Real-time objective analysis of surface data at the Meteorological Development Laboratory
In this presentation, we describe the intensive effort needed to assure the metadata are correct for each location. Because the BCDG analysis differentiates between land and water (i.e., ocean and major lakes), it is essential that each reporting location be tagged as either land, ocean, or inland water, and for stations near the ocean or major lakes, a judgment is many times needed in addition to using high resolution Geographic Information System (GIS) capabilities. One of the features added to the analysis package is the ability to use a report from the previous hour if the site did not report at the analysis hour, and in so doing to account for possible diurnal changes from the previous hour's reports. The analysis method will be reviewed and examples of the analyses of temperature and dewpoint shown.