Label | Explanation | Data Type |
Input Multidimensional Raster | The input multidimensional raster dataset. Supported inputs are netCDF, GRIB, HDF, CRF, and Zarr files, a multidimensional mosaic dataset, a multidimensional image service, an OPeNDAP URL, or a multidimensional raster layer. Note:A Zarr file must have an extension of .zarr and a .zgroup file in the folder. | Raster Dataset; Raster Layer; Mosaic Dataset; Mosaic Layer; Image Service; File |
Output Multidimensional Raster Layer
| The output multidimensional raster layer. | Raster Layer |
Variables (Optional) | The variables that will be included in the output multidimensional raster layer. If no variable is specified, the first variable will be used. | String |
Dimension Definition
(Optional) | Specifies the method that will be used to slice the dimension.
| String |
Range (Optional) | The range or list of ranges for the specified dimension. The data will be sliced based on the dimension name and the minimum and maximum values for the range. This parameter is required when the Dimension Definition parameter is set to By Ranges. | Value Table |
Values
(Optional) | A list of values for the specified dimension. This parameter is required when the Dimension Definition parameter is set to By Values. | Value Table |
Dimension
(Optional) | The dimension along which the variables will be sliced. This parameter is required when the Dimension Definition parameter is set to By Iteration. | String |
Start of first iteration (Optional) | The beginning of the first interval. This interval will be used to iterate through the dataset. This parameter is required when the Dimension Definition parameter is set to By Iteration. | String |
End of first iteration (Optional) | The end of the first interval. This interval will be used to iterate through the dataset. This parameter is required when the Dimension Definition parameter is set to By Iteration. | String |
Step
(Optional) | The frequency with which the data will be sliced. This parameter is required when the Dimension Definition parameter is set to By Iteration. | Double |
Unit
(Optional) | Specifies the iteration unit that will be used. This parameter is required when the Dimension Definition parameter is set to By Iteration and the Dimension parameter is set to StdTime.
| String |
Extent
(Optional) | The extent (bounding box) of the layer. Choose the appropriate Extent option for the layer.
| Extent |
Dimensionless
(Optional) | Specifies whether the layer will have dimension values. This parameter is only active if a single slice is selected to create a layer.
| Boolean |
Spatial Reference (Optional) | The coordinate system for the Output Multidimensional Raster Layer parameter value. This parameter only applies when the Input Multidimensional Raster parameter value is in Zarr format. Use this parameter to define the spatial reference if it is missing in the data. | Coordinate System |
Summary
Creates a raster layer from a multidimensional raster dataset or a multidimensional raster layer by slicing data along defined variables and dimensions.
Usage
This tool creates a multidimensional raster layer from a multidimensional raster or mosaic dataset by extracting a subset of variables. For example, you have a mosaic dataset that contains 30 years of monthly precipitation data, and you only want to extract data for each January to see how precipitation has changed for that month.
Supported multidimensional raster datasets include Cloud Raster Format (CRF), multidimensional mosaic datasets, or multidimensional raster layers generated by netCDF, GRIB, or HDF files.
This tool generates a temporary layer that will not persist unless it's saved to disk.
Use the Dimension Definition parameter to slice dimensions using an interval, a value, or a range of values. For example, if you have 10 years of ocean salinity data, collected monthly and at every 2 meters depth up to 500 meters, you can use the different dimension definition options for the following scenarios:
- Extract salinity data for the month of January over the 10-year period. Choose By Values, set Dimension to StdTime, and set Values to January.
- Slice salinity data over a depth range from 0 to 150 meters. Choose By Ranges, set Dimension to StdZ, and set Minimum Value to -150 and Maximum Value to 0.
- Extract salinity data for the first 10 days of January over a 10-year period. Choose By Iteration, set Dimension to StdTime, set Start of first iteration and End of first iteration to the corresponding start and end of the iteration period, set Step to 1, and set Unit to Years.
To create a nonmultidimensional layer that contains data from a single slice of the multidimensional raster, choose By Values for the Dimension Definition parameter, select a single dimension value, and check the Dimensionless parameter.
