يتضمّن هذا المنتج من المستوى 3 بيانات حول لون المحيط وبيانات حول بيولوجيا المحيطات من الأقمار الصناعية، وقد تم إنتاجها أو جمعها بموجب EOSDIS.
يمكن استخدام مجموعة البيانات هذه لدراسة علم الأحياء وعلم المياه في المناطق الساحلية، والتغيّرات في التنوّع والتوزيع الجغرافي للمواطن البحرية الساحلية، وتدفّقات الكيمياء الحيوية الجغرافية وتأثيرها في محيطات الأرض ومناخها بمرور الوقت، وأخيرًا تأثير التغيّر المناخي والبيئي على النظم البيئية للمحيطات والتنوّع البيولوجي الذي تدعمه.
NASA Goddard Space Flight Center, Ocean Ecology Laboratory, Ocean Biology
Processing Group. Sea-viewing Wide Field-of-view Sensor (SeaWiFS) Data,
NASA OB.DAAC, Greenbelt, MD, USA.
doi:10.5067/ORBVIEW-2/SEAWIFS/L1/DATA/1
NASA Ocean Biology Processing Group. (2018). SEAWIFS-ORBVIEW-2 Level
3 Mapped Particulate Organic Carbon Data Version R2018.0 [مجموعة
بيانات]. مركز بيانات NASA Ocean Biology DAAC
NASA Ocean Biology Processing Group. (2018). SEAWIFS-ORBVIEW-2 Level
3 Mapped Remote-Sensing Reflectance Data Version R2018.0 [مجموعة بيانات]. مركز بيانات NASA Ocean Biology DAAC
يتضمّن هذا المنتج من المستوى 3 بيانات حول لون المحيط وبيانات بيولوجية حول المحيط تم إنتاجها أو جمعها بموجب EOSDIS. يمكن استخدام مجموعة البيانات هذه لدراسة علم الأحياء وعلم المياه في المناطق الساحلية، والتغييرات في تنوّع الموائل البحرية الساحلية وتوزيعها الجغرافي، وتدفّقات الكيمياء الحيوية الجغرافية وتأثيرها في محيطات الأرض…
[null,null,[],[[["\u003cp\u003eThe NASA/OCEANDATA/SeaWiFS/L3SMI dataset provides ocean color and satellite ocean biology data from September 4, 1997, to December 10, 2010, and is useful for studying coastal zones, marine habitats, and ocean ecosystems.\u003c/p\u003e\n"],["\u003cp\u003eThe dataset includes bands such as chlorophyll a concentration, particulate organic carbon, and remote sensing reflectance at various wavelengths, with a spatial resolution of 9200 meters.\u003c/p\u003e\n"],["\u003cp\u003eProvided by NASA OB.DAAC, this dataset is in the public domain and available without restriction on use and distribution, according to NASA's Earth Science Data & Information Policy.\u003c/p\u003e\n"],["\u003cp\u003eUsers can explore and analyze this dataset using Earth Engine, a platform for petabyte-scale scientific analysis and visualization of geospatial datasets.\u003c/p\u003e\n"],["\u003cp\u003eThere are known data gaps in the dataset and some values, such as POC, may have been generated without a scale; detailed documentation and resources are available through the provided links.\u003c/p\u003e\n"]]],["The NASA SeaWiFS L3SMI dataset, provided by NASA OB.DAAC, offers daily ocean color and biology data from 1997 to 2010. It includes measurements of chlorophyll-a concentration, particulate organic carbon, and remote sensing reflectance at various wavelengths. This data can be used to analyze coastal zone biology and hydrology, track changes in marine habitats, and assess biogeochemical fluxes. The dataset, with a 9200-meter pixel size, is available in the public domain via Google Earth Engine.\n"],null,["# Ocean Color SMI: Standard Mapped Image SeaWiFS Data\n\nDataset Availability\n: 1997-09-04T15:26:33Z--2010-12-10T19:42:17Z\n\nDataset Provider\n:\n\n\n [NASA OB.DAAC at NASA Goddard Space Flight Center](https://oceancolor.gsfc.nasa.gov/)\n\nCadence\n: 1 Day\n\nTags\n:\n [biology](/earth-engine/datasets/tags/biology) [chlorophyll](/earth-engine/datasets/tags/chlorophyll) [nasa](/earth-engine/datasets/tags/nasa) [ocean](/earth-engine/datasets/tags/ocean) [oceandata](/earth-engine/datasets/tags/oceandata) [oceans](/earth-engine/datasets/tags/oceans) [reflectance](/earth-engine/datasets/tags/reflectance) [temperature](/earth-engine/datasets/tags/temperature) [weather](/earth-engine/datasets/tags/weather) \nseawifs \n\n#### Description\n\nThis level 3 product includes ocean color and satellite ocean biology data\nproduced or collected under [EOSDIS](https://earthdata.nasa.gov/about).