[null,null,[],[[["\u003cp\u003eThe MCD18C2 Version 6.2 dataset provides daily estimates of Photosynthetically Active Radiation (PAR) every 3 hours, derived from combined MODIS Terra and Aqua data.\u003c/p\u003e\n"],["\u003cp\u003eThis gridded Level 3 product has a spatial resolution of 0.05 degrees (approximately 5,600 meters at the equator) and covers the period from February 24, 2000, to March 1, 2010.\u003c/p\u003e\n"],["\u003cp\u003eThe dataset, available through NASA LP DAAC and accessible via Google Earth Engine, includes eight bands representing total PAR at 3-hour intervals throughout the day.\u003c/p\u003e\n"],["\u003cp\u003eThe MODIS data and products are freely available without restrictions on subsequent use, sale, or redistribution.\u003c/p\u003e\n"],["\u003cp\u003eThis dataset uses a look-up table (LUT) approach to calculate incident PAR based on multi-temporal MODIS data, considering different aerosol and cloud loadings.\u003c/p\u003e\n"]]],["The MCD18C2 Version 6.2 dataset, provided by NASA LP DAAC, offers daily 0.05-degree resolution data on Photosynthetically Active Radiation (PAR) from 2000-02-24 to 2024-10-24. It uses MODIS Terra and Aqua data and provides PAR estimates every 3 hours in eight bands at GMT 00:00 through 21:00. The dataset, accessible via Google Earth Engine, is derived from a look-up table method considering aerosols, clouds, and illumination. All data is free for use.\n"],null,["Dataset Availability\n: 2000-02-24T00:00:00Z--2025-08-01T00:00:00Z\n\nDataset Provider\n:\n\n\n [NASA LP DAAC at the USGS EROS Center](https://lpdaac.usgs.gov/products/mcd18c2v062/)\n\nCadence\n: 1 Day\n\nTags\n:\n[climate](/earth-engine/datasets/tags/climate) [par](/earth-engine/datasets/tags/par) [radiation](/earth-engine/datasets/tags/radiation) \n\nDescription \nThe MCD18C2 Version 6.2\nis a Moderate Resolution Imaging Spectroradiometer\n(MODIS) Terra and Aqua combined Photosynthetically Active Radiation (PAR)\ngridded Level 3 product produced daily at 0.05 degree (5,600 meters at the\nequator) resolution with estimates of PAR every 3 hours. PAR is incident\nsolar radiation in the visible spectrum (400-700 nanometers) and is an\nimportant variable in land-surface models that address a variety of\nscientific and application issues. The MCD18 products are based on a\nprototyping algorithm that uses multi-temporal signatures of MODIS data to\nderive surface reflectance and then calculate incident PAR using the look-up\ntable (LUT) approach. The LUTs consider different types of loadings of\naerosols and clouds at a variety of illumination/viewing geometry. Global\nPAR products are generated from MODIS and geostationary satellite data.\nAdditional details regarding the methodology used to create the data are\navailable in the\n[Algorithm Theoretical Basis Document](https://lpdaac.usgs.gov/documents/106/MCD18_ATBD.pdf)\n\nBands\n\n\n**Pixel Size**\n\n500 meters\n\n**Bands**\n\n| Name | Pixel Size | Description |\n|----------------|------------|------------------------|\n| `GMT_0000_PAR` | meters | Total PAR at GMT 00:00 |\n| `GMT_0300_PAR` | meters | Total PAR at GMT 03:00 |\n| `GMT_0600_PAR` | meters | Total PAR at GMT 06:00 |\n| `GMT_0900_PAR` | meters | Total PAR at GMT 09:00 |\n| `GMT_1200_PAR` | meters | Total PAR at GMT 12:00 |\n| `GMT_1500_PAR` | meters | Total PAR at GMT 15:00 |\n| `GMT_1800_PAR` | meters | Total PAR at GMT 18:00 |\n| `GMT_2100_PAR` | meters | Total PAR at GMT 21:00 |\n\nTerms 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\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/MODIS/MCD18C2.062\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('MODIS/062/MCD18C2')\n .filter(ee.Filter.date('2001-01-01', '2001-02-01'));\nvar gmt_1200_par = dataset.select('GMT_1200_PAR');\nvar gmt_1200_par_vis = {\n min: -236,\n max: 316,\n palette: ['0f17ff', 'b11406', 'f1ff23'],\n};\nMap.setCenter(6.746, 46.529, 2);\nMap.addLayer(\n gmt_1200_par, gmt_1200_par_vis,\n 'Total PAR at GMT 12:00');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/MODIS/MODIS_062_MCD18C2) \n[MCD18C2.062 Photosynthetically Active Radiation Daily 3-Hour](/earth-engine/datasets/catalog/MODIS_062_MCD18C2) \nThe MCD18C2 Version 6.2 is a Moderate Resolution Imaging Spectroradiometer (MODIS) Terra and Aqua combined Photosynthetically Active Radiation (PAR) gridded Level 3 product produced daily at 0.05 degree (5,600 meters at the equator) resolution with estimates of PAR every 3 hours. PAR is incident solar radiation in the visible spectrum ... \nMODIS/062/MCD18C2, climate,par,radiation \n2000-02-24T00:00:00Z/2025-08-01T00:00:00Z \n-90 -180 90 180 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [https://doi.org/10.5067/MODIS/MCD18C2.062](https://doi.org/https://lpdaac.usgs.gov/products/mcd18c2v062/)\n- [https://doi.org/10.5067/MODIS/MCD18C2.062](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/MODIS_062_MCD18C2)"]]
