Supplementary Website

 

Cook, B.I., J.E. Smerdon, R. Seager and S. Coats, 2014: Global warming and 21st century drying, Climate Dynamics, in press, DOI:10.1007/s00382-014-2075-y.

From Figure 11 in Cook et al. (2014): Multi-model mean PDSI-ALL (a) and SPEI-ALL (b) for 2080-2099. For PDSI, cross hatching indicates cells where, for multi-model mean PDSI anomalies exceeding -1 or +2, at least 12 of the 15 models (80%) also exceed these thresholds. For SPEI, the cross-hatching threshold is for 80% agreement with threhold values of -0.5 or +0.5 in the multi-model mean.

 

This website serves as a data portal for the PDSI and SPEI model fields presented and analyzed in the paper listed above. The data access is provided by the Ingrid-based data portal which is maintained and supported by the IRI/LDEO Climate Data Library and the Division of Ocean and Climate Physics at the LDEO. Links to the individual model fields are provided in the below table (please see Table 1 in our paper for more information on the CMIP5 models that are included in our analysis), but also can be accessed through the main Ingrid data porthole. At each of the model links you will find PDSI and SPEI fields that correspond to the ALL, PRE, PET, RNET and VPD versions of the fields presented in our paper. For those models that have performed ensemble simulations, the individual ensemble members are provided for each of the above listed versions of the fields. Links to dowload the data in multiple file formats are provided at numerous points within the Ingrid pages.

 

Data Files
Data Overview Page
Individual PDSI Fields by Model
CanESM2
CCSM4
CNRM-CM5
CSRIO-MK3.6.0
GFDL-CM3
GFDL-ESM2G
GFDL-ESM2M
GISS-E2-R
INMCM4.0
IPSL-CM5A-LR
MIROC5
MIROC-ESM
MIROC-ESM-CHEM
MRI-CGCM3
NorESM1-M
Individual SPEI Fields by Model
CanESM2
CCSM4
CNRM-CM5
CSRIO-MK3.6.0
GFDL-CM3
GFDL-ESM2G
GFDL-ESM2M
GISS-E2-R
INMCM4.0
IPSL-CM5A-LR
MIROC5
MIROC-ESM
MIROC-ESM-CHEM
MRI-CGCM3
NorESM1-M

 

We acknowledge the World Climate Research Programme’s Working Group on Coupled Modelling, which is responsible for CMIP, and we thank the climate modeling groups for producing and making available their model output. For CMIP, the U.S. Department of Energy’s Program for Climate Model Diagnosis and Intercomparison provides coordinating support and led development of software infrastructure in partnership with the Global Organization for Earth System Science Portals.  

Haibo Liu and Naomi Henderson provided computational support at LDEO, and Naomi Henderson was integral in preparing the online data archive of our PDSI and SPEI fields. RS and JES were supported in part by the NOAA award Global Decadal Hydroclimate Variability and Change (NA10 OAR431037). RS was also supported by DOE award DE-SC0005107. Further support came from NSF award AGS-1243204.

Website Version Posted on March 20th, 2014