Results 101 to 110 of about 83,673 (292)

Including Harvested Grain Biogenic CO2 to Address a Critical Flaw in Climate Accounting

Australian Journal of Agricultural and Resource Economics, EarlyView.
ABSTRACT The international climate accounting system excludes both the biogenic CO2 sequestered in harvested crops and the biogenic CO2 emissions that occur when grain is digested or burned as biofuel. Despite being described in the literature as a critical flaw in climate accounting all parties within the United Nations Framework Convention on Climate
Richard S. Gray
wiley   +1 more source

Large‐scale hydro‐climatology of the terrestrial Arctic drainage system [PDF]

, 2002
The large‐scale hydro‐climatology of the terrestrial Arctic drainage system is examined, focusing on the period 1960 onward. Special attention is paid to the Ob, Yenisey, Lena, and Mackenzie watersheds, which provide the bulk of freshwater discharge to ...
Bromwich, David H., Clark, Martyn P., Etringer, Andrew J., Lammers, Richard B., Serreze, Mark C., Zhang, Tingjun   +5 more
core   +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, EarlyView.
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

Refining the timing of Middle Pleistocene (MIS 12 to MIS 6) ice advances into northern central Europe: sedimentological analysis and single‐grain luminescence dating of glaciotectonic complexes and tunnel‐valley fills

Boreas, EarlyView.
We summarize the current state of knowledge on the age of the Middle Pleistocene ice advances into northern central Europe and provide 25 new single‐grain feldspar luminescence ages of Elsterian and Saalian glacigenic sediments to constrain the age of the ice advances and their tentative correlation with marine isotope stages/substages.
Niklas von Soest, Neda Rahimzadeh, Debra Colarossi, Falko Malis, Tobias Lauer, Wera Sander‐Beuermann, Yvonne Spychala, Christian Brandes, Runa Fälber, Sumiko Tsukamoto, Jutta Winsemann   +10 more
wiley   +1 more source

Tunnel lining studies II [PDF]

, 1980
In the CRREL tunnel (Fig. B1, B2), sublimation is extremely apparent, but because of the tunnels limited usage it poses no significant problems. However, in an operating mine with forced air ventilation and continuously operating machinery, the problems ...
Johansen, N.I. and Chalich, P.
core  

Late Holocene moisture variability in Arctic Alaska from chitin δ18O

Boreas, EarlyView.
Amplified warming in the Arctic has resulted in reduced sea‐ice extent, which can impact regional climate dynamics. Elucidating past moisture variability in response to changing temperatures and sea‐ice conditions can offer insight into how anthropogenic climate change may impact Arctic areas such as the Alaskan North Slope in the future. We contribute
Briana A. Edgerton, Melissa L. Chipman
wiley   +1 more source

Evaluating of ground surface freeze–thaw and the interrelationship with vegetation cover on the Qinghai-Xizang Plateau

Geoderma
The annual frequency of ground surface freeze–thaw (AFGSFT) on the Qinghai-Xizang Plateau (QXP) is one of the most prominent features of the high plateau ground surface processes.
Xianglong Li, Xue Yang, Ze Zhang, Jinbang Zhai, Xiangxi Meng   +4 more
doaj   +1 more source

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

Fisheries Management and Ecology, EarlyView.
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

Analysis of snow reclamation efficiency of land

Мелиорация и гидротехника
Purpose: to develop a new criterion for assessing the thermal efficiency of snow reclamation using snow cover compaction and to assess the winter reclamation efficiency to increase the moisture capacity of snow cover. Materials and methods.
Aleksandr F. Galkin, Mikhail N. Zheleznyak, Aleksandr F. Zhirkov, Nikolay A. Plotnikov   +3 more
doaj   +1 more source

FOUR YEARS OF UNMANNED AERIAL SYSTEM IMAGERY REVEALS VEGETATION CHANGE IN A SUB-ARCTIC MIRE DUE TO PERMAFROST THAW [PDF]

, 2018
Warming trends in sub-arctic regions have resulted in thawing of permafrost which in turn induces change in vegetation across peatlands both in areal extent and composition. Collapse of palsas (i.e.
DelGreco, Jessica
core   +1 more source