National Space Science Center

A 256-year daily rainfall record reveals multiscale rainy-season variability and emerging hydroclimatic hazard over northern East Asia

Monsoon rainy seasons shape water supply and flood hazard across northern East Asia, but their long-term variability remains poorly understood because few daily rainfall records extend beyond the instrumental era. Here, we reconstruct rainy-season onset, retreat, and duration fro...

Rotational-Stiffness Sensitivity of a Low-Frequency Aeroelastic Branch in a Wingtip-Connected Modular UAV

This study examines how the rotational stiffness of two wingtip interfaces changes the low-frequency aeroelastic response of a free–free, three-module unmanned aerial vehicle. A finite-element model coupled with doublet-lattice aerodynamics is analyzed using the p–k method. The r...

Fine-Grained Tree Species Classification in Urban Forests via Phenology–Structure Synergistic Fusion of Multi-Source Remote Sensing Data

Urban forest tree species composition and spatial distribution are essential for refined greenspace management, ecosystem-service assessment, and forest-health monitoring. High-resolution imagery captures crown texture and spatial boundaries, multi-temporal NDVI reflects phenolog...

High-fidelity spatiotemporal evolution of CO₂ storage in saline aquifers: A physics-synergized deep learning framework for CO₂ plume prediction and super-resolution reconstruction

Abstract Precise forecasting of spatiotemporal CO₂ plume evolution in deep saline aquifers is imperative for ensuring the long-term integrity and efficacy of carbon capture and storage. However, a persistent dichotomy exists in current modeling paradigms: high-fidelity numerical...

Design and on-orbit verification of an integrated multiplexing modulator for laser communication and VDES payloads in satellite communication systems

Satellite missions increasingly require integrated communication architectures capable of supporting heterogeneous payloads and high-efficiency onboard data processing. In this paper, an integrated multiplexing modulator designed for satellite communication systems supporting bot...

JW-FD: A 15-Year Multimodal Dataset for Solar Flare Forecasting

Solar flares drive severe space weather hazards, and forecasting their occurrence remains a central challenge for both heliophysics and operational space weather services. Data-driven methods require long-horizon datasets in which images, magnetic features, and flare labels are c...

Magnetic Reconnection Driven by the Impact of a Magnetosheath High‐Speed Jet

Abstract High‐speed jets (HSJs) are transient structures in the magnetosheath characterized by enhanced dynamic pressure. While recent studies report that HSJs trigger magnetic reconnection at the magnetopause, whether they can directly drive reconnection within the magnetosheath...

Robust feasible-domain modeling for resource-constrained spaceborne heterogeneous high-performance computing

A spaceborne heterogeneous computer must finish sensing, preprocessing, artificial-intelligence inference, compression, and data return within one mission window. Processor throughput alone is an incomplete guide because task placement simultaneously determines computation, trans...

Deep Learning for Single-Frame Infrared Small and Dim Target Detection: A Paradigm-Oriented Review with Cross-Architecture Benchmarking

Single-frame infrared small and dim target detection underpins military early warning and space surveillance. However, existing review literature lacks a classification system based on architectural paradigms and standardized cross-architecture benchmarking. This paper systematic...

Unraveling the dual interaction patterns of land use intensity on carbon balance: spatial heterogeneity and drivers in a transitional region of China

Abstract Under China’s “Dual Carbon” goals, accurate assessment of regional carbon balance is of critical importance. Land use acts as a core factor governing carbon balance. However, the differentiated effects of land use intensity (LUI)—a comprehensive indicator quantifying hum...

Classifications of Substorms With MLT Patterns of SMU‐SML Indices Based on Convection Properties

Abstract During substorms, magnetospheric convection and magnetotail current sheet disturbances are two critical processes, both driving ionospheric electrojets. Dusk‐side SMU and dawn‐side SML (SuperMAG Electrojet indices) enhancements reflect two‐cell convection. Using this rel...

Kelvin–Helmholtz vortices at the magnetopause during northward IMF: multi-satellite observations of energy transport and plasma redistribution

The Kelvin–Helmholtz (KH) instability is a fundamental plasma process in many astrophysical environments; its vortices facilitate solar wind energy transport and plasma mixing. We investigate the energy flux density distribution and fluctuations of a typical KH vortex event obser...

Electro-mechanical response of TSV-RDL interconnects under electron irradiation

Purpose Through-silicon-via (TSV) and redistribution-layer (RDL) interconnects are essential for high-density three-dimensional (3D)/2.5D integration in aerospace microsystems. However, their reliability under energetic electron irradiation remains insufficiently understood, part...