L'ensemble de données MYD14A2 V6.1 fournit des composites de masques d'incendie de huit jours à une résolution de 1 km. Il contient la valeur maximale des classes de pixels individuelles au cours de la période de composition. En plus du masque d'incendie, une couche d'informations sur la qualité associée est également fournie.
Bits 0 à 3 : classes de pixels du masque d'incendie
1 : Non traité (obsolète, non utilisé depuis la collection 1)
2 : Non traité (autre raison)
3 : Pixel d'eau non incendiaire
4 : Nuages (terre ou eau)
5 : Pixel terrestre non incendié
6 : Inconnu (terre ou eau)
7 : Incendie (fiabilité faible, sur terre ou dans l'eau)
8 : Incendie (confiance nominale, terre ou eau)
9 : Incendie (fiabilité élevée, terre ou eau)
QA
mètres
Indicateurs de qualité des pixels
Masque de bits pour le contrôle qualité
Bits 0-1 : état terre/eau
0 : Eau
1 : Côte
2 : Terre
3 : Données manquantes
Bit 2 : Nuit/Jour
0 : Nuit
1 : Jour
Conditions d'utilisation
Conditions d'utilisation
Les données et produits MODIS acquis via le LP DAAC ne sont soumis à aucune restriction concernant leur utilisation, leur vente ou leur redistribution ultérieures.
Citations
Citations :
Pour savoir comment citer les ensembles de données LP DAAC, consultez la page Citing Our Data (Citer nos données).
L'ensemble de données MYD14A2 V6.1 fournit des composites de masques d'incendie de huit jours à une résolution de 1 km. Elle contient la valeur maximale des classes de pixels individuelles au cours de la période de composition. En plus du masque d'incendie, une couche d'informations sur la qualité associée est également fournie. Documentation : Guide de l'utilisateur, document de base théorique de l'algorithme (ATBD), documentation générale
[null,null,[],[[["\u003cp\u003eMYD14A2 V6.1 provides 8-day fire mask composites at 1km resolution, including fire mask and quality information layers.\u003c/p\u003e\n"],["\u003cp\u003eThe dataset covers the globe and is derived from the MODIS sensor on the Aqua satellite.\u003c/p\u003e\n"],["\u003cp\u003eData is available from July 4, 2002, to November 24, 2024, and has no restrictions on use, sale, or redistribution.\u003c/p\u003e\n"],["\u003cp\u003eUsers can explore and analyze this dataset within Google Earth Engine.\u003c/p\u003e\n"],["\u003cp\u003eFire mask pixel values represent confidence levels (low, nominal, high) or other classifications such as cloud, water, and land.\u003c/p\u003e\n"]]],["The MYD14A2 V6.1 dataset, provided by NASA LP DAAC, offers 8-day fire mask composites at 1km resolution, available from 2002-07-04 to 2025-02-10. Data users can access it via Google Earth Engine, utilizing the `ee.ImageCollection(\"MODIS/061/MYD14A2\")` snippet. The dataset includes the maximum pixel class values over each 8-day period, along with a fire mask and a quality information layer. Access to the data provided is free of charge.\n"],null,["# MYD14A2.061: Aqua Thermal Anomalies & Fire 8-Day Global 1km\n\nDataset Availability\n: 2002-07-04T00:00:00Z--2025-08-13T00:00:00Z\n\nDataset Provider\n:\n\n\n [NASA LP DAAC at the USGS EROS Center](https://doi.org/10.5067/MODIS/MYD14A2.061)\n\nCadence\n: 8 Days\n\nTags\n:\n [8-day](/earth-engine/datasets/tags/8-day) [aqua](/earth-engine/datasets/tags/aqua) [fire](/earth-engine/datasets/tags/fire) [global](/earth-engine/datasets/tags/global) [modis](/earth-engine/datasets/tags/modis) [nasa](/earth-engine/datasets/tags/nasa) [usgs](/earth-engine/datasets/tags/usgs) \nmyd14a2 \n\n#### Description\n\nThe MYD14A2 V6.1 dataset provides 8-day fire mask composites\nat 1km resolution. It contains the maximum value of the individual\npixel classes over the compositing period. Along with the fire\nmask, an associated quality information layer is also provided.