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 (HRIS) on-board NOAA TIROS-N series and Eumetsat MetOp-A/B polar-orbiting satellites
Version info: v02r07 (latest revision beta-release); v02r02-1 (current public release)
Data access (1979-present, updated monthly on the 5th):
v02r07: olr-monthly_v02r07_197901_latest.nc
v02r02-1: olr-monthly_v02r02-1_197901_201803.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.
This CDR was funded in part by NOAA's Climate Data Record (CDR) Program located in Asheville, NC at the National Centers for Environmental Information
Documentations
Lee, H.-T., A. Gruber, R. G. Ellingson and I. Laszlo, 2007: Development of the HIRS Outgoing Longwave Radiation climate data set. J. Atmos. Ocean. Tech., 24, 2029–2047.
Climate Algorithm Theoretical Basis Document (C-ATBD) for Monthly OLR CDR v02r02-1 (Obsolete. See v02r07 upgrade)Climate Algorithm Theoretical Basis Document (C-ATBD) for Monthly OLR CDR v02r07
Climate Algorithm Theoretical Basis Document (C-ATBD) for Daily OLR CDR v01r02
Lee, H.-T., 2014: Daily OLR CDR – Development and Evaluation. CERES Science Team Meeting, Apr 2014
Lee, H.-T., 2014: Daily OLR Climate Data Record. EGU General Assembly, Apr 2014
Lee, H.-T., C. J. Schreck, and K. R. Knapp, 2014: Generation of Daily OLR CDR. Eumetsat Meteorological Satellite Conference, Sep 2014
Read me for Daily OLR CDR v01r02