Bassem Jalali

Impacts of Landscape Pattern Changes in Hangzhou Bay Intertidal Wetlands on Regional Nitrogen Removal Under Multiple Stressors

Zhihao Xu, Y Li, Xue Wu, Xin Zhao et autres

Hangzhou Bay has long experienced excessive nitrogen loading coupled with limited hydrodynamic exchange, leading to some of the highest nitrogen concentrations in China’s coastal waters. As critical land-sea ecotones, intertidal wetlands play a crucial role in mitigating nitrogen pollution across the bay. …

cn (code pays fourni par la source)

Persistence of a wind-driven fire regime in Mediterranean France over the past 8200 years revealed by a marine paleoecological record

Marion Genet, Anne‐Laure Daniau, Florent Mouillot, Bérangère Leys et autres

Data on paleofire activity in southeastern France during the Holocene are still lacking thus limiting our capability to anticipate fire regime shifts under climate change. Here, we present a 8.2 ky-long high-resolution time-series of microscopic charcoal (microcharcoal) particles from a marine sediment …

fr, cn (code pays fourni par la source)

The Bering Sea shelf as a sink for terrigenous organic carbon: Insights from sediment geochemistry

Song Zhang, Zhongqiao Li, Bassem Jalali, Youcheng Bai et autres

cn (code pays fourni par la source)

Accelerated export of terrestrial organic carbon to the Chukchi Sea since pre-industrial times

Bassem Jalali, Marie‐Alexandrine Sicre, Jian Ren, Zhongqiao Li et autres

Abstract. The on-going global warming is causing rapid changes in the carbon cycle of the Arctic. Yet the response of the Arctic to these environmental changes are not fully understood. In this study, we investigate bulk organic parameters (TOC, TN, δ13Corg, δ15N, …

cn, fr (code pays fourni par la source)

Supplementary material to "Accelerated export of terrestrial organic carbon to the Chukchi Sea since pre-industrial times"

Bassem Jalali, Marie‐Alexandrine Sicre, Jian Ren, Zhongqiao Li et autres

Table S1: Summary of bulk parameters, TERR-alkanes and ratios calculated form alkanes from our five sediment cores.TOC from all cores and δ13C, TN, δ15N and C/N from cores R1 and C07 are from Su et al. ( 2023), Bai et al. (2024) …

cn, fr (code pays fourni par la source)

Distribution and Sources of Organic Matter in Surface Sediments of the Karachi Coast, Pakistan

Sanober Kahkashan, Zhongqiao Li, Bassem Jalali, Xinhong Wang et autres

cn, pk, Rwanda (code pays fourni par la source)

Reconstruction of sea ice variability in the Chukchi Sea during the last three centuries based on biomarker proxies

Bassem Jalali, Marie‐Alexandrine Sicre, Jian Ren, Vincent Klein et autres

Abstract In this study, we reconstruct three-century of sea ice cover history in the Chukchi Sea from the downcore profile of total organic carbon (TOC) and biomarker proxies, namely the Ice Proxy with 25 carbon atoms (IP25), the di- and tri-unsaturated highly …

cn, fr, ru (code pays fourni par la source)

Fire variability in the southeastern France over the past 8500 years

Marion Genet, Anne‐Laure Daniau, Maria‐Angela Bassetti, Bassem Jalali et autres

The Mediterranean region is strongly impacted by fires at present day. Projected warming scenarios suggest increase fire risk in the Mediterranean region (Pechony et Shindell, 2010). However, models based on modern-day statistical relationships do not consider interactions between climate, vegetation, and fire. …

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Centennial-scale variability of sea-ice cover in the Chukchi Sea since AD 1850 based on biomarker reconstruction

Youcheng Bai, Marie‐Alexandrine Sicre, Jian Ren, Bassem Jalali et autres

Abstract Paleo-climate proxy records documenting sea-ice extent are important sources of information to assess the time of emergence and magnitude of on-going changes in the Arctic Ocean and better predict future climate and environmental evolution in that region. In this study, a …

cn, fr (code pays fourni par la source)

HBIs and Sterols in Surface Sediments Across the East Siberian Sea: Implications for Palaeo Sea‐Ice Reconstructions

Liang Su, Jian Ren, Marie‐Alexandrine Sicre, Youcheng Bai et autres

Abstract Highly branched isoprenoids (HBIs) in marine sediments have emerged as promising semi‐quantitative proxies to reconstruct seasonal sea ice in polar oceans. In this work, we examine the distribution of sympagic HBIs (IP25 and HBI‐II), pelagic phytoplankton biomarkers (brassicasterol, dinosterol and HBI‐III) …

cn, fr, ru (code pays fourni par la source)

Trends and centennial-scale variability of surface water temperatures in the North Atlantic during the Holocene

Marie‐Alexandrine Sicre, Bassem Jalali, Jón Eiríksson, Karen-Luise Knudsen et autres

Two sediment cores retrieved off North Iceland (western Nordic Seas) and on the eastern flank of Reykjanes Ridge (Iceland Basin) were analyzed to generate high-resolution alkenone-derived sea surface temperature (SST) records to investigate North Atlantic Ocean circulation changes during the Holocene. Early …

fr, cn, is, dk (code pays fourni par la source)

The spatiotemporal pattern of the Bond 4 event (5.2 ka) : a global data-based review

Bassem Jalali, Marie‐Alexandrine Sicre

The Bond 4 event starting at 7000 yr BP and culminating around 5200 yr BP corresponds to the largest (in magnitude and duration) invasion of drifting ice across the subpolar North Atlantic during the Holocene (Bond et al., 2001). While several studies …

fr, cn (code pays fourni par la source)