Finding optimal Noah-MP parameterizations for the characterization of surface heat fluxes in the Iberian Peninsula
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| Main Authors: | , , , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866918179096231936 |
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| author | Donaire-Montaño, David Ojeda, Matilde García-Valdecasas Tacoronte, Nicolás Rosa-Cánovas, Juan José Castro-Díez, Yolanda Esteban-Parra, María Jesús Gámiz-Fortis, Sonia Raquel |
| author_facet | Donaire-Montaño, David Ojeda, Matilde García-Valdecasas Tacoronte, Nicolás Rosa-Cánovas, Juan José Castro-Díez, Yolanda Esteban-Parra, María Jesús Gámiz-Fortis, Sonia Raquel |
| contents | Land surface models (LSMs) play a crucial role in characterizing land-atmosphere interactions by providing boundary conditions to regional climate models (RCMs). This is particularly true over the Iberian Peninsula (IP), where a water-limited regime governs much of the territory. We optimize the configuration of the Noah land surface model with multiparameterization options (Noah-MP) for characterizing heat fluxes in the IP when the Weather Research and Forecasting (WRF) model v3.9.1 is used as an RCM. We perform 70 one-year simulations using 35 Noah-MP combinations, for a dry year (2005) and a wet year (2010). Land-surface heat fluxes and soil moisture from WRF/Noah-MP are evaluated against FLUXNET station data and the CERRA-Land reanalysis. In general, WRF/Noah-MP reproduces soil moisture and surface heat fluxes well over the IP, especially under wetter conditions. Clustering identifies an optimal configuration from 10 groups (A to J). The Noah-MP options with greatest impact are canopy stomatal resistance (CRS), surface exchange coefficient for heat (SFC), soil-moisture factor controlling stomatal resistance (BTR), runoff and groundwater (RUN), and surface resistance to evaporation/sublimation (RSF); dynamic vegetation (DVEG) also matters. Several configurations performed reasonably; experiment s27I (Jarvis CRS, Chen97 SFC, CLM-type BTR, BATS RUN, and adjusted Sellers RSF for wet soils) provides a particularly good characterization of heat fluxes over the IP. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2510_26421 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Finding optimal Noah-MP parameterizations for the characterization of surface heat fluxes in the Iberian Peninsula Donaire-Montaño, David Ojeda, Matilde García-Valdecasas Tacoronte, Nicolás Rosa-Cánovas, Juan José Castro-Díez, Yolanda Esteban-Parra, María Jesús Gámiz-Fortis, Sonia Raquel Atmospheric and Oceanic Physics Land surface models (LSMs) play a crucial role in characterizing land-atmosphere interactions by providing boundary conditions to regional climate models (RCMs). This is particularly true over the Iberian Peninsula (IP), where a water-limited regime governs much of the territory. We optimize the configuration of the Noah land surface model with multiparameterization options (Noah-MP) for characterizing heat fluxes in the IP when the Weather Research and Forecasting (WRF) model v3.9.1 is used as an RCM. We perform 70 one-year simulations using 35 Noah-MP combinations, for a dry year (2005) and a wet year (2010). Land-surface heat fluxes and soil moisture from WRF/Noah-MP are evaluated against FLUXNET station data and the CERRA-Land reanalysis. In general, WRF/Noah-MP reproduces soil moisture and surface heat fluxes well over the IP, especially under wetter conditions. Clustering identifies an optimal configuration from 10 groups (A to J). The Noah-MP options with greatest impact are canopy stomatal resistance (CRS), surface exchange coefficient for heat (SFC), soil-moisture factor controlling stomatal resistance (BTR), runoff and groundwater (RUN), and surface resistance to evaporation/sublimation (RSF); dynamic vegetation (DVEG) also matters. Several configurations performed reasonably; experiment s27I (Jarvis CRS, Chen97 SFC, CLM-type BTR, BATS RUN, and adjusted Sellers RSF for wet soils) provides a particularly good characterization of heat fluxes over the IP. |
| title | Finding optimal Noah-MP parameterizations for the characterization of surface heat fluxes in the Iberian Peninsula |
| topic | Atmospheric and Oceanic Physics |
| url | https://arxiv.org/abs/2510.26421 |