Zobrazeno 1 - 10
of 61
pro vyhledávání: '"K. A. Emeis"'
Autor:
S. Tian, B. Gaye, J. Tang, Y. Luo, W. Li, N. Lahajnar, K. Dähnke, T. Sanders, T. Xiong, W. Zhai, K.-C. Emeis
Publikováno v:
Biogeosciences, Vol 19, Pp 2397-2415 (2022)
The Bohai Sea (BHS) is a semi-closed marginal sea impacted by one of the most populated areas of China. The supply of nutrients, markedly that of reactive nitrogen, via fluvial and atmospheric transport has strongly increased in parallel with the gro
Externí odkaz:
https://doaj.org/article/8f1d12c8c1d44770b61cf1ebd136843a
Publikováno v:
Biogeosciences, Vol 19, Pp 807-830 (2022)
Amino acids (AAs) mainly bound in proteins are major constituents of living biomass and non-living organic material in the oceanic particulate and dissolved organic matter pool. Uptake and cycling by heterotrophic organisms lead to characteristic cha
Externí odkaz:
https://doaj.org/article/ccfe6c82940449ec9fc03daeaf53fbc0
Publikováno v:
Climate of the Past, Vol 17, Pp 1735-1749 (2021)
The Indian summer monsoon (ISM) rainfall is the lifeline for people living on the Indian subcontinent today and was possibly the driver of the rise and fall of early agricultural societies in the past. The intensity and position of the ISM have shift
Externí odkaz:
https://doaj.org/article/c203159c045141c3b6b26749cbfe7d6a
Publikováno v:
Biogeosciences, Vol 17, Pp 4223-4245 (2020)
The coastal ocean is strongly affected by ocean acidification because of its shallow water depths, low volume, and the closeness to terrestrial dynamics. Earlier observations of dissolved inorganic carbon (DIC) and total alkalinity (TA) in the southe
Externí odkaz:
https://doaj.org/article/efbca6cb3afe480b9bff113fa6ad81e2
Autor:
A. Bratek, J. E. E. van Beusekom, A. Neumann, T. Sanders, J. Friedrich, K.-C. Emeis, K. Dähnke
Publikováno v:
Biogeosciences, Vol 17, Pp 2839-2851 (2020)
In this study, we investigate the role of sedimentary N cycling in the southern North Sea. We present a budget of ammonification, nitrification and sedimentary NO3- consumption and denitrification in contrasting sediment types of the German Bight (so
Externí odkaz:
https://doaj.org/article/9403d5c9755445b5b79d67ceeac048be
Publikováno v:
Earth System Dynamics, Vol 10, Pp 847-858 (2019)
The westerlies and trade winds over the South Atlantic and Indian Ocean are important drivers of the regional oceanography around southern Africa, including features such as the Agulhas Current, the Agulhas leakage, and the Benguela upwelling. Agulha
Externí odkaz:
https://doaj.org/article/305f91e5c9614ffb92682d574acffdf8
Autor:
N. C. Harms, N. Lahajnar, B. Gaye, T. Rixen, K. Dähnke, M. Ankele, U. Schwarz-Schampera, K.-C. Emeis
Publikováno v:
Biogeosciences, Vol 16, Pp 2715-2732 (2019)
The Indian Ocean subtropical gyre (IOSG) is one of five extensive subtropical gyres in the world's ocean. In contrast to those of the Atlantic and Pacific oceans, the IOSG has been sparsely studied. We investigate the water mass distributions based o
Externí odkaz:
https://doaj.org/article/e4d24e316ea54143a4a9da85daa017c7
Publikováno v:
Biogeosciences, Vol 16, Pp 485-503 (2019)
Data obtained from long-term sediment trap experiments in the Indian Ocean in conjunction with satellite observations illustrate the influence of primary production and the ballast effect on organic carbon flux into the deep sea. They suggest that pr
Externí odkaz:
https://doaj.org/article/c8f963735b6a41eb82f4486382ffec6e
Autor:
B. Gaye, A. Böll, J. Segschneider, N. Burdanowitz, K.-C. Emeis, V. Ramaswamy, N. Lahajnar, A. Lückge, T. Rixen
Publikováno v:
Biogeosciences, Vol 15, Pp 507-527 (2018)
At present, the Arabian Sea has a permanent oxygen minimum zone (OMZ) at water depths between about 100 and 1200 m. Active denitrification in the upper part of the OMZ is recorded by enhanced δ15N values in the sediments. Sediment cores show a δ
Externí odkaz:
https://doaj.org/article/74be55152ef44d4a857cd7aa4ec100a8
Publikováno v:
Ocean Science, Vol 12, Iss 3, Pp 807-823 (2016)
The eastern boundary upwelling systems, located in the subtropics at the eastern boundary of the Atlantic and Pacific oceans and mainly driven by the trade winds, are the major coastal upwelling regions. Previous studies have suggested that the inten
Externí odkaz:
https://doaj.org/article/67da9c845a774f23ac5cde498cfe1403