Month (120 values)
1990-01
1990-02
1990-03
1990-04
1990-05
1990-06
1990-07
1990-08
1990-09
1990-10
1990-11
1990-12
1991-01
1991-02
1991-03
1991-04
1991-05
1991-06
1991-07
1991-08
1991-09
1991-10
1991-11
1991-12
1992-01
1992-02
1992-03
1992-04
1992-05
1992-06
1992-07
1992-08
1992-09
1992-10
1992-11
1992-12
1993-01
1993-02
1993-03
1993-04
1993-05
1993-06
1993-07
1993-08
1993-09
1993-10
1993-11
1993-12
1994-01
1994-02
1994-03
1994-04
1994-05
1994-06
1994-07
1994-08
1994-09
1994-10
1994-11
1994-12
1995-01
1995-02
1995-03
1995-04
1995-05
1995-06
1995-07
1995-08
1995-09
1995-10
1995-11
1995-12
1996-01
1996-02
1996-03
1996-04
1996-05
1996-06
1996-07
1996-08
1996-09
1996-10
1996-11
1996-12
1997-01
1997-02
1997-03
1997-04
1997-05
1997-06
1997-07
1997-08
1997-09
1997-10
1997-11
1997-12
1998-01
1998-02
1998-03
1998-04
1998-05
1998-06
1998-07
1998-08
1998-09
1998-10
1998-11
1998-12
1999-01
1999-02
1999-03
1999-04
1999-05
1999-06
1999-07
1999-08
1999-09
1999-10
1999-11
1999-12
Level (16 values)
265
275
285
300
315
320
330
350
370
395
430
475
530
600
700
850
Parameter (9 values)
Divergence
Montgomery potential
Ozone mass mixing ratio
Potential vorticity
Pressure
Specific humidity
U component of wind
V component of wind
Vorticity (relative)