Parameters
arcpy.md.MakeMultidimensionalRasterLayer(in_multidimensional_raster, out_multidimensional_raster_layer, {variables}, {dimension_def}, {dimension_ranges}, {dimension_values}, {dimension}, {start_of_first_iteration}, {end_of_first_iteration}, {iteration_step}, {iteration_unit}, {template}, {dimensionless}, {spatial_reference})
Name | Explanation | Data Type |
in_multidimensional_raster | The input multidimensional raster dataset. Supported inputs are netCDF, GRIB, HDF, CRF, and Zarr files, a multidimensional mosaic dataset, a multidimensional image service, an OPeNDAP URL, or a multidimensional raster layer. Note:A Zarr file must have an extension of .zarr and a .zgroup file in the folder. | Raster Dataset; Raster Layer; Mosaic Dataset; Mosaic Layer; Image Service; File |
out_multidimensional_raster_layer | The output multidimensional raster layer. | Raster Layer |
variables [variables,...] (Optional) | The variables that will be included in the output multidimensional raster layer. If no variable is specified, the first variable will be used. | String |
dimension_def (Optional) | Specifies the method that will be used to slice the dimension.
| String |
dimension_ranges [dimension_ranges,...] (Optional) | The range or list of ranges for the specified dimension. The data will be sliced based on the dimension name and the minimum and maximum values for the range. This parameter is required when the dimension_def parameter is set to BY_RANGES. | Value Table |
dimension_values [dimension_values,...] (Optional) | A list of values for the specified dimension. This parameter is required when the dimension_def parameter is set to BY_VALUE. | Value Table |
dimension (Optional) | The dimension along which the variables will be sliced. This parameter is required when the dimension_def parameter is set to BY_ITERATION. | String |
start_of_first_iteration (Optional) | The beginning of the first interval. This interval will be used to iterate through the dataset. This parameter is required when the dimension_def parameter is set to BY_ITERATION. | String |
end_of_first_iteration (Optional) | The end of the first interval. This interval will be used to iterate through the dataset. This parameter is required when the dimension_def parameter is set to BY_ITERATION. | String |
iteration_step (Optional) | The frequency with which the data will be sliced. This parameter is required when the dimension_def parameter is set to BY_ITERATION. | Double |
iteration_unit (Optional) | Specifies the iteration unit that will be used. This parameter is required when the dimension_def parameter is set to BY_ITERATION and the dimension parameter is set to StdTime.
| String |
template (Optional) | The extent (bounding box) of the layer. Choose the appropriate Extent option for the layer.
| Extent |
dimensionless (Optional) | Specifies whether the layer will have dimension values. This parameter is only enabled if a single slice is selected to create a layer.
| Boolean |
spatial_reference (Optional) | The coordinate system for the out_multidimensional_raster_layer parameter value. This parameter only applies when the in_multidimensional_raster parameter value is in Zarr format. Use this parameter to define the spatial reference if it is missing in the data. | Coordinate System |
Code sample
Extract a subset of variables from a multidimensional raster using the BY_RANGES method.
# Import system modules
import arcpy
# Execute
arcpy.md.MakeMultidimensionalRasterLayer(
"C:\data\Ocean_Data.crf", "C:\data\Salinity_MultidimLayer.crf",
"salinity", "BY_RANGES", "StdZ -500 -100",
"120.084279939743 0.914964278021376 139.524470909773 21.1231086159414")
Extract the water temperature variable from a multidimensional raster for specific depth values using the BY_VALUE method.
# Import system modules
import arcpy
# Define input parameters
in_multidimensional_raster = r"C:\data\MD_Ocean_data.crf"
out_multidimensional_raster_layer = r"C:\data\Temp_slice.crf"
variables = "water_temp"
dimension_def = "BY_VALUE"
dimension_values = "StdZ -50;StdZ -100"
template = "120.084279939743 0.914964278021376 139.524470909773 21.1231086159414"
#Execute
arcpy.md.MakeMultidimensionalRasterLayer(
in_multidimensional_raster, out_multidimensional_raster_layer, variables,
dimension_def, dimension_values, template)
Extract the Salinity variable from a multidimensional raster using the BY_ITERATION method.
# Import system modules
import arcpy
# Set local variables
in_multidimensional_raster = r"C:\data\MD_Ocean_data.crf"
out_multidimensional_raster_layer = r"C:\data\salinity_slice.crf"
variables = "salinity"
dimension_def = "BY_ITERATION"
dimension = "StdTime"
start_of_first_iteration = "2009-01-01"
end_of_first_iteration = "2009-01-10"
iteration_step = "1"
iteration_unit = "YEARS"
template = "120.084279939743 0.914964278021376 139.524470909773 21.1231086159414"
#Execute
arcpy.md.MakeMultidimensionalRasterLayer(
in_multidimensional_raster, out_multidimensional_raster_layer,
variables, dimension_def, dimension, start_of_first_iteration,
end_of_first_iteration, iteration_step, iteration_unit, template)
Environments
Licensing information
- Basic: Yes
- Standard: Yes
- Advanced: Yes