Add files using upload-large-folder tool

methaneset-s2-finetune/.tacocat/COLLECTION.json

@@ -0,0 +1,665 @@
+{
+    "id": "methaneset-s2-finetune",
+    "dataset_version": "1.0.0",
+    "description": "\nLandsat 8/9 plume scenes for supervised methane detection, each with the original target scene\n(MARS-S2L) and four clean backgrounds of the same site.\n\n## Samples\n\nEvery sample is one plume id, a FOLDER with eight leaves:\n\n| leaf | what it is |\n|---|---|\n| `target` | the Landsat scene with the plume (from MARS-S2L) |\n| `bg0` | the background that MARS itself selected for that target (the original `reference`) |\n| `bg1`, `bg2`, `bg3` | three extra clean backgrounds, curated here |\n| `ch4` | the MBMP enhancement of the target (from MARS) |\n| `plume` | binary plume mask of the target |\n| `dem` | Copernicus GLO-30 elevation |\n\n## Backgrounds\n\n`bg0` is the single background that comes with the MARS-S2L pair. `bg1` to `bg3` are three extra\nbackgrounds that we curate for every target, with the same MARS method: query Landsat 8 and 9\ntogether within \u00b1120 days (before or after), filter by cloud and constellation, discard the target's\nown pass, and keep the three most similar by the MARS metric on methane-insensitive bands (B2, B3,\nB4, B6). When \u00b1120 days does not yield 40 candidates, the pool is filled with the same day-of-year\n\u00b145 days up to two years back. All four backgrounds are clean of methane.\n\n## Columns\n\nAll columns describe the target unless prefixed `bg:`, which describe the four backgrounds\n(`bg:sensor0` to `bg:sensor3`, and so on).\n\nSome columns are constant in this dataset and are kept for compatibility: `detection:offshore` is\nalways False (onshore plumes only) and `quality:observability` is `clear` for all but three samples.\n`detection:isplume` was always True and is not shipped as a column.\n",
+    "licenses": [
+        "CC-BY-4.0"
+    ],
+    "providers": [
+        {
+            "name": "Image and Signal Processing Group (ISP-UV)",
+            "roles": [
+                "producer"
+            ],
+            "url": null,
+            "links": null
+        },
+        {
+            "name": "UNEP IMEO, MARS (background pairs)",
+            "roles": [
+                "licensor"
+            ],
+            "url": null,
+            "links": null
+        }
+    ],
+    "tasks": [
+        "detection"
+    ],
+    "taco_version": "0.5.0",
+    "title": "methaneset-s2-finetune",
+    "curators": null,
+    "keywords": [
+        "methane",
+        "landsat",
+        "background",
+        "plume",
+        "taco"
+    ],
+    "extent": {
+        "spatial": [
+            -180.0,
+            -90.0,
+            180.0,
+            90.0
+        ],
+        "temporal": null
+    },
+    "taco:pit_schema": {
+        "root": {
+            "n": 3603,
+            "type": "FOLDER"
+        },
+        "shape": [
+            1066,
+            8
+        ],
+        "hierarchy": {
+            "1": [
+                {
+                    "n": 28824,
+                    "type": [
+                        "FILE",
+                        "FILE",
+                        "FILE",
+                        "FILE",
+                        "FILE",
+                        "FILE",
+                        "FILE",
+                        "FILE"
+                    ],
+                    "id": [
+                        "target",
+                        "bg0",
+                        "bg1",
+                        "bg2",
+                        "bg3",
+                        "ch4",
+                        "plume",
+                        "dem"
+                    ]
+                }
+            ]
+        }
+    },
+    "taco:field_schema": {
+        "level0": [
+            [
+                "id",
+                "string",
+                "Unique sample identifier within parent scope. Must be unique among siblings."
+            ],
+            [
+                "type",
+                "string",
+                "Sample type discriminator (FILE or FOLDER)."
