Northwest Institute of Eco-Environment and Resources

The Corrosion Behavior and Mechanism of X80 Pipeline Steel in Saline Soil Influenced by Freezing Induced Phase Transition

ABSTRACT Sulfate saline soil in cold and arid regions accelerates the deterioration of buried pipelines, but the roles of salt crystallization and ice formation in steel corrosion remain unclear. In this study, the corrosion behavior of X80 steel in sulfate saline soil was invest...

Measurement report: Impacts of thermodynamic and dynamic processes on the vertical distribution of carbonaceous aerosols: lessons from in-situ observations at the eastern foothills of Liupan Mountains, Loess Plateau

Abstract. The vertical distribution of carbonaceous aerosols critically influences planetary boundary layer structure and regional climate. However, high-resolution vertical data remain scarce over the Chinese Loess Plateau. To address this gap, coordinated observations of carbon...

The 2024 cascading glacial lake outburst flood in the Thame Valley of Everest region, Nepal: process, impacts and implications

Abstract. On the afternoon of 16 August 2024, a catastrophic flood devastated Thame Village in the Everest region of Nepal. This event resulted from a cascading glacial lake outburst flood (GLOF), where the outburst of an upstream glacial lake triggered the failure of a downstrea...

Reconfiguration of rural social-spatial network by mobile social platform and its impact on apple farmer livelihoods: a case study of Li County, China

Abstract Digital transformation is profoundly reshaping rural socio-economic landscapes and livelihood trajectories worldwide. However, the spatially differentiated mechanisms through which specific mobile social platforms reconfigure farmers’ social-spatial networks and the cons...

A Subtle Atmospheric Shift Is Redefining Winter Hydrology on the Tibetan Plateau

Abstract Winter climate over the Tibetan Plateau has long been characterized by cold conditions that preserve snow and regulate downstream water supply through delayed melt. Here we show that this buffering function is weakening in the Sanjiangyuan region due to a shift in winter...

Experimental study of the startup and heat-transfer performance of a novel two-phase closed thermosyphon with an internal phase-separation structure

Two-phase closed thermosyphons (TPCTs) are widely used as active cooling devices in permafrost engineering. Countercurrent transport of rising gas and returning liquid through a shared flow channel can impede working-medium circulation and constrain heat-transfer performance. Thi...

Soil Hydrothermal Response to Seasonal Freeze–Thaw Processes in Low-Water-Content Sandy Gravel Deposits

Seasonal freeze–thaw processes affect soil hydrothermal conditions in high-altitude valleys, yet evaluations based only on air temperature or maximum freezing depth may overlook the distinction between surface-connected freezing and delayed thawing within the soil profile. Meteor...

Need-responsive accessibility supports equitable sustainable development and reshapes migration as evolving human needs

Realizing the Sustainable Development Goals’ commitment to “leave no one behind” requires accessibility that responds to evolving human needs, yet prevailing accessibility assessments remain static and sector-specific, overlooking hierarchical need evolution and behavioral feedba...

Contrasting seasonal roles of external forcing and internal variability in East Asian temperature

How to reliably separate external forcing (EXF) and internal variability (IV) components of regional temperature variation is of critical importance in East Asia. We implement here an EOF-based semi-empirical framework to avoid spurious teleconnections often present with conventi...

Planetary Boundary Layer Height on the Northern Mount Qomolangma Region Retrieved From Wind LiDAR Observations

Abstract A coherent Doppler wind LiDAR (Wind3D 6000) has been operating in the northern Mount Qomolangma region since 2023. We retrieved planetary boundary layer height (PBLH) from LiDAR observations collected from October 2023 to September 2025 using a hybrid algorithm combining...

Effects of rainfall on permafrost degradation in alpine desert regions of the Tibetan Plateau

Rainfall is increasing across the Tibetan Plateau, yet its effects on permafrost in alpine desert regions remain poorly understood. Using a validated one-dimensional land-surface model for a representative site, we conducted idealized experiments to isolate the effects of summer...

Early-mid Holocene Ross Sea extreme wave heights reflect sea ice retreat and ocean-atmosphere interactions

Abstract Antarctic coastal systems preserve valuable records of postglacial environmental change and extreme storm events. On Inexpressible Island, Ross Sea, we integrated geomorphic mapping, boulder measurements, exposure dating, radiocarbon constraints, and hydrodynamic analysi...