Mandatory options describing what the data is a source of and when it should be used: fieldname={STRING} -- name of output field calculated from this source output_stagger={U V M HH VV} -- the staggering of the output field dest_fieldtype={continuous categorical} -- type of field calculated from src priority={INTEGER} -- priority level of this source (larger number = higher priority) Options describing other aspects of the source: path={STRING} -- where to find the data fill_missing={REAL} -- value assigned to gridpoints that have no data halt_on_missing={yes no} -- halt if missing values found in output field z_dim_name={STRING} -- for 3-d output fields, name of z dimension masked={land water} -- ??? this is field should be masked by land/water Option to indicate which field the landmask should be computed from; should be specified for exactly one fieldname: landmask_water={INTEGER} -- compute landmask based on value of water landmask_land={INTEGER} -- compute landmask based on value of land For dominant category-type fields: dominant_category={STRING} -- name of dominant category to compute from src dominant_only={STRING} -- only compute a dominant category from src For derivatives (only for continuous fields): df_dx={STRING} -- calculate df_dx for this field, and name the result STRING df_dy={STRING} -- calculate df_dy for this field, and name the result STRING Other options: scale_factor={REAL} -- scale final field by this scalar interp_option={sixteen_pt four_pt nearest_neighbor average} -- interpolation type smooth_option={1-2-1 smth-desmth} -- smoothing type, if specified smooth_passes={INTEGER} -- number of smoothing passes Mandatory options describing the projection of the source: These options are used in the `index' file for each source, NOT in the input.table fieldtype={continuous categorical} -- type of this source data proj={lambert polar mercator regular_ll} -- projection of source dx={REAL} dy={REAL} missing_value={REAL} -- value of missing data signed={yes no} -- whether signed in 2's complement format known_x={REAL} known_y={REAL} known_lat={REAL} known_lon={REAL} truelat1={REAL} truelat2={REAL} stdlon={REAL} units={STRING} description={STRING} wordsize={INTEGER} -- how many bytes per value tile_x={INTEGER} -- number of points in x direction per tile tile_y={INTEGER} -- number of points in y direction per tile tile_z={INTEGER} -- number of points in z direction per tile tile_z_start={INTEGER} -- alternate to tile_z; starting z index tile_z_end={INTEGER} -- alternate to tile_z; ending z index tile_bdr={INTEGER} -- number of halo points around each tile category_min={INTEGER} -- for categorical data, min category in the source category_max={INTEGER} -- for categorical data, max category in the source