6.3.4. Reprojection
6.3.4.1. Operation
- Operation name
Reprojection
- Description
This Operation converts spatial data from one coordinate system to another.
- Utilised in
6.3.4.2. Options
- name
coordinate system
- description
requested coordinate system
- items
UTM, geographic, regular lat-lon, polar centred, sinusoidal, tripolar, …
- name
ellipsoid
- description
requested ellipsoid
- items
WGS84, GRS80, Bessel, Clarke
- name
reprojection method
- description
method for reprojecting the data
- items
nearest neighbor (primarily for thematic maps), bilinear, cubic convolution
- name
propagation of uncertainties
- description
analysis of propagation of uncertainties during geometric adjustment
6.3.4.3. Input data
- name
longitude (lon, x)
- type
floating point number
- range
[-180.; +180.] respectively [0.; 360.]
- dimensionality
vector
- description
grid information on longitudes
- name
latitude (lat, y)
- type
floating point number
- range
[-90.; +90.]
- dimensionality
vector
- description
grid information on latitudes
- name
height (z)
- type
floating point number
- range
[-infinity; +infinity]
- dimensionality
vector
- description
grid information on height/depth
- name
variable
- type
floating point number
- range
[-infinity; +infinity]
- dimensionality
cube or 4D
- description
values of a certain variable
6.3.4.4. Output data
- name
adjusted longitude (lon’, x’)
- type
floating point number
- range
[-180.; +180.] respectively [0.; 360.]
- dimensionality
vector
- description
new grid information on longitudes
- name
adjusted latitude (lat’, y’)
- type
floating point number
- range
[-90.; +90.]
- dimensionality
vector
- description
new grid information on latitudes
- name
adjusted height (z’)
- type
floating point number
- range
[-infinity; +infinity]
- dimensionality
vector
- description
new grid information on height/depth
- name
adjusted variable
- type
floating point number
- range
[-infinity; +infinity]
- dimensionality
cube or 4D
- description
new values of a certain variable
6.3.4.5. Parameters
- name
nx
- type
integer
- valid values
[1; infinity]
- default value
number of longitudes in dataset
- description
original number of longitudes
- name
ny
- type
integer
- valid values
[1; infinity]
- default value
number of latitudes in dataset
- description
original number of latitudes
- name
nz
- type
integer
- valid values
[1; infinity]
- default value
number of altitude levels in dataset
- description
original number of altitude levels
- name
nx’
- type
integer
- valid values
[1; infinity]
- default value
- description
adjusted number of longitudes
- name
ny’
- type
integer
- valid values
[1; infinity]
- default value
- description
adjusted number of latitudes
- name
nz’
- type
integer
- valid values
[1; infinity]
- default value
- description
adjusted number of altitude levels
- name
size of sliding window
- type
integer
- valid values
[1; infinity], odd numbers
- default value
3
- description
side length of the sliding window used for interpolation (e.g. 3x3, 9x9)
- name
original coordinate system
- description
definition of original coordiate system
- name
adjusted coordinate system
- description
definition of requested coordiate system