<p>Hi, <br>
</p><p> I have downloaded CMIP5 ocean temp. data
<br>(tos_Omon_ACCESS1-0_historical_r1i1p1_185001-200512.nc<span id="_editor_bookmark_start_1" style="display: none; line-height: 0px;"></span>) <br> but find
that the horizontal grid is not regular grid used for GRADS <br>(see below) <br>
</p><p> Therefor I think I need to regrid the ocean temp. data from these
<br>irregular grid points to the regular 1.0*1.0 grid. <br>
</p><p> I am asking if NCL can do the interpolation? If so, Could you point
<br>out to me the key sentences used in NCL scripts? <br>
</p><p>
</p><p> Thanks, <br> Zane<span id="_editor_bookmark_start_0" style="display: none; line-height: 0px;"></span><br></p><p>-------------------- <br>netcdf <span id="_editor_bookmark_start_2" style="display: none; line-height: 0px;"></span> <span style="line-height: 1.5; font-size: 14px;">tos_Omon_ACCESS1-0_historical_r1i1p1_185001-200512.nc｛<span id="_editor_bookmark_start_3" style="display: none; line-height: 0px;"></span></span></p><p>Dimensions: 5</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>time = 1872;</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>j = 300;</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>i = 360;</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>bnds = 2;</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>vertices = 4;</p><p>Global Attributes: 28</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>: institution = "CSIRO (Commonwealth Scientific and Industrial Research Organisation, Australia), and BOM (Bureau of Meteorology, Australia)";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>: institute_id = "CSIRO-BOM";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>: experiment_id = "historical";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>: source = "ACCESS1-0 2011. Atmosphere: AGCM v1.0 (N96 grid-point, 1.875 degrees EW x approx 1.25 degree NS, 38 levels); ocean: NOAA/GFDL MOM4p1 (nominal 1.0 degree EW x 1.0 degrees NS, tripolar north of 65N, equatorial refinement to 1/3 degree from 10S to 10 N, cosine dependent NS south of 25S, 50 levels); sea ice: CICE4.1 (nominal 1.0 degree EW x 1.0 degrees NS, tripolar north of 65N, equatorial refinement to 1/3 degree from 10S to 10 N, cosine dependent NS south of 25S); land: MOSES2 (1.875 degree EW x 1.25 degree NS, 4 levels";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>: model_id = "ACCESS1-0";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>: forcing = "GHG, Oz, SA, Sl, Vl, BC, OC, (GHG = CO2, N2O, CH4, CFC11, CFC12, CFC113, HCFC22, HFC125, HFC134a)";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>: parent_experiment_id = "piControl";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>: parent_experiment_rip = "r1i1p1";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>: branch_time = 109207;</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>: contact = "The ACCESS wiki: http://wiki.csiro.au/confluence/display/ACCESS/Home. Contact Tony.Hirst@csiro.au regarding the ACCESS coupled climate model. Contact Peter.Uhe@csiro.au regarding ACCESS coupled climate model CMIP5 datasets.";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>: history = "CMIP5 compliant file produced from raw ACCESS model output using the ACCESS Post-Processor and CMOR2. 2012-01-15T21:24:32Z CMOR rewrote data to comply with CF standards and CMIP5 requirements.";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>: references = "See http://wiki.csiro.au/confluence/display/ACCESS/ACCESS+Publications";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>: initialization_method = 1;</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>: physics_version = 1;</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>: tracking_id = "0ae7d1af-8d73-4b79-b2e3-6e6ae10ce782";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>: version_number = "v20120115";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>: product = "output";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>: experiment = "historical";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>: frequency = "mon";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>: creation_date = "2012-01-15T21:24:32Z";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>: Conventions = "CF-1.4";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>: project_id = "CMIP5";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>: table_id = "Table Omon (27 April 2011) 694b38a3f68f18e58ba80230aa4746ea";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>: title = "ACCESS1-0 model output prepared for CMIP5 historical";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>: parent_experiment = "pre-industrial control";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>: modeling_realm = "ocean";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>: realization = 1;</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>: cmor_version = "2.8.0";</p><p>Variations: 9</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>NC_DOUBLE time(time);</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>time: bounds = "time_bnds";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>time: units = "days since 0001-01-01";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>time: calendar = "proleptic_gregorian";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>time: axis = "T";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>time: long_name = "time";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>time: standard_name = "time";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>NC_DOUBLE time_bnds(time,bnds);</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>NC_INT j(j);</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>j: units = "1";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>j: long_name = "cell index along second dimension";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>NC_INT i(i);</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>i: units = "1";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>i: long_name = "cell index along first dimension";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>NC_FLOAT lat(j,i);</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>lat: standard_name = "latitude";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>lat: long_name = "latitude coordinate";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>lat: units = "degrees_north";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>lat: bounds = "lat_vertices";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>NC_FLOAT lon(j,i);</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>lon: standard_name = "longitude";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>lon: long_name = "longitude coordinate";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>lon: units = "degrees_east";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>lon: bounds = "lon_vertices";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>NC_FLOAT lat_vertices(j,i,vertices);</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>lat_vertices: units = "degrees_north";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>NC_FLOAT lon_vertices(j,i,vertices);</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>lon_vertices: units = "degrees_east";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>NC_FLOAT tos(time,j,i);</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>tos: standard_name = "sea_surface_temperature";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>tos: long_name = "Sea Surface Temperature";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>tos: comment = ""this may differ from ""surface temperature"" in regions of sea ice."";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>tos: units = "K";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>tos: cell_methods = "time: mean";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>tos: cell_measures = "area: areacello";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>tos: history = "2012-01-15T21:24:31Z altered by CMOR: replaced missing value flag (-1e+20) with standard missing value (1e+20).";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>tos: missing_value = 1E+20;</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>tos: _FillValue = 1E+20;</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>tos: associated_files = "baseURL: http://cmip-pcmdi.llnl.gov/CMIP5/dataLocation gridspecFile: gridspec_ocean_fx_ACCESS1-0_historical_r0i0p0.nc areacello: areacello_fx_ACCESS1-0_historical_r0i0p0.nc";</p><p><span class="Apple-tab-span" style="white-space:pre"> </span>tos: coordinates = "lat lon";</p><p></p><p>Unlimited dimension: 0<span id="_editor_bookmark_start_4" style="display: none; line-height: 0px;"></span></p><p>｝</p><p><span style="line-height: 1.5; font-size: 14px;"><br></span></p><p><br></p><p><br></p>