Das Produkt „Suomi National Polar-Orbiting Partnership (Suomi NPP) NASA Visible Infrared Imaging Radiometer Suite (VIIRS) Bidirectional Reflectance Distribution Function (BRDF) and Albedo Quality (VNP43IA2) Version 1“ bietet BRDF- und Albedo-Qualität mit einer Auflösung von 500 m. Das Produkt VNP43IA2 wird täglich aus 16 Tagen VIIRS-Daten erstellt und zeitlich auf den neunten Tag gewichtet, was sich im Dateinamen widerspiegelt.
Das Produkt VNP43IA2 enthält Informationen zur Bandqualität und zu Tagen mit gültigen Beobachtungen innerhalb eines 16-Tage-Zeitraums für die VIIRS-Bildbänder.
Die VNP43-Datenprodukte sollen die Kontinuität der BRDF-/Albedo-Datenproduktreihe des Moderate Resolution Imaging Spectroradiometer (MODIS) der NASA fördern.
Zenitwinkel der Sonne am lokalen Sonnenhöchststand
BRDF_Albedo_Platform
Meter
Plattformname
BRDF_Albedo_Uncertainty
Meter
Gewicht der Bestimmung (Weight of Determination, WoD) von WSA
BRDF_Albedo_ValidObs_I1
t
Meter
Tage mit gültiger Beobachtung im 16-Tage-Zeitraum für Band I1
BRDF_Albedo_ValidObs_I2
t
Meter
Tage mit gültigen Beobachtungen im 16‑Tages-Zeitraum für Band I2
BRDF_Albedo_ValidObs_I3
t
Meter
Tage mit gültigen Beobachtungen im 16‑Tages-Zeitraum für Band I3
Snow_BRDF_Albedo
Meter
Schneeflagge
BRDF_Albedo_Band_Quality_I1 Class Table
Wert
Farbe
Beschreibung
0
Keine
Beste Qualität, vollständige Inversion (WoDs, RMSE mehrheitlich gut)
1
Keine
Gute Qualität, vollständige Inversion
2
Keine
Magnitude-Inversion (numobs ≥ 7)
3
Keine
Magnitude-Inversion (numobs ≥ 2 & 7)
BRDF_Albedo_Band_Quality_I2 Class Table
Wert
Farbe
Beschreibung
0
Keine
Beste Qualität, vollständige Inversion (WoDs, RMSE mehrheitlich gut)
1
Keine
Gute Qualität, vollständige Inversion
2
Keine
Magnitude-Inversion (numobs ≥ 7)
3
Keine
Magnitude-Inversion (numobs ≥ 2 & 7)
BRDF_Albedo_Band_Quality_I3 Class Table
Wert
Farbe
Beschreibung
0
Keine
Beste Qualität, vollständige Inversion (WoDs, RMSE mehrheitlich gut)
1
Keine
Gute Qualität, vollständige Inversion
2
Keine
Magnitude-Inversion (numobs ≥ 7)
3
Keine
Magnitude-Inversion (numobs ≥ 2 & 7)
BRDF_Albedo_LandWaterType Class Table
Wert
Farbe
Beschreibung
0
Keine
Flacher Ozean
1
Keine
Land (Nichts als Land)
2
Keine
Meeres- und Seeufer
3
Keine
Flache Binnengewässer
4
Keine
Flüchtiges Wasser
5
Keine
Tiefes Binnengewässer
6
Keine
Gemäßigter oder kontinentaler Ozean
7
Keine
Tiefsee
Snow_BRDF_Albedo Class Table
Wert
Farbe
Beschreibung
0
Keine
Albedo ohne Schnee abgerufen
1
Keine
Schnee-Albedo abgerufen
Nutzungsbedingungen
Nutzungsbedingungen
LP DAAC-Daten der NASA sind frei zugänglich. Wenn ein Autor diese Daten oder auf den Daten basierende Arbeiten veröffentlicht, wird er jedoch gebeten, die Datasets im Text der Publikation zu zitieren und eine Referenz in die Referenzliste aufzunehmen.
Das Produkt „Suomi National Polar-Orbiting Partnership (Suomi NPP) NASA Visible Infrared Imaging Radiometer Suite (VIIRS) Bidirectional Reflectance Distribution Function (BRDF) and Albedo Quality (VNP43IA2) Version 1“ bietet BRDF- und Albedo-Qualität mit einer Auflösung von 500 Metern. Das Produkt VNP43IA2 wird täglich aus 16 Tagen VIIRS-Daten erstellt und zeitlich gewichtet.
