Georgia Papacharalampous
georgiapapachar.bsky.social
Georgia Papacharalampous
@georgiapapachar.bsky.social
I am an engineer, PhD, MSc working mainly on the intersection of geoscience and statistical modelling with a focus on machine learning algorithms, their combination with physics-based models and predictive uncertainty estimation.
Pinned
Happy (😊) to share our latest paper on variable transformations in consistent loss functions:
👉 doi.org/10.1016/j.kn...
👉 authors.elsevier.com/c/1mSkA3OAb9...
#LossFunction #MachineLearning #Prediction
@christost.bsky.social
Applying transforms within loss functions motivated our new paper with @georgiapapachar.bsky.social.
Free access: authors.elsevier.com/a/1mSkA3OAb9...
Available here: doi.org/10.1016/j.kn...
Reposted by Georgia Papacharalampous
Hydrology Paper of the Day @hydrohammond.bsky.social on how hydrological processes are affected by fire in the western United States: watersheds and streamflow generation; interception, snowmelt and ablation; evapotranspiration and overland flow; seasonality and a synthesis of environmental factors.
February 9, 2026 at 2:45 AM
Reposted by Georgia Papacharalampous
Hydrology Paper of the Day @agu.org on how landscape-scale processes and hydrogeology affect flowpaths for snowmelt: modelling for the Nanika catchment in British Columbia and the Krycklan catchment of Sweden; understanding anisotropic hydraulic conductivity; and the role of climate change.
Not all watersheds respond equally to climate variability—and new research reveals that the difference lies underground.💧

🔗 Learn more in Water Resources Research: buff.ly/vvnKfkv

#Snow #Hydrology #Climate #Groundwater #STEM @ali-ameli.bsky.social
February 10, 2026 at 4:38 AM
Reposted by Georgia Papacharalampous
Hydrology Paper of the Day @geoallen.bsky.social on how Synthetic Aperture Radar derived from Sentinel-1 satellites can be utilized to estimate water body evapotranspiration: sensor and data fusion with gridded datasets; robustly estimating wind fields; and application to the Lake Mead reservoir.
New paper by Katie McQuillan leverages satellite radar to map lake evaporation at 25× finer resolution than operational surface analysis products, opening up applications from improved gauge placement to evaluating geoengineering strategies doi.org/10.1109/LGRS...
February 8, 2026 at 4:22 AM
Reposted by Georgia Papacharalampous
Hydrology Paper of the Day @theglocal.bsky.social on the sociohydrology of the São Manoel Dam, Brazil: the need for Indigenous water managment; a social geography of sacred places; the need to preserve cultural heritage; and why companies operate at the intersection of water, language and culture.
𝗚𝗟𝗢𝗖𝗔𝗟 𝗟𝗔𝗖 – 𝗜𝗻𝗱𝗶𝗴𝗲𝗻𝗼𝘂𝘀 𝗕𝗿𝗮𝘇𝗶𝗹 𝗮𝗻𝗱 𝘁𝗵𝗲 𝗠𝘂𝗻𝗱𝘂𝗿𝘂𝗸𝘂 𝗗𝗮𝗺
Munduruku communities protest São Manoel dam impact, demanding the return of sacred land, indigenous protection, corporate accountability, and cultural survival. #glocallac #linguistics #anthropology

