A5027177362- Groundwater and Isotope Geochemistry
- Geology and Paleoclimatology Research
- Cryospheric studies and observations
- Climate change and permafrost
- Isotope Analysis in Ecology
- Geochemistry and Elemental Analysis
- Methane Hydrates and Related Phenomena
- Mine drainage and remediation techniques
- Paleontology and Stratigraphy of Fossils
- Groundwater flow and contamination studies
- Indigenous Studies and Ecology
- Microbial Community Ecology and Physiology
- Interdisciplinary Research and Collaboration
- Arctic and Antarctic ice dynamics
- Clay minerals and soil interactions
- Arctic and Russian Policy Studies
- Groundwater and Watershed Analysis
- Geological Studies and Exploration
- Climate Change Communication and Perception
- Soil Carbon and Nitrogen Dynamics
- Silicon Effects in Agriculture
- Karst Systems and Hydrogeology
- Radioactivity and Radon Measurements
- Heavy metals in environment
- Lichen and fungal ecology
University of Cambridge
2017-2021
Norconsult (Norway)
2019
Sandvik (Norway)
2019
University of St Andrews
2014-2016
ETH Zurich
2010-2013
Board of the Swiss Federal Institutes of Technology
2013
Soils are the product of a complex suite chemical, biological, and physical processes. In spite importance soils for society sustaining life on earth, our knowledge soil formation rates influence biological activity mineral weathering geochemical cycles is still limited. this paper we provide description Damma Glacier Critical Zone Observatory present first synthesis multidisciplinary studies 150‐yr chronosequence. The aim research was to improve understanding ecosystem development barren...
Abstract The Circumpolar North has been changing rapidly within the last decades, and socioeconomic systems of Eurasian Arctic Siberia in particular have displayed most dramatic changes. Here, anthropogenic drivers environmental change such as migration industrialization are added to climate-induced changes natural environment permafrost thawing increased frequency extreme events. Understanding adapting both types important local indigenous peoples for wider global community due...
Permafrost in the Arctic is decreasing extent and depth of seasonally thawed layer, active increasing. Increased exposure to water increasing fluxes organic inorganic solutes with potential impacts for global carbon cycle downstream ecosystems. Understanding relationship between solute release layer will be critical modelling environmental impact, especially inaccessible regions where there a lack data. In this study, we focus on isotopes lithium (Li) uranium (U) track two...
Abstract The stable carbon isotopic composition of dissolved organic matter ( δ 13 C‐DOC) reveals information about its source and extent biological processing. Here we report the lowest C‐DOC values (−43.8‰) measured to date in surface waters. streams were located High Arctic, a region currently experiencing rapid changes climate cycling. Based on widespread occurrence methane cycling permafrost regions detection pmoA gene, proxy for aerobic methanotrophs, conclude that low are due...
Magnesium and lithium stable isotope ratios (dMg dLi) have shown promise as tools to elucidate biogeochemical processes both at catchment scales in deciphering global climate processes. Nevertheless the controls on riverine Mg Li are often difficult determine a myriad of factors can cause fractionation from bulk rock values such secondary mineral formation preferential weathering isotopically distinct phases. Quantifying relative contribution carbonate silicate minerals dissolved load...
Abstract The Association of Polar Early Career Scientists (APECS) is an important legacy the International Year (IPY). APECS continues to foster engagement in education, outreach and communication (EOC) activities relating polar regions provide training for early career researchers (ECRs). We highlight opportunities training, leadership skills development, such as annual Weeks Antarctica Day celebrations. Participation EOC actively contributes development by enabling ECRs develop valuable...
Abstract. The identification of sediment sources to the ocean is a prerequisite using marine cores extract information on past climate and circulation. Sr Nd isotopes are classical tools with which trace source provenance. Despite considerable interest in Arctic Ocean, circum-Arctic regions poorly characterised terms their isotopic compositions. In this study we present isotope data from Paleogene Central Basin sediments Svalbard, including first published stream suspended Svalbard. exhibit...
Microbial eukaryotes are increasingly being recognised for their role in global biogeochemical cycles, yet very few studies have focussed on distribution high-latitude stream sediments, an important habitat which influences water nutrient chemistry. In this study, we present the first comparison of microbial from two different polar habitats by determining abundance and taxonomic affiliation 18S rRNA gene fragments recovered four sediment samples Svalbard: a glaciated catchment unglaciated...
Abstract. The identification of sediment sources to the ocean is a pre-requisite using cores extract information on past climate and circulation. Sr Nd isotopes are classical tools with which trace source provenance. Yet, despite considerable interest in Arctic Ocean, circum-Arctic regions poorly characterised terms their isotopic compositions. In this study we present isotope data from Paleogene Central Basin sediments Svalbard, including first published river Svalbard. bulk exhibit...