From ce669766706a3b506ae724fc6e59bfb9ec452b26 Mon Sep 17 00:00:00 2001 From: Emmanuel Mathot Date: Mon, 6 Feb 2023 16:14:59 +0100 Subject: [PATCH] more details --- README.md | 45 +++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 43 insertions(+), 2 deletions(-) diff --git a/README.md b/README.md index 9af62a3..f591dfd 100644 --- a/README.md +++ b/README.md @@ -52,7 +52,7 @@ All related [Acquisitions](#acquisition) shall be associated to the **Call**, no ### Area -Regions that are affected by the disaster and identified by the parties involded in the CHarter process. +Regions that are affected by the disaster and identified by the parties involved in the Charter process. ### Acquisition @@ -75,7 +75,7 @@ The fields in the table below can be used in these parts of STAC documents: - [x] Collections - [x] Item Properties (incl. Summaries in Collections) - [ ] Assets (for both Collections and Items, incl. Item Asset Definitions in Collections) -- [ ] Links +- [x] Links | Field Name | Type | Description | | -------------------------- | --------- | ---------------------------------------------------------------------------------------------------------------- | @@ -122,6 +122,47 @@ Here is the list of suggested types: - `acquisition` : [Acquisition](#acquisition) - `vap` : [Value Added Product](#value-added-product) +#### disaster:resolution_class + +The `disaster:resolution_class` is category code to classify the resolution of the `acquisition` item. + +- `VLR` : Very Low Resolution +- `LR` : Low Resolution +- `MR` : Medium Resolution +- `HR` : High Resolution +- `VHR` : Very High Resolution + +This nomenclature is proper to the [Disasters Charter](https://disasterscharter.org) +and is used to classify the resolution of the satellite. + +### Other Extensions and Specifications + +This extension uses and requires additional fields from other specifications or extensions. + +The following specifications are relevant here: + +- [STAC Common Metadata](https://github.com/radiantearth/stac-spec/blob/master/item-spec/common-metadata.md) +- [STAC SAT Extension](https://github.com/stac-extensions/sat) + +| Field Name | Type | Description | +| -------------- | ---------- | -------------------------------------------------------------------------------------- | +| platform | string | Globally unique satellite identifier as defined in common metadata. | +| instruments | \[string\] | The instrument identifier as defined in common metadata. | +| datetime | string | **REQUIRED**. The disaster or acquisition time As defined in common metadata and STAC. | +| gsd | number | Ground sample distance as defined in common metadata. | +| sensor_type | string | The sensor type. One of `optical` or `radar` | +| eo:cloud_cover | number | Cloud cover as defined in the EO extension. | + +**Additional REQUIRED fields per `disaster:class`:** + +| Field Name | activation | area | acquisition | vap | +| -------------- | ---------- | ---- | ------------------- | ------------------- | +| platform | | | X | X (when applicable) | +| instruments | | | X | X (when applicable) | +| gsd | | | X | X (when applicable) | +| sensor_type | | | X | X (when applicable) | +| eo:cloud_cover | | | X (when applicable) | X (when applicable) | + ## Relation types The following types should be used as applicable `rel` types in the