CAPE data is available only for forecast in ERA-Interim dataset with parameter ID: 59.128. When a request is submitted pay attention to specify as 'type' = 'fc', otherwise the result of the request would be the vertical integral of kinetic energy (parameter ID 59.162).
CAPE request example Expand source
#!/usr/bin/env python from ecmwfapi import ECMWFDataServer server = ECMWFDataServer() server.retrieve({ "class": "ei", "dataset": "interim", "date": "2018-09-01/to/2018-09-30", "expver": "1", "grid": "0.75/0.75", "levtype": "sfc", "param": "cape", "step": "3", "stream": "oper", "time": "12:00:00", "type": "fc", "target": "output_cape", })