[R-sig-Geo] SST and chlorophyll data extraction in R

[Antonio Silva]

Dear R-Sig-Geo fellows


This is my first post to this list. My name is Antonio Olinto and I work as
researcher at Fisheries Institute, São Paulo, Brazil.


Well, I'd like to hear suggestions on how to proceed in R to extract sea
surface temperature and chlorophyll concentration data and calculate some
statistics from MODIS/AQUA data in a given area.


I used to do this in QGIS but available statistical parameters are limited
and I had to work with one image at a time. I found a reference to a
package named satin (
https://www.r-project.org/conferences/useR-2009/slides/Villalobos+GonzalezRodriguez.pdf)
but it seems it's not available anymore.


I have several  *.L3m_MO_SST_4.bz2 and *.L3m_MO_CHL_chlor_a_4km.bz2 files
obtained from
http://podaac.jpl.nasa.gov/dataset/MODIS_AQUA_L3_SST_THERMAL_MONTHLY_4KM_DAYTIME
and from http://oceandata.sci.gsfc.nasa.gov/MODISA/Mapped/Monthly/4km/chlor/


I also have a shapefile with the boundaries of the area of interest. I'd
like to have some statistics (maximum, minimum, mean, quantiles, ect.) of
both variables in this area.


Any indication of tutorials, sites or packages will be welcome.  Thanks in
advance.


All the best,

Antônio Olinto

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