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 2016 Interim: olr-daily_v01r02-preliminary_20160101_latest.nc
Year 2015 Final: olr-daily_v01r02_20150101_20151231.nc
Year 2014 Final: olr-daily_v01r02_20140101_20141231.nc
Year 1979-2013 Final: NCDC Daily OLR CDR Data Server

Latest Daily OLR Field
Link to Animation of Interim Daily OLR fields for Year 2016
Link to Animation of Final Daily OLR fields for Year 2015
Link to 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_201607.nc (updated monthly on the 5th)
Latest Monthly OLR Field (v02r07)
Link to 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

Read me for Daily OLR CDR v01r02
Climate Algorithm Theoretical Basis Document (C-ATBD) for Daily OLR CDR v01r02
Climate Algorithm Theoretical Basis Document (C-ATBD) for Monthly OLR CDR v02r02-1 (update for v02r07 in progress)
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



Related Sites

NCDC CDR Program Homepage
Daily OLR CDR NCDC Data Server
Monthly OLR CDR NCDC Data Server
NOAA NCDC News release
NCAR/UCAR Climate Data Guide
CICS-NC: Monitoring the MJO and Tropical Waves