: NOAA Physical Sciences Laboratory

+ / -

	Variable	Statistic	Level	TimeScale	Options
Loading

Please note: If you acquire data products from PSL, we ask that you acknowledge us in your use of the data. This may be done by including text such as data provided by the NOAA PSL, Boulder, Colorado, USA, from their website at https://psl.noaa.gov in any documents or publications using these data. We would also appreciate receiving a copy of the relevant publications. This will help PSL to justify keeping the data freely available online in the future. Thank you!

Twentieth Century Reanalysis (V1): Opportunities for Improvement

Sea level pressure files contained missing data from 195x - 1958. Data online since 03/18/2009 has been corrected.
A collection of pressure observations from the Australia Bureau of Meteorology for 1908-1949 was assimilated 16 to 20 hours after the observation time. The observation time will be corrected in a future release.
The longitude of 164E was duplicated in all files and 166E was missing. All files have been fixed and are online since 03/17/2009.
Tropopause geopotential heights spreads were replaced 2009/07/13, as the values were very wrong.
Tropopause pressure spreads were removed 2009/09/24, as they had been mispacked.

: NOAA Physical Sciences Laboratory

+ / -

	Variable	Statistic	Level	TimeScale	Options
Loading

Please note: If you acquire data products from PSL, we ask that you acknowledge us in your use of the data. This may be done by including text such as data provided by the NOAA PSL, Boulder, Colorado, USA, from their website at https://psl.noaa.gov in any documents or publications using these data. We would also appreciate receiving a copy of the relevant publications. This will help PSL to justify keeping the data freely available online in the future. Thank you!

Download and Plot Data