Günlük Suomi National Polar-Orbiting Partnership NASA Visible Infrared
Imaging Radiometer Suite (VIIRS) Thermal Anomalies/Fire (VNP14A1) Version 1
veri ürünü, aktif yangınlar ve diğer termal anormallikler hakkında günlük bilgi sağlar. VNP14A1 veri ürünü, günlük (24 saatlik) bir süre boyunca VIIRS 750 m bantlarından algılanan yangın piksellerinin küresel, 1 km ızgaralı bir bileşimidir.
VNP14 veri ürünleri, Orta Çözünürlüklü Görüntüleme Spektroradyometresi (MODIS) Termal Anomaliler/Yangın ürün paketine göre tasarlanmıştır.
7-10. bitler: arka plan penceresi boyutu parametresi
11-16. bitler: Bireysel algılama testi işaretleri
0: başarısız
1: kart
17-19. bitler: Kullanılmayan1
0: Kullanılmayan değer
20. bit: bitişik bulut pikseli
0: hayır
1: evet
21. bit: bitişik su pikseli
0: hayır
1: evet
22-23. bitler: Güneş parıltısı seviyesi
0: Güneş parıltısı seviyesi - 1
1: Güneş parıltısı seviyesi - 2
2: Güneş parıltısı düzeyi - 3
3: Güneş parıltısı seviyesi - 4
24-28. bitler: Ayrı ayrı ret testi işaretleri
0: false
1: doğru
Bit 29-31: Unused2
0: Kullanılmayan değer
sample
metre
Bir şerit içindeki örnek sayısı
FireMask Sınıf Tablosu
Değer
Renk
Açıklama
0
Yok
İşlenmedi (veri yok veya veriler düşük kaliteli)
1
Yok
İşlenmedi (papyon silme)
2
Yok
Kullanılmamış
3
Yok
Su
4
Yok
Cloud
5
Yok
Arsa
6
Yok
Sınıflandırılmamış
7
Yok
Düşük güvenilirlik düzeyine sahip dönüşüm pikseli
8
Yok
Nominal güven yangın pikseli
9
Yok
Yüksek güvenilirlikli yangın pikseli
Kullanım Şartları
Kullanım Şartları
LP DAAC NASA verilerine ücretsiz olarak erişilebilir. Ancak bir yazar bu verileri veya verilere dayalı çalışmaları yayınladığında, yayın metninde veri kümelerini alıntılaması ve referans listesine bunlarla ilgili bir referans eklemesi istenir.
Günlük Suomi National Polar-Orbiting Partnership NASA Visible Infrared Imaging Radiometer Suite (VIIRS) Thermal Anomalies/Fire (VNP14A1) Version 1 veri ürünü, aktif yangınlar ve diğer termal anormallikler hakkında günlük bilgi sağlar. VNP14A1 veri ürünü, VIIRS 750 m bantlarından algılanan yangın piksellerinin küresel, 1 km'lik ızgara kompozitidir.
[null,null,[],[[["\u003cp\u003eThe NASA VIIRS VNP14A1 dataset provides daily, global, 1km data on active fires and thermal anomalies detected by the Suomi NPP satellite.\u003c/p\u003e\n"],["\u003cp\u003eThe dataset includes information on fire confidence, maximum fire radiative power, and quality control, with data available from 2012-01-19 to 2024-12-10.\u003c/p\u003e\n"],["\u003cp\u003eUsers are requested to cite the dataset appropriately when publishing results based on this data, with specific citation guidance available on the LP DAAC website.\u003c/p\u003e\n"],["\u003cp\u003eThe data is freely accessible and can be explored and analyzed using Google Earth Engine.\u003c/p\u003e\n"]]],["The NASA VIIRS VNP14A1 dataset provides daily, 1km gridded data on active fires and thermal anomalies from 2012-01-19 to 2025-02-21. Data, sourced from the VIIRS instrument, includes fire pixel confidence, maximum fire radiative power, and quality assessments. It is accessible via the NASA LP DAAC and Google Earth Engine. Users can access it, visualize and use it with the provided snippets, and cite it as requested by the provider.\n"],null,["Dataset Availability\n: 2012-01-19T00:00:00Z--2025-08-30T00:00:00Z\n\nDataset Provider\n:\n\n\n [NASA LP DAAC at the USGS EROS Center](https://doi.org/10.5067/VIIRS/VNP14A1.002)\n\nCadence\n: 1 Day\n\nTags\n:\n[fire](/earth-engine/datasets/tags/fire) [land](/earth-engine/datasets/tags/land) [nasa](/earth-engine/datasets/tags/nasa) [noaa](/earth-engine/datasets/tags/noaa) [surface](/earth-engine/datasets/tags/surface) [viirs](/earth-engine/datasets/tags/viirs) \n\nDescription \nThe daily Suomi National Polar-Orbiting Partnership NASA Visible Infrared\nImaging Radiometer Suite (VIIRS) Thermal Anomalies/Fire (VNP14A1) Version 1\ndata product provides daily information about active fires and other thermal\nanomalies. The VNP14A1 data product is a global, 1km gridded composite of\nfire pixels detected from VIIRS 750m bands over a daily (24-hour) period.\nThe VNP14 data products are designed after the Moderate Resolution Imaging\nSpectroradiometer (MODIS) Thermal Anomalies/Fire product suite.