A Water Vapor Radiometer for the CO Mapping Array Project (COMAP)

A Water Vapor Radiometer for the CO Mapping Array Project (COMAP)

The CO Mapping Array Project (COMAP) is a carbon monoxide (CO) line intensity mapping experiment using a 19-feed 26-34 GHz focal plane spectrometer array on a 10.4 m dish at the Owens Valley Radio Observatory. We are developing a water vapor radiometer (WVR) that continuously measures the temporal v...

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Bibliographic Details
Published in:2023 United States National Committee of URSI National Radio Science Meeting (USNC-URSI NRSM) pp. 133 - 134
Main Authors: Kim, Junhan, Cleary, Kieran A., O'Neill, Sandra, Lamb, James W., Woody, David P., Harris, Andrew I., Dunne, Delaney A., Catha, Morgan, Hobbs, Richard, Kocz, Jonathon, Pearson, Timothy J., Philip, Liju, Powell, Travis W., Readhead, Anthony C. S.
Format: Conference Proceeding
Language:English
Published: USNC-URSI 10-01-2023
Subjects:
Arrays
Atmospheric measurements
Carbon monoxide
Instruments
Observatories
Radiometry
Rotation measurement
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Summary:The CO Mapping Array Project (COMAP) is a carbon monoxide (CO) line intensity mapping experiment using a 19-feed 26-34 GHz focal plane spectrometer array on a 10.4 m dish at the Owens Valley Radio Observatory. We are developing a water vapor radiometer (WVR) that continuously measures the temporal variability of the atmosphere's water vapor content along the telescope's line of sight to better calibrate the COMAP science data. The WVR is designed to monitor the rotational transition line of water vapor around 22.2 GHz, with a spectral measurement between 18 and 26 GHz and a measurement of continuum at 28-30 GHz. Here we describe the COMAP WVR instrument system.
DOI:10.23919/USNC-URSINRSM57470.2023.10043109