| snippet:
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Monthly chlorophyll-a concentration from multiple sensors over two time periods |
| summary:
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Monthly chlorophyll-a concentration from multiple sensors over two time periods |
| extent:
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[[-77.0104166666667,35],[-60.9895833333333,46.0104166666667]] |
| accessInformation:
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Marine Geospatial Ecology Lab, Duke University; NASA; NOAA; ESA |
| thumbnail:
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thumbnail/thumbnail.png |
| maxScale:
|
1.7976931348623157E308 |
| typeKeywords:
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["Data","Service","Map Service","ArcGIS Server"] |
| description:
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<DIV STYLE="text-align:Left;font-size:12pt"><P><SPAN>This data product shows the monthly median concentration of the pigment Chlorophyll-a (mg/m³) in surface waters from 2010 to 2019 and 2020 to 2024. Chlorophyll-a concentration is often used as a proxy for phytoplankton abundance. This product was created by the Marine Geospatial Ecology Lab, Duke University using remote sensing data from multiple satellite sensors. These include the Moderate-resolution Imaging Spectro-radiometer (MODIS, onboard NASA's Aqua satellite), the Visible Infrared Imaging Radiometer Suite (VIIRS, onboard the Suomi NPP and NOAA-20 satellites), and the Ocean Colour Climate Change Initiative (OC-CCI) composite product developed by the European Space Agency (ESA). VIIRS provides improved spatial resolution and radiometric sensitivity compared to MODIS, enhancing detection of ocean color features. OC-CCI merges data from several sensors to produce a consistent, long-term climate-quality record of ocean color. This layer covers offshore waters from North Carolina to northern Maine, with a spatial resolution of 1,300 meters. Pixels with no data represent data points either consistently flagged during post-processing or shallower than 10 meters of depth. Pixels on rivers or lakes are also removed.</SPAN></P></DIV> |
| licenseInfo:
|
|
| catalogPath:
|
|
| title:
|
Chlorophyll_a_concentration |
| type:
|
Map Service |
| url:
|
|
| tags:
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[] |
| culture:
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en-US |
| name:
|
Chlorophyll_a_concentration |
| guid:
|
17E117E8-6071-4320-A18D-68639C60C5C7 |
| minScale:
|
0 |
| spatialReference:
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WGS_1984_Web_Mercator_Auxiliary_Sphere |