Input data set: GSWP3-W5E5 (ISIMIP3a)

Climate related forcing: Atmospheric forcings - standard.

GSWP3 and W5E5 global meteorological forcing data processed for ISIMIP3a. Daily data covering 1801-1900 (spinclim), 1851-1900 (transclim) and 1901-2019 (obsclim, counterclim) on a 0.5°x0.5° lat-lon grid.

Combination of W5E5 v2.0 (Cucchi et al., 2020, and Lange et al., 2021) for 1979-2019 with GSWP3 v1.09 (Kim, 2017) homogenized to W5E5 for 1901-1978. The homogenization reduces discontinuities at the 1978/1979 transition and was done using the ISIMIP3BASD v2.5.0 bias adjustment method (Lange, 2019 and Lange, 2020).

Contains W5E5 data and data from the GSWP3 dataset, developed by Hyungjun Kim with support by the Japan Society for the Promotion of Science KAKENHI (16H06291).

Original W5E5 data covers the entire globe at 0.5° horizontal and daily temporal resolution from 1979 to 2016 (http://doi.org/10.5880/pik.2019.023). Combination of W5E5 v2.0 for 1979-2019 (https://doi.org/10.48364/ISIMIP.342217) with GSWP3 v1.09 homogenized to W5E5 for 1901-1978. The homogenization reduces discontinuities at the 1978/1979 transition and was done using the ISIMIP3BASD v2.5.0 bias adjustment method (https://doi.org/10.5194/gmd-12-3055-2019; https://doi.org/10.5281/zenodo.4686991). ISIMIP3a counterfactual data for impact attribution is produced using the ATTRICI v1.1 detrending method (https://doi.org/10.5194/gmd-14-5269-2021).

When referring to the GSWP3 data set, the following papers should be cited:
- Dirmeyer, P. A., Gao, X., Zhao, M., Guo, Z., Oki, T. and Hanasaki, N. (2006). GSWP-2: Multimodel Analysis and Implications for Our Perception of the Land Surface. Bulletin of the American Meteorological Society, 87(10), 1381–98.
- Hyungjun Kim. (2017). Global Soil Wetness Project Phase 3 Atmospheric Boundary Conditions (Experiment 1) [Data set]. Data Integration and Analysis System (DIAS). https://doi.org/10.20783/DIAS.501

When referring to the W5E5 data set, the following papers should be cited:
- Cucchi, M., Weedon, G. P., Amici, A., Bellouin, N., Lange, S., Müller Schmied, H., Hersbach, H. and Buontempo, C. (2020). WFDE5: bias-adjusted ERA5 reanalysis data for impact studies. Earth System Science Data, 12, 2097–2120
- Lange, S., Menz, C., Gleixner, S., Cucchi, M., Weedon, G.P., Amici, A., Bellouin, N., Müller-Schmied, H., Hersbach, H., Buontempo, C., Cagnazzo, C. (2021). WFDE5 over land merged with ERA5 over the ocean (W5E5 v2.0). ISIMIP Repository. https://doi.org/10.48364/ISIMIP.342217

When referring to the ISIMIP3BASD v2.5.0 bias adjustment method, the following papers should be cited:
- Lange, S. (2019). Trend-preserving bias adjustment and statistical downscaling with ISIMIP3BASD (v1.0). Geoscientific Model Development, 12, 3055–3070. https://doi.org/10.5194/gmd-12-3055-2019
- Lange, S. (2020). ISIMIP3BASD v2.5.0. Zenodo, https://doi.org/10.5281/zenodo.4686991

When referring to the ATTRICI v1.1 detrending method, the following paper should be cited:
- Mengel, M., et el. (2021). ATTRICI v1.1 – counterfactual climate for impact attribution, Geosci. Model Dev., 14, 5269–5284. https://doi.org/10.5194/gmd-14-5269-2021

Data last replaced on May 13, 2021.
Further information at https://www.isimip.org/gettingstarted/input-data-changelog/

For ISIMIP participants, these files are available for download on the DKRZ server using the path:
/work/bb0820/ISIMIP/ISIMIP3a/InputData/climate/atmosphere/obsclim/global/daily/historical/GSWP3-W5E5

For external users, these data can be downloaded from the ISIMIP Repository using the link below.