I need the air temperature values 500 m above ground level. Using ERA5, i would choose the temperature data from at a pressure level of 950 hPa. Is this correct?
But this pressure level is relative to mean sea level, right?. What do the Temp 950hPa values mean when the terrain is above 500 m or 1000 masl? Shouldn't they be NA in these zones if they are interpolated from the surface values?