+            ],
+            [
+                "detection:case_study",
+                "string",
+                "Case study region (e.g. Turkmenistan, Algeria)"
+            ],
+            [
+                "detection:ch4_fluxrate",
+                "double",
+                "Emission rate of the plume estimated by MARS [kg/h]"
+            ],
+            [
+                "detection:ch4_fluxrate_std",
+                "double",
+                "Uncertainty of detection:ch4_fluxrate [kg/h]"
+            ],
+            [
+                "detection:isplume",
+                "bool",
+                "detection:isplume"
+            ],
+            [
+                "detection:offshore",
+                "bool",
+                "Whether the source is offshore. Always False in this dataset"
+            ],
+            [
+                "detection:sector",
+                "string",
+                "Economic sector of the source (Oil and Gas, Coal)"
+            ],
+            [
+                "detection:wind_source",
+                "string",
+                "Reanalysis used for the wind: ERA5-Land onshore, GEOS-FP offshore"
+            ],
+            [
+                "geoenrich:admin_countries",
+                "string",
+                "Administrative country (may repeat site:country)"
+            ],
+            [
+                "geoenrich:admin_districts",
+                "string",
+                "Administrative district"
+            ],
+            [
+                "geoenrich:admin_states",
+                "string",
+                "Administrative state or province"
+            ],
+            [
+                "geoenrich:elevation",
+                "double",
+                "Elevation of the emission point, Copernicus GLO-30 [m]"
+            ],
+            [
+                "geoenrich:population",
+                "double",
+                "Mean population density around the emission point (HRSL)"
+            ],
+            [
+                "geoenrich:temperature",
+                "double",
+                "Mean climate temperature at the site [K]"
+            ],
+            [
+                "majortom:code",
+                "string",
+                "Internal identifier of the MARS scene"
+            ],
+            [
+                "meteo:wind_u",
+                "double",
+                "Eastward wind component at the emission point [m/s]"
+            ],
+            [
+                "meteo:wind_v",
+                "double",
+                "Northward wind component at the emission point [m/s]"
+            ],
+            [
+                "plume:geometry",
+                "string",
+                "Plume polygon of the target in WKT/WKB, EPSG:4326"
+            ],
+            [
+                "quality:last_update",
+                "string",
+                "Last update of the MARS record"
+            ],
+            [
+                "quality:notified",
+                "bool",
+                "Whether the emitter was notified upstream"
+            ],
+            [
+                "quality:observability",
+                "string",
+                "MARS observability tag: clear or bad_retrieval"
+            ],
+            [
+                "quality:percentage_clear",
+                "double",
+                "MARS cloud-clear fraction of the target scene [%]"
+            ],
+            [
+                "target:sensor",
+                "string",
+                "Satellite of the target scene: LC08 (Landsat 8) or LC09 (Landsat 9)"
+            ],
+            [
+                "target:sza",
+                "double",
+                "Solar zenith angle of the target [deg]"
+            ],
+            [
+                "target:tile",
+                "string",
+                "Landsat granule id of the target scene"
+            ],
+            [
+                "target:vza",
+                "double",
+                "Viewing zenith angle of the target [deg]"
+            ],
+            [
+                "site:country",
+                "string",
+                "Country of the emission source"
+            ],
+            [
+                "site:location_name",
+                "string",
+                "Site name of the emission source"
+            ],
+            [
+                "split",
+                "string",
+                "train / validation / test split inherited from MARS-S2L, grouped by emitter"
+            ],
+            [
+                "stac:crs",
+                "string",
+                "CRS of the chip (local UTM)"
+            ],
+            [
+                "stac:geotransform",
+                "string",
+                "GeoTransform of the chip: 10 m pixels, 200 x 200"
+            ],
+            [
+                "stac:tensor_shape",
+                "string",
+                "Shape of the chip: 11 bands, 200 rows, 200 columns"
+            ],
+            [
+                "stac:time_start",
+                "string",
+                "Acquisition time of the target scene"
+            ],
+            [
+                "bg:date0",
+                "string",
