NOAA Climate Data Record (CDR) of Monthly Outgoing Longwave Radiation (OLR), Version 2.2-1. CLIMATE APPLICATIONS: Earth Radiation Budget Tropical dynamics (ENSO, MJO, tropical expansion) Precipitation Climate model verification Solar Energy Forecast. OFFICIAL CITATION: Hai-Tien Lee and NOAA CDR Program (2011): NOAA Climate Data Record (CDR) of Monthly Outgoing Longwave Radiation (OLR), Version 2.2-1. [indicate subset used]. NOAA National Climatic Data Center. doi:10.7289/V5222RQP [access date].