Input data set: GSWP3-W5E5



Protocol relation: Protocol
Data Type: Observed atmospheric climate
Simulation rounds: ISIMIP3a, ISIMIP2a
Description:

W5E5 global meteorological forcing data processed for ISIMIP2a/ISIMIP3a.

Scenarios: hist-obs
Variables: huss, tasmax, tas, tasmin, rlds, wind, rhs, rsds, ps, pr
Data source

W5E5 global meteorological forcing data processed for ISIMIP2a/ISIMIP3a. 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).

In order to minimize discontinuities at the 1978/1979 transition, GSWP3 data were homogenized with W5E5 data for 1901-1978 using the ISIMIP2BASD v2.3 bias adjustment method (https://doi.org/10.5281/zenodo.3648654).

**ISIMIP2a update**:
Combination of W5E5 v1.0 for 1979-2016 with GSWP3 v0.5b homogenized to W5E5 for 1901-1978. The homogenization reduces discontinuities at the 1978/1979 transition and was done using the ISIMIP3BASD v2.4.1 bias adjustment method (Lange, 2019; Lange, 2020).

**ISIMIP3a update**:
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 (Lange, 2019; Lange, 2020b). ISIMIP3a counterfactual data for impact attribution is produced using the ATTRICI v1.1 detrending method (https://doi.org/10.5194/gmd-14-5269-202).

For further information, see:
- 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 v2.4.1. Zenodo, doi:10.5281/zenodo.3898426.
- Lange, S. (2020b). ISIMIP3BASD v2.5.0. Zenodo, doi:10.5281/zenodo.4686991.
- 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).

Caveats

ISIMIP3a: Last replaced on May 13, 2021.
ISIMIP2a: Last replaced on June 18, 2020.
Further information at https://www.isimip.org/gettingstarted/input-data-changelog/

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:
- Lange, S. (2019). WFDE5 over land merged with ERA5 over the ocean (W5E5). V. 1.0. doi:10.5880/pik.2019.023
- 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.

When referring to the ISIMIP3BASD bias adjustment method, the following paper should be cited:
- Lange, S.: Trend-preserving bias adjustment and statistical downscaling with ISIMIP3BASD (v1.0), Geosci. Model Dev., 12, 3055–3070, https://doi.org/10.5194/gmd-12-3055-2019, 2019.

When referring to the ATTRICI detrending method, the following paper should be cited:
- Mengel, M., Treu, S., Lange, S., and Frieler, K.: ATTRICI v1.1 – counterfactual climate for impact attribution, Geosci. Model Dev., 14, 5269–5284, https://doi.org/10.5194/gmd-14-5269-2021, 2021.

Download Instructions

For ISIMIP participants, these files are available for download on the DKRZ server using the paths:
* ISIMIP2a: /ISIMIP/ISIMIP2a/InputData/climate_co2/climate/HistObs/GSWP3-W5E5/
* ISIMIP3a: /ISIMIP/ISIMIP3a/InputData/climate/atmosphere/obsclim/global/daily/historical/GSWP3-W5E5/

For external users, these data are made available on the ISIMIP ESGF server (https://esg.pik-potsdam.de/search/isimip/?model=GSWP3-W5E5&dataset_type=Climate%20atmosphere%20observed).

Publication is also planned on the ISIMIP repository soon (https://data.isimip.org/).