Airglow observation is a very effective method to investigate plasma bubbles, and can obtain their horizontal structure. In this study, the image processing was used process airglow data, including enhancement, azimuth correction, projection, clear products of equatorial bubbles (EPBs) were obtained. Based on optical data imager in Hainan, we investigated main features EPBs, statistically analy...

Plasma density irregularities in the equatorial ionosphere are thought to cause distortions of L-band Synthetic Aperture Radar (SAR) images, which have been observed recent years, but origin image distortion has not yet clearly identified experimentally. We report on first simultaneous observation plasma bubbles (EPBs) by ALOS-2/PALSAR-2 satellite and ground 630-nm airglow imager northern Brazi...

This contribution is the first of a two-part investigation into an unseasonal post-sunset equatorial F-region irregularity (EFI) event over the Southeast Asian region on the evening of 28 July 2014. Ground-based GPS scintillation data, space-based GPS radio occultation (RO) data, and ionosonde data show the existence of EFIs shortly after sunset over a region spanning 30° in longitude and 40° i...

What is the neuroanatomical basis for the decline in brain function that occurs during normal aging? Previous postmortem studies have blamed it on a reduction in spine density, though results remain controversial and spine dynamics were not assessed. We used chronic in vivo two-photon imaging of dendritic spines and axonal boutons in somatosensory cortex for up to 1 year in thy1 GFP mice to tes...

*Correspondence: Hermann Lühr, GFZ, German Research Centre for Geosciences, Section 2.3, Earth’s Magnetic Field, Telegrafenberg, 14473 Potsdam, Germany e-mail: [email protected] Equatorial spread-F ionospheric plasma irregularities on the night-side, commonly called equatorial plasma bubbles (EPB), include electron density variations over a wide range of spatial scales. Here we focus on int...

Evidence-based practices (EPBs) are the basis upon which teachers and other service providers are required to design educational program for learners with Autism Spectrum Disorders (ASD). As part of the work with the National Professional Development Center on ASD (NPDC), a process was developed for reviewing the research literature and criteria were established for identifying EBPs. In their r...

In this study, we present a Rate of Total Electron Content Index (ROTI)-aided equatorial plasma bubbles (EPBs) detection method based on Global Navigation Satellite System (GNSS) ionospheric (TEC). This technique seeks the EPBs occurrence time according to ROTI values and then extracts detrended TEC series, which include signals using low-order, partial polynomial fitting strategy. The over Hon...

Plasma density depletions at midlatitudes during geomagnetic storms are often understood in terms of equatorial plasma bubbles (EPBs) due to their morphological similarity. However, our study reports the observations that reveal generation by local sources. During storm on 26 August 2018, Defense Meteorological Satellite Program and Swarm satellites detected Asian sector absence EPBs region. Th...

Abstract The occurrences of the UHF‐band ionospheric scintillation events caused by Equatorial Plasma Bubbles (EPBs) in low‐latitude region depend on many factors. Nowadays, it is also a hard work for researchers to analyze and find out useful precursory signatures generation EPBs from several kinds observations, which necessary build forecasting model base priori knowledge. Many studies have r...