ORCHIDEE-ICE_SurfaceMassBalance ...

• Main Author: Charbit, Sylvie
• Format: Software
• Language: English
• Published: ESPRI/IPSL 2024
• Subjects: LSM; Models/Analyses; ALBEDO; The Water Cycle; Greenland; Ice Sheet; ice covered areas
• Online Access: https://dx.doi.org/10.14768/d82899b4-09b4-4337-abb1-75886602fe72; https://data.ipsl.fr/catalog/metadata/d82899b4-09b4-4337-abb1-75886602fe72

This version of ORCHIDEE has been used in the publication "Modelling snowpack on ice surfaces with the ORCHIDEE land surface model: Application to the Greenland ice sheet" by Charbit et al. (2024). Current climate warming is accelerating mass loss from glaciers and ice sheets. In Greenland, the rates of mass changes are now dominated by changes in surface mass balance (SMB) due to increased surface melting. To improve the future sea-level rise projections, it is therefore critical to have an accurate estimate of the SMB, which depends on the representation of the processes occurring within the snowpack. The snow scheme (ES) implemented in the land surface model ORCHIDEE has not yet been adapted to ice-covered areas. Here, we present the preliminary developments we made to apply the ES model to glaciers and ice sheets. Our analysis mainly concerns the model’s ability to represent ablation-related processes. At the regional scale, our results are compared to the MAR regional atmospheric model outputs and to ...