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disdrodb: an open-source Python package for standardized processing, sharing, and analysis of disdrometer data

disdrodb is a Python package for standardized sharing, processing, and analysis of disdrometer observations. It makes precipitation particle size distribution datasets easier to discover, access, and download, and converts heterogeneous raw measurements into global harmonized products for remote sensing precipitation retrievals and particle size distribution studies.

A global high-resolution hydrological model to simulate the dynamics of surface liquid reservoirs: application on Mars

In this paper, we present a global high-resolution hydrological model to investigate how water may have once flowed and accumulated on Mars. Using detailed topography, the model tracks how lakes and seas form, grow, merge, overflow, and dry out over time. It reveals how a vast northern ocean could emerge from smaller bodies of water. This approach links surface landforms to past climates, offering new perspectives on Mars' watery history and its potential habitability.

Valley longitudinal profiles record the fluvial landscape evolution and geological structure of the Gamburtsev Subglacial Mountains, East Antarctica

This study focusses on the Gamburtsev Subglacial Mountains, a 600 km-long mountain range that is completely hidden beneath the Antarctic Ice Sheet. We look at the valley networks within the Gamburtsevs and use these to understand how the mountains formed. Our main findings are that the valleys were first cut by rivers that existed before Antarctica was glaciated, the shape of the valleys is affected by the bedrock geology, and the mountains are probably younger than previously thought.

Assessment of seismicity and risk from gas injection in the Groningen gas field

Natural Hazards and Earth System Sciences
DOI 10.5194/nhess-26-3443-2026
28 July 2026

Gas production from the Groningen gas field caused felt earthquakes, resulting in field closure in 2023. Despite this, earthquakes are expected to continue for years to come. This study models whether gas injection may be used to reduce earthquakes. The results suggest that, under continued zero-production scenarios, gas injection would decrease the number of earthquakes and the associated seismic risk compared to a no-injection scenario, offering a potential avenue for active mitigation.

CO₂ and H₂O isotope exchange and flux partitioning in Amazonia

We used high-frequency H₂O and CO₂ isotope measurements taken in the Amazon Tall Tower Observatory (ATTO) to separate water vapour and carbon dioxide fluxes into their component processes. During midday, ~95 % of evapotranspiration came from plant transpiration. Isotopes also revealed the balance between photosynthesis and respiration, showing strong sensitivity to leaf CO₂ ratios. These results improve understanding of Amazon ecosystem function.

The added value of new ground-based observations in improving China's methane emission quantification

Methane is a potent greenhouse gas, yet existing satellite and ground observations in China are too sparse to accurately quantify emissions, highlighting the need for an expanded ground network. Using Bayesian inversion and simulated annealing, we identify optimal locations for new sites. Results show that prioritizing stations in eastern and southwestern China would be most effective. Expanding the network with 50 stations could nearly double the current emission constraint capability.

Europe's transport infrastructure is not ready to face climate change

Natural Hazards and Earth System Sciences
DOI 10.5194/nhess-26-3345-2026
22 July 2026

Climate extremes like floods, heatwaves, droughts, and wildfires are disrupting Europe’s transport. This study combines a review of past events and future projections to assess current losses and the future exposure of transport infrastructure. Exposure to extremes is projected to rise, but lower emissions can reduce it. Urgent action is needed to reduce emissions and adapt the Trans-European Transport Network to a changing climate.

From continental to street scales: climate change impacts on atmospheric composition over Europe and London

We use innovative coupled modelling to quantify how natural emissions, chemistry, deposition and transport influence climate change responses of air pollutants from continental to urban scales across Europe. We highlight uncertainties in climate-sensitive biogenic emissions as key to future projections of ozone and fine particulate matter. High resolution modelling is essential for evaluating the benefits and trade-offs of climate change for achieving WHO air quality targets and guidelines.

Brief communication: Temperature-driven shrinkage of a disappearing Himalayan glacier

Glacier AX010 in Nepal, monitored since the 1970s, has been shrinking at an accelerating rate, mainly due to rising temperatures. Drone surveys, modeling, and reanalysis data show mass loss began in the early 1970s and intensified after 2000. While rising temperatures drive shrinkage, precipitation changes have neither accelerated nor mitigated mass loss. At the current rate, the glacier may disappear within 10–20 years.

Wildfire-induced disruptions to evapotranspiration, runoff, and water-balance closure across California's water supply watersheds

Large wildfires are reshaping California’s water-supply forests. Using 40 years of satellite and river data, we found that severe fires greatly reduce vegetation water use, sometimes increasing runoff during dry years. Recovery varies widely across basins and can take many years. The work shows that wildfire can disturb the entire water budget and highlights the need to include fire effects when planning for future water resources.

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