Marius Floriancic

A new dataset on the water quality in Swiss river catchments is now available. CAMELS-CH-Chem incorporates up to 40 water quality parameters for 115 Swiss catchments between 1981 and 2020 💡

👉 www.eawag.ch/en/departmen...

@bafu.admin.ch @thiagovnascimento.bsky.social

The last weeks we spent preparing the AWS for our @cryoscope.bsky.social field campaigns in Ladakh - apologies to my office mates for the mess 🙃 Everything is working & the shipment arrived in India. We are excited to start our field campaign soon, stay tuned for updates! @harshberia.bsky.social

Great start of our @cryoscope.bsky.social & @hyclimm.bsky.social collaboration in the beautiful Dischma Valley in Davos. Looking forward to join forces to explore the runoff generation processes in high Alpine environments together!

❄️ Meet CryoSCOPE!

A 4-year EU-funded research project uniting 19 partners across 8 countries to better understand snow, glacier and permafrost processes - how they respond to climate change, and how these shifts affect downstream hydrological and biogeochemical cycles.

Swiss data quality: augmenting CAMELS-CH with isotopes, water quality, agricultural and atmospheric data - Scientific Data Scientific Data - Swiss data quality: augmenting CAMELS-CH with isotopes, water quality, agricultural and atmospheric data

Happy to share that if you are interested in large sample hydrology datasets and specifically water quality data you can now check our now officially published dataset:

doi.org/10.1038/s415...

Why do trees preferably transpire winter precipitation? 🌳💦 In our latest commentary we argue that it's not a big surprise but the effect of seasonal differences in soil recharge. onlinelibrary.wiley.com/doi/10.1002/... @canopyinclouds.bsky.social @harshberia.bsky.social @scottallenunr.bsky.social

Successful 3-hr stream sampling during a major weekend storm, will be interesting to trace its signatures in streamflow isotopes. We installed a rain sampler and hosted Zuosinan Chen from @unioulu.bsky.social
You can also see @mfhydro.bsky.social hard at work fixing the pipes

@cryoscope.bsky.social

Five years ago we started with first installations and sampling at our WaldLab Forest Experimental Site! 🌲 💧 Thanks to all the amazing people that supported me in the last years, enabled us to do exciting research and to @ethz.ch for celebrating the anniversary with this nice article! 🥳

Horizon Grant for two Environmental Engineers The «WaldLab Forest Experimental Site» on Hönggerberg in Zurich is a key site in the international EU Horizon project CryoSCOPE, which started in February 2025. CryoSCOPE investigates the interplay be...

Excited to start our new EU-Horizon project called "CryoSCOPE" to better understand hydrological partitioning in diverse landscapes with @mfhydro.bsky.social

baug.ethz.ch/en/news-and-...

To what extent do beech 🌳 and spruce 🌲 trees shift their water uptake to deeper layers in dry periods? Can deep roots alone sustain full tree transpiration? Find out out more in Stefanos excellent PhD paper in Tree Physiology, based on root measurements @waldlabor -> doi.org/10.1093/tree...

Link to the session: meetingorganizer.copernicus.org/EGU25/sessio...

We invite contributions on experimental and modelling studies that present methodological developments and applications of isotope tracers to improve our process knowledge of water and nutrient fluxes between the subsurface, plants and the atmosphere, across different scales.

I'm happy to announce that @eurogeosciences.bsky.social session "𝗛𝗦𝟭𝟬.𝟭𝟬 𝗦𝘁𝗮𝗯𝗹𝗲 𝗶𝘀𝗼𝘁𝗼𝗽𝗲𝘀 𝘁𝗼 𝘀𝘁𝘂𝗱𝘆 𝘄𝗮𝘁𝗲𝗿 𝗮𝗻𝗱 𝗻𝘂𝘁𝗿𝗶𝗲𝗻𝘁 𝗱𝘆𝗻𝗮𝗺𝗶𝗰𝘀 𝗶𝗻 𝘁𝗵𝗲 𝘀𝗼𝗶𝗹-𝗽𝗹𝗮𝗻𝘁-𝗮𝘁𝗺𝗼𝘀𝗽𝗵𝗲𝗿𝗲 𝗰𝗼𝗻𝘁𝗶𝗻𝘂𝘂𝗺" organized together with Ginevra Fabiani, Giulia Zuecco, Magali Nehemy & @nat-iso.bsky.social is open for your abstract submissions!

