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ADCPtools\nBeam to Earth coordinate transformations and other utilities for Acoustic Doppler Current Profiler (ADCP) data.\n\n## Convert profiles of along-beam velocity to Earth coordinates (east-north-up).\nConvert raw along-beam velocity (positive toward transducer) time series (ntimes x nbins) to Earth-referenced velocity:\n```\n[u, v, w, w5] = janus5beam2earth(head, ptch, roll, theta, b1, b2, b3, b4, b5)\n```\n\nor, with all optional arguments specified,\n```\n[u, v, w, w5] = janus5beam2earth(head, ptch, roll, theta, b1, b2, b3, b4, b5, ...\n                                 'uvwBeam5', true, 'Gimbaled', true, 'Binmap', 'linear', r, r5)\n```\n\nWhere\n\n* ```b[1-5]``` are the along-beam velocity time series [ntimes x nbins] (positive toward transducer face).\n\n* ```u```, ```v```, ```w``` are the Earth-referenced (eastward, northward, upward) velocity time series [ntimes x nbins].\n\n* ```w5``` is the vertical velocity calculated from the vertical beam only.\n\n* ```head```, ```ptch``` and ```roll``` are the heading (rotation about the z-axis (beam 5), positive clockwise), pitch (rotation about the x-axis (beam 1), positive clockwise) and roll (rotation about the y-axis (beam 3), positive clockwise) angles measured by the ADCP, in degrees.\n\n* ```theta``` is the beam angle measured from beam 5's direction (vertical if the instrument is level), in degrees.\n\n* ```'uvwBeam5'``` (```true```/```false```) indicates whether to use the vertical beam data to calculate ```u```, ```v``` and ```w```.\n\n* ```'Gimbaled'``` (```true```/```false```) indicates whether the pitch and roll sensors were gimbaled (mounted on a free-swiveling platform as opposed to a rigid frame).\n\n* ```'Binmap'``` (```'none'```/```'nn'```/```'linear'```) indicates whether or not to perform bin-mapping on the raw beam velocities. Bin-mapping here means interpolating the velocities from all beams to the same horizontal plane before converting to instrument and then Earth coordinates. Defaults to ```'none'```, _i.e._, the assumption that pitch and roll are zero at all times. ```'linear'``` and ```'nn'``` specify linear and nearest-neighbor interpolation, respectively.\n\n* ```r``` and ```r5``` are vectors with the along-beam positions of the center of each bin for the Janus (\\#1-4) and vertical (\\#5) beams. Required only if ```'Binmap'``` is not ```none```.\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fapaloczy%2Fadcptools","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fapaloczy%2Fadcptools","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fapaloczy%2Fadcptools/lists"}