Results 91 to 100 of about 3,816 (189)

Current Status of Permafrost Degradation

International Journal for Research in Applied Science and Engineering Technology
Abstract: Permafrost, the permanently frozen ground is defined as any type of ground-from soil to sediment to rock- that remains at or below 0° C for at least two consecutive years. At present, permafrost occurs on one quarter of the exposed land surfaces of the earth, but the permafrost extent and its estimate have been changing rapidly. Under warming
openaire   +1 more source

Estimating Baseline Flow Resistance Parameters for Remote Sensing River Discharge (RSQ) From River Morphology Characteristics

JAWRA Journal of the American Water Resources Association, Volume 62, Issue 4, August 2026.
ABSTRACT This study demonstrates that flow resistance in rivers, quantified via calibration of a modified Manning's equation, can inform its estimation from channel hydrometric information available from regional or global datasets for a limited set (N = 14) of rigorously calibrated river reaches in Alaska and with less certainty in a large set (N ...
David M. Bjerklie, Merritt E. Harlan, Ethan J. Shavers, Craig B. Brinkerhoff, Lawrence V. Stanislawski, J. Toby Minear, Robert W. Dudley   +6 more
wiley   +1 more source

Assessing the Vulnerability of an Inuit Archaeological Site in a Changing Periglacial Environment: A Novel Multimethod Geophysical Approach in Arctic Geoarchaeology

Archaeometry, Volume 68, Issue 4, Page 620-632, August 2026.
ABSTRACT With northern regions warming at twice the global rate, assessing the state of archaeological sites in these areas is critically important. In this study, we used a multimethod geophysical approach (ERT, GPR, and EMI) to characterize the current geocryological conditions of an Inuit archaeological site on South Aulatsivik Island (Labrador ...
Rachel Labrie, Dominique Todisco, Najat Bhiry, Cécile Finco, Héloïg Barbel Le Page, Armelle Couillet   +5 more
wiley   +1 more source

Genetic and Ecological Management of Pacific Salmon Fisheries for the 21st Century

Fisheries Management and Ecology, Volume 33, Issue 4, Page 633-645, August 2026.
ABSTRACT Based on ecological adaptation theory, tremendous effort is being spent on measures that are eliminating salmon hatcheries and fishing opportunities with the intention of protecting wild runs deemed to be of particular genetic importance to the survival of the species.
Randall E. Brummett, Ian G. Cowx, Devin M. Bartley   +2 more
wiley   +1 more source

Simulated responses of permafrost distribution to climate change on the Qinghai–Tibet Plateau

Scientific Reports, 2017
Climate warming causes changes in permafrost distribution, which affects the surface energy balance, hydrologic cycle and carbon flux in cold regions.
Qing Lu, Dongsheng Zhao, Shaohong Wu
doaj   +1 more source

Environmental influences on the maximum quantum yield of terrestrial primary production

New Phytologist, Volume 251, Issue 4, Page 1709-1722, August 2026.
Temperature and aridity effects on terrestrial ecosystems' intrinsic quantum yield. Summary Historically, terrestrial biosphere models (TBMs) have assigned the intrinsic (maximum) quantum yield of photosynthesis (ϕ0) a constant value for each plant functional type. However, experimental studies have shown that ϕ0 – when measured on light‐adapted leaves
David Sandoval, Victor Flo, Catherine Morfopoulos, Iain Colin Prentice   +3 more
wiley   +1 more source

Assessment of climate change impacts on buildings, structures and infrastructure in the Russian regions on permafrost

Environmental Research Letters, 2019
Russian regions containing permafrost play an important role in the Russian economy, containing vast reserves of natural resources and hosting large-scale infrastructure to facilitate these resources’ exploitation.
Dmitry A Streletskiy, Luis J Suter, Nikolay I Shiklomanov, Boris N Porfiriev, Dmitry O Eliseev   +4 more
doaj   +1 more source

Permafrost degradation is a legal matter

Quaderns IEE
New topical problems of permafrost degradation are identified in the context of a new sphere of legal regulation, primarily in the Arctic countries, with an emphasis on the legal problems of Russia. The object of research in the article consists of various legal consequences of the said phenomenon, manifested on very sensitive ecosystems, human ...
openaire   +4 more sources

Three‐Fourths of Carbon Emissions From 2023 Record‐Breaking Wildfires in Canada Traced to Soil and Peat Combustion

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract In 2023, wildfires burned vast areas in Canada, emitting large amounts of carbon (C). The area burned by the 2023 wildfires is the largest ever recorded in Canada, but the partitioning of C emissions between aboveground biomass and soil sources remains unknown.
Z. Zhong, C. Ottah, B. M. Rogers, S. Veraverbeke, S. Potter, W. A. Kurz, L. R. Diaz, S. Christensen, A. Gonsamo   +8 more
wiley   +1 more source

Spatiotemporal Evolution Analysis of Surface Deformation on the Beihei Highway Based on Multi-Source Remote Sensing Data

Remote Sensing
Under the interference of climate warming and human engineering activities, the degradation of permafrost causes the frequent occurrence of geological disasters such as uneven foundation settlement and landslides, which brings great challenges to the ...
Wei Shan, Guangchao Xu, Peijie Hou, Helong Du, Yating Du, Ying Guo   +5 more
doaj   +1 more source