less than the U-BLOX and high-cost receiver values, and this is mainly attributed to the difference in TEC integration heights used for the two systems. The correlation coefficients between the U-BLOX values and values from the other four datasets are mostly greater than 0.9. The root-mean-square differences (RMSDs) between the U-BLOX and high-cost receiver values are about 2 TECU and less. The RMSDs between the U-BLOX values and values from each of the AfriTEC and NeQuick models are less than 5 TECU. The values are comparable and even lower than values computed in previous research that used TEC from highcost receivers. There is also consistent and significant agreement between 30-second ROT values computed from both the low-cost and high-cost receivers. These results summarily indicate that the U-BLOX is a good candidate for TEC studies in the region, just like the high-cost receivers. | en_US |
dc.language.iso | en | en_US |
dc.subject | U-BLOX, GNSS receiver; Total electron content, COSMIC, AfriTEC, NeQuick | en_US |
dc.title | New results of ionospheric total electron content measurements from a low-cost global navigation satellite system receiver and comparisons with other data sources | en_US |
dc.type | Article | en_US |
Appears in Collections: | UAS_Reprints |
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File | Description | Size | Format | |
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SeemalaGopi_etal_AdvSpRes_Sep2021.pdf Restricted Access | 1.56 MB | Adobe PDF | View/Open Request a copy |
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