title: Extracting data from NetCDF
body: <p>I have downloaded the sea surface temperature for January from here <a href="https://oceancolor.gsfc.nasa.gov/l3/" rel="nofollow noreferrer">https://oceancolor.gsfc.nasa.gov/l3/</a></p>
  
  <p>and imported it into R. </p>
  
  <p>I know how to crop using extent(ymax, ymin, xmax,xmin) but I can't figure out how to do it just for one station (53.9S, 174,1W) or the nearest one to that coordinate. Is there a way I can crop the data just for one station? </p>
  
  <p>val &lt;- extract(174.1,53.9)
  Error in .local(x, y, ...) : extents do not overlap</p>
  
  <pre><code>SST_Jan &lt;- brick("~https://oceandata.sci.gsfc.nasa.gov/cgi/getfile/A20021822018212.L3m_MC_SST_sst_9km.nc", stopIfNotEqualSpaced = FALSE, varname = "sst")
  
  print(SST_Jan)
  
  val&lt;-extract(174.1, 53.9)
  
  SST_Jan_station &lt;- extract(SST_Jan, val)
  </code></pre>
  
  <p>I would like to be able to plot the changes in SST at that particular location over the 12 months</p>
  
  <p>Thank you,</p>