Dimension reduction for integrating data series in Bayesian inversion of geostatistical models

2019 ◽  
Vol 33 (7) ◽  
pp. 1327-1344
Author(s):  
Heather Savoy ◽  
Falk Heße
Keyword(s):  
Dimension Reduction ◽  
Bayesian Inversion ◽  
Data Series ◽  
Geostatistical Models

Spatial and temporal dynamics of Pacific capelin Mallotus catervarius in the Gulf of Alaska: implications for ecosystem-based fisheries management

2020 ◽  
Vol 637 ◽  
pp. 117-140 ◽  
Author(s):  
DW McGowan ◽  
ED Goldstein ◽  
ML Arimitsu ◽  
AL Deary ◽  
O Ormseth ◽  
...  
Keyword(s):  
Temporal Dynamics ◽  
Marine Ecosystem ◽  
Gulf Of Alaska ◽  
Data Series ◽  
Limited Information ◽  
Important Species ◽  
Multiple Data ◽  
Spatial And Temporal Dynamics ◽  
Spawning Areas ◽  
Spatio Temporal

Pacific capelin Mallotus catervarius are planktivorous small pelagic fish that serve an intermediate trophic role in marine food webs. Due to the lack of a directed fishery or monitoring of capelin in the Northeast Pacific, limited information is available on their distribution and abundance, and how spatio-temporal fluctuations in capelin density affect their availability as prey. To provide information on life history, spatial patterns, and population dynamics of capelin in the Gulf of Alaska (GOA), we modeled distributions of spawning habitat and larval dispersal, and synthesized spatially indexed data from multiple independent sources from 1996 to 2016. Potential capelin spawning areas were broadly distributed across the GOA. Models of larval drift show the GOA’s advective circulation patterns disperse capelin larvae over the continental shelf and upper slope, indicating potential connections between spawning areas and observed offshore distributions that are influenced by the location and timing of spawning. Spatial overlap in composite distributions of larval and age-1+ fish was used to identify core areas where capelin consistently occur and concentrate. Capelin primarily occupy shelf waters near the Kodiak Archipelago, and are patchily distributed across the GOA shelf and inshore waters. Interannual variations in abundance along with spatio-temporal differences in density indicate that the availability of capelin to predators and monitoring surveys is highly variable in the GOA. We demonstrate that the limitations of individual data series can be compensated for by integrating multiple data sources to monitor fluctuations in distributions and abundance trends of an ecologically important species across a large marine ecosystem.

Dimension Reduction: A Guided Tour

2009 ◽  
Author(s):  
Christopher J. C. Burges
Keyword(s):  
Dimension Reduction ◽  
Guided Tour

The efficiency of the monodirectional economic policy of smaller countries during the globalization and multipolar world

2020 ◽  
Vol 16 (5) ◽  
pp. 929-949
Author(s):  
A.M. Chernysheva
Keyword(s):  
Economic Policy ◽  
Development Strategy ◽  
Systems Approach ◽  
National Development ◽  
Current Phase ◽  
Data Series ◽  
Economic Stability ◽  
The Sustainable Development ◽  
The Republic ◽  
Former Ussr

Subject. After the collapse of the USSR, smaller countries chose different paths in their economic policy during the globalization and the multipolar world. The EU, USA and Russia made a palpable contribution to the economic policy of smaller countries. Some countries of the former USSR failed to find their course, while the others immediately followed their development strategy and stuck to it persistently. Objectives. I examine the economics of the monodirectional strategy of smaller countries of the former USSR. I also evaluate how the countries found their position among different leading countries as points of attraction. The study is based on the assumption that the single direction of the national development and adherence to the same point of attraction will ensure the sustainable development. However, the economic development level depends on the health of a certain economy as a point of attraction. Methods. The study is based on the systems approach, comparative and statistical methods for analyzing macroeconomic data series. Results. I investigated the dynamics of key macroeconomic data in the Republic of Belarus, Latvia and Estonia, such as GDP per capita in current values, unemployment rate and Purchasing Power Index. Given the current phase of globalization and multipolar world, it is crucial for smaller countries to choose a development strategy to follow persistently and achieve proper macroeconomic indicators that depend on the economic stability of counties they treat as their benchmarks. Conclusions and Relevance. I should mention the successful economic policy of Estonia and Latvia, which followed the same course as the other EU countries, as opposed to the Republic of Belarus tending to the policy of the Russian Federation. Nevertheless, the monodirectional development strategy also helps smaller countries ensure their economic stability.

Chesapeake bay watershed land cover data series

Data Series ◽  
10.3133/ds505 ◽  
2010 ◽  
Author(s):  
Frederick M. Irani ◽  
Peter R. Claggett
Keyword(s):  
Land Cover ◽  
Chesapeake Bay ◽  
Data Series ◽  
Chesapeake Bay Watershed ◽  
Land Cover Data
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