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EN
The seas along the Northern Coast of Papua constitute a region with complex oceanographic conditions as they are situated within the Indo-Pacific warm pool (IPWP). The geographical location in the southern hemisphere induces upwelling during the west monsoon season (December-January-February). Additionally, interannual phenomena such as the El Niño Southern Oscillation (ENSO) can impact the intensity of upwelling in these waters. This study aimed to compare the upwelling intensity in the seas along the Northern Coast of Papua during neutral phases and ENSO phases. The main indicators of upwelling are sea surface temperature (SST) and Ekman mass transport (EMT). The data utilized in this study include SST from GHRSST and surface wind from ASCAT. The data processing employed the monthly composite method with spatiotemporal analysis based on anomaly results derived from monthly climatology. The analysis results reveal that El Niño 2015–2016 led to an increase in upwelling intensity ranging from 1.82 to 4.00 m/s2, while La Niña 2010–2011 resulted in a weakening of upwelling intensity ranging from 4.95 to 6.56 m/s2 in the seas along the Northern Coast of Papua. On the basis of correlation and regression analysis, it can be concluded that offshore EMT significantly influences upwelling anomalies in the southeastern waters, whereas the northwestern waters are more influenced by the shifting IPWP during ENSO.
EN
Manganese nodules, known also as polymetallic nodules, from the Clarion-Clipperton Zone on the Pacific Ocean were examined by the electron microprobe method to determine their chemical and mineralogical compositions. Two different types of layers were distinguished and total metal content was determined. Macroscopic investigations were also described.
PL
Zweryfikowano metodami statystycznymi poprawność predykcji zasobności metali (Cu, Mn, Ni) w złożach konkrecji polimetalicznych na Pacyfiku (strefa Clarion-Clipperton, obszar INTEROCEANMETALU) na podstawie liniowych i nieliniowych modeli regresyjnych wiążących je z zasobnościami konkrecji. Stwierdzono, pełną przydatność prostych liniowych modeli regresji do prognozy zasobności metali przy założeniu, że dysponuje się wiarygodnymi oznaczeniami zasobności konkrecji. Metoda ta może mieć duże znaczenie w najbliższej przyszłości po wdrożeniu metody pośredniego określania zasobności konkrecji na podstawie rejestracji fotograficznej dna pacyficznego.
EN
Correctness of prediction of metals abundance (Cu, Mn, Ni) in deposit of polymetallic nodules (the Pacific Ocean, Clarion-Clipperton zone, the INTEROCEANMETAL exploration area) was verified using statistical methods. The prediction was based on linear and non-linear regression models describing dependences between metals and nodules abundances. Usefulness of simple linear models for predictions was confirmed. This method can be of great importance in the nearest future after implementation of indirect method of defining of nodules abundance based on photographic registration seabed of the Pacific.
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