+                "Acquisition date of bg0"
+            ],
+            [
+                "bg:sensor0",
+                "string",
+                "Satellite of bg0 (the MARS reference): LC08 or LC09"
+            ],
+            [
+                "bg:tile0",
+                "string",
+                "Landsat granule id of bg0 (the MARS reference)"
+            ],
+            [
+                "bg:sensor1",
+                "string",
+                "Satellite of bg1: LC08 or LC09"
+            ],
+            [
+                "bg:date1",
+                "string",
+                "Acquisition date of bg1"
+            ],
+            [
+                "bg:cloud1",
+                "double",
+                "Cloud and shadow fraction of bg1 (OmniCloudMask)"
+            ],
+            [
+                "bg:difference1",
+                "double",
+                "MARS similarity of bg1 to the target (lower is more similar)"
+            ],
+            [
+                "bg:methane1",
+                "double",
+                "Fraction of bg1 pixels with a methane enhancement of its own"
+            ],
+            [
+                "bg:sensor2",
+                "string",
+                "Satellite of bg2: LC08 or LC09"
+            ],
+            [
+                "bg:date2",
+                "string",
+                "Acquisition date of bg2"
+            ],
+            [
+                "bg:cloud2",
+                "double",
+                "Cloud and shadow fraction of bg2 (OmniCloudMask)"
+            ],
+            [
+                "bg:difference2",
+                "double",
+                "MARS similarity of bg2 to the target (lower is more similar)"
+            ],
+            [
+                "bg:methane2",
+                "double",
+                "Fraction of bg2 pixels with a methane enhancement of its own"
+            ],
+            [
+                "bg:sensor3",
+                "string",
+                "Satellite of bg3: LC08 or LC09"
+            ],
+            [
+                "bg:date3",
+                "string",
+                "Acquisition date of bg3"
+            ],
+            [
+                "bg:cloud3",
+                "double",
+                "Cloud and shadow fraction of bg3 (OmniCloudMask)"
+            ],
+            [
+                "bg:difference3",
+                "double",
+                "MARS similarity of bg3 to the target (lower is more similar)"
+            ],
+            [
+                "bg:methane3",
+                "double",
+                "Fraction of bg3 pixels with a methane enhancement of its own"
+            ],
+            [
+                "emission:lat",
+                "double",
+                "Latitude of the emission point [deg]"
+            ],
+            [
+                "emission:lon",
+                "double",
+                "Longitude of the emission point [deg]"
+            ],
+            [
+                "target:cloud",
+                "double",
+                "Cloud and shadow fraction of the target chip (OmniCloudMask)"
+            ],
+            [
+                "bg:cloud0",
+                "double",
+                "Cloud and shadow fraction of bg0 (OmniCloudMask)"
+            ],
+            [
+                "internal:current_id",
+                "int64",
+                "Current sample position at this level (0-indexed). Enables O(1) random access and relational JOINs (ZIP, FOLDER, TACOCAT)."
+            ],
+            [
+                "internal:parent_id",
+                "int64",
+                "Foreign key referencing parent sample position in previous level (ZIP, FOLDER, TACOCAT)."
+            ]
+        ],
+        "level1": [
+            [
+                "id",
+                "string",
+                "Unique sample identifier within parent scope. Must be unique among siblings."
+            ],
+            [
+                "type",
+                "string",
+                "Sample type discriminator (FILE or FOLDER)."
+            ],
+            [
+                "geotiff:stats",
+                "list<item: list<item: float>>",
+                "Per-band statistics (List[List[Float32]]): categorical mode returns class probabilities, continuous mode returns [min, max, mean, std, valid%, p25, p50, p75, p95]"
+            ],
+            [
+                "taco:header",
+                "binary",
+                "Binary TACOTIFF header (35 bytes + tile counts) for fast reading without IFD parsing"
+            ],
+            [
+                "internal:current_id",
+                "int64",
+                "Current sample position at this level (0-indexed). Enables O(1) random access and relational JOINs (ZIP, FOLDER, TACOCAT)."
+            ],
+            [
+                "internal:parent_id",
+                "int64",
+                "Foreign key referencing parent sample position in previous level (ZIP, FOLDER, TACOCAT)."
+            ],
+            [
+                "internal:relative_path",
+                "string",
+                "Relative path from DATA/ directory. Format: {parent_path}/{id} or {id} for level0 (ZIP, FOLDER, TACOCAT)."
