Temat: biomass estimation - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: SOLAP GIS in maritime research
Autorzy:: Drypczewski, K.
Stepnowski, A.
Powiązania:: https://bibliotekanauki.pl/articles/332276.pdf
Data publikacji:: 2016
Wydawca:: Polskie Towarzystwo Akustyczne
Tematy:: spatio-temporal GIS
multidimensional data
fish biomass estimation
AIS
tracking vessel movement
Opis:: Multidimensional Geographical Information System is a system especially designed to acquire, distribute, analyze and visualize complicated spatio-temporal data. Modern Geographical Information System technology can provide easy-to-use, near real-time solutions to many problems from different areas of research. In the article, authors summarize recent works on Spatial Online Analytical Processing (SOLAP) and multidimensional Geographical Information System (GIS), discuss its capabilities and data structures used in spatio-temporal datasets, and propose its possible applications in maritime research.
Źródło:: Hydroacoustics; 2016, 19; 93-100
1642-1817
Pojawia się w:: Hydroacoustics
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Modelling of acoustic backscattering by southern Baltic herring
Autorzy:: Idczak, J.
Gorska, N.
Powiązania:: https://bibliotekanauki.pl/articles/331977.pdf
Data publikacji:: 2016
Wydawca:: Polskie Towarzystwo Akustyczne
Tematy:: acoustic biomass estimation
Baltic herring
target strength
modelling approach
X-ray images
Opis:: Assessment of Baltic herring abundance can be carried out using acoustic techniques. Analysis of the relationship between the Baltic herring individual target strength, TS, and the total fish length, L, important for the acoustic assessment, showed the relationship to be dependent on the location of the study area. This finding motivated a detailed analysis of the relationship for the herring occurring in the southern Baltic ICES subdivisions 24, 25, and 26, in which Poland is responsible for the acoustic herring abundance assessment. The paper addresses the numerical analysis of the backscattering properties of the southern Baltic herring. The modelling approach used to study the backscattering was based on the Modal Series-Based Deformed Cylinder Model approximation. Details of the individual herring swimbladders were taken into account. Morphometric data necessary for the analysis was obtained from X-ray images of herring from the Polish coastal zone (ICES subdivision 26).
Źródło:: Hydroacoustics; 2016, 19; 145-152
1642-1817
Pojawia się w:: Hydroacoustics
Dostawca treści:: Biblioteka Nauki

Artykuł

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