Results 41 to 50 of about 55,741 (254)

The Last Deglaciation in the Southern Ocean [PDF]

Paleoceanography, 1989
The isotopic and micropaleontological deglacial records of three deep‐sea cores from 44°S to 55°S have been dated by accelerator mass spectrometry. The available records did not allow accurate dating of the initiation of the deglaciation. By 13,000 years B.P., sea surface temperatures reached values similar to the present values.
Labracherie, Monique, Labeyrie, Laurent, Duprat, Josette, Bard, Edouard, Arnold, Maurice, Pichon, Jean-Jacques, Duplessy, Jean-Claude   +6 more
openaire   +1 more source

Current Systems in the Southern Ocean [PDF]

, 2001
The Southern Ocean contains a large, wind-driven current, the Antarctic Circumpolar Current, which carries approximately 170×106 m3 of water eastward around Antarctica within multiple filamented jets. To the south of the Antarctic Circumpolar Current, within the Antarctic marginal seas, the Weddell Gyre transports water cyclonically (clockwise) around ...
Gille, Sarah T, Gordon, AL
openaire   +4 more sources

A Global Methane Observation System to Reduce Uncertainty for Anthropogenic and Natural Sources and Sinks for Detecting and Attributing Climate Feedbacks

Advanced Science, EarlyView.
Conceptual illustration of a Global Ecosystem Methane Observing System (GEM‐OS) integrating satellites, aircraft, atmospheric networks, and ecosystem measurements to quantify methane emissions from anthropogenic and natural sources. The multi‐scale observing framework improves source attribution, reduces uncertainty in regional methane budgets, and ...
P. Ciais, S. Peng, J. Chang, F. Li, Q. Zhu, K. Yuan, G. Hugelius, H. Li, Y. Cai, F. Chevallier, K. Tibrewal, E. A. Kort, K. Arndt, J. Watts, B. Buma, N. Besic, P. I. Palmer, H. Cadillo‐Quiroz, E. Euskirchen, M. J. Gondwe, A. Hoyt, R. Jackson, S. Malone, D. Monteverde, S. Natali, M. Ramonet, C. Rey‐Sanchez, L. B. Sagang, E. A. G. Schuur, R. Vargas, R. Varner, Z. Zhang, B. Poulter   +32 more
wiley   +1 more source

Competing impacts of tropical Pacific and Atlantic on Southern Ocean inter-decadal variability

npj Climate and Atmospheric Science
The observed Southern Ocean sea surface temperature (SST) has experienced prominent inter-decadal variability nearly in phase with the Inter-decadal Pacific Oscillation (IPO), but less associated with the Atlantic Multidecadal Variability (AMV ...
Shuai-Lei Yao, Renguang Wu, Jing-Jia Luo, Wen Zhou   +3 more
doaj   +1 more source

Assessing improvements in global ocean pCO₂ machine learning reconstructions with Southern Ocean autonomous sampling [PDF]

Biogeosciences
The Southern Ocean plays an important role in the exchange of carbon between the atmosphere and oceans and is a critical region for the ocean uptake of anthropogenic CO2.
T. H. Heimdal, G. A. McKinley, A. J. Sutton, A. R. Fay, L. Gloege   +4 more
doaj   +1 more source

Drop‐Location‐Insensitive Droplet‐Based Electricity Generator Using Polydimethylsiloxane Slippery Covalently Attached Liquid Coatings

Advanced Science, EarlyView.
Drop‐location sensitivity remains a key barrier to practical droplet‐based electricity generators (DEGs). Here, a polydimethylsiloxane slippery covalently attached liquid (PDMS‐SCAL)‐coated interface promotes droplet sliding instead of splitting or bouncing, allowing stable electricity generation from randomly falling raindrops. The resulting PDMS‐SCAL‐
Jung Bin Yang, Donghyeon Yoo, Hideaki Teshima, Donghan Lee, Dongwhi Choi, Dong Rip Kim, Nenad Miljkovic   +6 more
wiley   +1 more source

Pathways and timescales of Southern Ocean hydrothermal iron and manganese transport

Communications Earth & Environment
Scarcity of iron and manganese limits the efficiency of the biological carbon pump over large areas of the Southern Ocean. The importance of hydrothermal vents as a source of these micronutrients to the euphotic zone of the Southern Ocean is debated ...
Antony J. Birchill, Chelsey A. Baker, Neil J. Wyatt, Katsiaryna Pabortsava, Hugh J. Venables, C. Mark Moore, Isobel Turnbull, Angela Milne, Simon J. Ussher, Sophy Oliver, Adrian P. Martin   +10 more
doaj   +1 more source

Gene flow in the Antarctic bivalve Aequiyoldia eightsii (Jay, 1839) suggests a role for the Antarctic Peninsula Coastal Current in larval dispersal

Royal Society Open Science, 2020
The Antarctic Circumpolar Current (ACC) dominates the open-ocean circulation of the Southern Ocean, and both isolates and connects the Southern Ocean biodiversity. However, the impact on biological processes of other Southern Ocean currents is less clear.
Carlos P. Muñoz-Ramírez, David K. A. Barnes, Leyla Cárdenas, Michael P. Meredith, Simon A. Morley, Alejandro Roman-Gonzalez, Chester J. Sands, James Scourse, Antonio Brante   +8 more
doaj   +1 more source

Groundwater Rise Sustains the World's Largest Alpine Water System Under Global Warming

Advanced Science, EarlyView.
Shallow groundwater depth (SGWD) across the non‐permafrost plains of the Qinghai–Xizang Plateau decreased at averagely 0.02 m year−1, adding 31.44 Gt of freshwater storage from 2000 to 2020 and sustaining ∼53 500 km2 of alpine ecosystems. A vadose‐zone capacity of 426.6 Gt reveals these aquifers as promising reservoirs, highlighting groundwater's ...
Jianqing Du, Zhixiang Niu, Yanfen Wang, Shirui Zhou, Youqing Yang, Xiang Wei, Haishan Niu, Yitao Zhang, Anquan Xia, Yali Liu, Yanbin Hao, Kai Xue, Bingfang Wu, Xinquan Zhao, Tandong Yao, Yiyu Chen   +15 more
wiley   +1 more source

Single‐Cell Transcriptomics and Metabolomics Reveal Glutamate Dehydrogenase as a Central Regulator of Nitrogen Metabolic Remodeling During Alkalinity Adaptation in Crustaceans

Advanced Science, EarlyView.
Single‐cell transcriptomics reveals the cellular response of Macrobrachium hainanense to carbonate alkalinity stress. Alkalinity stress impairs branchial ammonia excretion, induces mitochondrial dysfunction, and drives cell‐type‐specific changes in gills and hemocytes.
Yiting Jin, Zhimin Lv, Chao Bian, Qibin Yang, Na Zhou, Jianguang Qin, Shengming Sun   +6 more
wiley   +1 more source