Results 61 to 70 of about 283,051 (325)

Direct determination of the air-sea CO₂ gas transfer velocity in Arctic sea-ice regions [PDF]

, 2017
The Arctic Ocean is an important sink for atmospheric CO₂. The impact of decreasing sea-ice extent and expanding marginal ice zones on Arctic air-sea CO₂ exchange depends on the rate of gas transfer in the presence of sea ice.
Anderson, LG, Brooks, IM, Crill, PM, Geibel, MC, Humborg, C, Prytherch, J, Salisbury, DJ, Thornton, BF, Tjernström, M   +8 more
core   +1 more source

Impact of the ice thickness distribution discretization on the sea ice concentration variability in the NEMO3.6-LIM3 global ocean–sea ice model [PDF]

Geoscientific Model Development, 2019
Abstract. This study assesses the impact of different sea ice thickness distribution (ITD) configurations on the sea ice concentration (SIC) variability in ocean-standalone NEMO3.6-LIM3 simulations. Three ITD configurations with different numbers of sea ice thickness categories and boundaries are evaluated against three different satellite products ...
Moreno Chamarro, Eduardo, Ortega Montilla, Pablo, Massonnet, François   +2 more
openaire   +8 more sources

Improving short-term sea ice concentration forecasts using deep learning [PDF]

The Cryosphere
Reliable short-term sea ice forecasts are needed to support maritime operations in polar regions. While sea ice forecasts produced by physically based models still have limited accuracy, statistical post-processing techniques can be applied to reduce ...
C. Palerme, T. Lavergne, J. Rusin, A. Melsom, J. Brajard, A. F. Kvanum, A. F. Kvanum, A. Macdonald Sørensen, L. Bertino, M. Müller, M. Müller   +10 more
doaj   +1 more source

Holocene carbon-cycle dynamics based on CO2 trapped in ice at Taylor Dome, Antarctica [PDF]

, 1999
A high-resolution ice-core record of atmospheric CO2 concentration over the Holocene epoch shows that the global carbon cycle has not been in steady state during the past 11,000 years.
Blunier, T., Deck, B., Fischer, Hubertus, Indermühle, A., Joos, F., Mastroianni, D., Meyer, R., Smith, J., Stauffer, B., Stocker, T. F., Tschumi, J., Wahlen, M.   +11 more
core   +1 more source

Assimilation of satellite swaths versus daily means of sea ice concentration in a regional coupled ocean–sea ice model

The Cryosphere, 2023
Abstract. Operational forecasting systems routinely assimilate daily means of sea ice concentration (SIC) from microwave radiometers in order to improve the accuracy of the forecasts. However, the temporal and spatial averaging of the individual satellite swaths into daily means of SIC entails two main drawbacks: (i) the spatial resolution of the ...
Durán Moro, Marina, Sperrevik, Ann Kristin, Lavergne, Thomas, Bertino, Laurent, Gusdal, Yvonne, Iversen, Silje Christine, Rusin, Jozef   +6 more
openaire   +6 more sources

The anabolic steroid stanozolol is a potent inhibitor of human MutT homolog 1

FEBS Letters, EarlyView.
MutT homolog 1 (MTH1) is a member of the NUDIX superfamily of enzymes and is an anticancer drug target. We show that stanozolol (Stz), an anabolic steroid, is an unexpected nanomolar inhibitor of MTH1. The X‐ray crystal structure of the human MTH1–Stz complex reveals a unique binding scaffold that could be utilized for future inhibitor development ...
Emma Scaletti Hutchinson, Robert Gustafsson Westergren, Ingrid Almlöf, Ann‐Sofie Jemth, Martin Scobie, Ulrika Warpman Berglund, Thomas Helleday, Pål Stenmark   +7 more
wiley   +1 more source

Assessment of Antarctic Sea Ice Cover in CMIP6 Prediction with Comparison to AMSR2 during 2015–2021

Remote Sensing, 2023
A comprehensive assessment of Antarctic sea ice cover prediction is conducted for twelve CMIP6 models under the scenario of SSP2-4.5, with a comparison to the observed data from the Advanced Microwave Scanning Radiometer 2 (AMSR2) during 2015–2021.
Siqi Li, Yu Zhang, Changsheng Chen, Yiran Zhang, Danya Xu, Song Hu   +5 more
doaj   +1 more source

Thermostable neutral metalloprotease from Geobacillus sp. EA1 does not share thermolysin's preference for substrates with leucine at the P1′ position

FEBS Letters, EarlyView.
Knowing how proteases recognise preferred substrates facilitates matching proteases to applications. The S1′ pocket of protease EA1 directs cleavage to the N‐terminal side of hydrophobic residues, particularly leucine. The S1′ pocket of thermolysin differs from EA's at only one position (leucine in place of phenylalanine), which decreases cleavage ...
Grant R. Broomfield, Torsten Kleffmann, David J. Saul, Sigurd M. Wilbanks   +3 more
wiley   +1 more source

Arctic Ice Ocean Prediction System: evaluating sea-ice forecasts during Xuelong's first trans-Arctic Passage in summer 2017

Journal of Glaciology, 2019
In an effort to improve the reliability of Arctic sea-ice predictions, an ensemble-based Arctic Ice Ocean Prediction System (ArcIOPS) has been developed to meet operational demands.
Longjiang Mu, Xi Liang, Qinghua Yang, Jiping Liu, Fei Zheng   +4 more
doaj   +1 more source

Bayesian Sea Ice Detection With the ERS Scatterometer and Sea Ice Backscatter Model at C-Band [PDF]

, 2018
This paper describes the adaptation of a Bayesian sea ice detection algorithm for the scatterometer on-board the European Remote Sensing (ERS) satellites (ERS-1 and ERS-2).
Belmonte Rivas, M, Otosaka, I, Stoffelen, A   +2 more
core   +1 more source