University of Bremen

Oxygen minimum zones in the Indian Ocean and their response to changes in the Indian Ocean meridional circulation

Abstract. The Oxygen Minimum Zones (OMZs) in the northern Indian Ocean (i.e., the Arabian Sea and the Bay of Bengal) are among the most intense OMZs in the world's oceans. While there has been no clear evidence of a significant change in the Bay of Bengal OMZ (BoB OMZ), the Arabi...

Persistent influence of the North Atlantic Oscillation on Late Holocene hydroclimate in southwestern Greenland

Abstract Understanding how global climate forcing shapes regional hydroclimate on decadal to millennial timescales is critical for predicting the response of continental ice sheets to future warming. Because instrumental observations capture only a short interval, longer-term per...

A compilation of global bio-optical in situ data for ocean-colour satellite applications – version four

Abstract. A global in situ dataset for validation of satellite products from the ESA Ocean Colour Climate Change Initiative (OC-CCI) is presented. This version of the compilation, with data starting in 1996, extends to 2025, which is important for the validation of recent algorit...

Vaccinations during pregnancy in Germany between 2004 and 2022: a claims data analysis

Abstract Data on vaccinations during pregnancy are lacking in Germany. We aimed to assess the proportion of pregnancies with any vaccination over a 19-year period. Using health claims covering approximately 20% of the German population, we included pregnancies beginning between 2...

Data-driven equation discovery of a sea ice albedo parametrisation

Abstract. In many sea ice models, a single-category, zero layer thermodynamic scheme is employed, in which sea ice albedo is prescribed based on surface types depending on snow cover, surface temperature, or sea ice thickness. The Parkinson and Washington parametrisation (PW79) i...

Extended service catalogue (NFDI4Earth Milestone MS3.1.3)

NFDI4Earth cooperates with re3data to ensure that repository information remains accurate, up to date, and comprehensive, as it is one of the primary sources of repository metadata for the NFDI4Earth Service Catalogue. This is an ongoing process, and, as in previous years, this w...

The Global Supply Chain Resilience Paradox as an Ethical Dilemma: Trade‐offs, Tensions, and Multilevel Strategies in Times of Crisis and Disruption

ABSTRACT This research examines the resilience paradox in global supply chains, exploring how trade‐offs between economic and social‐ecological resilience escalate into managerial dilemmas under high environmental uncertainty. Using an abductive theory extension approach, we anal...

The power of one or the strength of two: the role of co-brands as enablers of feedback effects in category extensions

Purpose This paper aims to compare non-co-branded and co-branded extension strategies in relation to the feedback effect of category extensions on the existing brand, with a particular focus on different levels of customer identification with the existing brand. Design/methodolog...

Gaussian process regression for optimizing L-DED processing parameters in AlSi10Mg additive manufacturing

Abstract This work presents an experimental workflow coupled with statistical tools to optimize L-DED processing parameters to build defect-free AlSi10Mg multilayer parts. Experimental steps included the quantitative evaluation of single beads, single layers, and multilayers to d...

A high-resolution perspective on climate drivers of lake stratification and phototrophic community dynamics in Late Glacial Central Europe

Abstract. Predicting the trajectory of aquatic deoxygenation under global warming requires a mechanistic understanding of lacustrine responses to rapid climate shifts. We investigated how climate-driven changes in catchment vegetation and local iron-rich lithology regulated lake...