Scientific motivations and future directions of whole atmosphere modeling

Pedatella, Nicholas

doi:10.3389/fspas.2022.957007

Cited by 3 publications

(1 citation statement)

References 66 publications

(62 reference statements)

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“…Atmospheric radio radars, such as medium frequency radars [1,2], meteor radars [3], and MST radars [4], play a significant role in the study of the dynamics and coupling of middle atmosphere and ground weather. They contribute to understanding the physics of atmospheric motion and sudden weather processes, establishing high-precision and high-resolution atmospheric models [5][6][7]. The atmospheric radio radar began to develop towards the trend of multifunctional comprehensive integration.…”

Section: Introductionmentioning

confidence: 99%

Dual-Frequency, Dual-Mode Reconfigurable Digital Atmospheric Radar Receiver Design

Zhang,

Xu,

et al. 2024

Electronics

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A new dual-frequency, dual-mode reconfigurable digital receiver based on Field-Programmable Gate Array (FPGA) dynamic reconfiguration is proposed, which is based on a common hardware platform of high-bandwidth RF front-end, high-speed data acquisition, and real-time signal processing. The receiver adopts the design of dynamically reconfigurable down-conversion, filter extraction, and matched filtering in the digital domain. In this study, we completed the design and development of the digital receiver, experimental platform construction, and field detection test with hardware and software cooperation. The experimental results show that the receiver achieves full digital reception and signal processing for 53.8 MHz stratosphere–troposphere (ST) detection and 35.0 MHz meteor detection and successfully acquired the number of meteors versus time, the meteor trail, and low-altitude atmospheric radial winds. This dual-frequency, dual-mode reconfigurable digital receiver can be applied to new-generation multifunction integrated radar systems such as dual-frequency ST/meteor radars.

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Section: Introductionmentioning

confidence: 99%

Dual-Frequency, Dual-Mode Reconfigurable Digital Atmospheric Radar Receiver Design

Zhang,

Xu,

et al. 2024

Electronics

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Role of internal atmospheric variability in the estimation of ionospheric response to solar and magnetospheric proton precipitation in January 2005

Клименко

Sukhodolov

et al. 2023

Advances in Space Research

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Wave Action Conservation, Eliassen‐Palm Flux and Nonacceleration Conditions Within Atmospheres of Variable Composition

Eckermann

2024

JGR Atmospheres

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The foundational conservation equations of Eliassen and Palm (EP) and Bretherton and Garrett (BG) governing the pseudomomentum and action of waves in geophysical fluids are shown to be approximations that do not hold generally within atmospheres of varying mass composition, such as the Earth's thermosphere and other planetary atmospheres. Standard BG/EP conservation equations assume a fixed connection between mean‐state entropy and pressure that breaks down when composition varies. New entropy‐corrected (EC) forms of these equations are derived that conserve total energy and momentum in atmospheres where composition varies. Three separate and largely independent derivations are presented that all lead to the same EC forms of these equations and their associated diagnostics, such as nonacceleration conditions. Since EC forms present as corrective scaling factors to standard BG/EP equations, existing models and diagnostics are easily generalized. Representative thermospheric calculations reveal that the EC equations remove systematic energy and momentum biases of up to 40% that in turn lead steady conservative waves to grow more rapidly in amplitude with increasing altitude.

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Scientific motivations and future directions of whole atmosphere modeling

Cited by 3 publications

References 66 publications

Dual-Frequency, Dual-Mode Reconfigurable Digital Atmospheric Radar Receiver Design

Dual-Frequency, Dual-Mode Reconfigurable Digital Atmospheric Radar Receiver Design

Role of internal atmospheric variability in the estimation of ionospheric response to solar and magnetospheric proton precipitation in January 2005

Wave Action Conservation, Eliassen‐Palm Flux and Nonacceleration Conditions Within Atmospheres of Variable Composition

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