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ee.ImageCollection.loadZarrV2Array
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Loads a Zarr v2 array with 3 or more dimensions (i.e., 1 or more non-spatial dimensions) as an ImageCollection by slicing along a specified non-spatial axis. The array attributes (.zattrs) must contain the field '_ARRAY_DIMENSIONS', which is a list of the names of each dimension (e.g., ['time', 'y', 'x']). There must be at least two dimensions, with the final two representing Y and X respectively (e.g., ['lat', 'lon']). The supported compression codecs are 'blosc', 'gzip', 'lz4', 'zlib', and 'zstd'. The supported blosc meta-compression codecs are 'lz4', lz4hc', 'zlib', and 'zstd' ('blosclz' is not supported).
| Usage | Returns | ee.ImageCollection.loadZarrV2Array(uri, proj, axis, starts, ends) | ImageCollection |
| Argument | Type | Details | uri | String | The Cloud Storage URI of the .zarray file to load. A .zmetadata file must be present in the parent directory of the array's directory (e.g., for 'gs://b/o/.zarray', 'gs://b/.zmetadata' must be present). The bucket metadata must be accessible (requires the `storage.buckets.get` permission which is provided by the role "Storage Legacy Bucket Reader" among others, see https://cloud.google.com/storage/docs/access-control/iam-roles) and the bucket must be located in the US multi-region, a dual-region including US-CENTRAL1, or the US-CENTRAL1 region. |
proj | Projection | The projection of the array. |
axis | Integer, default: null | The non-spatial axis (0-indexed) along which to slice the array to create an ImageCollection. Each image in the collection represents a single slice (length 1) along this axis. If null, defaults to 0. The value must be in the range [0, N-1], where N is the number of non-spatial dimensions (i.e., total dimensions - 2). The array must have at least one non-spatial dimension (i.e., be at least 3 dimensional). |
starts | List, default: null | The indices (inclusive) at which to start taking slices along each non-spatial dimension. If null, slices will start at index 0 for all non-spatial dimensions. If specified, this list must have a length equal to the number of non-spatial dimensions (total dimensions - 2). An individual element within the list may be null, which defaults to 0 for that dimension. Negative indices are counted from the end of the dimension (e.g., -1 is the last element). |
ends | List, default: null | The indices (exclusive) at which to stop taking slices along each non-spatial dimension. If null, slices will extend to the end of each corresponding non-spatial dimension (i.e., defaults to the length of the dimension). If specified, this list must have a length equal to the number of non-spatial dimensions (total dimensions - 2). An individual element within the list may be null, which also defaults to the length of that dimension. Negative indices are counted from the end of the dimension (e.g., -1 is the last element). |
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Last updated 2025-06-23 UTC.
[null,null,["Last updated 2025-06-23 UTC."],[],[],null,["# ee.ImageCollection.loadZarrV2Array\n\nLoads a Zarr v2 array with 3 or more dimensions (i.e., 1 or more non-spatial dimensions) as an ImageCollection by slicing along a specified non-spatial axis. The array attributes (.zattrs) must contain the field '_ARRAY_DIMENSIONS', which is a list of the names of each dimension (e.g., \\['time', 'y', 'x'\\]). There must be at least two dimensions, with the final two representing Y and X respectively (e.g., \\['lat', 'lon'\\]). The supported compression codecs are 'blosc', 'gzip', 'lz4', 'zlib', and 'zstd'. The supported blosc meta-compression codecs are 'lz4', lz4hc', 'zlib', and 'zstd' ('blosclz' is not supported).\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|-----------------------------------------------------------------------------------|-----------------|\n| `ee.ImageCollection.loadZarrV2Array(uri, proj, `*axis* `, `*starts* `, `*ends*`)` | ImageCollection |\n\n| Argument | Type | Details |\n|----------|------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| `uri` | String | The Cloud Storage URI of the .zarray file to load. A .zmetadata file must be present in the parent directory of the array's directory (e.g., for 'gs://b/o/.zarray', 'gs://b/.zmetadata' must be present). The bucket metadata must be accessible (requires the \\`storage.buckets.get\\` permission which is provided by the role \"Storage Legacy Bucket Reader\" among others, see https://cloud.google.com/storage/docs/access-control/iam-roles) and the bucket must be located in the US multi-region, a dual-region including US-CENTRAL1, or the US-CENTRAL1 region. |\n| `proj` | Projection | The projection of the array. |\n| `axis` | Integer, default: null | The non-spatial axis (0-indexed) along which to slice the array to create an ImageCollection. Each image in the collection represents a single slice (length 1) along this axis. If null, defaults to 0. The value must be in the range \\[0, N-1\\], where N is the number of non-spatial dimensions (i.e., total dimensions - 2). The array must have at least one non-spatial dimension (i.e., be at least 3 dimensional). |\n| `starts` | List, default: null | The indices (inclusive) at which to start taking slices along each non-spatial dimension. If null, slices will start at index 0 for all non-spatial dimensions. If specified, this list must have a length equal to the number of non-spatial dimensions (total dimensions - 2). An individual element within the list may be null, which defaults to 0 for that dimension. Negative indices are counted from the end of the dimension (e.g., -1 is the last element). |\n| `ends` | List, default: null | The indices (exclusive) at which to stop taking slices along each non-spatial dimension. If null, slices will extend to the end of each corresponding non-spatial dimension (i.e., defaults to the length of the dimension). If specified, this list must have a length equal to the number of non-spatial dimensions (total dimensions - 2). An individual element within the list may be null, which also defaults to the length of that dimension. Negative indices are counted from the end of the dimension (e.g., -1 is the last element). |"]]