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如题,用grads的话要怎么操作 netcdf earthgrid_EmMw_20030701_20030731_merge { dimensions: nCol_nRow_nTimeLevels = UNLIMITED ; // (1036800 currently) nValsPerGrid = 10 ; nQC = 1 ; variables: short EmMw(nCol_nRow_nTimeLevels, nValsPerGrid) ; EmMw:long_name = "MW surface emissivity" ; EmMw:units = "none" ; EmMw:scale = 0.0001f ; EmMw:offset = 0.f ; float EmMw_Var(nCol_nRow_nTimeLevels, nValsPerGrid) ; EmMw_Var:long_name = "MW surface emissivity variance" ; EmMw_Var:units = "none" ; EmMw_Var:scale = 1.f ; EmMw_Var:offset = 0.f ; byte QC_Sum(nCol_nRow_nTimeLevels, nQC) ; QC_Sum:long_name = "summary quality flag for merged data" ; QC_Sum:units = "none" ; byte QC_Day(nCol_nRow_nTimeLevels, nQC) ; QC_Day:long_name = "day quality flag" ; QC_Day:units = "none" ; byte QC_Night(nCol_nRow_nTimeLevels, nQC) ; QC_Night:long_name = "night quality flag" ; QC_Night:units = "none" ; // global attributes: :case = "Version 1.0" ; :CreationTime = "Tue Apr 21 20:31:38 2009" ; :nDimUnlim = 3 ; :dimUnlimDims = 1440, 720, 1 ; :dimNamesUnlim1 = "nCol" ; :dimNamesUnlim2 = "nRow" ; :dimNamesUnlim3 = "nTimeLevels" ; :nDimFixed = 1 ; :dimFixedDims = 10 ; :dimNamesFixed1 = "nValsPerGrid" ; :dimUnlimName = "nCol_nRow_nTimeLevels" ; :nchmw = 10 ; :mwfrequencies = 10.65f, 10.65f, 18.7f, 18.7f, 23.8f, 23.8f, 36.5f, 36.5f, 89.f, 89.f ; :mwpolarizations = 0, 1, 0, 1, 0, 1, 0, 1, 0, 1 ; :map_projection_type = "Sinusoidal" ; :map_origin_latitude = 0.f ; :map_origin_longitude = 0.f ; :grid_origin_offset_row = 360.f ; :grid_origin_offset_col = 720.f ; :map_scale = 27.79973f ; :map_scale_units = "km" ; :earth_radius = 6371.2f ; :tile_column_index = 0 ; :tile_row_index = 0 ; :ncol_globaltiles = 1 ; :nrow_globaltiles = 1 ; :timeLevelIncrement = 31.f ; :timeLevelUnits = "days" ; :start_date = "20030701" ; :end_date = "20030731" ; }
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