what do you think? Is the weather map 500hpa or something?

1. There is a sign at the bottom of each weather map, indicating which layer of isobaric surface.

2. You can tell by just looking at the isoline in the picture.

There is the symbol of cold and warm fronts on the ground map, and the sea level pressure is about 1000, which means the equivalence of 00.0 and 02.5. ...

The isoline value of 850 hectopascals is about 1400, and the labels are ...136,140,144. ...

The isoline value of 700hPa is about 3000, marked ... 320, 324, 328. ...

The contour value of 500 hectopascals is about 5800, and the numbers are ... 576, 580, 584, etc.

The isobar spacing in the above isobar diagram is 4 potential meters, and the isobar spacing in the ground diagram is 2.5 hectopascals.