| References | |
|---|---|
| Climate Explorer URL | climexp.knmi.nl/getindices.cgi?WMO=UCARData/snao_ucar&STATION=SNAO_ucar |
| Climate Explorer filename | UCARData/snao_ucar.dat |
| Variable | |
| name | SNAO |
| units | 1 |
| long_name | UCAR Summer NAO |
| Ascii global metadata | |
| description | Summer NAO index (PC of first EOF of SLP over 40-70N, 90W-30E July-August average over 1950-2010), based on the UCAR (Trenbert and Paolino) sea-level pressure reconstruction, SNAO [1] UCAR Summer NAO, |
| file | ds010_1.nc |
| title | Monthly Northern Hemisphere Sea-Level Pressure Grids |
| nco | netCDF Operators version 5.1.0 (Homepage = nco.sf.net, Code = http://github.com/nco/nco) |
| description | This dataset contains the longest continuous time series of monthly gridded Northern Hemisphere sea-level pressure data in the DSS archive. The 5-degree latitude/longitude grids, computed from the daily grids in ds010.0 [rda.ucar.edu/datasets/ds010.0/], begin in 1899 and cover the Northern Hemisphere from 15N to the North Pole. The dataset continues to be updated regularly as new data become available. Each monthly grid is a simple average of all available daily grids for the month. Prior to 1955, there is one grid per day. From July 1962 on, there are two grids each day. In the interim period, the number of daily grids varies between one and two. The grids for the period 1899-1977 were inspected and many corrections were made by Kevin Trenberth of the Laboratory of Atmospheric Research at the University of Illinois at Champaign-Urbana, and these grids are included in this dataset. For more information about these corrections, see the July 1980 issue of Monthly |
| institution | KNMI Climate Explorer and NOAA/NCAR |
| source_url | rda.ucar.edu/datasets/ds010.1/ |
| reference | K.E. Trenberth, and D.A. Paolino, 1980: The Northern Hemisphere sea level pressure data set: Trends, errors, and discontinuities. Mon. Wea. Rev., 108, 855-872. doi.org/10.1175/1520-0493(1980)108<0855:TNHSLP>2.0.CO;2 |
| geospatial_lat_min | 12.5 |
| geospatial_lat_max | 90.0 |
| geospatial_lat_units | degrees_north |
| geospatial_lon_min | -2.5 |
| geospatial_lon_max | 357.5 |
| geospatial_lon_units | degrees_east |
| geospatial_lat_resolution | 5.0 |
| geospatial_lon_resolution | 5.0 |
| time_coverage_start | 1899-01-15 |
| time_coverage_end | 2023-07-15 |
| climexp_url | climexp.knmi.nl/select.cgi?trenberthslp |
| pattern_conventions | CF-1.0 |
| pattern_nco | netCDF Operators version 5.0.6 (Homepage = nco.sf.net, Code = http://github.com/nco/nco) |
| pattern_institution | KNMI Climate Explorer and NOAA/NCAR |
| pattern_time_coverage_end | 2022-12-15 |
| pattern_history | user sager 2023-01-24 9:18:06 /nobackup_1/users/sager/ClimateExplorer/climexp_numerical/LINUX/eof ds010_1.nc 1 mon 7 ave 2 begin 1950 end 2010 lon1 -90 lon2 30 lat1 40 lat2 70 snao_ucar.nc Tue Jan 24 09:18:06 2023: ncks -v slp ds010_1_all.nc ds010_1.nc |
| pattern_title | Monthly Northern Hemisphere Sea-Level Pressure Grids |
| pattern_file | snao_ucar.nc |
| history | user sager 2023-09-10 23:47:14 /nobackup_1/users/sager/ClimateExplorer/climexp_numerical/LINUX/patternfield ds010_1.nc snao_ucar.nc eof1 7 Sun Sep 10 23:47:14 2023: ncks -v slp ds010_1_all.nc ds010_1.nc |