2018 China heatwave maps (IMAGE) University of Reading Caption Observed heatwave characteristics in north-east China - 12 Jul to 10 Aug 2018. (L) Locations with record-breaking and second highest values since 1961 are shown with black and blue dots, respectively (R) Circulation field from ERA-interim with specific humidity anomalies (shading, unit: g/kg) and 850-hPa moisture flux anomalies (vectors). The light black contours denote the 500-hPa geopotential height anomalies. 12th July - 10th August mean geopotential height (blue lines) and climatology (red lines) are also shown. Credit University of Reading Usage Restrictions None License Licensed 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.