\n\nThis dataset may be used for studying the biology and hydrology of\ncoastal zones, changes in the diversity and geographical distribution of\ncoastal marine habitats, biogeochemical fluxes and their influence in\nEarth's oceans and climate over time, and finally the impact of\nclimate and environmental variability and change on ocean ecosystems\nand the biodiversity they support.\n\nScale factor and offset are already applied.\n\nDocumentation:\n\n- [Ocean Color Forum](https://oceancolor.gsfc.nasa.gov/forum/oceancolor/forum_show.pl)\n\n- [Chlorophyll Forum](https://oceancolor.gsfc.nasa.gov/forum/oceancolor/forum_show.pl)\n\n- [Algorithm Theoretical Basis Document (Chlorophyll)](https://oceancolor.gsfc.nasa.gov/resources/atbd/chlor_a)\n\n- [Algorithm Theoretical Basis Document (Fluorescence Line Height)](https://oceancolor.gsfc.nasa.gov/resources/atbd/nflh)\n\n- [Algorithm Theoretical Basis Document (Particulate Organic Carbon)](https://oceancolor.gsfc.nasa.gov/resources/atbd/poc)\n\n- [Algorithm Theoretical Basis Document (Remote-Sensing Reflectance)](https://oceancolor.gsfc.nasa.gov/resources/atbd/rrs)\n\n- [Processing History](https://oceancolor.gsfc.nasa.gov/data/reprocessing)\n\n- There are number of missing data dates in this dataset. For example,\n most dates are missing between 2009-04-29 and 2009-12-01.\n\n- The estimated values for POC might be a result of the data being generated\n without a scale. For more information, visit the\n [SeaWiFS OceanData](https://oceancolor.gsfc.nasa.gov/about/missions/seawifs)\n\n### Bands\n\n\n**Pixel Size**\n\n9200 meters\n\n**Bands**\n\n| Name | Units | Min | Max | Pixel Size | Wavelength | Description |\n|-----------|---------|-----|---------|------------|------------|------------------------------------------|\n| `chlor_a` | mg/m\\^3 | 0\\* | 99.99\\* | meters | None | Chlorophyll a concentration |\n| `poc` | mg/m\\^3 | | | meters | None | Particulate organic carbon |\n| `Rrs_412` | sr-1 | 0\\* | 0.11\\* | meters | 412nm | Remote sensing reflectance at band 412nm |\n| `Rrs_443` | sr-1 | 0\\* | 0.11\\* | meters | 443nm | Remote sensing reflectance at band 443nm |\n| `Rrs_490` | sr-1 | 0\\* | 0.11\\* | meters | 490nm | Remote sensing reflectance at band 469nm |\n| `Rrs_510` | sr-1 | 0\\* | 0.11\\* | meters | 510nm | Remote sensing reflectance at band 488nm |\n| `Rrs_555` | sr-1 | 0\\* | 0.11\\* | meters | 555nm | Remote sensing reflectance at band 555nm |\n| `Rrs_670` | sr-1 | 0\\* | 0.11\\* | meters | 670nm | Remote sensing reflectance at band 531nm |\n\n\\* estimated min or max value\n\n### Image Properties\n\n**Image Properties**\n\n| Name | Type | Description |\n|--------------------------|--------|--------------------------------------------------------------------------|\n| Rrs_412_lastModified | STRING | Last date this product was modified |\n| Rrs_412_software_name | STRING | 'smigen' or 'l3mapgen'; name of the software used to create this product |\n| Rrs_412_software_version | STRING | Version of the software used to create this product |\n| Rrs_443_lastModified | STRING | Last date this product was modified |\n| Rrs_443_software_name | STRING | 'smigen' or 'l3mapgen'; name of the software used to create this product |\n| Rrs_443_software_version | STRING | Version of the software used to create this product |\n| Rrs_555_lastModified | STRING | Last date this product was modified |\n| Rrs_555_software_name | STRING | 'smigen' or 'l3mapgen'; name of the software used to create this product |\n| Rrs_555_software_version | STRING | Version of the software used to create this product |\n| chlor_a_lastModified | STRING | Last date this product was modified |\n| chlor_a_software_name | STRING | 'smigen' or 'l3mapgen'; name of the software used to create this product |\n| chlor_a_software_version | STRING | Version of the software used to create this product |\n| poc_lastModified | STRING | Last date this product was modified |\n| poc_software_name | STRING | 'smigen' or 'l3mapgen'; name of the software used to create this product |\n| poc_software_version | STRING | Version of the software used to create this product |\n| Rrs_490_lastModified | STRING | Last date this product was modified |\n| Rrs_490_software_name | STRING | 'smigen' or 'l3mapgen'; name of the software used to create this product |\n| Rrs_490_software_version | STRING | Version of the software used to create this product |\n| Rrs_510_lastModified | STRING | Last date this product was modified |\n| Rrs_510_software_name | STRING | 'smigen' or 'l3mapgen'; name of the software used to create this product |\n| Rrs_510_software_version | STRING | Version of the software used to create this product |\n| Rrs_670_lastModified | STRING | Last date this product was modified |\n| Rrs_670_software_name | STRING | 'smigen' or 'l3mapgen'; name of the software used to create this product |\n| Rrs_670_software_version | STRING | Version of the software used to create this product |\n\n### Terms of Use\n\n**Terms of Use**\n\nThis dataset is in the public domain and is available\nwithout restriction on use and distribution. See [NASA's\nEarth Science Data \\& Information Policy](https://www.earthdata.nasa.gov/engage/open-data-services-and-software/data-and-information-policy)\nfor additional information.\n\n### Citations\n\nCitations:\n\n- NASA Goddard Space Flight Center, Ocean Ecology Laboratory, Ocean Biology\n Processing Group. Sea-viewing Wide Field-of-view Sensor (SeaWiFS) Data,\n NASA OB.DAAC, Greenbelt, MD, USA.\n [doi:10.5067/ORBVIEW-2/SEAWIFS/L1/DATA/1](https://doi.org/10.5067/ORBVIEW-2/SEAWIFS/L1/DATA/1)\n- NASA Ocean Biology Processing Group. (2018). *SEAWIFS-ORBVIEW-2 Level\n 3 Mapped Particulate Organic Carbon Data Version R2018.0* \\[Data\n set\\]. NASA Ocean Biology DAAC.\n- NASA Ocean Biology Processing Group. (2018). *SEAWIFS-ORBVIEW-2 Level\n 3 Mapped Remote-Sensing Reflectance Data Version R2018.0* \\[Data\n set\\]. NASA Ocean Biology DAAC.\n\n### DOIs\n\n- \u003chttps://doi.org/10.5067/ORBVIEW-2/SEAWIFS/L3M/CHL/2018\u003e\n- \u003chttps://doi.org/10.5067/ORBVIEW-2/SEAWIFS/L3M/POC/2018\u003e\n- \u003chttps://doi.org/10.5067/ORBVIEW-2/SEAWIFS/L3M/RRS/2018\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('NASA/OCEANDATA/SeaWiFS/L3SMI')\n .filter(ee.Filter.date('2009-07-01', '2009-08-30'));\nvar remoteSensingReflectance =\n dataset.select(['Rrs_670', 'Rrs_555', 'Rrs_443']);\nvar remoteSensingReflectanceVis = {\n min: 0.0,\n max: 0.03,\n};\nMap.setCenter(-52.12, -46.13, 1);\nMap.addLayer(\n remoteSensingReflectance, remoteSensingReflectanceVis,\n 'Remote Sensing Reflectance');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/NASA/NASA_OCEANDATA_SeaWiFS_L3SMI) \n[Ocean Color SMI: Standard Mapped Image SeaWiFS Data](/earth-engine/datasets/catalog/NASA_OCEANDATA_SeaWiFS_L3SMI) \nThis level 3 product includes ocean color and satellite ocean biology data produced or collected under EOSDIS. This dataset may be used for studying the biology and hydrology of coastal zones, changes in the diversity and geographical distribution of coastal marine habitats, biogeochemical fluxes and their influence in Earth's oceans ... \nNASA/OCEANDATA/SeaWiFS/L3SMI, biology,chlorophyll,nasa,ocean,oceandata,oceans,reflectance,temperature,weather \n1997-09-04T15:26:33Z/2010-12-10T19:42:17Z \n-90 -180 90 180 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [https://doi.org/10.5067/ORBVIEW-2/SEAWIFS/L3M/RRS/2018](https://doi.org/https://oceancolor.gsfc.nasa.gov/)\n- [https://doi.org/10.5067/ORBVIEW-2/SEAWIFS/L3M/RRS/2018](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/NASA_OCEANDATA_SeaWiFS_L3SMI)"]]
