Spectral Grid
T
TL
R
=
zonal grid points
N
T
N
TL
I
J
Δx[°]
Δx@EQ [km]
Δx@30° [km]
Δx@60° [km]
Cubed Sphere Grid
NE:
NE
L
min
[km]
Δθ
min
[°]
L
max
[km]
Δθ
max
[°]
L
ave
[km]
Δθ
ave
[°]
A
ave
[km
2
]
Icosahedral Grid
glevel:
glevel
devision
N
c
L
eq
[km]
L
min
[km]
L
ave
[km]
Δθ
ave
[°]
A
ave
[km
2
]
HEALPix
N
θ
:
1
2
3
4
5
N
ϕ
:
1
2
3
4
5
6
N
side
= 2^
N
θ
N
ϕ
k
N
side
pixel
L
eq
[km]
L
ave
[km]
Δθ
ave
[°]
A
ave
[km
2
]
Readme at GitHub repository