+            ]
+        ]
+    },
+    "taco:sources": {
+        "count": 20,
+        "ids": [
+            "methaneset-s2-finetune",
+            "methaneset-s2-finetune",
+            "methaneset-s2-finetune",
+            "methaneset-s2-finetune",
+            "methaneset-s2-finetune",
+            "methaneset-s2-finetune",
+            "methaneset-s2-finetune",
+            "methaneset-s2-finetune",
+            "methaneset-s2-finetune",
+            "methaneset-s2-finetune",
+            "methaneset-s2-finetune",
+            "methaneset-s2-finetune",
+            "methaneset-s2-finetune",
+            "methaneset-s2-finetune",
+            "methaneset-s2-finetune",
+            "methaneset-s2-finetune",
+            "methaneset-s2-finetune",
+            "methaneset-s2-finetune",
+            "methaneset-s2-finetune",
+            "methaneset-s2-finetune"
+        ],
+        "files": [
+            "methaneset-s2-finetune_Algeria.tacozip",
+            "methaneset-s2-finetune_Argentina.tacozip",
+            "methaneset-s2-finetune_Bahrain.tacozip",
+            "methaneset-s2-finetune_China.tacozip",
+            "methaneset-s2-finetune_Turkmenistan.tacozip",
+            "methaneset-s2-finetune_Egypt.tacozip",
+            "methaneset-s2-finetune_Syrian_Arab_Republic.tacozip",
+            "methaneset-s2-finetune_Iran_(Islamic_Republic_of).tacozip",
+            "methaneset-s2-finetune_Iraq.tacozip",
+            "methaneset-s2-finetune_United_States_of_America.tacozip",
+            "methaneset-s2-finetune_Yemen.tacozip",
+            "methaneset-s2-finetune_Kazakhstan.tacozip",
+            "methaneset-s2-finetune_Libya.tacozip",
+            "methaneset-s2-finetune_Jordan.tacozip",
+            "methaneset-s2-finetune_Kuwait.tacozip",
+            "methaneset-s2-finetune_Oman.tacozip",
+            "methaneset-s2-finetune_Russian_Federation.tacozip",
+            "methaneset-s2-finetune_Saudi_Arabia.tacozip",
+            "methaneset-s2-finetune_Uzbekistan.tacozip",
+            "methaneset-s2-finetune_Venezuela.tacozip"
+        ],
+        "extents": [
+            {
+                "file": "methaneset-s2-finetune_Algeria.tacozip",
+                "id": "methaneset-s2-finetune",
+                "spatial": [
+                    -180.0,
+                    -90.0,
+                    180.0,
+                    90.0
+                ]
+            },
+            {
+                "file": "methaneset-s2-finetune_Argentina.tacozip",
+                "id": "methaneset-s2-finetune",
+                "spatial": [
+                    -180.0,
+                    -90.0,
+                    180.0,
+                    90.0
+                ]
+            },
+            {
+                "file": "methaneset-s2-finetune_Bahrain.tacozip",
+                "id": "methaneset-s2-finetune",
+                "spatial": [
+                    -180.0,
+                    -90.0,
+                    180.0,
+                    90.0
+                ]
+            },
+            {
+                "file": "methaneset-s2-finetune_China.tacozip",
+                "id": "methaneset-s2-finetune",
+                "spatial": [
+                    -180.0,
+                    -90.0,
+                    180.0,
+                    90.0
+                ]
+            },
+            {
+                "file": "methaneset-s2-finetune_Turkmenistan.tacozip",
+                "id": "methaneset-s2-finetune",
+                "spatial": [
+                    -180.0,
+                    -90.0,
+                    180.0,
+                    90.0
+                ]
+            },
+            {
+                "file": "methaneset-s2-finetune_Egypt.tacozip",
+                "id": "methaneset-s2-finetune",
+                "spatial": [
+                    -180.0,
+                    -90.0,
+                    180.0,
+                    90.0
+                ]
+            },
+            {
+                "file": "methaneset-s2-finetune_Syrian_Arab_Republic.tacozip",
+                "id": "methaneset-s2-finetune",
+                "spatial": [
+                    -180.0,
+                    -90.0,
+                    180.0,
+                    90.0
+                ]
+            },
+            {
+                "file": "methaneset-s2-finetune_Iran_(Islamic_Republic_of).tacozip",
+                "id": "methaneset-s2-finetune",
+                "spatial": [
+                    -180.0,
+                    -90.0,
+                    180.0,
+                    90.0
+                ]
+            },
+            {
+                "file": "methaneset-s2-finetune_Iraq.tacozip",
+                "id": "methaneset-s2-finetune",
+                "spatial": [
+                    -180.0,
+                    -90.0,
+                    180.0,
+                    90.0
+                ]
+            },
+            {
+                "file": "methaneset-s2-finetune_United_States_of_America.tacozip",
+                "id": "methaneset-s2-finetune",
+                "spatial": [
+                    -180.0,
