Dai Global Palmer Drought Severity Index (PDSI)

This dataset consists of monthly Palmer Drought Severity Index (PDSI) over global land areas on a 2.5 degree grid computed using observed monthly surface air temperature and precipitation, plus other surface meteorological forcing data for the self calibrating PDSI Penman Monteith (sc_PDSI_pm) case. Additionally, ensemble mean monthly sc_PDSI_pm data on a 2.5 degree grid has been calculated from 1900-2099 (for CMIP5) and 1900-2100 (for CMIP6) based on one historical and future (under RCP4.5 for CMIP5), and SSP2-4.5 (similar to RCP4.5) and SSP5-8.5 (similar to RCP8.5 for CMIP5) simulation by each of the 14 CMIP5 models and 25 CMIP6 models. These sc_PDSI_pm data from individual runs were simply averaged to produce the multiple model ensemble mean. The PDSI can be used as a measure of surface aridity anomalies and changes on seasonal to longer time scales. It is correlated with observed soil moisture and water storage variations over land.

To Access Resource:

Questions? Email Resource Support Contact:

  • Doug Schuster
    schuster@ucar.edu
    UCAR/NCAR - Research Data Archive

Temporal Range

  • Begin:  1850-01-01T00:00:00Z
    End:  2018-12-31T23:00:00Z

Keywords

Resource Type dataset
Temporal Range Begin 1850-01-01T00:00:00Z
Temporal Range End 2018-12-31T23:00:00Z
Temporal Resolution N/A
Bounding Box North Lat 77.5
Bounding Box South Lat -60
Bounding Box West Long -180
Bounding Box East Long 180
Spatial Representation grid
Spatial Resolution N/A
Related Links N/A
Additional Information N/A
Resource Format NetCDF (Binary)
Standardized Resource Format NetCDF
Asset Size 64.00 MB
Legal Constraints

Use of this dataset is subject to UCAR's Terms of Use, except that commercial use is generally not prohibited.
Access Constraints Registration on the RDA web site is a requirement for access to the data.
Software Implementation Language N/A

Resource Support Name Doug Schuster
Resource Support Email schuster@ucar.edu
Resource Support Organization UCAR/NCAR - Research Data Archive
Distributor NCAR Research Data Archive
Metadata Contact Name N/A
Metadata Contact Email rdahelp@ucar.edu
Metadata Contact Organization NCAR Research Data Archive

Author Dai, Aiguo
Publisher Research Data Archive at the National Center for Atmospheric Research, Computational and Information Systems Laboratory
Publication Date 2017-05-01
Digital Object Identifier (DOI) https://doi.org/10.5065/D6QF8R93
Alternate Identifier ds299.0
Resource Version N/A
Topic Category climatologyMeteorologyAtmosphere
Progress onGoing
Metadata Date 2024-01-14T22:05:02-07:00
Metadata Record Identifier edu.ucar.rda::ds299.0
Metadata Language eng; USA
Suggested Citation Dai, Aiguo. (2017). Dai Global Palmer Drought Severity Index (PDSI). Research Data Archive at the National Center for Atmospheric Research, Computational and Information Systems Laboratory. https://doi.org/10.5065/D6QF8R93. Accessed 19 April 2024.

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