\n\nDocumentation:\n\n- [User's Guide](https://lpdaac.usgs.gov/documents/427/VNP14_User_Guide_V1.pdf)\n\n- [Algorithm Theoretical Basis Document (ATBD)](https://lpdaac.usgs.gov/documents/427/VNP14_User_Guide_V1.pdf)\n\n- [General Documentation](https://lpdaac.usgs.gov/products/vnp14a1v002/)\n\n- [Land Product Quality Assessment website](https://landweb.modaps.eosdis.nasa.gov/browse?sensor=VIIRS&sat=SNPP)\n\nBands\n\n\n**Pixel Size**\n\n1000 meters\n\n**Bands**\n\n| Name | Units | Pixel Size | Description |\n|------------|-------|------------|-----------------------------------------------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| `FireMask` | | meters | Confidence of fire. |\n| `MaxFRP` | MW | meters | Maximum Fire Radiative Power |\n| `QA` | | meters | Global Land Surface Phenology Quality Control |\n| Bitmask for QA - Bits 0-1: land/water state - 0: water - 1: coast - 2: land - 3: unused - Bit 2: EDR ground trim zone - 0: false - 1: true - Bit 3: atmospheric correction performed - 0: no - 1: yes - Bit 4: day/night algorithm - 0: night - 1: day - Bit 5: potential fire pixel - 0: false - 1: true - Bit 6: Unused0 - 0: Unused value - Bits 7-10: background window size parameter - Bits 11-16: individual detection test flags - 0: fail - 1: pass - Bits 17-19: Unused1 - 0: Unused value - Bit 20: adjacent cloud pixel - 0: no - 1: yes - Bit 21: adjacent water pixel - 0: no - 1: yes - Bits 22-23: Sun glint level - 0: Sun glint level - 1 - 1: Sun glint level - 2 - 2: Sun glint level - 3 - 3: Sun glint level - 4 - Bits 24-28: individual rejection test flags - 0: false - 1: true - Bits 29-31: Unused2 - 0: Unused value ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||\n| `sample` | | meters | Sample number within a swath |\n\n**FireMask Class Table**\n\n| Value | Color | Description |\n|-------|-------|----------------------------------------------|\n| 0 | None | Not processed (no data or poor quality data) |\n| 1 | None | Not processed (bowtie deletion) |\n| 2 | None | Unused |\n| 3 | None | Water |\n| 4 | None | Cloud |\n| 5 | None | Land |\n| 6 | None | Unclassified |\n| 7 | None | Low confidence fire pixel |\n| 8 | None | Nominal confidence fire pixel |\n| 9 | None | High confidence fire pixel |\n\nTerms of Use\n\n**Terms of Use**\n\nLP DAAC NASA data are freely accessible; however, when an author\npublishes these data or works based on the data, it is requested that the\nauthor cite the datasets within the text of the publication and include a\nreference to them in the reference list.\n\nCitations \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\nDOIs\n\n- \u003chttps://doi.org/10.5067/VIIRS/VNP14A1.002\u003e\n\nExplore with Earth Engine **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\nCode Editor (JavaScript) \n\n```javascript\nvar dataset = ee.ImageCollection('NASA/VIIRS/002/VNP14A1')\n .filter(ee.Filter.date('2017-05-01', '2017-12-30'));\nvar visualization = {\n bands:['MaxFRP'],\n min: 0.0,\n max: 1.0,\n palette: ['#00FF00', '#00FFFF', '#00FF00', '#FFFFE0', '#FFFFA0', '#FFFF00'],\n};\nvar lon = 38.06;\nvar lat = -14.22;\nMap.setCenter(lon, lat, 6);\nMap.addLayer(dataset, visualization, 'MaxFRP');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/NASA/NASA_VIIRS_002_VNP14A1) \n[VNP14A1.002: Thermal Anomalies/Fire Daily L3 Global 1km SIN Grid](/earth-engine/datasets/catalog/NASA_VIIRS_002_VNP14A1) \nThe daily Suomi National Polar-Orbiting Partnership NASA Visible Infrared Imaging Radiometer Suite (VIIRS) Thermal Anomalies/Fire (VNP14A1) Version 1 data product provides daily information about active fires and other thermal anomalies. The VNP14A1 data product is a global, 1km gridded composite of fire pixels detected from VIIRS 750m bands over a ... \nNASA/VIIRS/002/VNP14A1, fire,land,nasa,noaa,surface,viirs \n2012-01-19T00:00:00Z/2025-08-30T00:00:00Z \n-90 -180 90 180 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [https://doi.org/10.5067/VIIRS/VNP14A1.002](https://doi.org/https://doi.org/10.5067/VIIRS/VNP14A1.002)\n- [https://doi.org/10.5067/VIIRS/VNP14A1.002](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/NASA_VIIRS_002_VNP14A1)"]]
