Re: Palmer Drought Severity Index (PDSI) code?

[1] Currently, there is no PDSI or scPDSI function available via NCL.

    A f77 code to calculate the traditional PDSI is at:
      NCDC FORTAN code: ftp://ftp.ncdc.noaa.gov/pub/software/palmer/pdi.f

[2] netCDF PDSI & scPDSI files spanning 1850/01 to 2010/12 are available at:

      http://www.esrl.noaa.gov/psd/data/gridded/data.pdsi.html

    Also see:
https://climatedataguide.ucar.edu/climate-data/palmer-drought-severity-index-pdsi
https://climatedataguide.ucar.edu/climate-data/cru-sc-pdsi-self-calibrating-pdsi-over-europe-north-america

Example 7 at: http://www.ncl.ucar.edu/Applications/cru.shtml

[3] The SPI (Standardized Precipitation Index) is the index recommended
    by the WMO for monitoring drought. See:

      http://www.wmo.int/pages/mediacentre/press_releases/pr_872_en.html

    Also See:
https://climatedataguide.ucar.edu/climate-data/standardized-precipitation-index-spi

[4] The NCL 6.3 release will likely have the SPEI (The Standardized
    Precipitation Evapotranspiration Index) which correlates well with
    the scPDSI. It requires only monthly temperature and precipitation.
    No soil information. See:

https://climatedataguide.ucar.edu/climate-data/standardized-precipitation-evapotranspiration-index-spei
    Read the description.

Some SPEI data available via: http://sac.csic.es/spei/database.html



On Fri, Jun 20, 2014 at 2:00 PM, Mary Haley <haley@ucar.edu> wrote:

> Hi,
>
> I don't know what "self-calibrated" PDSI is, but we do have a function for
> SPI:
>
> http://www.ncl.ucar.edu/Document/Functions/Built-in/dim_spi_n.shtml
>
> You may also want to see our SPI examples page:
>
> http://www.ncl.ucar.edu/Applications/spi.shtml
>
> --Mary
>
>
>
> On Thu, Jun 5, 2014 at 4:11 PM, Mahesh Varma <mkmvarma@gmail.com> wrote:
>
>> Hi,
>> I was just wondering if anybody has written a NCL code to compute
>> self-calibrated Palmer Drought Severity Index(sc_PDSI).
>> Thanks,
>> Mahesh
>>
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Received on Mon Jun 23 01:36:37 2014