Full Paper: glocal.soas.ac.uk/halt-constru...
February 7, 2026 at 3:20 AM
Reposted by Georgia Papacharalampous
Hydrology Paper of the Day @jasminheilemann.bsky.social on civil engineering interventions, city management and climate change: urban heat adaptations in the Józsefváro district of Budapest; surveys to understand heatwaves; design outcomes and heat adaptation; and a co-designed urban intervention.
Excited to share our latest publication in my first post on BlueSky! 🌍✨ We evaluated the urban heat adaptation project "CoolCo’s" through the #NewEuropeanBauhaus principles of #sustainability, #beauty, and #inclusion. 🔗 Read more: rdcu.be/ee807
Urban heat adaptation through co-design of public space using the new European Bauhaus principles: a case study of Józsefváros, Budapest
rdcu.be
February 5, 2026 at 6:14 AM
Reposted by Georgia Papacharalampous
Hydrology Paper of the Day @danielmu11er.bsky.social on crop water magnitudes in the Amu Darya Basin: ETa and exploring the geography of cropping practices; climate and climate driver anomalies; land use and the prevalance of downstream challenges and changes; and characterizing uncertainties.
February 6, 2026 at 3:25 AM
Reposted by Georgia Papacharalampous
Hydrology Paper of the Day @timcurran.bsky.social on the foundational processes of pyro-ecophysiology: indicating how plants respond to drought conditions in the context of hydrological processes; relating flammability variables to drought responses; plant hydraulic traits; and climate change.
February 3, 2026 at 5:12 AM
Reposted by Georgia Papacharalampous
Hydrology Paper of the Day @jvs-avs.bsky.social on how understorey communities in floodplain forests are affected by traits and hydrology: physiology and hydrological gradients; changes in species and the prevalence of drought; soil moisture in Central Europe; and ecosystem-informed management.
🌿 Forest change over time. Lanta et al. reveal that understory plant composition in temperate floodplain forests changes differently at long vs short temporal scales, with shifts in seasonal species richness linked to climate and hydrology 📊🌳.
onlinelibrary.wiley.com
February 4, 2026 at 3:59 AM
Reposted by Georgia Papacharalampous
Hydrology Paper of the Day @ericamarshall.bsky.social @trentpenman.bsky.social on utilizing vegetation to prevent fire spread in Australia: climate change and case studies for five regions; probabilistic simulations and forcings; weather from downscaling of GCMs; and the need for risk reduction.
February 2, 2026 at 4:46 AM
Reposted by Georgia Papacharalampous
Hydrology Paper of the Day @limnologylauren.bsky.social on how climate change, warm weather, and low discharge affects acid mine drainage into wetlands: impacts of an abandoned silver mine; seasonality, pH and water quality observations; diurnal cycles related to photochemistry; and spatial cycles.
New paper! 🎉 Abandoned mines aren't just leaching trace metals, they're also releasing REEs with systematic diel cycling. Our wetland study revealed distinct light-driven patterns for different REEs. Understanding these processes matters for both ecological risk assessment & remediation planning. 🧪⚒️
Potential photochemical controls on trace metals and rare earth elements in an acid mine drainage impacted wetland - Biogeochemistry
Recent climate trends in the Colorado Mineral Belt have intensified acid mine drainage (AMD) impacts, increasing the importance to understand trace metal and rare earth element (REE) cycling in affect...
link.springer.com
February 1, 2026 at 2:12 AM
Reposted by Georgia Papacharalampous
Hydrology Paper of the Day @lireactivewater.bsky.social on why chemical solutes in intermittent streams are dependent on hydrological changes: three decades of data from the Konza Prairie Biological Station, Kansas; examination of the power law CQ relationship; and patterns at different time scales.
Does discharge Q drive chemistry C in intermittent streams?

No. They depend more on dry-wet transitions

Highly variable CQ at low Q change to consistent CQ at high Q, signalling a switch from a biogeochemistry-driven dry to flow-driven wet state

agupubs.onlinelibrary.wiley.com/doi/10.1029/...
January 31, 2026 at 4:30 AM
Reposted by Georgia Papacharalampous
Hydrology Paper of the Day @cdnsciencepub.com on the spatiotemporal distribution of parasitic marine alveolates: rRNA metabarcodes from the Arctic Ocean, Svalbard; community diversity and relationships with environmental factors; seasonality; and quantifying variabilty by hierarchical clustering.
📰 The community of marine alveolate parasites in the Atlantic inflow to the Arctic Ocean is structured by season, depth, and water mass

Read the full #OpenAccess paper in this collection from Arctic Science Journal ▶️ https://ow.ly/F6hS50XpFZX

#ArcticResearch #MarineScience
January 30, 2026 at 4:11 AM
Reposted by Georgia Papacharalampous
Hydrology Paper of the Day @nature.com on reconstructing temperature and salinity of the North Atlantic Ocean 19,000 to 23,000 years ago: stable isotope reconstructions from marine sediment cores; temperatures from benthic foraminifera trace-metal ratios; and reconstructing glacial water currents.
January 29, 2026 at 5:24 AM
Reposted by Georgia Papacharalampous
Hydrology Paper of the Day @forestecosyst.bsky.social on satellite data products in Nepal: comparison and validation of primary productivity and evapotranspiration between gridded datatsets; relationships related to elevation and land cover type; drought and biogeochemical cycles; and uncertainties.
Satellite data show mountain productivity peaks below 200m and water use changes with elevation. This helps us predict climate impacts and manage these ecosystems better, crucial for biodiversity and water resources.🌲
@forestecosyst.bsky.social
www.sciencedirect.com/science/arti...
January 28, 2026 at 4:46 AM
Reposted by Georgia Papacharalampous
Hydrology Paper of the Day @lisa-mandl.bsky.social @corneliussenf.bsky.social on how remote sensing datasets indicate patterns of forest recovery in the Alps: ecological indicators and disturbance; recovery metrics and environmental hydroclimatic drivers; and regional temperature anomalies.
New paper out!
We mapped forest recovery and its drivers in the Alps using multi-decadal fractional cover maps 🛰 and ecologically-informed recovery indicators 🌲.
New paper - and final PhD chapter of @lisa-mandl.bsky.social - published in Agricultural and Forest Meteorology. Using Landsat recovery and meteorological data, we show that thermal limitations constrain post-disturbance recovery success across forests of the European Alps: doi.org/10.1016/j.ag...
January 27, 2026 at 4:31 AM
Reposted by Georgia Papacharalampous
Hydrology Paper of the Day @tommaso-jucker.bsky.social on how airborne laser scanning provides insight into how the forest canopy changes after fire in Australia’s Great Western Woodlands: GAMs for structural metrics; relating changes to rainfall and water availability; and estimates of stand age.
🚨Paper alert🚨

