Aqua Moderate Resolution Imaging Spectroradiometer (MODIS) Vegetation Indices (MYD13A3) 6.1 sürümü verileri, sinüs projeksiyonunda ızgaralı bir 3. düzey ürün olarak aylık bazda 1 kilometre (km) uzamsal çözünürlükte sağlanır. Bu aylık ürünü oluştururken algoritma, ay ile çakışan tüm MYD13A2 ürünlerini alır ve zamana göre ağırlıklı ortalama kullanır.
1: VI üretildi ancak diğer kalite güvencesi kontrollerini yapın
2: Pixel üretildi ancak büyük olasılıkla bulutlu
3: Pixel, bulutlardan farklı nedenlerle üretilmedi
2-5. bitler: VI kullanışlılığı
0: En yüksek kalite
1: Daha düşük kalite
2: Kaliteyi düşürme
4: Kaliteyi düşürme
8: Kalitenin düşmesi
9: Kaliteyi düşürme
10: Kaliteyi düşürme
12: En düşük kalite
13: Kalitesi o kadar düşük ki faydalı değil
14: L1B verileri hatalı
15: Başka bir nedenden dolayı yararlı değil/işlenmedi
6-7. bitler: Aerosol Miktarı
0: İklimbilim
1: Düşük
2: Orta
3: Yüksek
Bit 8: Bitişik bulut algılandı
0: Hayır
1: Evet
Bit 9: Atmosfer BRDF düzeltmesi
0: Hayır
1: Evet
Bit 10: Karışık Bulutlar
0: Hayır
1: Evet
11-13. bitler: Kara/su maskesi
0: Sığ okyanus
1: Arazi (arazi dışında hiçbir şey yok)
2: Okyanus kıyı şeritleri ve göl kıyı şeritleri
3: Sığ iç su
4: Geçici su
5: Derin iç sular
6: Orta veya kıtasal okyanus
7: Derin okyanus
Bit 14: Kar/buzlanma olabilir
0: Hayır
1: Evet
Bit 15: Olası gölge
0: Hayır
1: Evet
sur_refl_b01
0
10000
0,0001
metre
620-670nm
Yüzey yansıtma bandı 1 (kırmızı)
sur_refl_b02
0
10000
0,0001
metre
841-876nm
Yüzey yansıtma bandı 2 (kızılötesine yakın)
sur_refl_b03
0
10000
0,0001
metre
459-479nm
Yüzey yansıtma bandı 3 (mavi)
sur_refl_b07
0
10000
0,0001
metre
2105-2155nm
Yüzey yansıtma bandı 7 (orta kızılötesi)
ViewZenith
drc
0
18000
0,01
metre
Yok
VI Pixel'in tepe açısını görüntüleme
SolarZenith
drc
0
18000
0,01
metre
Yok
VI pikselinin güneş zenit açısı
RelativeAzimuth
drc
-18000
18000
0,01
metre
Yok
VI pikselinin göreceli azimut açısı
SummaryQA
metre
Yok
Görüntüleme pikselinin kalite güvenilirliği
SummaryQA Class Table
Değer
Renk
Açıklama
0
Yok
İyi Veriler: Güvenle kullanın
1
Yok
Sınırdaki Veriler: Yararlıdır ancak diğer KG bilgilerine de bakın.
2
Yok
Kar/Buz: Hedef kar/buz ile kaplı
3
Yok
Bulutlu: Hedef görünmüyor, bulutla kaplı
Kullanım Şartları
Kullanım Şartları
LP DAAC aracılığıyla edinilen MODIS verileri ve ürünleri, sonraki kullanım, satış veya yeniden dağıtım açısından herhangi bir kısıtlamaya tabi değildir.
