Royal Netherlands Meteorological Institute

A 500 m deep multipurpose research borehole and monitoring station in Delft, the Netherlands

The 500 m deep DAPGEO-02 multifunctional research borehole and monitoring station was drilled in Delft in spring 2022. Dinoflagellate biostratigraphy reveals that the borehole goes through the Neogene Upper North Sea Group, including the Waalre, Maassluis, Oosterhout, Diessen, an...

MONKI: a three-dimensional Monte Carlo simulator for transfer of polarised light in planetary atmospheres

Abstract. Spectropolarimetry is a powerful tool for characterising planetary atmospheres and surfaces. For the design and operation of spectro(polari)metric instrumentation, numerically simulated signals of the measured radiation are essential. Here we present MONKI (Monte Carlo...

The one-Layer Antarctic model for Dynamical Downscaling of Ice–ocean Exchanges (LADDIE) version 2.0

Projections of Antarctic mass loss and its contribution to sea-level rise are highly sensitive to the applied ocean-driven melting. As fully coupled continental-scale ocean–ice sheet models are scarce, ice sheet models are typically run in standalone configurations, forced with p...

Consistency between zonal mean stratospheric and total column ozone trends (2000–2024)

This study presents an updated assessment of stratospheric and total column ozone trends over the 2000–2024 period using six merged limb-profile datasets and six merged total ozone datasets. Long-term changes were quantified using a multiple linear regression framework that accou...

A simplified isoprene oxidation mechanism for fast formaldehyde-based emission inversion of isoprene

We introduce the Simplified Isoprene Chemistry for MAGRITTE (SICMA), a compact chemical mechanism designed for computationally efficient global chemistry transport modeling of formaldehyde (HCHO) and adjoint-based emission inversions. The scheme reduces the isoprene oxidation net...

Validation of cloud macrophysical properties from the ATLID Level 2a products A-TC, A-FM, A-CTH using airborne lidar observations during the HALO missions PERCUSION, ASCCI and NAWDIC

The Earth Cloud, Aerosol, and Radiation Explors (EarthCARE) satellite mission aims to improve our understanding of cloud–aerosol–radiation interactions in the Earth's climate system. Its Atmospheric Lidar (ATLID) instrument aboard EarthCARE provides important observational data f...

Projected westward advance of tropospheric formaldehyde over China

Economic development and population aggregation are driving the east-to-west spread of tropospheric formaldehyde (HCHO) in China; yet the historical trajectory and future threat of this westward migration remain poorly understood. Here, we analyze OMI satellite observations utili...

On the non-linear response of Antarctic ice shelf surface melt to warming

Abstract. Surface meltwater can saturate firn, form melt ponds, and trigger hydrofracturing of Antarctic ice shelves, ultimately accelerating grounded ice flow and contributing to sea level rise. Although the response of surface melt to atmospheric warming (expressed by near-surf...

Synergistic Effects of an Interlaced Mountain–Lake–Plain Terrain on Wintertime PM 2.5 Pollution in Central China

Abstract The role of plain–lake–mountain mixed terrain surfaces on fine particle (PM 2.5 ) pollution is still unclear. Here, a Weather Research and Forecasting model coupled with Chemistry modeling study was designed for a winter PM 2.5 pollution episode in Central China with two...

Catalogue of strong nonlinear surprises in ocean, sea-ice, and atmospheric variables in CMIP6

Abstract. The Coupled Model Intercomparison Project Phase 6 (CMIP6) archive was analysed for the occurrence of Strong Nonlinear Surprises (SNS) in future climate-change projections. To this end, we built an automated detection algorithm to identify SNS in a reproducible manner. T...