\n\nDocumentation:\n\n- [User's Guide](https://lpdaac.usgs.gov/documents/88/MOD14_User_Guide_v6.pdf)\n\n- [Algorithm Theoretical Basis Document (ATBD)](https://lpdaac.usgs.gov/documents/87/MOD14_ATBD.pdf)\n\n- [General Documentation](https://ladsweb.modaps.eosdis.nasa.gov/filespec/MODIS/61/MYD14A2)\n\n### Bands\n\n\n**Pixel Size**\n\n1000 meters\n\n**Bands**\n\n| Name | Pixel Size | Description |\n|------------|------------|--------------------------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| `FireMask` | meters | Confidence of fire |\n| Bitmask for FireMask - Bits 0-3: Fire mask pixel classes - 1: Not processed (obsolete; not used since Collection 1) - 2: Not processed (other reason) - 3: Non-fire water pixel - 4: Cloud (land or water) - 5: Non-fire land pixel - 6: Unknown (land or water) - 7: Fire (low confidence, land or water) - 8: Fire (nominal confidence, land or water) - 9: Fire (high confidence, land or water) ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||\n| `QA` | meters | Pixel quality indicators |\n| Bitmask for QA - Bits 0-1: Land/water state - 0: Water - 1: Coast - 2: Land - 3: Missing data - Bit 2: Night/day - 0: Night - 1: Day ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||\n\n### Terms of Use\n\n**Terms of Use**\n\nMODIS data and products acquired through the LP DAAC\nhave no restrictions on subsequent use, sale, or redistribution.\n\n### Citations\n\nCitations:\n\n- Please visit [LP DAAC 'Citing Our Data' page](https://lpdaac.usgs.gov/citing_our_data)\n for information on citing LP DAAC datasets.\n\n### DOIs\n\n- \u003chttps://doi.org/10.5067/MODIS/MYD14A2.061\u003e\n\n### Explore with Earth Engine\n\n| **Important:** Earth Engine is a platform for petabyte-scale scientific analysis and visualization of geospatial datasets, both for public benefit and for business and government users. Earth Engine is free to use for research, education, and nonprofit use. To get started, please [register for Earth Engine access.](https://console.cloud.google.com/earth-engine)\n\n### Code Editor (JavaScript)\n\n```javascript\nvar dataset = ee.ImageCollection('MODIS/061/MYD14A2')\n .filter(ee.Filter.date('2018-01-01', '2018-05-01'));\nvar fireMask = dataset.select('FireMask');\nvar fireMaskVis = {\n min: 3.0,\n max: 8.0,\n};\nMap.setCenter(6.746, 46.529, 2);\nMap.addLayer(fireMask, fireMaskVis, 'Fire Mask');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/MODIS/MODIS_061_MYD14A2) \n[MYD14A2.061: Aqua Thermal Anomalies \\& Fire 8-Day Global 1km](/earth-engine/datasets/catalog/MODIS_061_MYD14A2) \nThe MYD14A2 V6.1 dataset provides 8-day fire mask composites at 1km resolution. It contains the maximum value of the individual pixel classes over the compositing period. Along with the fire mask, an associated quality information layer is also provided. Documentation: User's Guide Algorithm Theoretical Basis Document (ATBD) General Documentation \nMODIS/061/MYD14A2, 8-day,aqua,fire,global,modis,nasa,usgs \n2002-07-04T00:00:00Z/2025-08-13T00:00:00Z \n-90 -180 90 180 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [https://doi.org/10.5067/MODIS/MYD14A2.061](https://doi.org/https://doi.org/10.5067/MODIS/MYD14A2.061)\n- [https://doi.org/10.5067/MODIS/MYD14A2.061](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/MODIS_061_MYD14A2)"]]