Young and new water fractions in soil and hillslope waters Abstract. The transport processes and corresponding timescales of water's infiltration into and percolation through the shallow subsurface are poorly understood. Here, we characterize the transport of...

Using continuous 3-year soil water isotope sampling in different depths & hillslope locations at "WaldLab" we reveal the mysteries of streamflow generation. Check out our new HESS manuscript: hess.copernicus.org/articles/28/... @usyseth.bsky.social

How much of groundwater seepage & mixing occur around main-river knickpoints? We conducted extensive synoptic sampling, mixing & groundwater modelling to learn more about this in our recent #AGU #GRL publication! So happy to see this paper out: agupubs.onlinelibrary.wiley.com/doi/10.1029/... 🥳

How much of streamflow in Swiss & Austrian Alpine rivers is younger than 1 month? How is this related to catchment characteristics & hydro-climatical variables?

We answered these questions in our recent @eurogeosciences.bsky.social publication together with BOKU

hess.copernicus.org/articles/28/...

This is also a proud supervisor moment for myself, I had the honor to guide Maria from first results in her BSc thesis, through hours of fieldwork & data evaluation to the acceptance of an awesome paper! Very well done Maria, it was a pleasure working with you! 🌲🌳

Quantification of enrichment processes in throughfall and stemflow in a mixed temperate forest Hydrological Processes is an international hydrology journal publishing high-impact, process-oriented manuscripts in all the main areas of hydrology.

To what extent do trees affect nutrient composition of precipitation reaching forest soils? Our recent
publication from WaldLab Zurich led by Maria Grundmann shows seasonal enrichment patterns & we assess potential drivers based on data from 222 rainfall events.
doi.org/10.1002/hyp....

Spent a hot & humid week for fieldwork, discussions and a seminar at NUS Singapore. Great start of our project on runoff generation processes & the role of different vegetation types in tropic urban & semi-urban environments (with Simone Fatichi & his awesome team! 😍)

Last week we had the pleasure to host an international group of students Waldlabor Zürich for the 1st edition of the @ethzurich.bsky.social & EPFL Ecohydrology Summer School! Such an amazing group of people, I really enjoyed showing you around & introduce our latest results and sampling efforts!

Thanks to an @ethzurich.bsky.social Innovedum Fund we were able to update our hydraulic lab equipment -> hands-on weir experiments in mini-flumes, a pipe airflow kit & implement data evaluation in Jupyter Notebooks! A huge effort of all staff involved, but totally worth it! 🌊😍 #teaching

This week another exciting field measurement class took place at Waldlabor. Our friends from Uni Zurich Ilja van Meerveld & @jansei.bsky.social invited their students to learn about the forest water cycle during challenging but hydrologically interesting weather conditions! 💦☔️

it was a pleasure to present these findings @eurogeosciences.bsky.social last week!

Winter precipitation is the major source of summer tree transpiration at our WaldLab Zürich Forest Site! 💦🌳Read more about seasonality signals in soil & xylem waters in our recent Ecohydrology publication: onlinelibrary.wiley.com/doi/full/10....

Happy to share that our litter & deadwood study 🍂💦🍂from WaldLab made it to the list of top downloaded Ecohydrology papers! 🥳 onlinelibrary.wiley.com/doi/10.1002/...

By how much do throughfall & stemflow differ isotopically from incoming precipitation across seasons? New
"WaldLab" publication out in HP showing (relatively small) offsets in forest precipitation isotopes: onlinelibrary.wiley.com/doi/full/10....

Happy to share that we will host a 4-day ETH & EPFL summer school for PhD and MSc students this June (18. - 21.06.) at our "Waldlabor" field site! Apply until April 1st! More information: hyd.ifu.ethz.ch/education/Ec...

WaldLab Forest Experimental Site

Really excited to share our new "WaldLab Experimental Forest Site" webpage: hyd.ifu.ethz.ch/ecohydlab/wa...
You'll find all information about the exciting research, outreach activities & a lot of pictures from fieldwork! Check it out, always looking for collaboration!

How variable are stem xylem water isotopologues in single trees and across stands? How can we use this information to assess tree water uptake? Important new contribution
from Bernhard et al.:
onlinelibrary.wiley.com/doi/full/10....