[null,null,[],[[["\u003cp\u003eThe NOAA/VIIRS/001/VNP43IA2 dataset provides daily Bidirectional Reflectance Distribution Function (BRDF) and Albedo quality information at 500m resolution, derived from Suomi NPP VIIRS imagery.\u003c/p\u003e\n"],["\u003cp\u003eThe product utilizes 16 days of VIIRS data, temporally weighted to the ninth day, offering insights into band quality and valid observation days.\u003c/p\u003e\n"],["\u003cp\u003eVNP43IA2 includes bands for BRDF inversion information, land/water type, solar zenith angle, platform details, uncertainty, valid observations, and a snow flag.\u003c/p\u003e\n"],["\u003cp\u003eUsers can access the dataset through Google Earth Engine and find comprehensive documentation, including a User's Guide and ATBD, via provided links.\u003c/p\u003e\n"],["\u003cp\u003eIt is crucial to cite the dataset appropriately when publishing research based on it, as detailed on the LP DAAC 'Citing Our Data' page.\u003c/p\u003e\n"]]],[],null,["# VNP43IA2: BRDF/Albedo Quality Daily L3 Global 500m SIN Grid\n\nDataset Availability\n: 2012-01-17T00:00:00Z--2024-06-09T00:00:00Z\n\nDataset Provider\n:\n\n\n [NASA LP DAAC at the USGS EROS Center](https://doi.org/10.5067/VIIRS/VNP43IA2.001)\n\nCadence\n: 1 Day\n\nTags\n:\n[land](/earth-engine/datasets/tags/land) [nasa](/earth-engine/datasets/tags/nasa) [noaa](/earth-engine/datasets/tags/noaa) [satellite-imagery](/earth-engine/datasets/tags/satellite-imagery) [surface](/earth-engine/datasets/tags/surface) [viirs](/earth-engine/datasets/tags/viirs) \n\n#### Description\n\nThe Suomi National Polar-Orbiting Partnership (Suomi NPP) NASA Visible\nInfrared Imaging Radiometer Suite (VIIRS) Bidirectional Reflectance\nDistribution Function (BRDF) and Albedo Quality (VNP43IA2) Version 1 product\nprovides BRDF and Albedo quality at 500m resolution. The VNP43IA2\nproduct is produced daily using 16 days of VIIRS data and is weighted\ntemporally to the ninth day, which is reflected in the file name.\nThe VNP43IA2 product provides information regarding band quality and days\nof valid observation within a 16-day period for the VIIRS imagery bands.\nThe VNP43 data products are designed to promote the continuity of\nNASA's Moderate Resolution Imaging Spectroradiometer (MODIS)\nBRDF/Albedo data product suite.\n\nDocumentation:\n\n- [User's Guide](https://www.umb.edu/spectralmass/viirs_user_guide/vnp43ia2_and_vnp43ma2_brdf_albedo_quality_product)\n\n- [Algorithm Theoretical Basis Document (ATBD)](https://lpdaac.usgs.gov/documents/194/VNP43_ATBD_V1.pdf)\n\n- [General Documentation](https://lpdaac.usgs.gov/products/vnp43ia2v001/)\n\n- [Land Product Quality Assessment website](https://landweb.modaps.eosdis.nasa.gov/browse?sensor=VIIRS&sat=SNPP)\n\n### Bands\n\n\n**Pixel Size**\n\n500 meters\n\n**Bands**\n\n| Name | Units | Pixel Size | Description |\n|-------------------------------|-------|------------|------------------------------------------------------------|\n| `BRDF_Albedo_Band_Quality_I1` | | meters | BRDF inversion information I1 |\n| `BRDF_Albedo_Band_Quality_I2` | | meters | BRDF inversion information I2 |\n| `BRDF_Albedo_Band_Quality_I3` | | meters | BRDF inversion information I3 |\n| `BRDF_Albedo_LandWaterType` | | meters | Land/Water type |\n| `BRDF_Albedo_LocalSolarNoon` | deg | meters | Solar zenith angle at local solar noon |\n| `BRDF_Albedo_Platform` | | meters | Platform name |\n| `BRDF_Albedo_Uncertainty` | | meters | Weight of Determination (WoD) of WSA |\n| `BRDF_Albedo_ValidObs_I1` | d | meters | Days of valid observation within 16-day period for band I1 |\n| `BRDF_Albedo_ValidObs_I2` | d | meters | Days of valid