Jens Meyerjürgens

Carl von Ossietzky University of Oldenburg · Department of Chemistry and Biology of the Marine Environment (ICBM)

The thermodynamic responses of the upper ocean to interacting tropical cyclones (TCs) were investigated using in-situ observations, remote sensing products and numerical models. The interactions between TC Seroja and TC Odette in the southeastern Indian Ocean occurred between 6 April and 9 April 2021 (centered at 20°S, 110°E ± 5° each direction), a...

Essential climate variables (ECVs) are physical, chemical, or biological parameters supporting the characterization of the climate system. The oceanic ECVs temperature and salinity have been defined for the sea surface (upper 1 mm) and bulk water (upper 2 m). Direct observation and sampling of the sea surface from ships and buoys are limited due to...

The study analyzes the impact of various wave-induced processes on relative dispersion and diffusivities in the North Sea using OpenDrift, a Lagrangian particle-drift model driven by a fully coupled NEMO-WAM model. The coupled model parameterizations include sea state-dependent momentum flux, energy flux, and wave-induced mixing. The study demonstr...

A dataset of 85 Lagrangian surface drifter trajectories covering the central North Sea area and the Skagerrak from 2017–2021 of 17 deployments is presented. The data have been quality-controlled, uniformly structured, and assimilated in a standard NetCDF format (10.1594/PANGAEA.963166, Meyerjürgens et al., 2023a). Using appropriate methods presente...

A dataset of 85 Lagrangian surface drifter trajectories covering the central North Sea area and the Skagerrak from 2017–2021 of 17 deployments is presented. The data have been quality controlled, uniformly structured and assimilated in a standard NetCDF format. Using appropriate methods presented in detail here, surface currents were calculated fro...

Major biogeographic features of the microbial seascape in the oceans have been established and their underlying ecological mechanisms in the (sub)tropical oceans and the Pacific Ocean identified. However, we still lack a unifying understanding of how prokaryotic communities and biogeographic patterns are affected by large-scale current systems in d...

We used low-cost surface drifters to provide a qualitative assessment of water and properties connectivity between the BC and neighboring areas. Though originally designed for coastal studies in marginal seas, the drifters proved reliable under the rough weather and cold climate of the open SW Atlantic. Our preliminary results suggest that the BB i...

The issue of marine plastic pollution has been extensively studied by various scientific disciplines in recent decades due to its global threat. However, owing to its complexity, it requires an interdisciplinary approach to develop effective management strategies. The multidisciplinary scientific approach presented here focuses on understanding the...

The Beagle Channel (BC) is a subantarctic passage connecting the Pacific and Atlantic oceans at latitude ~55°S. Along its tortuous path, the channel defines particular environments of prominent ecological value that are under study from a variety of scientific fields, while the main physical features that form the basis for these ecosystems are sti...

This correction relates to the original article https://www.researchgate.net/publication/357840168_Lagrangian_Methods_for_Visualizing_and_Assessing_Frontal_Dynamics_of_Floating_Marine_Litter_with_a_Focus_on_Tidal_Basins and comprises the open access rights of the publication. // Lagrangian methods are a common tool in physical oceanography. Due to...

This chapter provides a concise overview of the entire monograph by assembling summaries of 10 individual chapters starting with a global review of large-scale, persistent nutrient fronts of the World Ocean followed by regional chapters on the Arctic Ocean, North Atlantic, Baltic Sea, Kuroshio Current, and the Yellow Sea, a global review of CDOM dy...

The accumulation of marine litter on coastal seabeds is influenced by various anthropogenic and environmental factors. To identify litter accumulation areas on the seafloor, it is necessary to understand the interaction of these parameters. This study analyses the seafloor litter occurrence in the southeastern North Sea, based on samples collected...

Coastal observatories are key to improve the understanding of processes within the coastal area and their interactions with regional and global environmental changes. The land-sea transition zone is an essential area that allows research on unique scientific questions under anthropogenic and natural influences. Amid the Wadden Sea UNESCO world natu...

The Pacific Ocean constitutes about half of the global oceans and thus microbial processes in this ocean have a large impact on global elemental cycles. Despite several intensely studied regions large areas are still greatly understudied regarding microbial activities, organic matter cycling and biogeography. Refined information about these feature...

Lagrangian methods are a common tool in physical oceanography. Due to the quasi-Lagrangian characteristics of floating marine litter (FML) and the chemical substances released from it, Lagrangian methods can be used to study this environmental threat. Most of the existing investigations of this topic have been carried out in the deep ocean, where b...

We examine the relative dispersion and the contribution of tides on the relative diffusivities of surface drifters in the North Sea. The drifters are released in two clusters, yielding 43 pairs, in the vicinity of a tidal mixing front in the German Bight, which is located in the southeastern area of the North Sea. Both clusters indicate decreasing...

Floating marine litter (FML) is dispersed in the world oceans and poses one of the major threats to marine ecosystems. Lagrangian observations are a fundamental key to gain deeper insights into complex transport processes of FML at the ocean's surface. A number of studies have focused on global, large scale transport modelling of FML by using Lagra...

Observations using two kinds of drifters were carried out in the southern North Sea aiming to study the propagation pathways of marine litter. One drifter, which was driven by the upper layer currents, was equipped with global positioning system. Further 1,600 wooden drifters, driven mostly by wind and Stokes drift were released offshore in German...

Observations using two kinds of drifters were carried out in the southern North Sea aiming to study the propagation pathways of marine litter. One drifter, which was driven by the upper layer currents, was equipped with Global Positioning System. Further 1600 wooden drifters, mostly driven by wind and Stokes drift, were released offshore in German...

Lagrangian observations are important for the understanding of complex transport patterns of floating macroscopic litter items at the ocean surface. Satellite-tracked drifters and numerical models are an important source of information relevant to transport processes as well as distribution patterns of floating marine litter (FML) on a regional to...

Cruise MSM42 with RV MARIA S. MERIAN dealt with investigating the recent changes in the water mass structure and the oceanic circulation system in a narrow region focusing on the vicinity of Flemish Pass and Flemish Cap located at the western edge of the subpolar North Atlantic. Several densely spaced hydrographic sections were carried out across m...