Wszystkie pola: acoustic Doppler current profiler - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Diel Vertical Migration observed by acoustic doppler current profiler
Autorzy:: Schmidt, B.
Szczucka, J.
Powiązania:: https://bibliotekanauki.pl/articles/331981.pdf
Data publikacji:: 2010
Wydawca:: Polskie Towarzystwo Akustyczne
Opis:: This paper presents the results of continual 17-week ADCP measurements applied to investigate the migratory behaviour of the Baltic animals. The velocities of vertical migration are determined in different ways and the results are compared. Strict correlation of the moments when downward or upward migration starts with sunrise and sunset times, is confirmed. Additionally, vertical and horizontal movements of water content are examined. Even though quite slow in comparison with horizontal flow, vertical migration exists independently of other factors.
Źródło:: Hydroacoustics; 2010, 13; 235-242
1642-1817
Pojawia się w:: Hydroacoustics
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Bioacoustic measurements by use of acoustic doppler current profiler
Autorzy:: Szczucka, J.
Schmidt, B.
Powiązania:: https://bibliotekanauki.pl/articles/332129.pdf
Data publikacji:: 2004
Wydawca:: Polskie Towarzystwo Akustyczne
Opis:: Nowadays, each oceanographic vessel is equipped with an Acoustic Doppler Current Profiler. Its task is to determine the value and direction of the vector of water current. It measures the Doppler shift in the frequency of the acoustic wave backscattered by neutrally floating particles suspended in the sea water. A by-product of such measurement is proportional to backscattering strength SV. Starting with the pilot work by Flagg and Smith [3], an ADCP becomes a useful tool for the investigations of the distribution and migration of zooplankton. It enables current and zooplankton abundance to be obtained simultaneously. The presented paper is an attempt to exploit the data collected in a routine way by the ADCP mounted on r/v ‘Oceania’ to characterise the biological aggregations, and especially to estimate the distribution of zooplankton and to observe their diel vertical migration.
Źródło:: Hydroacoustics; 2004, 7; 209-216
1642-1817
Pojawia się w:: Hydroacoustics
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: ADCP-referenced geostrophic velocity and transport in the West Spitsbergen current
Autorzy:: Osinski, R.
Wieczorek, P.
Beszczynska-Moller, A.
Goszczko, I.
Powiązania:: https://bibliotekanauki.pl/articles/48340.pdf
Data publikacji:: 2003
Wydawca:: Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:: Arctic circulation
Atlantic water
acoustic Doppler current profiler
geostrophic flow
West Spitsbergen current
Źródło:: Oceanologia; 2003, 45, 3
0078-3234
Pojawia się w:: Oceanologia
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: The misalignment angle in vessel-mounted ADCP
Autorzy:: Osinski, R.
Powiązania:: https://bibliotekanauki.pl/articles/49054.pdf
Data publikacji:: 2000
Wydawca:: Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:: cosinusoidal function
zooplankton
ship
acoustic Doppler current profiler
echo
acoustic pulse
depth
calibration
sediment
Opis:: A description of the misalignment angle and the consequences if it occurs is given. It is shown that because of gyrocompass errors, the misalignment angle error α has to be computed for each cruise. A simple method of calibrating the acoustic Doppler current profiler (ADCP) mounted on a vessel has been devised by fitting the cosinusoidal function. This is a post-processing method, suitable for calibrating previously collected data. Nevertheless, because of ADCP’s constructional peculiarities, the procedure must be repeated for each cruise.
Źródło:: Oceanologia; 2000, 42, 3
0078-3234
Pojawia się w:: Oceanologia
Dostawca treści:: Biblioteka Nauki

Artykuł

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