Jay Lawrimore is Chief of the Data Set Branch in the Center for Weather and Climate at NOAA’s National Centers for Environmental Information (NCEI). He leads efforts to develop data sets that serve the public and private sector’s need for climate information. These efforts are closely tied to the study of climate change, drought monitoring, weather extremes, and economic sectors including energy, agriculture, and engineering. Included among the many data sets developed in his branch are the Global Historical Climatology Network-Monthly and –Daily data sets, and several derived from satellite and radar measurements. These data sets provide the basis for analyses of observed changes in the Earth’s climate that have occurred since the 1800s. Mr. Lawrimore along with other scientists at NCEI and within the broader national and international climate community rely heavily on these data sets to provide perspectives which are essential to climate monitoring and assessments. These include NCEI’s monthly climate reports, annual State of the Climate reports, and assessments conducted as part of the Intergovernmental Panel on Climate Change (IPCC) and the U.S. Global Change Research Program. As part of NCEI’s effort to improve the nation’s capacity to monitor the Earth’s climate, Mr. Lawrimore also supports the U.S. Climate Reference Network program.