Aqua Moderate Resolution Imaging Spectroradiometer (MODIS) Vegetation Indices (MYD13A3) Version 6.1 verileri, sinüsoidal projeksiyonda ızgaralı bir Seviye 3 ürünü olarak aylık 1 kilometre (km) uzamsal çözünürlükte sağlanır. Bu aylık ürünü oluştururken algoritma, ay ile çakışan tüm MYD13A2 ürünlerini alır ve …
[null,null,[],[[["\u003cp\u003eMYD13A3 V6.1 provides monthly vegetation indices (NDVI, EVI) at 1km resolution derived from NASA's Aqua MODIS sensor.\u003c/p\u003e\n"],["\u003cp\u003eThe dataset covers the globe from July 2002 to October 2024 and includes quality indicators and surface reflectance bands.\u003c/p\u003e\n"],["\u003cp\u003eIt's freely available for use, sale, and redistribution with attribution to the LP DAAC.\u003c/p\u003e\n"],["\u003cp\u003eUsers can explore and analyze the dataset through Google Earth Engine.\u003c/p\u003e\n"]]],[],null,["# MYD13A3.061 Aqua Vegetation Indices Monthly L3 Global 1 km SIN Grid\n\nDataset Availability\n: 2002-07-01T00:00:00Z--2025-07-01T00:00:00Z\n\nDataset Provider\n:\n\n\n [NASA LP DAAC at the USGS EROS Center](https://doi.org/10.5067/MODIS/MYD13A3.061)\n\nCadence\n: 1 Month\n\nTags\n:\n[aqua](/earth-engine/datasets/tags/aqua) [evi](/earth-engine/datasets/tags/evi) [global](/earth-engine/datasets/tags/global) [modis](/earth-engine/datasets/tags/modis) [monthly](/earth-engine/datasets/tags/monthly) [nasa](/earth-engine/datasets/tags/nasa) [ndvi](/earth-engine/datasets/tags/ndvi) [usgs](/earth-engine/datasets/tags/usgs) [vegetation](/earth-engine/datasets/tags/vegetation) [vegetation-indices](/earth-engine/datasets/tags/vegetation-indices) \n\n#### Description\n\nThe Aqua Moderate Resolution Imaging Spectroradiometer (MODIS) Vegetation\nIndices (MYD13A3) Version 6.1 data are provided monthly at 1 kilometer (km)\nspatial resolution as a gridded Level 3 product in the sinusoidal\nprojection. In generating this monthly product, the algorithm ingests all\nthe MYD13A2 products that overlap the month and employs a weighted temporal\naverage.\n\nDocumentation:\n\n- [User's Guide](https://lpdaac.usgs.gov/documents/621/MOD13_User_Guide_V61.pdf)\n\n- [Algorithm Theoretical Basis Document (ATBD)](https://lpdaac.usgs.gov/documents/104/MOD13_ATBD.pdf)\n\n- [General Documentation](https://ladsweb.modaps.eosdis.nasa.gov/filespec/MODIS/61/MYD13A3)\n\n### Bands\n\n\n**Pixel Size**\n\n1000 meters\n\n**Bands**\n\n| Name | Units | Min | Max | Scale | Pixel Size | Wavelength | Description |\n|-------------------|-------|--------|-------|--------|------------|-------------|--------------------------------------------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| `NDVI` | | -2000 | 10000 | 0.0001 | meters | None | Monthly NDVI average |\n| `EVI` | | -2000 | 10000 | 0.0001 | meters | None | Monthly EVI average |\n| `DetailedQA` | | | | | meters | None | VI Quality indicators |\n| Bitmask for DetailedQA - Bits 0-1: VI quality (MODLAND QA Bits) - 0: VI produced with good quality - 1: VI produced, but check other QA - 2: Pixel produced, but most probably cloudy - 3: Pixel not produced due to other reasons than clouds - Bits 2-5: VI usefulness - 0: Highest quality - 1: Lower quality - 2: Decreasing quality - 4: Decreasing quality - 8: Decreasing quality - 9: Decreasing quality - 10: Decreasing quality - 12: Lowest quality - 13: Quality so low that it is not useful - 14: