TR32-Database: Database of Transregio 32

[1771] - Land-atmosphere coupling in EURO-CORDEX evaluation experiments

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Knist, S., 2017. Land-atmosphere coupling in EURO-CORDEX evaluation experiments. J. Geophys. Res. Atmos., 122, doi:10.1002/2016JD025476, 79 - 103.
Title(s):Main Title: Land-atmosphere coupling in EURO-CORDEX evaluation experiments
Description(s):Abstract: Interactions between the land surface and the atmosphere play a fundamental role in theweather and climate system. Here we present a comparison of summertime land-atmosphere coupling strength found in a subset of the ERA-Interim-driven European domain Coordinated Regional ClimateDownscaling Experiment (EURO-CORDEX) model ensemble (1989–2008). Most of the regional climate models (RCMs) reproduce the overall soilmoisture interannual variability, spatial patterns, and annual cycles of surface exchange fluxes for the different European climate zones suggested by the observational Global Land Evaporation Amsterdam Model (GLEAM) and FLUXNET data sets. However, some RCMs differ substantially from FLUXNET observations for some regions. The coupling strength is quantified by the correlation between the surface sensible and the latent heat flux, and by the correlation between the latent heat flux and 2m temperature. The first correlation is compared to its estimate from the few available long-term European high-quality FLUXNET observations, and the latter to results from gridded GLEAM data. The RCM simulations agree with both observational datasets in the large-scale pattern characterized by strong coupling in southern Europe andweak coupling in northern Europe.However, in the transition zone fromstrong toweak coupling covering large parts of central Europe many of the RCMs tend to overestimate the coupling strength in comparison to both FLUXNET and GLEAM. The RCM ensemble spread is caused primarily by the different land surface models applied, and by themodel-specific weather conditions resulting fromdifferent atmospheric parameterizations.
Citation Advice:Knist, S., et al. (2016), Land-atmosphere coupling in EURO-CORDEX evaluation experiments, J. Geophys. Res. Atmos., 122, doi:10.1002/2016JD025476
Responsible Party
Creator(s):Author: Sebastian Knist
Publisher:Jülich Supercomputing Centre, Research Centre Jülich, Jülich, Germany
TR32 Topic:Atmosphere
Related Sub-project(s):C4
Subject(s):CRC/TR32 Keywords: Atmosphere–Land Interaction
File Details
File Name:Knist_et_al_2017_JGR_Atmospheres.pdf
Data Type:Text
File Size:6803 kB (6.644 MB)
Date(s):Date Accepted: 2016-12-03
Mime Type:application/pdf
Data Format:PDF
Download Permission:Free
General Access and Use Conditions:According to the TR32DB data policy agreement.
Access Limitations:According to the TR32DB data policy agreement.
North:-no map data
Measurement Region:None
Measurement Location:--None--
Specific Informations - Publication
Article Type:Journal
Source:J. Geophys. Res. Atmos., 122, doi:10.1002/2016JD025476
Page Range:79 - 103
Metadata Details
Metadata Creator:Sebastian Knist
Metadata Created:2018-03-08
Metadata Last Updated:2018-03-08
Funding Phase:3
Metadata Language:English
Metadata Version:V42
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