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.nojekyll

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examples/00_download_data.html

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examples/01_CRS_in_auxiliary_variable.html

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examples/02_CRS_and_geotransform_in_auxiliary_variable.html

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examples/03_multiscales_as_WebMercatorQuad_ZarrV2.html

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examples/04_multiscales_as_WebMercatorQuad_ZarrV3.html

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index.html

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<h3 class="anchored" data-anchor-id="what-is-the-relationship-between-geozarr-and-web-optimized-zarr">What is the relationship between GeoZarr and Web-Optimized-Zarr?</h3>
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<p>Web-Optimized Zarr (WOZ) right now is just an idea. I hope that the term WOZ will promote the use of overviews in GeoZarr (which are optional in the core spec) and familiarize practitioners with the concept of storing full-resolution “archival” versions in other file formats and reduced resolution versions in “native” zarr. GeoZarr would allow a single “web-optimized” entrypoint to both via virtualization. A prototype will part of this repository.</p>
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<p>Depending on initial experimentation, WOZ may involve additional restrictions on top of the GeoZarr spec such as a minimum and maximum chunk size, sharding requirements for V3 data, compression requirements, encoding requirements around, for example, fill values, and rendering metadata (e.g., min and max values).</p>
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<p>Please see the <a href="./web-optimized-zarr.html">web-optimized Zarr overview page</a>.</p>
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search.json

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"text": "Web-optimized Zarr\nWeb-optimized zarr provides a set of additional recommendations on top of the GeoZarr specification for optimal browser-based analysis and visualization. The specific recommendations are still under development. We anticipate the following to be included as web-optimized Zarr recommendations:\n\nThe WOZ MUST be chunked in either the spatial or temporal dimensions. The WOZ guide will include a reference to a separate document for recommended chunking schemes and compression algorithms for different use-cases, which will be updated as browsers and infrastructures change.\nThe dimension order for 2-dimensional data MUST be (y, x) (or the equivalent spatial dimension names) for maximum interoperability.\nThe dimension order for 3-dimensional data MUST be (time, y, x) (or the equivalent spatial dimension names) for maximum interoperability.\nThe WOZ MUST include multi-scales.\nThe WOZ may contain full-resolution “archival” versions in other file formats and reduced resolution versions in “native” zarr.\n\nThe following criteria may be included after further evaluation:\n\nThe multi-scales must align with a well-known TMS.\nThe WOZ should include sharding to allow clients to request smaller individual chunks or larger shards.\nThe multi-scales should contain rendering metadata (e.g., min and max values and preferred color mapping representations).\n\nThese recommendations will be expanded or updated after additional experimentation.\nFor a graphical depiction of how WOZ compares to GeoZarr, please see the excalidraw diagram.",
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"text": "FAQ\n\nWhat’s the status of GeoZarr?\nGeoZarr is currently being developed as a Open Geospatial Consortium Standard. There is a GeoZarr Standards Working Group that meets once a month. We now have experimental prototypes of all of the pieces to move GeoZarr out of a discussion phase and into a demonstration phase. This repository stems from the hope that building demonstrations will lead to adoption, iteration, and formalization of a stable GeoZarr specification.\n\n\nHow does Zarr Specification V3 spec influence GeoZarr?\nThe GeoZarr spec is designed for Zarr specification version 2. This repository will demonstrate how the differences between Zarr format 2 and Zarr format 3 would influence GeoZarr. My expectation is that there is not much difference in the metadata requirements between the two formats. However, best practices will likely be impacted by new features available in Zarr specification version 3 (e.g., sharding).\n\n\nHow does the release of Zarr-Python 3 influence GeoZarr?\nThe Zarr-Python 3 release will help GeoZarr users through its increased performance, modernized codebase, and support for extensions. But, it only really interacts with the GeoZarr spec in-so-far as Zarr-Python 3 supports Zarr specification V3 (see prior question on “How does Zarr Specification V3 spec influence GeoZarr”).\n\n\nWhat is the relationship between GeoZarr and Web-Optimized-Zarr?\nWeb-Optimized Zarr (WOZ) right now is just an idea. I hope that the term WOZ will promote the use of overviews in GeoZarr (which are optional in the core spec) and familiarize practitioners with the concept of storing full-resolution “archival” versions in other file formats and reduced resolution versions in “native” zarr. GeoZarr would allow a single “web-optimized” entrypoint to both via virtualization. A prototype will part of this repository.\nDepending on initial experimentation, WOZ may involve additional restrictions on top of the GeoZarr spec such as a minimum and maximum chunk size, sharding requirements for V3 data, compression requirements, encoding requirements around, for example, fill values, and rendering metadata (e.g., min and max values).",
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"text": "FAQ\n\nWhat’s the status of GeoZarr?\nGeoZarr is currently being developed as a Open Geospatial Consortium Standard. There is a GeoZarr Standards Working Group that meets once a month. We now have experimental prototypes of all of the pieces to move GeoZarr out of a discussion phase and into a demonstration phase. This repository stems from the hope that building demonstrations will lead to adoption, iteration, and formalization of a stable GeoZarr specification.\n\n\nHow does Zarr Specification V3 spec influence GeoZarr?\nThe GeoZarr spec is designed for Zarr specification version 2. This repository will demonstrate how the differences between Zarr format 2 and Zarr format 3 would influence GeoZarr. My expectation is that there is not much difference in the metadata requirements between the two formats. However, best practices will likely be impacted by new features available in Zarr specification version 3 (e.g., sharding).\n\n\nHow does the release of Zarr-Python 3 influence GeoZarr?\nThe Zarr-Python 3 release will help GeoZarr users through its increased performance, modernized codebase, and support for extensions. But, it only really interacts with the GeoZarr spec in-so-far as Zarr-Python 3 supports Zarr specification V3 (see prior question on “How does Zarr Specification V3 spec influence GeoZarr”).\n\n\nWhat is the relationship between GeoZarr and Web-Optimized-Zarr?\nPlease see the web-optimized Zarr overview page.",
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