L1B data faulty - 15: Not useful for any other reason/not processed - Bits 6-7: Aerosol Quantity - 0: Climatology - 1: Low - 2: Intermediate - 3: High - Bit 8: Adjacent cloud detected - 0: No - 1: Yes - Bit 9: Atmosphere BRDF correction - 0: No - 1: Yes - Bit 10: Mixed Clouds - 0: No - 1: Yes - Bits 11-13: Land/water mask - 0: Shallow ocean - 1: Land (nothing else but land) - 2: Ocean coastlines and lake shorelines - 3: Shallow inland water - 4: Ephemeral water - 5: Deep inland water - 6: Moderate or continental ocean - 7: Deep ocean - Bit 14: Possible snow/ice - 0: No - 1: Yes - Bit 15: Possible shadow - 0: No - 1: Yes ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||\n| `sur_refl_b01` | | 0 | 10000 | 0.0001 | meters | 620-670nm | Surface reflectance band 1 (red) |\n| `sur_refl_b02` | | 0 | 10000 | 0.0001 | meters | 841-876nm | Surface reflectance band 2 (near-infrared) |\n| `sur_refl_b03` | | 0 | 10000 | 0.0001 | meters | 459-479nm | Surface reflectance band 3 (blue) |\n| `sur_refl_b07` | | 0 | 10000 | 0.0001 | meters | 2105-2155nm | Surface reflectance band 7 (mid-infrared) |\n| `ViewZenith` | deg | 0 | 18000 | 0.01 | meters | None | View zenith angle of VI Pixel |\n| `SolarZenith` | deg | 0 | 18000 | 0.01 | meters | None | Sun zenith angle of VI pixel |\n| `RelativeAzimuth` | deg | -18000 | 18000 | 0.01 | meters | None | Relative azimuth angle of VI pixel |\n| `SummaryQA` | | | | | meters | None | Quality reliability of VI pixel |\n\n**SummaryQA Class Table**\n\n| Value | Color | Description |\n|-------|-------|---------------------------------------------------------|\n| 0 | None | Good Data: use with confidence |\n| 1 | None | Marginal Data: useful, but look at other QA information |\n| 2 | None | Snow/Ice: target covered with snow/ice |\n| 3 | None | Cloudy: target not visible, covered with cloud |\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/MYD13A3.061\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/MYD13A3')\n .filter(ee.Filter.date('2020-01-01', '2023-05-01'));\nvar ndvi = dataset.select('NDVI');\nvar ndviVis = {\n min: 0,\n max: 9000,\n palette: [\n 'ffffff', 'ce7e45', 'df923d', 'f1b555', 'fcd163', '99b718', '74a901',\n '66a000', '529400', '3e8601', '207401', '056201', '004c00', '023b01',\n '012e01', '011d01', '011301'\n ],\n};\nMap.setCenter(6.746, 46.529, 2);\nMap.addLayer(ndvi, ndviVis, 'NDVI');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/MODIS/MODIS_061_MYD13A3) \n[MYD13A3.061 Aqua Vegetation Indices Monthly L3 Global 1 km SIN Grid](/earth-engine/datasets/catalog/MODIS_061_MYD13A3) \nThe Aqua Moderate Resolution Imaging Spectroradiometer (MODIS) Vegetation Indices (MYD13A3) Version 6.1 data are provided monthly at 1 kilometer (km) spatial resolution as a gridded Level 3 product in the sinusoidal projection. In generating this monthly product, the algorithm ingests all the MYD13A2 products that overlap the month and employs ... \nMODIS/061/MYD13A3, aqua,evi,global,modis,monthly,nasa,ndvi,usgs,vegetation,vegetation-indices \n2002-07-01T00:00:00Z/2025-07-01T00:00:00Z \n-90 -180 90 180 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [https://doi.org/10.5067/MODIS/MYD13A3.061](https://doi.org/https://doi.org/10.5067/MODIS/MYD13A3.061)\n- [https://doi.org/10.5067/MODIS/MYD13A3.061](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/MODIS_061_MYD13A3)"]]