+                    -90.0,
+                    180.0,
+                    90.0
+                ]
+            },
+            {
+                "file": "methaneset-s2-finetune_Yemen.tacozip",
+                "id": "methaneset-s2-finetune",
+                "spatial": [
+                    -180.0,
+                    -90.0,
+                    180.0,
+                    90.0
+                ]
+            },
+            {
+                "file": "methaneset-s2-finetune_Kazakhstan.tacozip",
+                "id": "methaneset-s2-finetune",
+                "spatial": [
+                    -180.0,
+                    -90.0,
+                    180.0,
+                    90.0
+                ]
+            },
+            {
+                "file": "methaneset-s2-finetune_Libya.tacozip",
+                "id": "methaneset-s2-finetune",
+                "spatial": [
+                    -180.0,
+                    -90.0,
+                    180.0,
+                    90.0
+                ]
+            },
+            {
+                "file": "methaneset-s2-finetune_Jordan.tacozip",
+                "id": "methaneset-s2-finetune",
+                "spatial": [
+                    -180.0,
+                    -90.0,
+                    180.0,
+                    90.0
+                ]
+            },
+            {
+                "file": "methaneset-s2-finetune_Kuwait.tacozip",
+                "id": "methaneset-s2-finetune",
+                "spatial": [
+                    -180.0,
+                    -90.0,
+                    180.0,
+                    90.0
+                ]
+            },
+            {
+                "file": "methaneset-s2-finetune_Oman.tacozip",
+                "id": "methaneset-s2-finetune",
+                "spatial": [
+                    -180.0,
+                    -90.0,
+                    180.0,
+                    90.0
+                ]
+            },
+            {
+                "file": "methaneset-s2-finetune_Russian_Federation.tacozip",
+                "id": "methaneset-s2-finetune",
+                "spatial": [
+                    -180.0,
+                    -90.0,
+                    180.0,
+                    90.0
+                ]
+            },
+            {
+                "file": "methaneset-s2-finetune_Saudi_Arabia.tacozip",
+                "id": "methaneset-s2-finetune",
+                "spatial": [
+                    -180.0,
+                    -90.0,
+                    180.0,
+                    90.0
+                ]
+            },
+            {
+                "file": "methaneset-s2-finetune_Uzbekistan.tacozip",
+                "id": "methaneset-s2-finetune",
+                "spatial": [
+                    -180.0,
+                    -90.0,
+                    180.0,
+                    90.0
+                ]
+            },
+            {
+                "file": "methaneset-s2-finetune_Venezuela.tacozip",
+                "id": "methaneset-s2-finetune",
+                "spatial": [
+                    -180.0,
+                    -90.0,
+                    180.0,
+                    90.0
+                ]
+            }
+        ]
+    }
+}

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methaneset-s2-finetune/.tacocat/level1.parquet

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methaneset-s2-finetune/README.md

@@ -0,0 +1,191 @@
+
+# methaneset-s2-finetune
+
+
+Landsat 8/9 plume scenes for supervised methane detection, each with the original target scene
+(MARS-S2L) and four clean backgrounds of the same site.
+
+## Samples
+
+Every sample is one plume id, a FOLDER with eight leaves:
+
+| leaf | what it is |
+|---|---|
+| `target` | the Landsat scene with the plume (from MARS-S2L) |
+| `bg0` | the background that MARS itself selected for that target (the original `reference`) |
+| `bg1`, `bg2`, `bg3` | three extra clean backgrounds, curated here |
+| `ch4` | the MBMP enhancement of the target (from MARS) |
+| `plume` | binary plume mask of the target |
+| `dem` | Copernicus GLO-30 elevation |
+
+## Backgrounds
+
+`bg0` is the single background that comes with the MARS-S2L pair. `bg1` to `bg3` are three extra
+backgrounds that we curate for every target, with the same MARS method: query Landsat 8 and 9
+together within ±120 days (before or after), filter by cloud and constellation, discard the target's
+own pass, and keep the three most similar by the MARS metric on methane-insensitive bands (B2, B3,
+B4, B6). When ±120 days does not yield 40 candidates, the pool is filled with the same day-of-year
+±45 days up to two years back. All four backgrounds are clean of methane.
+
+## Columns
+
+All columns describe the target unless prefixed `bg:`, which describe the four backgrounds
+(`bg:sensor0` to `bg:sensor3`, and so on).
+
+Some columns are constant in this dataset and are kept for compatibility: `detection:offshore` is
+always False (onshore plumes only) and `quality:observability` is `clear` for all but three samples.
+`detection:isplume` was always True and is not shipped as a column.
