Long‐Term Trends in the Upper Atmosphere Using the Incoherent Scatter Radar Observations Over Arecibo

Dharmalingam, Selvaraj; Sulzer, M. P.; Zhang, Shun‐Rong; Brum, C. G.

doi:10.1029/2022ja031049

Cited by 3 publications

(1 citation statement)

References 41 publications

(165 reference statements)

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“…However, several studies have indicated that the lower atmospheric gravity waves (GWs) can also influence thermospheric temperatures [Oliver et al, 2013;Lastovica et al, 2006b]. Several other studies related to climatological and long term-term trends have been performed from Arecibo [Brum et al, 2012;Santos et al, 2011;Tepley et al, 2011, Selvaraj et al, 2022. Worth mentioning is the significance of GWs propagation in the weather forecast models that currently use reanalysis data.…”

Section: Figure 2 Arecibo Sodium Resonance Lidar Illustrating High Re...mentioning

confidence: 99%

Characterizing the variability and structures in the coupled/complex ionosphere-atmosphere system

Raizada,

Brum,

Urbina

et al. 2023

Bulletin of the AAS

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This paper highlights the significance of Arecibo Observatory, geomagnetically a midlatitude while geographically a low latitude site with unique aeronomical consequences. Its unequaled location in terms of its proximity to Equatorial Ionization Anomaly (EIA), the conjugate point of South Atlantic Magnetic Anomaly (SAMA), cannot be debated and offers a bridge between equatorial and mid-latitudes. Major Points. Atmospheric-Ionospheric variability is still not characterized thoroughly. There are several drivers, but their quantification requires sampling using preferably high-resolution, highly sensitive instruments and satellite data sets. Such efforts provide coverage in lat/long (satellite), time, and altitude at a particular location (Ground-based instrumentation -GB). o GB sites can be extremely useful in delineating the influences of several drivers that cannot be easily captured by the satellite due to their motion, however providing an accurate local picture.  The use of existing infrastructure in terms of ground-based instruments that are in the path of ICON/GOLD satellite missions is without a doubt a valuable and cost-effective approach.o In this regard, Arecibo Observatory plays a significant role that houses several GB instruments and has a unique location (geographically a low latitude but geomagnetically a mid-latitude).  New discoveries can be enabled by using highly sensitive instruments capable of detecting features in the under-sampled regions of the atmosphere (100 -200 km). Regular observations of such features provide new insights into dynamical coupling processes.  The complexities associated with the "Cross-scale" coupling can be best understood by implementing a multi-instrument observational approach that probes different parts of the atmospheric spectrum. Some methodologies that promise new scientific outcomes are:1 Combination of optical and radio (passive and active) observations, and; 2 Using high-resolution range-resolved observations with other instrumentation that provide horizontal coverage is required for regional/global coupling processes. It is important to mention that the research efforts from this white paper will help maintain and develop a workforce in stem in general that is critical for the future of our society.

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Section: Figure 2 Arecibo Sodium Resonance Lidar Illustrating High Re...mentioning

confidence: 99%

Characterizing the variability and structures in the coupled/complex ionosphere-atmosphere system

Raizada,

Brum,

Urbina

et al. 2023

Bulletin of the AAS

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A review of global long-term changes in the mesosphere, thermosphere and ionosphere: A starting point for inclusion in (semi-) empirical models

Cnossen,

Emmert,

Garcia

et al. 2024

Advances in Space Research

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Metastable Helium Lidar for Thermosphere and Lower Exosphere Measurements: Instrument Description and Initial Results

Zhao,

Liu,

Xue

et al. 2024

Space Weather

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In this work, we present a metastable helium lidar system for the measurements of metastable helium He(23S) density in the thermosphere and lower exosphere. This lidar system consists of a high power 1,083 nm pulsed laser, a 1 m aperture laser beam expander, six 1 m aperture receiving telescopes and a superconducting nanowire single‐photon detector (SNSPD). This system realizes metastable helium density detection up to 1,000 km. Daily rapid variation of metastable helium density within several hours was measured with a height resolution of 50 km for the first time. It demonstrates the capability of ground‐based lidar for continuous height‐resolved detection of the atmospheric metastable helium in the height range of 200–1,000 km. This is a promising tool to help study the coupling of neutral and ionized atmosphere in this height range and further providing observation basis for space weather prediction.

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Long‐Term Trends in the Upper Atmosphere Using the Incoherent Scatter Radar Observations Over Arecibo

Abstract: The increasing concentration of anthropogenic greenhouse gases (GHGs) leads to global warming in the lower atmosphere but can cool the upper atmosphere (

Cited by 3 publications

References 41 publications

Characterizing the variability and structures in the coupled/complex ionosphere-atmosphere system

Characterizing the variability and structures in the coupled/complex ionosphere-atmosphere system

A review of global long-term changes in the mesosphere, thermosphere and ionosphere: A starting point for inclusion in (semi-) empirical models

Metastable Helium Lidar for Thermosphere and Lower Exosphere Measurements: Instrument Description and Initial Results

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