The CARMA-NRO Orion Survey
  We present the first results from a new, high resolution, $^{12}$CO(1-0),
$^{13}$CO(1-0), and C$^{18}$O(1-0) molecular line survey of the Orion A cloud,
hereafter referred to as the CARMA-NRO Orion Survey. CARMA observations have
been combined with single-dish data from the Nobeyama 45m telescope to provide
extended images at about 0.01 pc resolution, with a dynamic range of
approximately 1200 in spatial scale. Here we describe the practical details of
the data combination in uv space, including flux scale matching, the conversion
of single dish data to visibilities, and joint deconvolution of single dish and
interferometric data. A $\Delta$-variance analysis indicates that no artifacts
are caused by combining data from the two instruments. Initial analysis of the
data cubes, including moment maps, average spectra, channel maps,
position-velocity diagrams, excitation temperature, column density, and line
ratio maps provides evidence of complex and interesting structures such as
filaments, bipolar outflows, shells, bubbles, and photo-eroded pillars. The
implications for star formation processes are profound and follow-up scientific
studies by the CARMA-NRO Orion team are now underway. We plan to make all the
data products described here generally accessible; some are already available
at https://dataverse.harvard.edu/dataverse/CARMA-NRO-Orion
