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Add EEA Reference Grid #14

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7 changes: 7 additions & 0 deletions CHANGELOG.md
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Expand Up @@ -4,6 +4,12 @@ All notable changes to this project will be documented in this file.
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

## [1.2.0]

### Added

- EEA Reference Grid

## [1.1.0]

### Fixed
Expand All @@ -17,4 +23,5 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0

- Initial release

[1.2.0]: <https://github.com/stac-extensions/grid/compare/v1.1.0...v1.2.0>
[1.1.0]: <https://github.com/stac-extensions/grid/compare/v1.0.0...v1.1.0>
19 changes: 19 additions & 0 deletions README.md
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Expand Up @@ -21,6 +21,7 @@
- [Maxar ARD Tile Grid](#maxar-ard-tile-grid)
- [EASE-DGGS](#ease-dggs)
- [Copernicus Digital Elevation Model Grid](#copernicus-digital-elevation-model-grid)
- [EEA Reference Grid](#eea-reference-grid)
- [Contributing](#contributing)
- [Running tests](#running-tests)
- [Grid Maps](#grid-maps)
Expand Down Expand Up @@ -177,6 +178,24 @@ that of the 7.5-minute quad, followed by NE, NW, SW, or SE for the DOQQ.
- *Products*: Copernicus DEM GLO-30, GLO-90, and EEA-10 products in DGED format
- *Reference*: [Copernicus DEM Product Handbook](https://dataspace.copernicus.eu/sites/default/files/media/files/2024-06/geo1988-copernicusdem-spe-002_producthandbook_i5.0.pdf)

##### EEA Reference Grid

- *Format String*: `EEA-{resolution}{easting}{northing}`
- *Example*: EEA-100kmE31N36
- *Components*:
- `resolution`: Recommended grid resolutions are `100m`, `1km`, `10km` and `100km`.
Alternatively, `25m` or `250m` resolution can be used for analysis purposes,
where the standard `100m` or `1km` grid cell size is not appropriate.
The resolution is denoted in meter (`m`) for cell sizes below 1000 meters and
kilometre (`km`) for cell sizes from 1000 meters and above.
- `northing` and `easting`: Reflects the distance of the lower left grid cell corner
from the false origin of the CRS. In order to reduce the length of the string,
Easting (`E`) and Northing (`N`) values are divided by $10^n$
(where $n$ is the number of zeros in the cell size value).
- *Products*: CLMS datasets, e.g. CLMS High Resolution Layer Tree Cover and Forests
- *Reference*: [About the EEA reference grid, Hermann Peifer, EEA, September 2011](https://www.eea.europa.eu/data-and-maps/data/eea-reference-grids-1/about-the-eea-reference-grid/eea_reference_grid_v1.pdf/at_download/file)
- *Related Extensions*: none

## Contributing

All contributions are subject to the
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