Please use this identifier to cite or link to this item:
Testing a Dry Soil Layer scheme in SURFEX and Harmonie-Arome
Title: Testing a Dry Soil Layer scheme in SURFEX and Harmonie-Arome
Authors: Viana Jiménez, Samuel ORCID RESEARCHERID SCOPUSID Autor AEMETMartí, BelénBoone, Aaron
Keywords: Harmonie-Arome; Dry soil layer; SURFEX
Issue Date: Apr-2023
Publisher: Agencia Estatal de Meteorología
Citation: ACCORD All Staff Workshop (2024)
Abstract: Total evapotranspiration (ET) is a key variable in Land surface/Earth System models, which needs to be accurately simulated in order to avoid excessive biases in simulated energy, water, and carbon cycles. Models, which usually simulate ET by formulating resistance-based parameterizations for plant transpiration and direct evaporation from the soil and the plant canopy, often overestimate ET on semi-arid environments. A new soil evaporation resistance parameterization in which soil evaporation is approximated as water vapour diffusion through a dry soil layer (DSL) following [1] is available in SURFEX, and has shown good performance in offline tests for two semi-arid sites from the LIAISE field campaign [2]. Recent Harmonie-Arome (H-A) tests activating DIF and MEB ISBA settings have shown a degradation in near surface humidity variables, leading to an overall dry bias, specially in areas with contrasting seasons where the soil gets quite dry in late spring and summer. In this study we test the DSL parameterization in H-A experiments over Spain.
Description: Póster presentado en: 4th All Staff Workshop, celebrado del 15 al 19 de abril de 2024 en Norrköping.
Appears in Collections:Otros póster

Files in This Item:
  File Description SizeFormat 
2,74 MBAdobe PDFThumbnail
Show full item record

Items in Arcimis are protected by Creative Commons License, unless otherwise indicated.

Arcimis Repository
Nota Legal Contacto y sugerencias