Results 201 to 210 of about 125,890 (374)

Contrasting Temperature Sensitivity of Boreal Forest Productivity in North America and Eurasia

open access: yesJournal of Geophysical Research: Biogeosciences, Volume 130, Issue 6, June 2025.
Abstract The seasonal amplitude of atmospheric carbon dioxide (CO2) has increased by as much as 50% over the last 6 decades, suggesting changes to the Arctic‐boreal carbon cycle. Some of this increase is due to increasing seasonality of net ecosystem exchange in boreal and arctic ecosystems, although the mechanisms are still uncertain.
D. Muccio, G. Keppel‐Aleks, N. Parazoo
wiley   +1 more source

Pan-Arctic Permafrost Landform and Human-built Infrastructure Feature Detection with Vision Transformers and Location Embeddings [PDF]

open access: yesarXiv
Accurate mapping of permafrost landforms, thaw disturbances, and human-built infrastructure at pan-Arctic scale using sub-meter satellite imagery is increasingly critical. Handling petabyte-scale image data requires high-performance computing and robust feature detection models.
arxiv  

Permafrost and Related Engineering Problems: ABSTRACT

open access: hybrid, 1946
Siemon W. Muller
openalex   +1 more source

Widespread Sensitivity of Grassland Water Use Efficiency to Deep Soil Moisture on the Tibetan Plateau

open access: yesWater Resources Research, Volume 61, Issue 6, June 2025.
Abstract Water use efficiency (WUE, the ratio of gross primary productivity to evapotranspiration (ET)) is a robust indicator of ecosystem response to climate change, with soil moisture serving as a crucial determinant. Soil moisture varies across soil layers due to ET and soil structure, thereby differentially impacting vegetation.
Yang Liu   +5 more
wiley   +1 more source

Seeing China's Invisible Groundwater: Advances and Challenges

open access: yesWater Resources Research, Volume 61, Issue 6, June 2025.
Abstract In 2021, China adopted comprehensive “Groundwater Management Regulations” to address critical groundwater issues, building upon the foundation of a national groundwater monitoring network established by 2020. This commentary reviews the development of China's National Groundwater Monitoring Network, examines its current monitoring capacity ...
Yingying Yao   +6 more
wiley   +1 more source

Permafrost and Rain Influence Summer Hydrologic Flowpaths in Boreal Catchments

open access: yesWater Resources Research, Volume 61, Issue 6, June 2025.
Abstract Flowpaths of water through catchments influence water quality and flow regimes of streams. Depths of dominant flowpaths respond to variation in climate and catchment characteristics, such as topography, vegetation, and soil type. In high‐latitude regions, the depth and spatial extent of permafrost influences catchment hydrology, and thawing ...
Karen L. Jorgenson   +4 more
wiley   +1 more source

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