observation within 16-day period for band I2 |\n| `BRDF_Albedo_ValidObs_I3` | d | meters | Days of valid observation within 16-day period for band I3 |\n| `Snow_BRDF_Albedo` | | meters | Snow flag |\n\n**BRDF_Albedo_Band_Quality_I1 Class Table**\n\n| Value | Color | Description |\n|-------|-------|---------------------------------------------------------|\n| 0 | None | best quality, full inversion (WoDs, RMSE majority good) |\n| 1 | None | good quality, full inversion |\n| 2 | None | Magnitude inversion (numobs ≥ 7) |\n| 3 | None | Magnitude inversion (numobs ≥ 2 \\& 7) |\n\n**BRDF_Albedo_Band_Quality_I2 Class Table**\n\n| Value | Color | Description |\n|-------|-------|---------------------------------------------------------|\n| 0 | None | best quality, full inversion (WoDs, RMSE majority good) |\n| 1 | None | good quality, full inversion |\n| 2 | None | Magnitude inversion (numobs ≥ 7) |\n| 3 | None | Magnitude inversion (numobs ≥ 2 \\& 7) |\n\n**BRDF_Albedo_Band_Quality_I3 Class Table**\n\n| Value | Color | Description |\n|-------|-------|---------------------------------------------------------|\n| 0 | None | best quality, full inversion (WoDs, RMSE majority good) |\n| 1 | None | good quality, full inversion |\n| 2 | None | Magnitude inversion (numobs ≥ 7) |\n| 3 | None | Magnitude inversion (numobs ≥ 2 \\& 7) |\n\n**BRDF_Albedo_LandWaterType Class Table**\n\n| Value | Color | Description |\n|-------|-------|-------------------------------|\n| 0 | None | Shallow ocean |\n| 1 | None | Land (Nothing else but land) |\n| 2 | None | Ocean and lake shorelines |\n| 3 | None | Shallow inland water |\n| 4 | None | Ephemeral water |\n| 5 | None | Deep inland water |\n| 6 | None | Moderate or continental ocean |\n| 7 | None | Deep ocean |\n\n**Snow_BRDF_Albedo Class Table**\n\n| Value | Color | Description |\n|-------|-------|----------------------------|\n| 0 | None | snow-free albedo retrieved |\n| 1 | None | snow albedo retrieved |\n\n### Terms 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\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/VIIRS/VNP43IA2.001\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('NOAA/VIIRS/001/VNP43IA2')\n .filter(ee.Filter.date('2021-06-01', '2021-06-03'));\n\nvar visualization = {\n bands: ['BRDF_Albedo_ValidObs_I1'],\n min: 35550,\n max: 45535,\n palette: [\n '000080', '0000d9', '4000ff', '8000ff', '0080ff', '00ffff',\n '00ff80', '80ff00', 'daff00', 'ffff00', 'fff500', 'ffda00',\n 'ffb000', 'ffa400', 'ff4f00', 'ff2500', 'ff0a00', 'ff00ff',\n ]\n};\n\nMap.setCenter(89, 58, 6);\n\nMap.addLayer(dataset, visualization, 'Days of valid observation for band I1');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/NOAA/NOAA_VIIRS_001_VNP43IA2) \n[VNP43IA2: BRDF/Albedo Quality Daily L3 Global 500m SIN Grid](/earth-engine/datasets/catalog/NOAA_VIIRS_001_VNP43IA2) \nThe Suomi National Polar-Orbiting Partnership (Suomi NPP) NASA Visible Infrared Imaging Radiometer Suite (VIIRS) Bidirectional Reflectance Distribution Function (BRDF) and Albedo Quality (VNP43IA2) Version 1 product provides BRDF and Albedo quality at 500m resolution. The VNP43IA2 product is produced daily using 16 days of VIIRS data and is weighted temporally ... \nNOAA/VIIRS/001/VNP43IA2, land,nasa,noaa,satellite-imagery,surface,viirs \n2012-01-17T00:00:00Z/2024-06-09T00:00:00Z \n-90 -180 90 180 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [https://doi.org/10.5067/VIIRS/VNP43IA2.001](https://doi.org/https://doi.org/10.5067/VIIRS/VNP43IA2.001)\n- [https://doi.org/10.5067/VIIRS/VNP43IA2.001](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/NOAA_VIIRS_001_VNP43IA2)"]]
