The building maintenance scheduled for Friday February 27th at 5:00pm MST has been postponed until 5:00pm March 6th. PSD's website will be down during the maintenance.
Restrictions | Details | Caveats | File Naming | Citation | References | Original Source | Contact
Palmer Drought Severity Index (PDSI) from NCAR
- Monthly gridded global PDSI (Palmer Drought Severity Index) values from 1850-2010 from NCAR. More Details....
- Irregular, when source updates
|Variable||Statistic||Level||Download File||Create Plot/Subset|
|PDSI||Monthly Mean: self-calibrated||Surface||pdsi.mon.mean.selfcalibrated.nc|
- Please contact the dataset's author to let him know of your intended use email@example.com
PDSI from the Dai dataset. The Palmer Drought
Severity Index (PDSI) is devised by Palmer (1965) to represent the
severity of dry and wet spells over the U.S. based on monthly
temperature and precipitation data as well as the soil-water holding
capacity at that location. These data consist of the monthly PDSI over
global land areas from 1850 to 2010. Different precipitation/temperature datasets are used in the different files.
Update and more information are available at CGD (Climate and Global Dynamics Division).
Please let the author (Dai at firstname.lastname@example.org know what you are using the dataset for.
- pdsi.mon.mean.nc (In directory: /Datasets/dai_pdsi/)
- pdsi.mon.mean.selfcalibrated.nc (In directory: /Datasets/dai_pdsi/)
Dataset Format and Size:
- PSD standard NetCDF 61 Mbyte self-calibrated file
- PSD standard NetCDF 51 Mbyte non self-calibrated file
- Missing data is flagged with a value of -99999.
- Dai, A., K. E. Trenberth, and T. Qian, 2004: A global data set of Palmer Drought Severity Index for 1870-2002: Relationship with soil moisture and effects of surface warming. J. Hydrometeorology, 5, 1117-1130.
- Please note: If you acquire Dai Palmer Drought Severity Index data products from PSD, we ask that you acknowledge us in your use of the data. This may be done by including text such as Dai Palmer Drought Severity Index data provided by the NOAA/OAR/ESRL PSD, Boulder, Colorado, USA, from their Web site at http://www.esrl.noaa.gov/psd/ in any documents or publications using these data. We would also appreciate receiving a copy of the relevant publications. This will help PSD to justify keeping the Dai Palmer Drought Severity Index data set freely available online in the future. Thank you!
- Dai, A., 2011a: Characteristics and trends in various forms of the Palmer Drought Severity Index (PDSI) during 1900-2008. J. Geophys. Res., 116, D12115, doi:10.1029/2010JD015541.
- Dai, A., 2011b: Drought under global warming: A review. Wiley Interdisciplinary Reviews: Climate Change, 2, 45-65. DOI: 10.1002/wcc.81.
- Chen, M., P. Xie, J.E. Janowiak, and P.A. Arkin, 2002: Global land precipitation: a 50-yr monthly analysis based on gauge observations. J. Hydrometeorol., 3, 249-266.
- Dai, A., I. Fung, and A. D. Del Genio, 1997: Surface observed global land precipitation variations during 1900-1988. J. Climate, 10, 2943-2962.
- Dai, A., K. E. Trenberth, and T. Karl, 1998: Global variations in droughts and wet spells: 1900-1995. Geophys. Res. Lett., 25, 3367-3370.
- Dai, A., K. E. Trenberth, and T. Qian, 2004: A global data set of Palmer Drought Severity Index for 1870-2002: Relationship with soil moisture and effects of surface warming. J. Hydrometeorol., in press.
- Jones, P.D., and A. Moberg, 2003: Hemispheric and large-scale surface air temperature variations: An extensive revision and an update to 2001. J. Climate, 16, 206-223.
- Palmer, W. C, 1965: Meteorological Drought. Res. Paper No.45, 58pp., Dept. of Commerce, Washington, D.C.
- Webb, R. S., C. E. Rosenzweig, and E. R. Levine, 1993: Specifying land surface characteristics in general circulation models: soil profile dataset and derived water-holding capacities. Global Biogeochem. Cycles, 7, 97-108.
- NCAR's CGD (Climate and Global Dynamics Division) PDSI webpage
Physical Sciences Division: Data Management
Boulder, CO 80305-3328