edu.ucar.opensky::articles:19473 UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact 2025-12-26T02:37:29.594851 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) https://n2t.org/ark:/85065/d7833ts1 Assessing convection permitting resolutions of WRF for the purpose of water resource impact assessment and vulnerability work: A southeast Australian case study 2017-01-01T00:00:00Z publication https://n2t.org/ark:/85065/d7833ts1 https://doi.org/10.1002/2016WR019545 Ekström, M. author Gilleland, Eric author UCAR/NCAR - Library publisher Convective permitting simulations are increasingly pursued for providing physically more credible climate projections of rainfall. Their value is likely to be greater for regions where increased resolution not only resolves physical processes better, but also the topographic features of the target domain. Here, we assess the skill of convective permitting simulations to simulate rainfall for water resource assessment work in a climate change context for southeast Australia. Output on 2 and 10 km grid-length resolution from a 5-year regional climate model simulation is assessed for skill in simulating mean seasonal climatologies for days with low or high observed rainfall intensities. Comparison is conducted on spatial grids and for 25 catchments across the study region. No significant difference in skill was found in the loss differential when using absolute error for spatial fields of mean climatologies. Measures focusing on spatial similarity and accuracy in position of high rainfall areas indicate somewhat better skill in the 2 km simulation with regard to positioning (in autumn and winter), and with regard to spatial variability (in autumn and spring). Significant difference in skill was shown when comparing the simulated data sets on a catchment basis; seasonally 5–7 catchments in favor of the 10 km output and somewhat less for the 2 km output (3–6 catchments). When using correlation skill as the test measure, results are overwhelmingly in favor of the 2 km output. We cautiously suggest that results may be overly pessimistic for the 2 km simulation because of inadequate representation of rainfall in high altitude areas in observations. UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact PDF Text theme Resource Type 2016-01-01T00:00:00Z publication Copyright 2017 American Geophysical Union. None eng geoscientificInformation