המדד המשופר של צמחייה (EVI) נוצר מהפסים של אינפרא-אדום קרוב, אדום וכחול של כל סצנה, והערך שלו נע בין -1.0 ל-1.0. פרטים נוספים זמינים במאמר Huete et al. (2002). המוצר הזה נוצר מנתוני רפלקטיביות של פני השטח של MODIS/006/MYD09GA.
תחום תדרים
תחום תדרים
שם
גודל הפיקסל
תיאור
EVI
463.313 מטרים
מדד צמחייה משופר
תנאים והגבלות
תנאים והגבלות
אין הגבלות על שימוש, מכירה או הפצה מחדש של נתונים ומוצרים של MODIS שנרכשו דרך LP DAAC.
מדד הצמחייה המשופר (EVI) נוצר מהפסים של אינפרא-אדום קרוב, אדום וכחול של כל סצנה, והערך שלו נע בין -1.0 ל-1.0. פרטים נוספים זמינים במאמר של Huete et al. (2002). המוצר הזה נוצר מנתוני רפלקטיביות של פני השטח של MODIS/006/MYD09GA.
[null,null,[],[[["\u003cp\u003eThe MODIS/MYD09GA_006_EVI dataset provides daily Enhanced Vegetation Index (EVI) data globally from July 4, 2002, to February 25, 2023.\u003c/p\u003e\n"],["\u003cp\u003eEVI values, ranging from -1.0 to 1.0, are derived from the Near-IR, Red, and Blue bands of MODIS/006/MYD09GA surface reflectance composites.\u003c/p\u003e\n"],["\u003cp\u003eThis dataset is freely available for use, sale, and redistribution with no restrictions, provided by Google Earth Engine.\u003c/p\u003e\n"],["\u003cp\u003eThe dataset has a 463.313-meter pixel resolution and is accessible through the Earth Engine platform using the \u003ccode\u003eee.ImageCollection("MODIS/MYD09GA_006_EVI")\u003c/code\u003e code snippet.\u003c/p\u003e\n"],["\u003cp\u003eUsers can explore the dataset and visualize EVI using the provided JavaScript code example within the Google Earth Engine Code Editor.\u003c/p\u003e\n"]]],["The dataset, available from 2002-07-04 to 2023-02-25, provides the Enhanced Vegetation Index (EVI) derived from MODIS/MYD09GA surface reflectance composites, with a daily cadence. This data, with values ranging from -1.0 to 1.0, is sourced from Google Earth Engine, which can be accessed through registration. The EVI, calculated from Near-IR, Red, and Blue bands, has a pixel size of 463.313 meters. The MODIS data has no restrictions on use.\n"],null,["# MODIS Aqua Daily EVI\n\nDataset Availability\n: 2002-07-04T00:00:00Z--2023-02-25T00:00:00Z\n\nDataset Provider\n:\n\n\n [Google](https://earthengine.google.com/)\n\nCadence\n: 1 Day\n\nTags\n:\n aqua \n daily \n evi \n global \n modis \n myd09ga \n surface-reflectance \n usgs \nvegetation-indices \n\n#### Description\n\nThe Enhanced Vegetation Index (EVI) is generated from the\nNear-IR, Red and Blue bands of each scene, and ranges in value from\n-1.0 to 1.0. See\n[Huete et al. (2002)](https://www.sciencedirect.com/science/article/pii/S0034425702000962)\nfor details. This product is generated from the MODIS/006/MYD09GA surface reflectance composites.\n\n### Bands\n\n**Bands**\n\n| Name | Pixel Size | Description |\n|-------|----------------|---------------------------|\n| `EVI` | 463.313 meters | Enhanced Vegetation Index |\n\n### Terms of Use\n\n**Terms of Use**\n\nMODIS data and products acquired through the LP DAAC have no restrictions on subsequent use, sale, or redistribution.\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/MYD09GA_006_EVI')\n .filter(ee.Filter.date('2018-04-01', '2018-06-01'));\nvar colorized = dataset.select('EVI');\nvar colorizedVis = {\n min: 0,\n max: 1,\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(-7.03, 31.05, 2);\nMap.addLayer(colorized, colorizedVis, 'Colorized');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/MODIS/MODIS_MYD09GA_006_EVI) \n[MODIS Aqua Daily EVI](/earth-engine/datasets/catalog/MODIS_MYD09GA_006_EVI) \nThe Enhanced Vegetation Index (EVI) is generated from the Near-IR, Red and Blue bands of each scene, and ranges in value from -1.0 to 1.0. See Huete et al. (2002) for details. This product is generated from the MODIS/006/MYD09GA surface reflectance composites. \nMODIS/MYD09GA_006_EVI, aqua,daily,evi,global,modis,surface-reflectance,usgs,vegetation-indices \n2002-07-04T00:00:00Z/2023-02-25T00:00:00Z \n-90 -180 90 180 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [](https://doi.org/https://earthengine.google.com/)\n- [](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/MODIS_MYD09GA_006_EVI)"]]
