scholarly journals Temporal and spatial dependence of a yearlong record of sound propagation from the Canada Basin to the Chukchi Shelf

2020 ◽  
Vol 148 (3) ◽  
pp. 1663-1680
Author(s):  
Megan S. Ballard ◽  
Mohsen Badiey ◽  
Jason D. Sagers ◽  
John A. Colosi ◽  
Altan Turgut ◽  
...  
Keyword(s):  
Spatial Dependence ◽  
Sound Propagation ◽  
Canada Basin ◽  
Temporal And Spatial ◽  
Chukchi Shelf

scholarly journals Temporal and spatial dependence of a yearlong record of sound propagation from the Canada Basin to the Chukchi Shelf

2019 ◽  
Vol 145 (3) ◽  
pp. 1803-1803
Author(s):  
Megan S. Ballard ◽  
Jason D. Sagers ◽  
Mohsen Badiey ◽  
John A. Colosi ◽  
Altan Turgut ◽  
...  
Keyword(s):  
Spatial Dependence ◽  
Sound Propagation ◽  
Canada Basin ◽  
Temporal And Spatial ◽  
Chukchi Shelf

A year-long record of low-frequency, long-range, ducted sound propagation from the Canada Basin to the Chukchi Shelf

2018 ◽  
Vol 144 (3) ◽  
pp. 1666-1666
Author(s):  
Megan S. Ballard ◽  
Jason D. Sagers ◽  
Mohsen Badiey ◽  
John A. Colosi ◽  
Altan Turgut ◽  
...  
Keyword(s):  
Long Range ◽  
Sound Propagation ◽  
Low Frequency ◽  
Canada Basin ◽  
Chukchi Shelf

Temporal and spatial dependence of hydrodynamic correlations: Simulation and experiment

1995 ◽  
Vol 52 (6) ◽  
pp. 6550-6572 ◽  
Author(s):  
Anthony J. C. Ladd ◽  
Hu Gang ◽  
J. X. Zhu ◽  
D. A. Weitz
Keyword(s):  
Spatial Dependence ◽  
Simulation And Experiment ◽  
Temporal And Spatial

scholarly journals TEMPORAL AND SPATIAL DEPENDENCE OF INTERREGIONAL RISK SHARING: EVIDENCE FROM RUSSIA

2019 ◽  
pp. 1-23
Author(s):  
Jarko Fidrmuc ◽  
Moritz Degler
Keyword(s):  
Spatial Dependence ◽  
Risk Sharing ◽  
Fixed Effects ◽  
Dynamic Properties ◽  
Spatial Models ◽  
Estimation Methods ◽  
Time Dynamic ◽  
Temporal And Spatial ◽  
Consumption Risk ◽  
Difference Gmm

We present an analysis of interregional consumption risk sharing in Russia between 1999 and 2009 using novel estimation methods. In addition to standard fixed-effects panel estimations, we use system and difference GMM estimators to reflect time dynamic properties and possible endogeneity between output and consumption. Furthermore, we apply spatial models that control for spatial dependence across regions. The results show that regional consumption deviations from the national average are highly persistent in time and space. Nevertheless, the regional consumption risk sharing in Russia is relatively high with 70%–90% of idiosyncratic risk being smoothed. Finally, fiscal policy and the degree of financial development appear to contribute to the consumption smoothing.

scholarly journals Temporal and Spatial Dependence of Adaptation on Ganglion Cells

2012 ◽  
Vol 16 (2) ◽  
Author(s):  
Aakash Amin ◽  
Reza Moazzezi ◽  
Frank Werblin
Keyword(s):  
Spatial Dependence ◽  
Ganglion Cells ◽  
Temporal And Spatial

scholarly journals Spatial Patterns of Macromolecular Composition of Phytoplankton in the Arctic Ocean

Water ◽  
2021 ◽  
Vol 13 (18) ◽  
pp. 2495
Author(s):  
Keyseok Choe ◽  
Misun Yun ◽  
Sanghoon Park ◽  
Eunjin Yang ◽  
Jinyoung Jung ◽  
...  
Keyword(s):  
Arctic Ocean ◽  
Environmental Changes ◽  
Trophic Levels ◽  
Canada Basin ◽  
The Arctic ◽  
Food Material ◽  
The Arctic Ocean ◽  
Biochemical Compositions ◽  
Chukchi Shelf ◽  
Macromolecular Composition

The macromolecular concentrations and compositions of phytoplankton are crucial for the growth or nutritional structure of higher trophic levels through the food web in the ecosystem. To understand variations in macromolecular contents of phytoplankton, we investigated the macromolecular components of phytoplankton and analyzed their spatial pattern on the Chukchi Shelf and the Canada Basin. The carbohydrate (CHO) concentrations on the Chukchi Shelf and the Canada Basin were 50.4–480.8 μg L−1 and 35.2–90.1 μg L−1, whereas the lipids (LIP) concentrations were 23.7–330.5 μg L−1 and 11.7–65.6 μg L−1, respectively. The protein (PRT) concentrations were 25.3–258.5 μg L−1 on the Chukchi Shelf and 2.4–35.1 μg L−1 in the Canada Basin. CHO were the predominant macromolecules, accounting for 42.6% on the Chukchi Shelf and 60.5% in the Canada Basin. LIP and PRT contributed to 29.7% and 27.7% of total macromolecular composition on the Chukchi Shelf and 30.8% and 8.7% in the Canada Basin, respectively. Low PRT concentration and composition in the Canada Basin might be a result from the severe nutrient-deficient conditions during phytoplankton growth. The calculated food material concentrations were 307.8 and 98.9 μg L−1, and the average calorie contents of phytoplankton were 1.9 and 0.6 kcal m−3 for the Chukchi Shelf and the Canada Basin, respectively, which indicates the phytoplankton on the Chukchi Shelf could provide the large quantity of food material and high calories to the higher trophic levels. Overall, our results highlight that the biochemical compositions of phytoplankton are considerably different in the regions of the Arctic Ocean. More studies on the changes in the biochemical compositions of phytoplankton are still required under future environmental changes.

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