+
+## Dataset Information
+
+**Version**: 1.0.0
+
+**License**: CC-BY-4.0
+
+**Keywords**: methane, landsat, background, plume, taco
+
+**Tasks**: detection
+
+## Dataset Overview
+
+**Partitions**: 20 files
+**Spatial coverage**: [-180.00, -90.00, 180.00, 90.00] (WGS84)
+
+## Dataset Structure (Root-Sibling Uniform Tree)
+
+**Root**: FOLDER (3,603 samples)
+
+**Hierarchy**:
+
+- Level 1: FILE → FILE → FILE → FILE → FILE → FILE → FILE → FILE (28,824 samples)
+
+## Metadata Fields
+
+### LEVEL0
+
+| Field | Type | Description |
+|-------|------|-------------|
+| `id` | `string` | Unique sample identifier within parent scope. Must be unique among siblings. |
+| `type` | `string` | Sample type discriminator (FILE or FOLDER). |
+| `detection:case_study` | `string` | Case study region (e.g. Turkmenistan, Algeria) |
+| `detection:ch4_fluxrate` | `double` | Emission rate of the plume estimated by MARS [kg/h] |
+| `detection:ch4_fluxrate_std` | `double` | Uncertainty of detection:ch4_fluxrate [kg/h] |
+| `detection:isplume` | `bool` | detection:isplume |
+| `detection:offshore` | `bool` | Whether the source is offshore. Always False in this dataset |
+| `detection:sector` | `string` | Economic sector of the source (Oil and Gas, Coal) |
+| `detection:wind_source` | `string` | Reanalysis used for the wind: ERA5-Land onshore, GEOS-FP offshore |
+| `geoenrich:admin_countries` | `string` | Administrative country (may repeat site:country) |
+| `geoenrich:admin_districts` | `string` | Administrative district |
+| `geoenrich:admin_states` | `string` | Administrative state or province |
+| `geoenrich:elevation` | `double` | Elevation of the emission point, Copernicus GLO-30 [m] |
+| `geoenrich:population` | `double` | Mean population density around the emission point (HRSL) |
+| `geoenrich:temperature` | `double` | Mean climate temperature at the site [K] |
+| `majortom:code` | `string` | Internal identifier of the MARS scene |
+| `meteo:wind_u` | `double` | Eastward wind component at the emission point [m/s] |
+| `meteo:wind_v` | `double` | Northward wind component at the emission point [m/s] |
+| `plume:geometry` | `string` | Plume polygon of the target in WKT/WKB, EPSG:4326 |
+| `quality:last_update` | `string` | Last update of the MARS record |
+| `quality:notified` | `bool` | Whether the emitter was notified upstream |
+| `quality:observability` | `string` | MARS observability tag: clear or bad_retrieval |
+| `quality:percentage_clear` | `double` | MARS cloud-clear fraction of the target scene [%] |
+| `target:sensor` | `string` | Satellite of the target scene: LC08 (Landsat 8) or LC09 (Landsat 9) |
+| `target:sza` | `double` | Solar zenith angle of the target [deg] |
+| `target:tile` | `string` | Landsat granule id of the target scene |
+| `target:vza` | `double` | Viewing zenith angle of the target [deg] |
+| `site:country` | `string` | Country of the emission source |
+| `site:location_name` | `string` | Site name of the emission source |
+| `split` | `string` | train / validation / test split inherited from MARS-S2L, grouped by emitter |
+| `stac:crs` | `string` | CRS of the chip (local UTM) |
+| `stac:geotransform` | `string` | GeoTransform of the chip: 10 m pixels, 200 x 200 |
+| `stac:tensor_shape` | `string` | Shape of the chip: 11 bands, 200 rows, 200 columns |
+| `stac:time_start` | `string` | Acquisition time of the target scene |
+| `bg:date0` | `string` | Acquisition date of bg0 |
+| `bg:sensor0` | `string` | Satellite of bg0 (the MARS reference): LC08 or LC09 |
+| `bg:tile0` | `string` | Landsat granule id of bg0 (the MARS reference) |
+| `bg:sensor1` | `string` | Satellite of bg1: LC08 or LC09 |
+| `bg:date1` | `string` | Acquisition date of bg1 |
+| `bg:cloud1` | `double` | Cloud and shadow fraction of bg1 (OmniCloudMask) |
