README: Read for description of variables in JGR_output_timemean.npz

'lat_LR': latitude vector corresponding to CESM1-LR and JRA55-LR moc sigma
'lat_HR': latitude vector corresponding to CESM1-HR and JRA55-HR moc sigma
'sig_moc_LR': sigma bins vector corresponding to CESM1-LR moc sigma
'sig_moc_HR': sigma bins vector corresponding to CESM1-HR moc sigma
'sig_moc_JRA55': sigma bins vector corresponding to JRA55-LR and HR moc sigma
'CESM1_LR_moc_sigma': CESM1 LR time-mean moc sigma
'CESM1_HR_moc_sigma': CESM1 HR time-mean moc sigma
'JRA55_LR_moc_sigma': JRA55 LR time-mean moc sigma
'JRA55_HR_moc_sigma': JRA55 HR time-mean moc sigma
'CESM1_LR_Fhlab': CESM1 LR time-mean thermal WMT in Labrador Sea
'CESM1_LR_Fslab': CESM1 LR time-mean haline WMT in Labrador Sea
'CESM1_LR_Fhgin': CESM1 LR time-mean thermal WMT in GIN Seas
'CESM1_LR_Fsgin': CESM1 LR time-mean haline WMT in GIN Seas
'CESM1_LR_Fhirmice': CESM1 LR time-mean thermal WMT in IIB
'CESM1_LR_Fsirmice': CESM1 LR time-mean haline WMT in IIB
'CESM1_HR_Fhlab': CESM1 HR time-mean thermal WMT in Labrador Sea
'CESM1_HR_Fslab': CESM1 HR time-mean haline WMT in Labrador Sea
'CESM1_HR_Fhgin': CESM1 HR time-mean thermal WMT in GIN Seas
'CESM1_HR_Fsgin': CESM1 HR time-mean haline WMT in GIN Seas
'CESM1_HR_Fhirmice': CESM1 HR time-mean thermal WMT in IIB
'CESM1_HR_Fsirmice': CESM1 HR time-mean haline WMT in IIB
'JRA55_LR_Fhlab': JRA55 LR time-mean thermal WMT in Labrador Sea
'JRA55_LR_Fslab': JRA55 LR time-mean haline WMT in Labrador Sea
'JRA55_LR_Fhgin': JRA55 LR time-mean thermal WMT in GIN Seas
'JRA55_LR_Fsgin': JRA55 LR time-mean haline WMT in GIN Seas
'JRA55_LR_Fhirmice': JRA55 LR time-mean thermal WMT in IIB
'JRA55_LR_Fsirmice': JRA55 LR time-mean haline WMT in IIB
'JRA55_HR_Fhlab': JRA55 HR time-mean thermal WMT in Labrador Sea
'JRA55_HR_Fslab': JRA55 HR time-mean haline WMT in Labrador Sea
'JRA55_HR_Fhgin': JRA55 HR time-mean thermal WMT in GIN Seas
'JRA55_HR_Fsgin': JRA55 HR time-mean haline WMT in GIN Seas
'JRA55_HR_Fhirmice': JRA55 HR time-mean thermal WMT in IIB
'JRA55_HR_Fsirmice': JRA55 HR time-mean haline WMT in IIB
'CESM1_LR_LFP': CESM1 LR LFP of moc sigma
'CESM1_HR_LFP': CESM1 HR LFP of moc sigma
'CESM1_LR_LFC': CESM1 LR LFC of moc sigma
'CESM1_HR_LFC': CESM1 HR LFC of moc sigma
'sigmabins': sigma bin vector corresponding to WMT
'lat_LFC_LR': latitude vector corresponding to CESM1 LR LFC
'lat_LFC_HR': latitude vector corresponding to CESM1 HR LFC