Heat Correction (IMAGE) Duke University Caption These four maps show original and corrected heat measurements and estimates for Durham County. Note how the areas without any weather stations – marked with grey lines in the second map, are also those with the hottest and most underestimated weather conditions. Credit Zach Calhoun, Duke University Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.