| snippet:
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Daily production of organic matter by the growth of phytoplankton in the surface mixed layer, net of phytoplankton respiration. Estimated at monthly resolution based on satellite observations of chl-a, PAR and SST, and model-derived estimates of mixed-layer depth, using the vertically-generalised production model (Behrenfeld & Falkowski, 1997). |
| summary:
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Daily production of organic matter by the growth of phytoplankton in the surface mixed layer, net of phytoplankton respiration. Estimated at monthly resolution based on satellite observations of chl-a, PAR and SST, and model-derived estimates of mixed-layer depth, using the vertically-generalised production model (Behrenfeld & Falkowski, 1997). |
| extent:
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[[-180,-56.0763715824655],[180,-25.5424051277679]] |
| accessInformation:
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National Institute of Water and Atmospheric Research Ltd. (NIWA) |
| thumbnail:
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thumbnail/thumbnail.png |
| maxScale:
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1.7976931348623157E308 |
| typeKeywords:
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["ArcGIS","ArcGIS Server","Data","Map Service","Service"] |
| description:
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<DIV STYLE="text-align:Left;font-size:12pt"><DIV><DIV><P STYLE="margin:0 0 11 0;"><SPAN><SPAN>Net primary productivity indicates the difference between the rate of photosynthesis and the rate of respiration and represents the rate of energy storage by primary producers (primarily phytoplankton) in surface waters. This indicates the amount of energy available to other organisms in the ecosystem. This model uses chlorophyll-a, available light, and temperature information to incorporate photosynthetic efficiency. The daily production of organic matter (mgC/m</SPAN></SPAN><SPAN><SPAN>2</SPAN></SPAN><SPAN><SPAN>/d) by the growth of phytoplankton in the surface mixed layer, net of phytoplankton respiration, was estimated at monthly resolution based on satellite observations of Chlrorophyll-a (Chl-a), Photosynthetically Active Radiation (PAR) and Sea Surface Temperature (SST), using the vertically-generalised production model (Behrenfeld & Falkowski, 1997). Resolution is at 9 km.</SPAN></SPAN></P><P STYLE="margin:0 0 11 0;"><SPAN>Reference:</SPAN></P><P STYLE="margin:0 0 11 0;"><SPAN>Behrenfeld, M.J., Falkowski, P.G. (1997) Photosynthetic rates derived from satellite‐based chlorophyll concentration. </SPAN><SPAN STYLE="font-style:italic;"><SPAN>Limnology and oceanography, </SPAN></SPAN><SPAN>42: 1-20.</SPAN></P></DIV></DIV></DIV> |
| licenseInfo:
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<DIV STYLE="text-align:Left;font-size:12pt"><P><SPAN><SPAN>As a generalised model, this relationship most accurately characterises the open ocean, whereas additional factors are likely needed to better represent coastal regions. </SPAN></SPAN></P></DIV> |
| catalogPath:
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|
| title:
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Net primary production by VGP model |
| type:
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Map Service |
| url:
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|
| tags:
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["Net primary production by VGPM","VGPM","ocean productivity"] |
| culture:
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en-NZ |
| name:
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Net_primary_production_by_VGP_model |
| guid:
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22338098-EA10-4370-B4DD-0E49205926DF |
| minScale:
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0 |
| spatialReference:
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NZGD_2000_New_Zealand_Transverse_Mercator |