+| `bg:difference1` | `double` | MARS similarity of bg1 to the target (lower is more similar) |
+| `bg:methane1` | `double` | Fraction of bg1 pixels with a methane enhancement of its own |
+| `bg:sensor2` | `string` | Satellite of bg2: LC08 or LC09 |
+| `bg:date2` | `string` | Acquisition date of bg2 |
+| `bg:cloud2` | `double` | Cloud and shadow fraction of bg2 (OmniCloudMask) |
+| `bg:difference2` | `double` | MARS similarity of bg2 to the target (lower is more similar) |
+| `bg:methane2` | `double` | Fraction of bg2 pixels with a methane enhancement of its own |
+| `bg:sensor3` | `string` | Satellite of bg3: LC08 or LC09 |
+| `bg:date3` | `string` | Acquisition date of bg3 |
+| `bg:cloud3` | `double` | Cloud and shadow fraction of bg3 (OmniCloudMask) |
+| `bg:difference3` | `double` | MARS similarity of bg3 to the target (lower is more similar) |
+| `bg:methane3` | `double` | Fraction of bg3 pixels with a methane enhancement of its own |
+| `emission:lat` | `double` | Latitude of the emission point [deg] |
+| `emission:lon` | `double` | Longitude of the emission point [deg] |
+| `target:cloud` | `double` | Cloud and shadow fraction of the target chip (OmniCloudMask) |
+| `bg:cloud0` | `double` | Cloud and shadow fraction of bg0 (OmniCloudMask) |
+| `internal:current_id` | `int64` | Current sample position at this level (0-indexed). Enables O(1) random access and relational JOINs (ZIP, FOLDER, TACOCAT). |
+| `internal:parent_id` | `int64` | Foreign key referencing parent sample position in previous level (ZIP, FOLDER, TACOCAT). |
+
+### LEVEL1
+
+| Field | Type | Description |
+|-------|------|-------------|
+| `id` | `string` | Unique sample identifier within parent scope. Must be unique among siblings. |
+| `type` | `string` | Sample type discriminator (FILE or FOLDER). |
+| `geotiff:stats` | `list<item: list<item: float>>` | Per-band statistics (List[List[Float32]]): categorical mode returns class probabilities, continuous mode returns [min, max, mean, std, valid%, p25, p50, p75, p95] |
+| `taco:header` | `binary` | Binary TACOTIFF header (35 bytes + tile counts) for fast reading without IFD parsing |
+| `internal:current_id` | `int64` | Current sample position at this level (0-indexed). Enables O(1) random access and relational JOINs (ZIP, FOLDER, TACOCAT). |
+| `internal:parent_id` | `int64` | Foreign key referencing parent sample position in previous level (ZIP, FOLDER, TACOCAT). |
+| `internal:relative_path` | `string` | Relative path from DATA/ directory. Format: {parent_path}/{id} or {id} for level0 (ZIP, FOLDER, TACOCAT). |
+
+
+## Usage
+
+### Python
+
+```python
+# pip install tacoreader
+import tacoreader
+
+ds = tacoreader.load("/data/databases/METHANESET_TACOS/methaneset-s2-finetune/.tacocat")
+print(f"ID: {ds.id}")
+print(f"Version: {ds.version}")
+print(f"Samples: {len(ds.data)}")
+```
+
+### R
+
+```r
+# Coming soon: R support is planned but not yet available
+# install.packages("tacoreader")
+library(tacoreader)
+
+ds <- load_taco("/data/databases/METHANESET_TACOS/methaneset-s2-finetune/.tacocat")
+cat(sprintf("ID: %s\n", ds$id))
+cat(sprintf("Version: %s\n", ds$version))
+cat(sprintf("Samples: %d\n", nrow(ds$data)))
+```
+
+### Julia
+
+```julia
+# Coming soon: Julia support is planned but not yet available
+# using Pkg; Pkg.add("TacoReader")
+using TacoReader
+
+ds = load_taco("/data/databases/METHANESET_TACOS/methaneset-s2-finetune/.tacocat")
+println("ID: ", ds.id)
+println("Version: ", ds.version)
+println("Samples: ", size(ds.data, 1))
+```
+
+## Data Providers
+
+**Image and Signal Processing Group (ISP-UV)** — *producer*
+
+**UNEP IMEO, MARS (background pairs)** — *licensor*
+
+
+
+
+---
+
+Generated with ❤️ using [TacoToolbox](https://github.com/tacotoolbox/tacotoolbox) v0.26.9

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