Outgoing Longwave Radiation Climate Data Record
UMD OLR CDR Portal
Current time:
(Day of Year=)
Products:
1. Daily Mean OLR
- Spatial resolution: 1°x1° equal-angle grid
Temporal coverage: 1979.01.01 - day before yesterday
Refresh rate: daily (36-hr lag)
Observation sources: High-resolution Infrared Radiation Sounder (HRIS) on-board NOAA TIROS-N series and Eumetsat MetOp-A/B polar-orbiting satellites; Imagers on-board operational geostationary satellites (via Gridsat CDR and NESDIS GSIP products)
Version info: v01r02 (final CDR); v01r02-preliminary (interim CDR, 2-day lag)
Data access:
Year 2018 Interim: olr-daily_v01r02-preliminary_20180101_latest.nc
Year 2017 Interim: olr-daily_v01r02-preliminary_20170101_20171231.nc
Year 2016 Final: olr-daily_v01r02_20160101_20161231.nc
Year 1979-2015 Final: NCDC Daily OLR CDR Data Server
Year 1979-2016 Final, Concatenated: olr-daily_v01r02_19790101_20161231.nc
Animation of Interim Daily OLR fields for Year 2018
Animation of Interim Daily OLR fields for Year 2017Animation of Final Daily OLR fields for Year 2016
Animation of Final Daily OLR fields for Year 2015
Animation of Final Daily OLR fields for Year 2014
2. Monthly Mean OLR
- Spatial resolution: 2.5°x2.5° equal-angle grid
Temporal coverage: January 1979 - last month
Refresh rate: monthly (on the 5th of the month)
Observation sources: High-resolution Infrared Radiation Sounder (HIRS) on-board NOAA TIROS-N series and Eumetsat MetOp-A/B polar-orbiting satellites
Version info: v02r07 (new, replacing v02r02-1 since July 2018)
Data access (1979-present, updated monthly on the 5th):
v02r07: olr-monthly_v02r07_197901_latest.nc (updated monthly on the 5th)
Animation of Monthly OLR fields for 1979 to present
Please contact Dr. Hai-Tien Lee lee@umd.edu for any questions.
OLR CDR products are funded in part by NOAA National Centers for Environmental Information (NCEI) Climate Data Record (CDR) Program.