Geomorphological and hydrological controls on sediment export in earthquake-affected catchments in the Nepal Himalaya Earth Surface Dynamics DOI 10.5194/esurf-12-135-2024 5 January 2024 Using satellite images, we show that, unlike other examples of earthquake-affected rivers, the rivers of central Nepal experienced little increase in sedimentation following the 2015 Gorkha earthquake. Instead, a catastrophic flood occurred in 2021 that buried towns and agricultural land under up to 10 m of sediment. We show that intense storms remobilised glacial sediment from high elevations causing much a greater impact than flushing of earthquake-induced landslides. Read more
Opinion: The importance of historical and paleoclimate aerosol radiative effects Atmospheric Chemistry and Physics DOI 10.5194/acp-24-533-2024 3 January 2024 Estimating past aerosol radiative effects and their uncertainties is an important topic in climate science. Aerosol radiative effects propagate into large uncertainties in estimates of how present and future climate evolves with changing greenhouse gas emissions. A deeper understanding of how aerosols interacted with the atmospheric energy budget under past climates is hindered in part by a lack of relevant paleo-observations and in part because less attention has been paid to the problem. Read more
Quantifying particulate matter optical properties and flow rate in industrial stack plumes from the PRISMA hyperspectral imager Atmospheric Measurement Techniques DOI 10.5194/amt-17-57-2024 1 January 2024 We propose analyzing the aerosol composition of plumes emitted by different industrial stacks using PRISMA satellite hyperspectral observations. Three industrial sites have been observed: a coal-fired power plant in South Africa, a steel plant in China, and gas flaring at an oil extraction site in Algeria. Aerosol optical thickness and particle radius are retrieved within the plumes. The mass flow rate of particulate matter is estimated in the plume using the integrated mass enhancement method. PRISMA hyperspectral imager">Read more
Geochronological and geochemical effects of zircon chemical abrasion: insights from single-crystal stepwise dissolution experiments Geochronology DOI 10.5194/gchron-6-1-2024 29 December 2023 Acid leaching is used to remove radiation-damaged portions of zircon crystals prior to U–Pb dating to improve the accuracy of datasets. We test how the temperature and duration of acid leaching affect geochronological and geochemical outcomes. We build a framework that relates radiation damage, zircon solubility, and Pb loss. Read more
Reviews and syntheses: expanding the global coverage of gross primary production and net community production measurements using Biogeochemical-Argo floats Biogeosciences DOI 10.5194/bg-21-13-2024 27 December 2023 This paper provides an overview of the capacity to expand the global coverage of marine primary production estimates using autonomous ocean-going instruments, called Biogeochemical-Argo floats. We review existing approaches to quantifying primary production using floats, provide examples of the current implementation of the methods, and offer insights into how they can be better exploited. This paper is timely, given the ongoing expansion of the Biogeochemical-Argo array. Read more
Cost estimation for the monitoring instrumentation of landslide early warning systems Natural Hazards and Earth System Sciences DOI 10.5194/nhess-23-3913-2023 25 December 2023 A new approach for the deployment of landslide early warning systems (LEWSs) is proposed. We combine data-driven landslide susceptibility mapping and population maps to identify exposed locations. We estimate the cost of monitoring sensors and demonstrate that LEWSs could be installed with a budget ranging from EUR 5 to EUR 41 per person in Medellín, Colombia. We provide recommendations for stakeholders and outline the challenges and opportunities for successful LEWS implementation. Read more
The Framework for Assessing Changes To Sea-level (FACTS) v1.0: a platform for characterizing parametric and structural uncertainty in future global, relative, and extreme sea-level change Geoscientific Model Development DOI 10.5194/gmd-16-7461-2023 22 December 2023 Future sea-level rise projections exhibit multiple forms of uncertainty, all of which must be considered by scientific assessments intended to inform decision-making. The Framework for Assessing Changes To Sea-level (FACTS) is a new software package intended to support assessments of global mean, regional, and extreme sea-level rise. An early version of FACTS supported the development of the IPCC Sixth Assessment Report sea-level projections. FACTS) v1.0: a platform for characterizing parametric and structural uncertainty in future global, relative, and extreme sea-level change">Read more
The Indonesian Throughflow circulation under solar geoengineering Earth System Dynamics DOI 10.5194/esd-14-1317-2023 20 December 2023 The Indonesia Throughflow is an important pathway connecting the Pacific and Indian oceans and is part of a wind-driven circulation that is expected to reduce under greenhouse gas forcing. Solar dimming and sulfate aerosol injection geoengineering may reverse this effect. But stratospheric sulfate aerosols affect winds more than simply ``shading the sun’‘; they cause a reduction in water transport similar to that we simulate for a scenario with unabated greenhouse gas emissions. Read more
Drivers controlling black carbon temporal variability in the lower troposphere of the European Arctic Atmospheric Chemistry and Physics DOI 10.5194/acp-23-15589-2023 18 December 2023 Models still fail in reproducing black carbon (BC) temporal variability in the Arctic. Analysis of equivalent BC concentrations in the European Arctic shows that BC seasonal variability is modulated by the efficiency of removal by precipitation during transport towards high latitudes. Short-term variability is controlled by synoptic-scale circulation patterns. The advection of warm air from lower latitudes is an effective pollution transport pathway during summer. Read more
Uncertainty assessment of satellite remote-sensing-based evapotranspiration estimates: a systematic review of methods and gaps Hydrology and Earth System Sciences DOI 10.5194/hess-27-4505-2023 15 December 2023 Satellite data are increasingly used to estimate evapotranspiration (ET) or the amount of water moving from plants, soils, and water bodies into the atmosphere over large areas. Uncertainties from various sources affect the accuracy of these calculations. This study reviews the methods to assess the uncertainties of such ET estimations. It provides specific recommendations for a comprehensive assessment that assists in the potential uses of these data for research, monitoring, and management. Read more
