Results 121 to 130 of about 125,890 (374)
Rising minimum daily flows in northern Eurasian rivers: A growing influence of groundwater in the high‐latitude hydrologic cycle [PDF]
, 2007 A first analysis of new daily discharge data for 111 northern rivers from 1936–1999 and 1958–1989 finds an overall pattern of increasing minimum daily flows (or “low flows”) throughout Russia.
Lammers, Richard B. +4 more
core +3 more sources
Molecular Ecology Resources, EarlyView.ABSTRACT The condition of ancient marine ecosystems provides context for contemporary biodiversity changes in human‐impacted oceans. Sequencing sedimentary ancient DNA (sedaDNA) is an emerging method for generating high‐resolution biodiversity time‐series data, offering insights into past ecosystems.
Luke E. Holman +8 more
wiley +1 more source
Geophysical Research LettersWe used very high‐resolution satellite images to map the development of retrogressive thaw slumps (RTS) at six sites in the Russian High Arctic for the period 2011 to 2020.
S. Barth +4 more
doaj +1 more source
Лëд и снег, 2015 This study of glacial-cryogenic complexes of Suntar-Khayata Range is a logical continuation of the research started by M.M. Koreysha in 1957–1959. The studied key site is situated in the upstream of the Burgaly River on the northern slope of Mus-Khaya ...
A. A. Galanin +3 more
doaj +1 more source
Iron mineral dissolution releases iron and associated organic carbon during permafrost thaw
Nature Communications, 2020 It has been shown that reactive soil minerals, specifically iron(III) (oxyhydr)oxides, can trap organic carbon in soils overlying intact permafrost, and may limit carbon mobilization and degradation as it is observed in other environments.
M. Patzner +10 more
semanticscholar +1 more source
Molecular Ecology Resources, EarlyView.ABSTRACT In the last three decades, DNA sequencing of ancient animal osteological assemblages has become an important tool complementing standard archaeozoological approaches to reconstruct the history of animal domestication. However, osteological assemblages of key archaeological contexts are not always available or do not necessarily preserve enough
Kuldeep D. More +64 more
wiley +1 more source
Policy implications of warming permafrost [PDF]
Permafrost is perennially frozen ground occurring in about 24% of the exposed land surface in the Northern Hemisphere. The distribution of permafrost is controlled by air temperature and, to a lesser extent, by snow depth, vegetation, orientation to ...
core
Geophysical Applications for Arctic/Subarctic Transportation Planning [PDF]
, 2014 This report describes a series of geophysical surveys conducted in conjunction with geotechnical investigations carried out by the Alaska Department of Transportation and Public Facilities.
Fortier, Richard +5 more
core
Effect of permafrost thaw on CO2 and CH4 exchange in a western Alaska peatland chronosequence [PDF]
, 2014 Permafrost soils store over half of global soil carbon (C), and northern frozen peatlands store about 10% of global permafrost C. With thaw, inundation of high latitude lowland peatlands typically increases the surface-atmosphere flux of methane (CH4), a
Ewing, Stephanie A. +8 more
core +2 more sources
Molecular Ecology Resources, EarlyView.ABSTRACT Numerous specimens stored in natural history collections have been involuntarily preserved together with their associated microbiomes. We propose exploiting century‐old soils occasionally found on the roots of herbarium plants to assess the diversity of ancient soil microbial communities originally associated with these plants.
Gianluca Grasso +7 more
wiley +1 more source