<div dir="ltr"><div><div><div><div>Use<br><br>sce = byte2flt( a->snow_cover_extent )<br></div>printVarSummary(sce)<br><br></div>The input 'snow_cover_extent' is binary (0 or 1): "surface_snow_binary_mask"<br></div>When averaging you will get fractional values like 0.31 or 0.82 or ...<br></div>*You* must decide how to interpret these values for "the area average for snow"<div><div><div><div><div><br><br></div></div></div></div></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Sep 10, 2014 at 11:18 PM, Ipshita Majhi <span dir="ltr"><<a href="mailto:ipmajhi@alaska.edu" target="_blank">ipmajhi@alaska.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div><div><div><div><div><div><div><div><div><div>; This program is to calculate the area average for snow for all the data period<br></div>Dear NCL,<br><br></div>I am working on CDO on the side and there are some errors with installing netcdf operator for me. I am working on that. I also thought of using NCL xMonthAvg the documentation does say high frequency data .<br><br></div>I am getting this error:<br></div>Variable:xMonth<br></div>Type:integer<br></div>Number of dimension:1<br></div>Dimensions and sizes: [573]<br></div>Coordinates;<br></div>fatal :Assignment type mismatch, right hand can't be coerced to type of left hand side<br></div>fatal :Error occured at line 4265"$NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl".<br><br></div><div>The global attributes for the variable of snow covered extent <br>byte snow_cover_extent(time, rows, cols) ;<br> snow_cover_extent:long_name = "NOAA/NCDC Climate Data Record of snow cover extent" ;<br> snow_cover_extent:standard_name = "surface_snow_binary_mask" ;<br> snow_cover_extent:grid_mapping = "coord_system" ;<br> snow_cover_extent:coordinates = "longitude latitude time snow_cover_threshold" ;<br> snow_cover_extent:valid_range = 0b, 1b ;<br> snow_cover_extent:flag_values = 0b, 1b ;<br> snow_cover_extent:flag_meanings = "no_snow snow_covered" ;<br> snow_cover_extent:_FillValue = -9b ;<br><br>*****************************************<br><br></div><div><div><div><div>I <br></div><div><br>******************************************<br>; This program is to calculate the area average for snow for all the data period<br><div><div><div><div><div><div><div><div>;*******************************************<br>load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"<br>load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_csm.ncl"<br>load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl"<br>;*******************************************<br><br>;The intention is to average the sce for each year and for each month<br><br>a=addfile("~/Documents/Snow_cover_IMS/<a href="http://nhsce_v01r01_19661004_20140602.nc" target="_blank">nhsce_v01r01_19661004_20140602.nc</a>","r")<br><br>sce=a->snow_cover_extent(:,:,:)<br>xMonthAvg = calculate_monthly_values(sce, "avg", 0, False)<br><br>;***************************************************<br><br></div><div>I will be grateful if you could guide me on this<br><br></div><div>Best Regards<span class="HOEnZb"><font color="#888888"><br></font></span></div><span class="HOEnZb"><font color="#888888"><div>Ipshita<br></div></font></span></div></div></div></div></div></div></div></div></div></div></div></div>
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