Difference between revisions of "PSD"

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(Created page with '==PSD Product Description== under construction<br> <p><math>N(D)=N_o \left ( \frac{D}{D_o} \right )^\xi</math> <P> The Particle Size Distribution Slope (<math>\xi</math>) and Pa…')
 
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under construction<br>
 
under construction<br>
  
<p><math>N(D)=N_o \left ( \frac{D}{D_o} \right )^\xi</math>
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<P>
+
<math>N(D)=N_o \left ( \frac{D}{D_o} \right )^\xi</math>
 +
 
 +
 
 
The Particle Size Distribution Slope (<math>\xi</math>) and Particle
 
The Particle Size Distribution Slope (<math>\xi</math>) and Particle
differential Number concentration N<sub>o</sub> (for D<sub>o</sub>=2<math>\mu</math>m)
+
differential Number concentration N<sub>o</sub> (for D<sub>o</sub>=2<math>\mu</math>m) were calculated following Kostadinov ''et.al.'' 2009 <ref>Kostadinov, T.S., D.A.Siegel, & S. Maritorena (2009) Retrieval of the particle size distribution from satellite ocean color observations. ''J. Geophys. Res.,114,'' C09015,doi:10.1029/2009JC005303.</ref>
 
 
were calculated following Kostadinov ''et.al.'' 2009
 
ref>Kostadinov, T.S., D.A.Siegel, & S. Maritorena (2009) Retrieval of the particle size distribution from satellite ocean color observations. ''J. Geophys. Res.,114,'' C09015,doi:10.1029/2009JC005303</ref>.
 
  
 
<br>
 
<br>
The method was applied to
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The method was applied to
 
[http://oceandata.sci.gsfc.nasa.gov/SeaWiFS/Mapped/Monthly/9km/Rrs/ SeaWiFS L3 monthly Rrs]<br>
 
[http://oceandata.sci.gsfc.nasa.gov/SeaWiFS/Mapped/Monthly/9km/Rrs/ SeaWiFS L3 monthly Rrs]<br>
  
  
 +
file naming convention uses most of the original SeaWiFS file name, replacing RRS_rrs_*_9km.bz2 with .XiNo.nc.
  
 +
SYYYYdddYYYYddd.L3m_MO.XiNo.nc<br>
  
  
<br>
+
here YYYYdddYYYYddd is the  year and 3-digit day-of-year, for the start and end of the month long composite file.
SYYYYdddYYYYddd.L3m_MO.XiNo.nc
 
<br>
 
 
 
file naming convention uses most of the original SeaWiFS file name,
 
replacing RRS_rrs_*_9km.bz2 with .XiNo.nc.
 
 
 
<p>
 
here YYYYdddYYYYdddd is the  year and 3-digit day-of-year, for the start and end of the month long composite file.
 
 
<br>
 
<br>
 
each netcdf (V4 "classic") file contains the variables Xi (<math>\xi</math>)and logNo
 
each netcdf (V4 "classic") file contains the variables Xi (<math>\xi</math>)and logNo
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references:<references/>
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References: <references/>
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== Data (link to FTP site) ==
 +
* [ftp://ftp.oceancolor.ucsb.edu//pub/org/oceancolor/MEaSUREs/PSD/  SeaWiFS-based monthly PSD]

Revision as of 10:51, 16 February 2012

PSD Product Description

under construction


<math>N(D)=N_o \left ( \frac{D}{D_o} \right )^\xi</math>


The Particle Size Distribution Slope (<math>\xi</math>) and Particle differential Number concentration No (for Do=2<math>\mu</math>m) were calculated following Kostadinov et.al. 2009 <ref>Kostadinov, T.S., D.A.Siegel, & S. Maritorena (2009) Retrieval of the particle size distribution from satellite ocean color observations. J. Geophys. Res.,114, C09015,doi:10.1029/2009JC005303.</ref>


The method was applied to SeaWiFS L3 monthly Rrs


file naming convention uses most of the original SeaWiFS file name, replacing RRS_rrs_*_9km.bz2 with .XiNo.nc.

SYYYYdddYYYYddd.L3m_MO.XiNo.nc


here YYYYdddYYYYddd is the year and 3-digit day-of-year, for the start and end of the month long composite file.
each netcdf (V4 "classic") file contains the variables Xi (<math>\xi</math>)and logNo

(<math>log_{10}(N_o</math>) in the 2160x4320 SMI format these are single floats with a fill value of -999.


References: <references/>

Data (link to FTP site)