CORALYNN-18 (pLMR)

Polarimetric L-Band Multibeam Radiometer

experiment Overview 

The PLMR measures both V and H polarisations using a single receiver with polarisation switch at incidence angles ±7°, ±21.5° and ±38.5° in either across track (push broom) or along track configurations. In the normal push broom configuration the 3dB beam width is 17° along track and 14° across track resulting in an overall 90° across track field of view. The instrument has a centre frequency of 1.413GHz and bandwidth of 24MHz, with specified NEDT and accuracy better than 1K for an integration time of 0.5s, and 1K repeatability over 4 hours. It weighs 46kg and has a size of 91.5 cm × 91.5 cm × 17.25 cm. Calibrations will be performed before, during and after each flight. The before and after flight calibrations are achieved by removing PLMR from the aircraft and making brightness temperature measurements of a calibration target and the sky.

PLMR Equipment

Flight lines - PLMR+PLIS+Optical

PLEASE NOTE: The following data sets should be acknowledged according to the following:

CORALYNN-17 & CORALYNN-18:

Ye, N., Wu, X., Walker, J. P., Boopathi, N., Zhu, L., Shen, X., Jackson, T. J., Kerr, Y., Kim, E., McGrath, A. & Yeo, I. Y., PopStefanija, I., 1 Mar 2019, 2019 URSI Asia-Pacific Radio Science Conference, AP-RASC 2019. Airborne P-band passive microwave soil moisture remote sensing: preliminary results. IEEE, Institute of Electrical and Electronics Engineers, 8738311. (2019 URSI Asia-Pacific Radio Science Conference, AP-RASC 2019).