Midlatitude SF occurrence differences over two European Digisonde stations

Krishnendu Sekhar Paul; Haris Haralambous; David Altadill; Antoni Segarra; Víctor Navas-Portella; Víctor de Paula

doi:10.1109/IGARSS55030.2025.11243712

Midlatitude SF occurrence differences over two European Digisonde stations

Krishnendu Sekhar Paul
, Haris Haralambous
, David Altadill
, Antoni Segarra
, Víctor Navas-Portella
, Víctor de Paula

Research output: Indexed journal article › Conference article › peer-review

Abstract

The present study examines the diurnal and seasonal variations in nighttime midlatitude spread-F (SF) occurrence over Roquetes and Nicosia during 2014, 2016, and 2020 to explore longitudinal variability over the European area. The significant differences in SF occurrence between these stations are observed and are more pronounced with decreasing solar activity. This variability is attributed to UA-NPD, TIDs, and NW-SE electrodynamic coupling between the Es and F layers. RSF dominates SF occurrence, driven by Es layer instabilities coupled with the F layer. SF occurrence peaks in summer with a secondary maximum in winter at both locations.

Original language	English
Pages (from-to)	4590-4594
Number of pages	5
Journal	International Geoscience and Remote Sensing Symposium (IGARSS)
DOIs	https://doi.org/10.1109/IGARSS55030.2025.11243712
Publication status	Published - 2025
Event	2025 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2025 - Brisbane, Australia Duration: 3 Aug 2025 → 8 Aug 2025

Keywords

FSF. RSF
longitude variability
Midlatitude SF

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10.1109/IGARSS55030.2025.11243712

Cite this

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title = "Midlatitude SF occurrence differences over two European Digisonde stations",

abstract = "The present study examines the diurnal and seasonal variations in nighttime midlatitude spread-F (SF) occurrence over Roquetes and Nicosia during 2014, 2016, and 2020 to explore longitudinal variability over the European area. The significant differences in SF occurrence between these stations are observed and are more pronounced with decreasing solar activity. This variability is attributed to UA-NPD, TIDs, and NW-SE electrodynamic coupling between the Es and F layers. RSF dominates SF occurrence, driven by Es layer instabilities coupled with the F layer. SF occurrence peaks in summer with a secondary maximum in winter at both locations.",

keywords = "FSF. RSF, longitude variability, Midlatitude SF",

author = "Paul, \{Krishnendu Sekhar\} and Haris Haralambous and David Altadill and Antoni Segarra and V{\'i}ctor Navas-Portella and \{de Paula\}, V{\'i}ctor",

note = "Publisher Copyright: {\textcopyright} 2025 IEEE.; 2025 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2025 ; Conference date: 03-08-2025 Through 08-08-2025",

year = "2025",

doi = "10.1109/IGARSS55030.2025.11243712",

language = "English",

pages = "4590--4594",

journal = "International Geoscience and Remote Sensing Symposium (IGARSS) ",

issn = "2153-6996",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

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TY - JOUR

T1 - Midlatitude SF occurrence differences over two European Digisonde stations

AU - Paul, Krishnendu Sekhar

AU - Haralambous, Haris

AU - Altadill, David

AU - Segarra, Antoni

AU - Navas-Portella, Víctor

AU - de Paula, Víctor

PY - 2025

Y1 - 2025

N2 - The present study examines the diurnal and seasonal variations in nighttime midlatitude spread-F (SF) occurrence over Roquetes and Nicosia during 2014, 2016, and 2020 to explore longitudinal variability over the European area. The significant differences in SF occurrence between these stations are observed and are more pronounced with decreasing solar activity. This variability is attributed to UA-NPD, TIDs, and NW-SE electrodynamic coupling between the Es and F layers. RSF dominates SF occurrence, driven by Es layer instabilities coupled with the F layer. SF occurrence peaks in summer with a secondary maximum in winter at both locations.

AB - The present study examines the diurnal and seasonal variations in nighttime midlatitude spread-F (SF) occurrence over Roquetes and Nicosia during 2014, 2016, and 2020 to explore longitudinal variability over the European area. The significant differences in SF occurrence between these stations are observed and are more pronounced with decreasing solar activity. This variability is attributed to UA-NPD, TIDs, and NW-SE electrodynamic coupling between the Es and F layers. RSF dominates SF occurrence, driven by Es layer instabilities coupled with the F layer. SF occurrence peaks in summer with a secondary maximum in winter at both locations.

KW - FSF. RSF

KW - longitude variability

KW - Midlatitude SF

UR - https://www.scopus.com/pages/publications/105034142412

U2 - 10.1109/IGARSS55030.2025.11243712

DO - 10.1109/IGARSS55030.2025.11243712

M3 - Conference article

AN - SCOPUS:105034142412

SN - 2153-6996

SP - 4590

EP - 4594

JO - International Geoscience and Remote Sensing Symposium (IGARSS)

JF - International Geoscience and Remote Sensing Symposium (IGARSS)

T2 - 2025 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2025

Y2 - 3 August 2025 through 8 August 2025

ER -

Midlatitude SF occurrence differences over two European Digisonde stations

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Keywords

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