| References | |
|---|---|
| official web page | http://www.cgd.ucar.edu/cas/catalog/climind/pdsi.html |
| Climate Explorer URL | climexp.knmi.nl/select.cgi?sc_pdsi |
| Climate Explorer filename | UCARData/pdsisc.monthly.maps.1850-2018.fawc-1.r2.5x2.5.ipe-2.nc |
| Variable | |
| name | sc_PDSI_pm |
| units | |
| long_name | Monthly Self-calibrated Palmer Drought Severity Index using Penman-Monteith PE |
| Netcdf global metadata | |
| CDI | Climate Data Interface version 1.9.9rc1 (mpimet.mpg.de/cdi) |
| history | Mon Jan 30 13:01:36 2023: cdo -r -f nc4 -z zip settaxis,1850-01-01,12:00,1month pdsisc.monthly.maps.1850-2018.fawc-1.r2.5x2.5.ipe-2-ORIGINAL.nc pdsisc.monthly.maps.1850-2018.fawc-1.r2.5x2.5.ipe-2.nc Thu Apr 22 15:36:59 2021: ncatted -a source,global,a,c,www.cgd.ucar.edu/cas/catalog/climind/pdsi.html pdsisc.monthly.maps.1850-2018.fawc-1.r2.5x2.5.ipe-2.nc Fri Apr 16 09:58:15 2021: ncatted -a units,lat,c,c,degrees_north in2.nc Fri Apr 16 09:57:50 2021: ncatted -a units,lon,c,c,degrees_east in2.nc Fri Apr 16 09:57:12 2021: ncatted -a units,time,c,c,years since 0000-01-01 00:00:00 in2.nc |
| source | www.cgd.ucar.edu/cas/catalog/climind/pdsi.html |
| Conventions | NCAR |
| creation_time | Fri Mar 29 13:58:09 EDT 2019 |
| source_file | tmp2/DaiP_4.02/pdsisc.monthly.maps.1850-2018.fawc=1.r2.5x2.5.ipe=2 |
| description | Monthly Self-calibrated Palmer Drought Severity Index (scPDSI) calculated using observed surface air temperature (HadCRUT4 from www.cru.uea.ac.uk/cru/data/temperature/ ) and precipitation (from Dai et al. (1997, J.Clim: for 1870-1947) + Chen et al. (2002, J. Hydromet.: for 1948-1978 + GPCP v2.2 for 1979-present. The Dai and Chen P data were adjusted to have the same mean as the GPCP data over the 1979-1996 period). Calibration (or reference) period is 1950-1979. Documention: 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.\t\t\t 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. Data source: Dr. A. Dai/NCAR (adai@ucar.edu). See http://www.cgd.ucar.edu/cas/catalog/climind/pdsi.html for updates. WARNING: PDSI and scPDSI over the higher latitudes (e.g., >50deg.) may not be a good proxy of soil moisutre content. Also, PDSI and scPDSI are highly autocorrelated indices not good at resolving sub-seasonal variations. Please use with caution! |
| NCO = netCDF Operators version 4.9.4 (Homepage = nco.sf.net, Code | http://github.com/nco/nco) |
| geospatial_lat_min | -60.f |
| geospatial_lat_max | 77.5f |
| geospatial_lat_units | degrees_north |
| geospatial_lon_min | -180.f |
| geospatial_lon_max | 180.f |
| geospatial_lon_units | degrees_east |
| geospatial_lat_resolution | 2.5f |
| geospatial_lon_resolution | 2.5f |
| time_coverage_start | 1850-01-15 |
| time_coverage_end | 2018-12-15 |
| climexp_url | climexp.knmi.nl/select.cgi?sc_pdsi |
| CDO | Climate Data Operators version 1.9.9rc1 (mpimet.mpg.de/cdo) |