Check out Beibei Zhang's latest work out today @royalsocietypublishing.org where we track the 3D structural recovery of Australia's Great Western Woodlands following wildfires over a chronosequence spanning half a millenia!🌳🛰️🔥🧪

royalsocietypublishing.org/doi/10.1098/...
January 26, 2026 at 2:23 AM
Reposted by Georgia Papacharalampous
Hydrology Paper of the Day @igsopas.bsky.social on how sediments from thermokarst lakes indicate the retreat of glacial ice from Northern Poland: mapping lake extent and geomorphologies; quantifying hydrology during the time of melting ice; sediment transport; and the veracity of LiDAR datasets.
New paper by our team led by Mateusz Kramkowski! 🎉
The study reveals hundreds of relict thermokarst lakes (RTL) formed after the Vistulian ice retreat — shedding new light on the Late Pleistocene of Poland.
🔗 onlinelibrary.wiley.com/doi/10.1002/...
January 25, 2026 at 3:41 AM
Reposted by Georgia Papacharalampous
Hydrology Paper of the Day @ryanpad.bsky.social @wslresearch.bsky.social on improving hydrological forecasts by application of the Temporal Fusion Transformer ML model: wavelet transforms and emsemble forecasts; how to select seeds in the context of predictive skill; and application to Switzerland.
New study by Konrad and Ryan in my team @wslresearch.bsky.social as part of @extremeswsl.bsky.social

Some randmoness can help in sub seasonal streamflow and water temperature forecasts.

A piece for friends of statistics 🤓
The dependence of Deep Learning models on randomness is often neglected, which can lead to problems in operational forecasting with extended forecast periods. I am pleased to share our new paper with potential solutions for using this randomness to improve forecast quality. rdcu.be/eX8Xg
January 22, 2026 at 5:59 AM
Reposted by Georgia Papacharalampous
Hydrology Paper of the Day @mikeflannigan.bsky.social on how climate change influences fire activity variables in Canada: modelling regional-scale feedback effects related to fire fuels; understanding changes; shift ratios and end-of-century impacts; and high-magnitude changes in eastern ecozones.
New paper in Global Ecology & Biogeography on the fire‐fuel feedback effect in Canadian forests. By 2100, under extreme climate change scenarios, fire-fuel feedback could reduce annual area burned, # of fires & annual max fire size by 21%, 21% & 16%, respectively.
Open access link: lnkd.in/gU9WUuDH
January 23, 2026 at 4:38 AM
Reposted by Georgia Papacharalampous
Hydrology Paper of the Day @dnthomas01.bsky.social on the microbial communities of plastics in water: risks, pathogens, and understanding exposure in waste management cycles; how sewer overflows and aquatic ecosystems interact; and management in the context of beach and recreational areas.
New paper
"Plastic pollution & human pathogens: towards a conceptual shift in risk management at bathing water and beach environments" led by @David_M_Oliver

Open access: https://www.sciencedirect.com/science/article/pii/S004313542400928X

#PlasticPollution #WaterQuality
January 24, 2026 at 1:56 AM
Reposted by Georgia Papacharalampous
Hydrology Paper of the Day @jvs-avs.bsky.social on the biogeography of floodplain forests: changes in richness and diversity linked to environmental factors; the importance of traits and community shifts; moisture conditions related to sites in context of invasive species; and 60 years of data.
🌿 Forest change over time. Lanta et al. reveal that understory plant composition in temperate floodplain forests changes differently at long vs short temporal scales, with shifts in seasonal species richness linked to climate and hydrology 📊🌳.
onlinelibrary.wiley.com
January 21, 2026 at 4:24 AM
Reposted by Georgia Papacharalampous
New study by Konrad and Ryan in my team @wslresearch.bsky.social as part of @extremeswsl.bsky.social

Some randmoness can help in sub seasonal streamflow and water temperature forecasts.

A piece for friends of statistics 🤓
The dependence of Deep Learning models on randomness is often neglected, which can lead to problems in operational forecasting with extended forecast periods. I am pleased to share our new paper with potential solutions for using this randomness to improve forecast quality. rdcu.be/eX8Xg
Client Challenge
rdcu.be
January 12, 2026 at 10:24 AM
Reposted by Georgia Papacharalampous
Peaceful, no tariffs, no blackmailing, no million ticket needed, just to enjoy
January 19, 2026 at 3:27 PM
Thank you so much, @kinarnicholas.bsky.social!! We are super happy to see our paper featured in your wonderful collection!!
January 20, 2026 at 7:50 AM
Thank you so much, @kinarnicholas.bsky.social!!
Hydrology Paper of the Day @christost.bsky.social @georgiapapachar.bsky.social on consistent loss functions: explicit definitions and examples; how these loss functions are utilized to evaluate point predictions; loss functions and transformations; and applications to climatology and hydrology.
Happy (😊) to share our latest paper on variable transformations in consistent loss functions:
👉 doi.org/10.1016/j.kn...
👉 authors.elsevier.com/c/1mSkA3OAb9...
#LossFunction #MachineLearning #Prediction
@christost.bsky.social
January 20, 2026 at 7:47 AM